projecticodis

After the projector lens is used for a period of time, stubborn dust will adhere to the surface, resulting in reduced light efficiency and degraded image quality. How to clean the projector lens is different from cleaning the camera lens. The projector lens has a large caliber, and since most people do not cover the lens lid, it is more complicated to clean the projector lens because it is exposed to air for a long time and dust adheres more seriously.

Clean th...

Good preparation

Before using the scanner, it is necessary for average users to have a preliminary understanding of the basic principles of the scanner, which will greatly contribute to the correct and reasonable use of the scanner. The scanner acquires the image by irradiating the light onto the picture or document to be scanned. After the light is reflected, it is received by the photosensitive element -- CCD (Charge Coupled Device) or CIS(Contact Image Sensor). Due to the different c...

Suitable resolution

When using the , many users often wonder what resolution to scan with. In fact, it depends on the actual application needs of users. Higher resolution means more image details, clearer effect and more perfect color restoring power can be obtained, but at the same time it also means that the scanned image file is enlarged and difficult to process. For the Internet with more applications, the resolution of pictures on websites is usually about 75dpi, which means that ...

The main advantage of the projection display is to create large-size images which bring shocking visual effects. Image quality is one of the most important cores of projectors. With the progress of core technology and the development of production technology, the image quality of projectors has been continuously improved.

Core parameters determine the basis of image quality

The key parameters and unique technology are the decisive factors of projector ima...

We often see “trapezoid correction” when we buy smart projector, so what exactly does trapezoid correction mean?

What is trapezoidal correction?

Trapezoidal distortion occurs when the projector is not vertically aligned with the screen or when the projection screen has an inclined surface.

Early projectors did not have trapezoid correction. Projector is usually in ...

Choosing an appropriate smart book scannershould 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. I...

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 m...

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

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 determi...

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...