FA lens

Nov 21, 2022

The basic function of the lens is to realize beam transformation (modulation). In the machine vision system, the main function of the lens is to image the target on the photosensitive surface of the image sensor. The quality of the lens directly affects the overall performance of the machine vision system. Proper selection and installation of the lens is an important part of the machine vision system design.

When selecting the lens, it is necessary to select the lens that matches the size of the camera interface and CCD. The interface mode of lens C and CS is dominant. Small CS interface cameras for security are widely used, while most of the FA industry is a combination of C interface cameras and lenses. For the corresponding CCD size, 2/3 inch to 1/3 inch products are generally used in the market according to the purpose.

Focal length is the distance from the main point to the imaging surface. This value determines the range of photography. The value is small, the imaging surface is close to the main point, and it is a short focus lens. In this case, the painting angle is wide angle, which can shoot a wide range of scenes. On the contrary, when the distance from the main point to the imaging surface is far, it is a long focal length lens, and the drawing angle becomes narrow (telescopic).

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