Key technologies, main indicators and advantages of high-definition conference camera

The first is of course the photosensitive element CCD/CMOS, the second is the lens, and the third is that the image processor chip is equivalent to the "brain" of the camera, or the CPU representing the computing power of the camera. These three are the most important components that affect the shooting quality of the camera. According to the size of CCD target surface, CCD chips have developed various sizes: most of the chips used at present are 1/3 "and 1/4". When choosing a camera, especially when the camera angle is strictly required, the size of the CCD target surface and the cooperation between CCD and lens will directly affect the size of the field of view angle and the clarity of the image. 1 inch-The target size is12.7mm * 9.6mm high,16mm diagonal. 2/3 inch-the target size is 8.8 mm * width * 6.6 mm height, and the diagonal is 1 1/2 inch-the target size is 6.4 mm * width * 4.8 mm height, and the diagonal is 8 mm. 1/3 inch-The target size is 4.8 mm * width * 3.6 mm height, and the diagonal is 6 mm.. 1/4 inch-The target size is 3.2 mm * width * 2.4 mm height and 4 mm diagonal. 1, lens parameters The optical characteristics of a lens include imaging size, focal length, relative aperture, field of view and other parameters, which are generally indicated in the manual attached to the lens. The following are introduced separately. A, imaging lens size can be generally divided into 25.4mm (forest), 16.9mm(2/3 inches),12.7 mm (12 inches), 8.47 mm (13 inches), 6.35 mm (. Table 2- 1 lists the target sizes of several common CCD chips, and the units in the table are millimeters.