Choosing an appropriate smart book scanner should be based on application scenarios, scanning originals, workload and budget.

If automatic book scanner is for personal use, a convenient, easy-to-use and reasonable price scanner is enough. If it is for office use, the situation will be much more complicated. It is necessary to consider the scanner brand, system compatibility, function integration, etc.

Scanning single page plane original, such as contract, ID card, receipt, etc., the ordinary flat scanner can meet such scanning requirements. The scanning speed is about 5S / page. The advantage of this kind of scanners is that they are relatively cheap and have a good scanning effect. The disadvantages are slow processing speed and complex hardware and software operation. The scanning cycle is long.

If you want to scan books and periodicals, in this case, the scanning speed is the first consideration, and ordinary flatbed scanners are not competent (imagine that you need a whole day to scan a Book). Besides, due to the existence of the spine, the large shadow and serious distortion on the scanned image also make us reluctant to choose a flat scanner.

If it is allowed to disassemble books and cause some damage to books and periodicals, the paper feed scanner can be considered. The scanning process does not need too much manual operation.

As long as the books and periodicals are correctly placed, the scanning will be completed automatically. This scanner is characterized by high speed and no need for manual operation. However, its disadvantages are also obvious - it causes damage to the original books and periodicals, and it will be very troublesome once the paper is jammed (in fact, the books and periodicals scanned by the paper feed scanner are easy to jam).

If you are looking for a lossless and efficient way to scan, you need a professional non-contact easy book scanner. The non-contact scanning method will not cause any damage to the original. At the same time, it is easy to operate: open the books and periodicals on the manuscript table, and click the scanning button to start scanning. After scanning, just turn the page to start the next scanning cycle. It perfectly captures all the details of the original, truly restores the original colour, and ensures high-quality data output.

At present, most of the professional non-contact camera scanner in the market adopt the arrangement of the imaging lens and linear CCD. When ocr book scanner scanning books, ancient books, newspapers and other original parts, use the change of distance to maintain the correct focus. In the a3 book scanner scanning process, the linear CCD sensor will capture the information in the original in the order of red, green and blue lines. When the CCD processor converts these lines into the correct order, the image is composed of the full resolution of RGB value, without the phenomenon of lacking colour channel of matrix CCD.

The linear CCD sensor can convert the light signal on the surface of the original book into an electrical signal. The colour filter provides a very high colour saturation for red, green and blue continuous CCD elements, which is the characteristic of a typical linear CCD scanner. The pixel size of high-quality linear CCD is quite large, 10 μ m × 10 μ m is a typical pixel size value. Larger pixel sizes can help reduce noise and other possible effects on image quality.

In the scanning system, reducing the lens quality has a great influence on the image quality. However, if compared with the lens in the matrix CCD sensor module, the effect is much smaller. Because only the middle part of the lens is used effectively when the lens is collecting images. To get the same image quality as linear CCD, the lens of a matrix CCD sensor must be twice the diameter of the linear CCD sensor. Even in this way, the matrix CCD lens will have an obvious colour difference, geometric distortion and strong loss at the corner.

Matrix CCD sensor module uses a planar CCD composed of very small pixels. At present, the matrix CCD sensors are all arranged on a standard Bayer filter by two green, one red and one blue pixel according to the rule of four times. By using this technology, two times of green channel and four times of red and blue channel are reduced in image acquisition. Therefore, compared with a linear CCD sensor, the biggest disadvantage of matrix CCD is that it will produce quite a lot of noise, and the collected colour is not accurate. These matrix CCD image sensors are not suitable for scanners because they are good at taking pictures rather than scanning. The original intention of the matrix CCD sensor design is not to replace the scanner design, but to get different images according to the different focal length of the target at different far and near positions.

Interlaced scanning and progressive scanning are two techniques of book scanner camera are used to read and display image sensor information. Interlaced scanning is mainly used for CCD. Progressive scanning is used for CCD or CMOS sensors. How to check the scanning quality of the image? Here are three tips for mastering the scanning image inspection of auto book scanner.

1. Check image scaling range

For many primary users, checking image quality often means checking the hue of the image. They think that good colours are equal to good images. This is only one aspect of the problem. The most critical factor to look at an image is to check its scale, that is, the level of the image. And the so-called level is the varying degree from dark tone to bright tone in the image. To check the image level, we need to use professional tools, such as Photoshop and imagepais2.

The pipette tools in this software can check the level of the image, especially for the highlight and dark areas.

If a large area of white or black with the same value appears in the highlighted area and the dark area, or the change range of the value is very small, it means that the image level is poor. The images with good scanning quality have clear layers and even colour scale distribution. Besides, the "histogram function" in Photoshop can also help the user to check the status of the scanned image to see whether the continuous level smoothly transits from light to dark or whether there is a ribbon gap. If there is an obvious bandgap, the density value of the scanner selected by the user is low and should be adjusted accordingly.

2. Check image colour

When the image has enough layers, we should check whether the colour of the image is balanced, that is, whether the image is biased. The easiest way to check colour balance is to check neutral grey. Grey balance is a gradual process from the smallest black (0%) to the largest white (100%) in the image, and it is one of the important parameters for converting RGB to CMYK. Theoretically, mixing equal amounts of C, m, y inks will produce neutral ash. But in fact, due to the difference in ink quality, more or less will cause a certain proportion of deviation. Neutral grey can only be achieved in a certain proportion. Users can print from Photoshop

Inks setup function to determine the correct CMYK value.

The easiest way to check image colour is to open the info panel in Photoshop and move the cursor to the brightest highlight and darkest dark area of the image. Note the data displayed on the info panel. If the RGB value read in the highlight and low-key areas is between 250 and 5, it means that the colour range of the scanned image has enough details and the image quality is very good.

3. Check the brightness of the image

It is also important to check the brightness of the image. We compare it with the original to see if the scanned image is too dark or too bright. Too dark or too bright to get the ideal image. It is a simple method to adjust the gamma value when the image is too dark. But doing so will cause the scanned image to lose information. In fact, the easiest way to check the brightness of an image is to compare it with the original. In CYMK mode, try to read the colour value on the scanned image to see if it is close to the original.

In fact, the scanning process of fast book scanner has always been simple. But to get a high-quality scanning image, there are too many variables involved. If we want to get a perfect scanning image, the quality control of the scanned image is very important. And to achieve the above points seriously is undoubtedly an important factor to achieve perfect output.

Brightness is the light intensity that the 720p mini projector outputs to the screen, and also the brightness of the projected image. In general, the higher the brightness of the projector, the brighter the image of the same size projected on the screen, and the clearer the image. However, the brightness of the image that our eyes can perceive is not only determined by the brightness of the projector, but also greatly related to the intensity of the ambient light and the size of the image. The stronger the ambient light, the dimmer the brightness of the image perceived by our eyes. Therefore, users must choose the appropriate brightness according to the environmental conditions of their projector. It is not necessarily as bright as possible. In the case of the same other indicators, the higher the brightness is, the higher the price of the projector will be. At the same time, the brightness of the image perceived by our eyes will have a certain range. Beyond this range, the our eyes will feel uncomfortable, especially after watching the image with high brightness for a long time. Our eyes will feel tired and may get hurt to some extent.

It is necessary to remind the user that in addition to choosing the brightness index according to the space size, the user should also consider the lighting conditions of the use environment, screen type and other factors. Under the same brightness, different ambient light conditions and different screen types will produce different display effects. When users choose 3500 lumens projector, they should have a margin for brightness index. Because the brightness of the projector largely depends on the light bulb in the projector, the brightness output of the light bulb will decline with the use time, which will inevitably cause the brightness of the projector to be declined. After 2000 hours of use, the brightness of the projector product decays rapidly, so when users choose the projector product, they must have a comprehensive consideration of the brightness index.

Generally speaking, in the 40-50 square meters of home or reception hall, it is recommended to choose 800-1200 lumens for projector brightness, and 60-72 inches for screen; in the 60-100 square meters of small conference room or standard classroom, it is recommended to choose 1500-2000 lumens for projector brightness, 80-100 inches for screen; in the 120-200 square meters of medium conference room and ladder classroom, it is recommended to choose 2000-3000 lumens for the brightness of the projector, and 120-150 inches for the screen; in large conference rooms or auditoriums with an area of 300 square meters, professional engineering machines with an area of more than 3000 lumens should be selected most 720p projector, and the screens should be more than 200 inches.

1 Entry-level individual users

Generally speaking, we should first pay more attention to economic practicability and ease of use, instead of chasing too high resolution. Even for image processing enthusiasts, a resolution of 600dpi can meet the basic requirements. In terms of ease of use, attention should be paid to whether there is a detailed installation and use manual attached, whether the scanning software interface is easy to understand and to set various options, whether there are some convenient function keys designed, etc.When buying, see whether the color style of the scanner is suitable for one's own aesthetic habits. Choosing a satisfactory appearance, volume and style can well decorate the family environment.

2. Ordinary office users

If you are an ordinary office user, the purpose is very clear, that is to scan faster. Therefore, when purchasing, more attention should be paid to the scanning speed of the scanner and whether it is equipped with a paper feeder, which is conducive to the automatic continuous scanning of manuscripts. In terms of resolution, about 1200dpi can meet almost all the requirements. As for color, it is not as high as that of professional users because of the common color deviation of computer screens. In addition, the ease of use and intelligent design of the scanner are equally important to ordinary office users. Humanized design can save some complicated scanning steps, especially for users who often need batch scanning.

3. Professional users

Users who are engaged in professional image processing in graphic design, advertisement production, printing and typesetting and other fields have high-end requirements on all aspects of high speed ocr scanner performance, especially the scanning effect, which requires color restoration, clarity and level to be higher than that of ordinary scanners. When purchasing a scanner, in addition to paying attention to high hardware color bits and high resolution (generally above 1200dpi), you should also know another important parameter of the scanner: dynamic density (this parameter is generally less than 2.0 for ordinary scanners). The higher the dynamic density, the stronger the scanner's hierarchical performance. It is generally necessary to scan films, negatives and other transparent manuscripts. Since the storage space occupied by higher resolution scanning pictures is certain, if the scanner is equipped with a faster SCSI interface (or IEEE 1394), the data transmission time can be greatly shortened and the work efficiency can be improved. Thus the requirements for volume, weight and appearance characteristics are not important.

4. Comprehensive guidance

The restoration degree of an original image by a auto book scanner is not only related to the above resolution, but also affected by the color depth and gray scale. The scanning speed is closely related to system configuration, scan resolution setting, scanning size, magnification, etc. Fast scanner speed is important, but the image quality cannot be affected by improving the speed. Some scanners with very fast scanning speed will lose some image information during scanning. Therefore, you must try to scan it yourself before making a formal purchase. It is best to bring along some different scanned originals, such as photos, printed images, newspaper text, etc. At the same time, you can also try to scan some objects, such as keys and cigarettes, to see if the effect is satisfactory.

For ICODIS,Feel free to write us for any and all enquiries, we're always happy to help and will answer as quickly as possible!

Mini projector is used more and more widely, not only in some business occasions, but also in many people's home film systems. But most people don't care much about how to use the projector correctly.

In fact, there will be many small problems in the use of the mini led projektor. In addition to the basic installation and maintenance, there will be some puzzling occasion in the use of the projector, which will make the user misunderstand the projector. Today, I'll explain the common problems that the projector occasionally has, so that users won't be too flustered in the use process.

The first is about sound.

Many users will be confused about the sound when using the projector. The speaker of the projector is very small. The main function of the projector itself is to show the perfect picture, and the loudspeaker takes up too much internal space, so the loudspeaker design of the projector will be relatively small, so it is better to cooperate with the external sound equipment when using the projector. At present, most of the projectors on the market are equipped with sound output terminals, which is also fully prepared for the external sound equipment.

Secondly, the brightness of the projector.

Many users responded that the projection screen was not as bright as before after the projector was used for a period of time. They asked if there was a quality problem with the projector. Actually not. At present, most projector products use the built-in bulb penetration projection mode, and the projection brightness is mainly determined by the bulb, while the display brightness of the projector's bulb is inversely proportional to its use time. Generally speaking, after 120 hours of use, the brightness of the bulb will drop by 20% - 30%. Therefore, users must pay attention to protecting the projector's bulb in normal use. Do not use it for a long time. Try to turn off the projector when not in use.

Finally, the problem of the picture.

Sometimes the projector has the state that image is unstable state, or the picture blurs and shakes. This is also not a problem with the projector function. Some tips are needed to solve it. First look at the image instability.

The output image of the projector is unstable and has stripe fluctuation, which is mostly due to the inconsistency between the power signal of the signal source and the power signal of the projector. The user needs to plug the power of the projector and the signal source into the same terminal block, which can basically solve this problem.

The condition of blurred and dithering picture. Generally speaking, if the projector is too far away from the signal source, it will weaken signal, and the performance projected on the screen can be blurred or dithered. So when using the projector, it is noted that the distance between the signal source and the projector can not be too large. If the distance between the two is large, it is recommended to use a signal amplifier to help the projector receive the signal from the signal source.

For ICODIS,Feel free to write us for any and all enquiries, we're always happy to help and will answer as quickly as possible!

With the increasing popularity of mobile phones, taking pictures instead of cameras, music playback functions instead of MP3s, and various scanning apps are emerging. The parameters and technology of mobile phone camera and camera scanner are getting higher and higher. Is it still necessary for a clunky and complicated scanner?

Whenever a new technical solution comes into being, it always conflicts with the old one.

Will the popularity of WeChat replace SMS? It won't. Although most people receive SMS verification codes, their formal security and uniqueness prevent them from being completely replaced.

Will the mobile app replace the easy book scanner? It won't.

1) Scan quality. The scanning app solution is based on CMOS technology, which is the camera. The CMOS effect itself is not as good as the CCD, and the scanning effect of the App depends in part on the camera pixels of the mobile phone itself.

2) Professionalism. Many applications are now integrated on mobile phones, and a single mobile phone can meet many needs. However, we still consume cameras, MP3s, game consoles and other products to meet our more segmented needs. In more rigorous occasions, mobile phones cannot replace cameras, Meitu Xiuxiu cannot temporarily replace PS, and apps cannot replace scanners.

3) Application scenarios. In general, apps are mostly used by individuals. When we scan documents daily, such as small diaries, it is not necessary to purchase a scanner, and the App is sufficient. But the biggest market for scanners is at the corporate level. Can you imagine what it looks like to scan millions of documents with App in archives, libraries, banks, public security, procuratorates, courts, etc.? No matter how high my salary is, I've been holding my phone mechanically to scan, change files, and generate finished products ... I won't do it either.

The advantage of App is that it is portable and fast. It's great for personal use. However, it cannot always replace the scanner itself.

For ICODIS,Feel free to write us for any and all enquiries, we're always happy to help and will answer as quickly as possible!

The size of space

The size of the space is the size of the living room, movie room, etc. where you use the projector. If your living room area is more than 20 square meters, you can consider buying a led home cinema projector; if not enough, it is not recommended.

Price

The price gap of mini home projector is large, generally from a few thousand yuan to about 50,000, or even higher. The prices of foreign brands are higher than domestic prices. Domestic projection prices are lower. The reason is not explained in detail. For most consumers, products below 30,000 yuan can meet household needs.

Brightness

Brightness is one of the most important indicators for purchasing a projector.

Noise

Those who have never used a projector do not know that the projector will make noise when used. The noise of some projectors can severely affect viewing and is unbearable. When purchasing a projector, considering low noise should be an important part of the purchase. At present, many manufacturers have launched low-noise projectors, and the price is not expensive. Generally speaking, products with a noise level below 40dB are acceptable, but when buying, you should listen and compare yourself in a quieter environment to see if it will interfere with yourself.

Choose DLP or LCD

Whether it is LCD or DLP is actually not so important. What we need to see is the effect of the projector. And the effect of a projector is inseparable from many things such as lenses, light bulbs, and circuits. In principle, LCD projectors are the most common and their prices are relatively low. The biggest advantage of LCD projectors is that the colors are great. The three primary colors of red, green and blue are completed by three separate LCD panels. The brightness and contrast of each color can be controlled individually. And three colors of light can reach the screen almost simultaneously, so various colors can be reproduced realistically. Although the color reproduction of DLP projectors is slightly worse, the three-color light of a single-chip DLP projector is reflected by the same micromirror to the same pixel, and there is no convergence problem, so the black area is truly black, and the edge of the pixel will not appear Some burrs and shadows in the LCD. Therefore, when showing some thin lines, DLP projectors are clearer and sharper than LCD projectors, black and white are more pure, and gray levels are richer. Of course, the biggest advantage of a single-chip DLP projector is its small size and light weight. Many products even have only 1-2 kg. Generally speaking, DLP projectors are slightly more expensive. Seeing is believing. Whether it is LCD or DLP, it is recommended to compare carefully at the time of purchase.

Trapezoidal correction

In the use of the projector, the position of the projector must be at right angles to the projection screen as far as possible to ensure the projection effect. If the verticality of the two cannot be guaranteed, the picture will be trapezoidal. If it is not on the ceiling, but on the table, it is difficult for us to guarantee "vertical". In this case, we need to use the "keystone correction function" to correct the keystone to ensure that the picture has a standard rectangle. Keystone correction usually has two methods: optical keystone correction and digital keystone correction. Optical keystone correction refers to adjusting the keystone by adjusting the physical position of the lens; another type of digital keystone correction is software to achieve keystone correction. At present, almost all projector manufacturers have adopted digital keystone correction technology, and most of the projectors using digital keystone correction support vertical keystone correction function, that is, the projector can adjust its height in the vertical direction. The resulting trapezoidal is trapezoidally corrected in the vertical direction by the projector. The picture can be made rectangular, which is convenient for users.

For ICODIS,Feel free to write us for any and all enquiries, we're always happy to help and will answer as quickly as possible!

The minimum width of the projector is unlimited. For the same projector, the distance is longer , and the screen is larger. The distance is closer, and the screen is smaller. If the curtain is too small to buy, you can customize it, or you can brush the wall white.

If you hang, use a dlp mini projector hanger, with one power cable, one audio and video cable. If there are many video signal sources, a video switcher can be added to switch TV programs, video players, camera videos, etc. together. The camera is easy to connect, just switch the camera video signal to the video switcher. It ’s free to see what you want.

The most important thing to pay attention to is: when shutting down, use the remote control to softly shut down, and then cut off the power after the fan has completely stopped, so as to truly cool the protection bulb. In addition, take a while to remove the air filter and clean it. And don't look directly into the projection lens, because it hurts your eyes.

Use a fixed universal hanger to install the projector. If it is an electric hanger, generally the hanger is fixed on the house beam and then the projector is hung, and the height is generally about 30cm below the house.

When you turn on the power switch, the bulb should be on, and the fan will start rotating. If the fan does not turn off, immediately turn off the power and stop using it, and ask for the reason.

All the cables must be embedded in place (video cable, audio cable, socket ...), the location of the portable dlp projector must be considered in advance, and the size of the projection cloth must be accurate. It is best to choose a socket with a switch if you want to place the projector in the ceiling mount position. If it's an electric screen, you also need to put the power there. It is best to make a ceiling cassette in the place where the curtain is hoisted, and it is necessary to strengthen the place where the curtain and the projector are installed.

For ICODIS,Feel free to write us for any and all enquiries, we're always happy to help and will answer as quickly as possible!

The size of space

The size of the space is the size of the living room, movie room, etc. where you use the   mini home projector. If your living room area is more than 20 square meters, you can consider buying a projector; if not enough, it is not recommended.

Price

The price gap of projectors is large, generally from a few thousand yuan to about 50,000, or even higher. The prices of foreign brands are higher than domestic prices. Domestic projection prices are lower. The reason is not explained in detail. For most consumers, products below 30,000 yuan can meet household needs.

Brightness

Brightness is one of the most important indicators for purchasing a projector.

Noise

Those who have never used a projector do not know that the projector will make noise when used. The noise of some projectors can severely affect viewing and is unbearable. When purchasing a projector, considering low noise should be an important part of the purchase. At present, many manufacturers have launched low-noise projectors, and the price is not expensive. Generally speaking, products with a noise level below 40dB are acceptable, but when buying, you should listen and compare yourself in a quieter environment to see if it will interfere with yourself.

Choose DLP or LCD

Whether it is LCD or DLP is actually not so important. What we need to see is the effect of the projector. And the effect of a projector is inseparable from many things such as lenses, light bulbs, and circuits. In principle, LCD projectors are the most common and their prices are relatively low. The biggest advantage of LCD projectors is that the colors are great. The three primary colors of red, green and blue are completed by three separate LCD panels. The brightness and contrast of each color can be controlled individually. And three colors of light can reach the screen almost simultaneously, so various colors can be reproduced realistically. Although the color reproduction of DLP projectors is slightly worse, the three-color light of a single-chip DLP projector is reflected by the same micromirror to the same pixel, and there is no convergence problem, so the black area is truly black, and the edge of the pixel will not appear Some burrs and shadows in the LCD. Therefore, when showing some thin lines, DLP projectors are clearer and sharper than LCD projectors, black and white are more pure, and gray levels are richer. Of course, the biggest advantage of a single-chip DLP projector is its small size and light weight. Many products even have only 1-2 kg. Generally speaking, DLP projectors are slightly more expensive. Seeing is believing. Whether it is LCD or DLP, it is recommended to compare carefully at the time of purchase.

Trapezoidal correction

In the use of the projector, the position of the projector must be at right angles to the projection screen as far as possible to ensure the projection effect. If the verticality of the two cannot be guaranteed, the picture will be trapezoidal. If it is not on the ceiling, but on the table, it is difficult for us to guarantee "vertical". In this case, we need to use the "keystone correction function" to correct the keystone to ensure that the picture has a standard rectangle. Keystone correction usually has two methods: optical keystone correction and digital keystone correction. Optical keystone correction refers to adjusting the keystone by adjusting the physical position of the lens; another type of digital keystone correction is software to achieve keystone correction. At present, almost all projector manufacturers have adopted digital keystone correction technology, and most of the projectors using digital keystone correction support vertical keystone correction function, that is, the projector can adjust its height in the vertical direction. The resulting trapezoidal is trapezoidally corrected in the vertical direction by the projector. The picture can be made rectangular, which is convenient for users.

Many consumers are confused about the brightness parameters of the mini hd led projector when purchasing a projector. Perhaps in the eyes of laymen, evaluating the brightness of a projector can only be judged by the value. And as people gradually increase their expectations for high brightness and high resolution, many manufacturers will choose to use the concept of stealth to change the parameters in order to attract attention.

However, in fact, there is not an absolute positive relationship between the effect shown on the screen and the number of lumens marked. Not a projector with a higher lumen is better. So what exactly does a projector lumen do? Let's take a look at the mystery of lumens and learn to say no to false parameters.

Generally speaking, the lumen of a projector is divided into several units. There are only two of them in our daily life, one is the brightness of the light source, and the other is ANSI lumens.

The brightness of the light source refers to the "most original light-emitting brightness level" provided by the laser, light bulb, and LED light in the projector. In simple terms, the brightness of the light source is the brightness that has not been cut by the lens or other factors.

Another type, ANSI lumens is the international standard unit of 2500 lumens projector recognized by the world.

ANSI lumens is the brightness after layer after layer of reduction. Use the sun as a metaphor. The sun itself is the brightness of the light source, and the sunlight shining on us is the brightness that the projector projects on the wall after being cut. The brightness projected onto the wall is ANSI lumens.

According to relevant calculations, the light source brightness of 3500 is approximately equal to 1000-1200 ANSI lumens. Therefore, be sure to look for ANSI lumens when choosing a projector.

There may be consumers wondering what is the relationship between the level of lumens and the size and clarity of the picture?

As the brightness of the projector (lumens is the unit of brightness) increases, the picture projected at the same screen size will become brighter. So it looks clearer, but the resolution does not change; the increase in lumen has nothing to do with the screen size, but the brightness will change as the screen size changes. For example, the screen size is larger and the brightness is lower.

According to the size of the indoor space, in the space of 15-30 square meters, 100-800 ANSI lumens is recommended. In the space of 35-50㎡, it is recommended to be between 1500-2000 ANSI lumens. In the space of 60-100㎡, it is recommended to be between 3000-4000 ANSI lumens. In the space of 120-200 square meters, 4000 ANSI lumens or more is recommended. The two are well understood, because the lumen is proportional to the area of the house.

Although now we have entered the digital era, and e-books are gradually popular and popular, many organizations and individuals think it is necessary to convert paper materials into electronic documents for preservation.

According to media reports, Dai Nippon printing announced yesterday that it had launched the world's fastest 3D book scanner developed in collaboration with professors Masatoshi Ishikawa and Yoshihiro Watanabe of the University of Tokyo. The ocr book scanner scans up to 250 pages per minute at an amazing speed.

As we all know, the speed of general scanning products is not very fast. Among the all-in-one products we tested, the product with the fastest scanning function also takes more than 10 seconds to scan a piece of A4 paper. Then the number of pages scanned per minute is 6. Compared with this high-speed scanner, it's snail speed.

This multi page scanner is different from the traditional one. When scanning, it turns pages at high speed through a mechanical device, takes 3D pictures of pages through two powerful cameras, and uses real-time stereo image identification technology and high-speed aberration correction algorithm to realize fast and high-quality book scanning. In addition, the book scanner overcomes the disadvantage that the traditional scanner must open the book and lay it flat, without disassembling the book.

According to reports, in order to achieve the best printing state, the device has built-in software, which can scan and analyze, correct errors and synthesize two pictures. Finally, it can scan the pictures with the output pixel of 400 PPI, and convert the high-quality output results into e-books, PDF and other formats

iCODIS Megascan X9 scanner could also deliver promising results with its high-pofile performace.

Most users will pay attention to the performance of the hd mobile projector in color when they purchase the projector. When you buy a hd dlp projector, you need to pay attention to several key parameters, such as brightness, resolution and contrast. These parameters largely determine the image performance ability of the projector. However, many friends realized that although the parameters of different brands of projectors are basically the same, most of them are quite different in color performance. So what influences the color of the projector?

First, the problem of light sources. Light bulbs are used in traditional projectors. The principle of light source of bulb is to electrify the bulb filled with rare gas, which can ionize the rare gas and generate visible light by high voltage discharge. This kind of high intensity gas discharge light source is not pure. There are a lot of messy light, which affects the color of the projection picture.

The impure light from the traditional light source affects the color performance of the projector.

Now there are many monochromatic light sources on the market. The principle is to mix the blue light source (LED or laser) with the Fluorescent Pink wheel to form "white light". But the performance of this white light is not as good as that of the three primary color light source. In addition, in order to improve performance, there are also two-color light sources, such as red laser plus blue laser. The color effect is much better than monochrome light source. Generally speaking, tricolor light source is the best, but the cost of monochromatic and bicolor light source is low.

With different color wheel structures, the color effect of projection image is different

Second, the problem of color wheel. Now, six segment color wheels are mostly used in the projectors on the market. Compared with the early three segment color wheel, the image color will be better. Although different projector products all adopt six segment color wheel, the color of the remaining three segment color wheel is different except RGB three segment. For example, some projectors add white segments to RGB tricolor wheel in order to improve the brightness of projection picture. In order to present a better color effect, some projectors use rgbrgb cycle color segment. What's more, the proportion of each color segment on the color wheel of different projector products is also different, and the image color presented when using is also different.

Adjustment method of color temperature and the brightness of the light source affects the color of the projector

Third, the adjustment of the projector's later software, such as the adjustment of color temperature and color accuracy. The color temperature of the projector is generally 6500k, because such a color temperature will not make the screen have too much color trend. If it is lower than 6500k, the color of the screen will be warmer, otherwise the screen will be cooler. In fact, the brightness of a projector light source has a great impact on the later adjustment of color temperature of the projector. The higher the brightness, the larger and more flexible the adjustable range of color temperature. For example, for the projector with traditional light source, it is easy to adjust the color temperature to 6500k for a brightness of 3000 lumens; for the projector with LED light source with lower brightness, the maximum brightness is 1000 lumens. For the effect of the picture, the color temperature usually reaches 890k or even higher.

Most users will pay attention to the performance of the hd mobile projector in color when they purchase the projector. When you buy a hd dlp projector, you need to pay attention to several key parameters, such as brightness, resolution and contrast. These parameters largely determine the image performance ability of the projector. However, many friends realized that although the parameters of different brands of projectors are basically the same, most of them are quite different in color performance. So what influences the color of the projector?

First, the problem of light sources. Light bulbs are used in traditional projectors. The principle of light source of bulb is to electrify the bulb filled with rare gas, which can ionize the rare gas and generate visible light by high voltage discharge. This kind of high intensity gas discharge light source is not pure. There are a lot of messy light, which affects the color of the projection picture.

The impure light from the traditional light source affects the color performance of the projector.

Now there are many monochromatic light sources on the market. The principle is to mix the blue light source (LED or laser) with the Fluorescent Pink wheel to form "white light". But the performance of this white light is not as good as that of the three primary color light source. In addition, in order to improve performance, there are also two-color light sources, such as red laser plus blue laser. The color effect is much better than monochrome light source. Generally speaking, tricolor light source is the best, but the cost of monochromatic and bicolor light source is low.

With different color wheel structures, the color effect of projection image is different

Second, the problem of color wheel. Now, six segment color wheels are mostly used in the projectors on the market. Compared with the early three segment color wheel, the image color will be better. Although different projector products all adopt six segment color wheel, the color of the remaining three segment color wheel is different except RGB three segment. For example, some projectors add white segments to RGB tricolor wheel in order to improve the brightness of projection picture. In order to present a better color effect, some projectors use rgbrgb cycle color segment. What's more, the proportion of each color segment on the color wheel of different projector products is also different, and the image color presented when using is also different.

Adjustment method of color temperature and the brightness of the light source affects the color of the projector

Third, the adjustment of the projector's later software, such as the adjustment of color temperature and color accuracy. The color temperature of the projector is generally 6500k, because such a color temperature will not make the screen have too much color trend. If it is lower than 6500k, the color of the screen will be warmer, otherwise the screen will be cooler. In fact, the brightness of a projector light source has a great impact on the later adjustment of color temperature of the projector. The higher the brightness, the larger and more flexible the adjustable range of color temperature. For example, for the projector with traditional light source, it is easy to adjust the color temperature to 6500k for a brightness of 3000 lumens; for the projector with LED light source with lower brightness, the maximum brightness is 1000 lumens. For the effect of the picture, the color temperature usually reaches 890k or even higher.

Impressive image quality meets practical portability. Bring the big screen with you wherever you go with our Vivid 818 portable digital projector.

2,000 lumens of brightness, this portable gaming projector can display clear and bright images on a big screen.

With its 4,200mAh built-in battery, it aslo can be easily carried anywhere you need.

Whether you’re gaming, presenting or just watching a movie on-the-go, this portable digital projector will make sure you’re always ready with bright, clear displays.

Native Resolution:      WVGA Native

Support Resolution:    Maximum 1080p

Contrast Ratio:           2000:1

Throw Ratio:              1.4:1

Brightness:                 2000 Lumens

Projection Size:          20” – 120”

Keystone Correction:  Auto Keystone Correction

Ports:                          USB/HDMI/TF/Earphone

JackFan:                       < 30dB

Battery:                       4,200mAh

Physical Buttons:        Power/Volume/Mode Switch

Focus Adjustment:      Manual

Lamp Life:                   20,000 hrs

Display Technology:    0.2″ FWVGA DLP

Product Size:               17.0×10.5×2.8 cm

Features of Vivid 818 Portable DLP Smart Projector

l 4x brighter and clearer than traditional LCD projectors up to a 120-inch screen

l Connect almost any device with HDMI, USB, VGA, micro SD and audio support

l Auto keystone correction for picture-perfect rectangular displays every time

Silent.

Steady, the inner wall of the portable dlp projector Vivid 818's shall all covers with Nano material-graphene, whose heat-conducting property is ten times faster than a metallic material. With New Texas Instrument DLP technology, the Vivid 818 can performance much brighter and clearer image than typical LCD projector. The dark side details are also clearly visible via 2000:1 super contrast Besides. Furthermore, the New 0.2’’ DMD Technique light source can display brighter lightness and more delicate display effects.

Remarkable Picture of Vivid 818 Portable DLP Smart Projector

Advanced DLP technology 2000 Lumens of brightness, the Vivid 818 portable dlp projector can display clear and bright images on a big screen more easily than LCD projectors with the same parameters do (Native resolution: WXGA Native, Max input resolution: 1080p)

Thanks to the 2000 Lumens of brightness, the Vivid 818 portable film projector can display clear and bright images on a big screen more easily than LCD projectors with the same parameters do - The picture quality of the Vivid 818 digital projector is even better than a Full-HD LCD projector. Recommended for use in dimmer environments.

Plenty of Ports of Vivid 818 Portable DLP Smart Projector

HDMI, USB, and TF port ensure that you can connect the Vivid 818 portable mini hd dlp projector with most of your external devices. Whether your mobile devices or private PC, the Vivid 818 portable dlp projector does it all.

The Vivid 818 portable mini hd dlp projector comes with 1 HDMI port and 1 USB port, so that you can watch HD movies supporting 720p or 1080p, or play video games via your external device connected with the hd projector 1080p. In relatively dark environments, the full hd portable projector is very easy to achieve breathtaking visual effects. [* USB supports video, photo, music and text, not compatible with Microsoft office.]

AKC&UAP Technology in Vivid 818 Portable DLP Smart Projector

The Auto Keystone Correction and Upward Angle Projection function automatically adjust the projection screen to provide a perfect watching experience without losing any pic of picture.

The Vivid 818 dlp pico projector comes equipped with auto keystone correcting function in order to correct the defective projected images more conveniently, which is an obvious advantage to a mini projector.

HDMI, USB, and TF port ensure that you can connect the portable home video projector Vivid 818 with most of your external devices. Whether your mobile devices or private PC, the 1080p portable projector Vivid 818 does it all.

The Vivid 818 multimedia mini led projector comes with a 4,200 mAh rechargeable battery, it's very convenient to use it outdoors.Synchronous delivery of Vivid 818 Portable DLP Smart Projector:

Simultaneously launch computer screens, huge delivery size, forgot the traditional monitor to experience a more extravagant life.

Multiple Occasions of Vivid 818 Portable DLP Smart Projector

Suitable for multi-purpose placement, whether it is at home, office, school, or in your own coffee shop, Vivid 818 portable multimedia projector can play his role Impressive.

iCODIS is a national company specialized in producing hd mobile projector. We sincerely invite and welcome people from all around the world to invest and create more values together.

Our Vivid 813 Pro is a powerhouse all-around projector. It uses DLP technology for crystal-clear image quality in a powerfully portable package.

Install this portable usb projector in your home theater, office or slip it into your bag for ultimate  movie nights on the go.

The portable dlp smart usb projector itself can be  carried anywhere, watching TV series and any other media at anytime and any location.

Identical Model:            RD813(without built-in android)

Native Resolution:         720p

Support Resolution:      Maximum 1080p

Contrast Ratio:              10000:1

Throw Ratio:                  1.5:1

Brightness:                    3000 Lumens

Projection Size:              20” – 180”

Keystone Correction:     Auto Keystone Correction

Display Chip:               0.3” DMD LED Quad-Core 1.5 GHz

Ports:                           USB/HDMI/VGA/Earphone

JackFan:                      < 30dB

Battery:                        10,000mAh

Physical Buttons:         Power

Focus Adjustment:       Manual

Lamp Life:                    20,000 hrs

Display Technology:     0.3″ FWVGA DLP

Product Size:               17.5×14.5×3.1cm

Features of Vivid 813 Pro Portable DLP Projector

This tiny portable projector has got 1280 x 720 native  resolution, and 3,000 lumens, small in size, yet powerful in projection.

l 4x brighter and clearer than traditional LCD projectors

l Connect almost any device with HDMI, USB, VGA, micro SD and audio support

l Crystal-clear 720p native resolution

l Auto keystone correction for picture-perfect rectangular displays every time

Stunning Picture of Vivid 813 Pro Portable DLP Projector

Vivid 813 Pro portable digital projector adopts advanced DLP technology. 3000 lumens, 720p native resolution and 180’’ projection size, all the features together produce remarkable visual effect.

Thanks to the 3,000 Lumens of brightness & 10,000:1 contrast ratio, the mobile projector Vivid 813 Pro can display clear and bright images on a big screen more easily than LCD projectors with the same parameters do - The picture quality of the Vivid 813 Pro portable digital projector is even better than a Full-HD LCD projector.(Native resolution: 720p, Max input resolution: 1080p)

Broad Connectivity of  Vivid 813 Pro Portable DLP Projector

HDMI input, AV/VGA and USB 2.0 port support connection with your desktop, laptop, tablets, and cellphones, which enables seamlessly playing content off your devices.

The Vivid 813 Proportable multimedia projector comes with 1 HDMI port and 2 USB ports, so that you can watch HD movies supporting 720p or 1080p, or play video games via your external device connected with the hd 1080p portable projector. In relatively dark environments, the mini led pocket projector is very easy to achieve breathtaking visual effects. [* USB supports video, photo, music and text, not compatible with Microsoft office.]

The RD-813 pico projector comes equipped with auto keystone correcting function in order to correct the defective projected images more conveniently, which is an obvious advantage of a mini digital projector.

HDMI, dual USB, Vga, and DC port ensure that you can connect the 1080p portable projector RD-813 with most of your external devices. Whether your mobile devices or private PC, the best portable video projector Vivid 813 Pro does it all.

Design of a Portable Multimedia Projector

A whole cinema in your bag. With the dimension - 17.5*14.5*3.1cm, the portable home cinema projector VIVID 813 PRO is easy for transporting to a friend’s house for your next movie night, coming with a 10,000mAh rechargeable battery, it has more than 2 hours continuous video playtime.

iCODIS is a national company specialized in producing mini hd movie projector. We sincerely invite and welcome people from all around the world to invest and create more values together.

Theater-live T700 Video Projector, Native Full HD 1080P

Thanks to the 4000 Lumens of brightness & 5,000:1 contrast ratio, Theater-live T700 digital film projector can display clear and bright images on a big screen. Native resolution 1920*1080 giving a quite pretty picture quality, makes it a huge advantage contrast with other LCD projectors

Bring the movies to your home with the awesome power of the Theater Live T700 bedroom movie projector. Thanks to its Full-HD resolution, high contrast and 4000 Lumens you'll never watch movies without it.

 Amazing Full-HD Native resolution

2 HDMI ports, 2 USB ports, VGA and AV allow you to connect all your favorite devices simultaneously

From 50'' to 200'' of full on entertainment

4000 Lumens and 5,000:1 contrast will make movies pop like never before.

UHD - Brightness

Thanks to the 4000 Lumens of brightness & 5,000:1 contrast ratio, the smart home projector T700 can display clear and bright images on a big screen more easily than than a normal LCD projector - The picture quality of T700 digital projector is amazing and unimaginable. (Native resolution: 1080p)

A Practical Home Theater

The T700 home film projector comes with 2 HDMI ports and 2 USB ports, so that you can watch HD movies supporting full 1080p, or play video games via your external device connected with the hd projector 1080p. [* USB supports video, photo, music and text, not compatible with Microsoft office.]

Plenty of PortsHDMI, USB, VGA, and AV port ensure that you can connect the 1080 projector T700 with most of your external devices. Whether your mobile devices, private PC or PS4, the video projector T700 does it all.

Keystone Correction

The T700 pico projector comes equipped with manual keystone correcting function in order to correct the defective projected images more conveniently, which is an obvious advantage to a LCD projector.

Authentic Home Theater Projector

Equipped with an advanced cooling system, build-in Speaker and 50~200 inches projection size, brings excellent spectating experience just like a cinema.

± 15° Keystone Correction

Hdmi Projector T700 comes equipped with manual ± 15° keystone correcting function in order to adjust the projection screen to provide a perfect watching experience without losing any pic of picture.

Multi-media Home Projector

Theater-live T700 Professional video projector collected every plugs and functions that the customers may needed. AV, YPbPr, USB, HDMI Port, VGA Port are all included, Compatible with USB Flash Drive, Video Games, Laptop, Computer, Smartphone, which enables seamlessly playing content off your devices .

Video Games Supported

You can connect your video games easily to the hdmi projector 1080p cable with LCD display technology. You can protect your eyes well while enjoy the full screen views.

200-inch large screen

Theater-live T700 can achieve a large screen of 50-200 inches. For the best viewing experience, we recommend a projection size of 120 inches in dark and a projection distance of approximately 4 meters.

iCODIS is a national company specialized in producing mini mobile projector. We sincerely invite and welcome people from all around the world to invest and create more values together.

Theater 817 Pro is a LED Ultra Clear Video Projector

HD-Brightness

Experience home cinema like you’ve never seen it before. Our ultra-clear Theater 817 Pro projector packs a whopping 3,500 lumens of brightness and HD native resolution. The image quality of this portable 720p mini projector is so clear and bright that you’ll find yourself completely immersed in the display.

Plenty of Ports of Theater 817 Pro Portable HD Led Projector

Equipped with plenty of ports (HDMI×2, USB×2, AV, VGA) to pair it with a variety of devices, such as tablets, DVD or Blue-ray players, PlayStation, etc.

Crystal-clear 720p native HD resolution

Brighter and clearer projection up to a 180-inch screen

Connect almost any device with HDMI, USB, VGA, AV and audio support.

Native Resolution:      720p

Support Resolution:    Maximum 1080p

Contrast Ratio:            2000:1

Brightness:                  3500 Lumens

Projection Size:           50” – 180”

Keystone Correction:  15° physical correction

Ports:                      HDMI*2, USB*2, VGA, AV, Earphone Audio

JackFan:                       < 30dB

Focus Adjustment:      Manual

Lamp Life:                    50,000 hrs

Display Technology:   5.8” LCD TFT display

Product Size:               30.5×23.5×10.7 cm

Weight:              3.85 kg

Color:             Black&Silver

Powered by a LED lamp with 3,500 lumens of brightness and HD native resolution ( supports Full-HD 1080p). Theater 817 Pro portable 3500 lumens projector provides clear and bright enough images and videos for users.

The projection size is between 50 and 180 inches diagonal - It is ideal for classrooms, large auditoriums, home cinemas, and offices.

Theater 817 Pro portable cinema projector comes equipped with plently of ports (HDMI×2, USB×2, AV, VGA) to pair it with a variety of devices, such as tablets, DVD or Blue-ray players, PlayStation, etc.

This portable home projector adjusts the picture size and orientation more easily than most projectors do.

iCODIS is a national company specialized in producing mini home theater projector. We sincerely invite and welcome people from all around the world to invest and create more values together.

Theater 816 Lite is a typical LCD Video Projector

This portable cinema hdmi led projector is powered by a LED lamp with 1,500 lumens of brightness and HD native resolution ( supports Full-HD 1080p).

Theater 816 Lite bedroom movie projector takes your movie nights to the next level. This portable home cinema projector brings clear and bright display straight to your home, with full-HD 1080p support up to a 120-inch screen.

Native Resolution:       WVGA Native

Support Resolution:    Maximum 1080p

Contrast Ratio:            1500:1

Brightness:                   1200 Lumens

Projection Size:            35” – 120”

Keystone Correction:  10° physical correction

Ports:                            HDMI, USB, VGA, AV, AUDIO OUT

JackFan:                       < 30dB

Focus Adjustment:      Manual

Lamp Life:                    50,000 hrs

Display Technology:   4” LCD TFT display

Product Size:               22.5×15×8.8 cm

Weight:               1.4kg

Color:               Black

Ideal Projection Size of Theater 816 Lite Portable Theater Projector

The projection size is between 35 and 110 inches diagonal – This portable film projector is ideal for classrooms, large auditoriums, home cinemas, and offices.

Features of Theater 816 Lite Portable Theater Projector

Brighter and clearer projection up to a 120-inch screen

Connect almost any device with HDMI, USB, VGA, micro SD and audio support

iCODIS is a national company specialized in producing hd mobile projector. We sincerely invite and welcome people from all around the world to invest and create more values together.

Theater 804 Full HD Home Projector

HD- Brightness

The led home cinema projector Theater 804 is powered by a LED lamp with 2500 lumens of brightness and HD native resolution ( supports Full-HD 1080p).

Native Resolution:      1200*800

Support Resolution:    Maximum 1080p

Contrast Ratio:            1300:1

Brightness:                   2500 Lumens

Projection Size:            50” – 200”

Keystone Correction:  15° physical correction

Ports:  HDMI*2, USB*2, VGA, AV, YPbPr , ATV,Earphone Audio

JackFan:                       < 30dB

Focus Adjustment:      Manual

Lamp Life:                    50,000 hrs

Display Technology:   5.8” LCD TFT display

Product Size:               33.6×26.3×11.8 cm

Weight:                         4.0kg

Color:                           White

Immerse yourself in the crisp, bright display from our ultra-clear and low price projector for home use. With 2500 lumens of brightness and HD native resolution to elevate your home cinema.

Plenty of Ports of Theater 804 Smart Home Projector

HDMI×2, USB×2, AV, VGA, YPbPr, ATV, pair it with a variety of devices, such as tablets, DVD or Blue-ray players, PlayStation, etc.

Features of Theater 804 Smart Home Projector

Crystal-clear 720p native HD resolution

Brighter and clearer projection up to a 200-inch screen

Connect almost any device with HDMI, USB, VGA, AV and audio support.

Are you looking for native 720p projector online? Our Theater 804 is an affordable home projector for you. With this full hd projector for home theater, you can truly enjoy your night in your bedroom.

iCODIS is a national company specialized in producing mini hd movie projector. We sincerely invite and welcome people from all around the world to invest and create more values together.