Application of ccd lens

1. Application of CCD lens in exhibition platform

CCD lens is widely used in educational products and teaching equipment, such as video exhibition platform for class, portable video exhibition platform and video display instrument, which greatly facilitates teaching work, and students can attend classes on the screen through projector projection.

At present, there are many brands about video display stand, such as Samsung, BenQ, Sanyo, Honghe, Hi-Tech and so on. With the mobility and flexibility of teaching, the portable video display instrument developed by Tengya Company has also been greatly welcomed.

2. Application of CCD lens in photography

The column of CCD in the specification table of digital cameras often says "1/2.7 inch CCD" and so on. The "1/2.7 inch" here is the size of CCD, which is actually the diagonal length of CCD.

the existing digital cameras generally use 1/2.7 inch, 1/2.5 inch and 1/1.8 inch CCD. CCD is a collection of light-receiving elements (pixels), which receives the light passing through the lens and converts it into electrical signals.

in the case of the same number of pixels, the larger the CCD size, the larger the unit pixel. In this way, the unit pixel can collect more light, so it can be said that it is beneficial to improve the image quality in theory.

however, the quality of digital camera image is not only determined by CCD. The performance of the lens and the circuit that forms an image through the electric signal output by CCD can also affect the image quality of the camera.

the so-called "large CCD= high image quality" is incorrect. For example, although 1/2.7 inch is smaller than 1/1.8 inch, a digital camera equipped with 1/2.7 inch CCD has not been criticized for its poor image quality.

nowadays, pocket digital cameras are becoming smaller and lighter. for design reasons, most of them use small 1/2.7-inch CCD.

by the way, the 1/2.7-inch "type" is sometimes written as "inch", but it is not an ordinary "1 inch =25.4mm" here. Because of the combination of the camera tube and display mode used on the camera before the CCD appeared, it is customary to use a special size. 1/2.7 inch is 6.6mm, and 1/1.8 inch is about 9 mm.