ccd彩色摄象机的主要技术指标（Main technical specifications of CCD color camera）.docVIP

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ccd彩色摄象机的主要技术指标（Main technical specifications of CCD color camera）.doc

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ccd彩色摄象机的主要技术指标（Main technical specifications of CCD color camera）

ccd彩色摄象机的主要技术指标（Main technical specifications of CCD color camera） Main technical specifications of CCD color camera 1. CCD size, that is, the camera target surface. Most of the original 1/2 inch, now 1/3 inches have been popularized, 1/4 inches and 1/5 inches have been commercialized. 2. CCD pixels is the main performance index of CCD, it determines the clarity of the display image, the higher the resolution, the better the performance of the image details. CCD consists of a surface array of light-sensitive elements, each of which is called a pixel, and the more pixels, the clearer the image. Now most of the market for 250 thousand and 380 thousand pixels for demarcation, more than 380 thousand pixels for high-definition cameras. 3. horizontal resolution. The typical resolution of color cameras is between 320 and 500 TV lines. There are 330 lines, 380 lines, 420 lines, 460 lines, 500 lines and so on. The resolution is represented by a television line (referred to as line TV LINES), and the resolution of the color camera is between the 330~500 lines. The resolution is directly related to the CCD and lens, and is directly related to the frequency bandwidth of the camera circuit channel. The usual rule is that the band width of the 1MHz is equivalent to the line of articulation of 80. The wider the band, the clearer the image, and the greater the line value. 4. minimum illumination, also referred to as sensitivity. Its CCDs sensitivity to ambient light, or the darkest light required for CCDs normal imaging. The unit of illumination is lux (LUX), the smaller the value, expressed the need for less light, the camera is also more sensitive. High sensitivity cameras, such as moonlight and starlight, operate in very dark conditions, 1~3lux belongs to general illuminance Moonlight type: normal work requires about 0.1LUX of illumination Starlight type: normal work requires illumination below 0.01LUX The infrared lamp lighting, without light conditions can also image (black an