Insight

We often see “trapezoid correction” when we buy projectors, 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...

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,...

Suitable resolution When using the scanner, 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...

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...

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....

Working Principle of Scanner: Currently, the working principle of desktop scanner is divided into two types: CCD and CIS. CIS products work like fax machines. They have no lens components, and use light emitting diodes as light sources and diode...

Scanners can convert written materials or physical objects such as pictures, photos, films, and manuscripts that want to be saved into pictures or PDF format and input them into computers. They are important equipment for paperless work. So how to...