Divided by imaging color
Color camera: suitable for scene detail identification, such as identification of clothing or color of the scene.
Black-and-white cameras: For poorly lit areas and areas where lighting cannot be installed at night, black-and-white cameras can be used when only monitoring the location or movement of the scene.
Divided by resolution/sensitivity
Image pixels below 380,000 for the general type, especially 250,000 pixels (512 * 492), the resolution of 400 lines of the most common products. Image pixels in more than 380,000 high-resolution type
Divided by the scanning system?PAL, NTSC
China uses interlaced scanning (PAL) system (black and white for the CCIR), the standard is 625 lines, 50 fields, only medical or other professional fields to use some non-standard system. In addition, Japan for NTSC, 525 lines, 60 fields (black and white for EIA)
By CCD target size
CCD chips have been developed in a variety of sizes: most of the chips currently used for 1/3 "and 1/4". In the purchase of the camera, especially on the camera angle has more stringent requirements, the size of the CCD target surface, CCD and lens with the situation will directly affect the size of the field of view and the clarity of the image.
1 inch - target surface size of 12.7mm wide * 9.6mm high, 16mm diagonal.
?2/3 inch - target surface size of 8.8mm wide * 6.6mm high, 11mm diagonal.
?1/2 inch - target surface size of 6.4mm wide * 4.8mm high, 8mm diagonal.
? ?1/3 inch - target surface size of 4.8mm wide * 3.6mm high, diagonal 6mm.
?1/4 inch - target surface size of 3.2mm wide * 2.4mm high, diagonal 4mm.
In accordance with the degree of division, the CCD is further divided into:
Normal type? Illumination required for normal operation 1 ~ 3LUX
Moonlight type? Normal work requires illumination of about 0.1LUX
Starlight type? The illumination required for normal operation is below 0.01LUX
Infrared type? Adopt infrared lamp illumination, in the absence of light can also be imaged
By appearance:
There are gun-type, machine plate type, pinhole type, hemisphere type, bullet type, flying saucer type, coin type, lamp type