Welcome to this Security Expo. As one of the exhibitors, ADL will provide you with the most professional exhibition services and the highest quality exhibits. equipment, network security and other public security products.Welcome to this

You are welcome to visit the Expo, ADL is one of the exhibitors, and we will present the latest and hottest products and technologies at this exhibition. CIOE China Optical Expo is a comprehensive exhibition of the optoelectronic industry

The English name of optical zoom is OpticalZoom, and digital video cameras rely on the structure of optical lenses to achieve zooming. Optical lens is an essential part of machine vision system, which directly affects the quality of imaging, and affects the realization and effect of algorithms.....

The aperture of the lens is mainly used to adjust the size of the aperture or opening of the lens, so as to control the amount of light entering the lens, so that the image can be correctly exposed. In this way, the image will not be too bright in a well-lit scene, and at the same time, the image will not be too dark in a dark environment. On the other hand, the size of the aperture will also affect the depth of field of the image. The smaller the aperture, the longer the depth of field. The larger the aperture, the shorter the depth of field. Long depth of field is particularly important in some surveillance scenarios, such as narrow passages or parking lots. Conventional lens aperture control methods are mainly fixed aperture, manual aperture, automatic aperture and electric aperture....

Back Focus Adjustment/Back Focus Adjustment Back Focus Adjustment means adjusting the flange distance (the distance from the lens interface surface to the imaging chip) to 17.526mm, which is the standard C-mount...