Article by hi joiney
In recent years, new low-price MOS image sensor with a far more rapid development of MOS image sensor based surveillance cameras have begun to be applied to the image good quality of the video phone or do not ask Meeting Television program. Surveillance camera is to acquire images of the front-end equipment to monitor the scene, which to area array CCD image sensor as the core components, plus the synchronization signal generation circuit, video signal processing circuit and Power supply And so on.
Surveillance camera technology base Surveillance cameras have divided black and white and color, as black and white surveillance cameras with high resolution, illumination, and so on, particularly it can under infrared light imaging, and therefore television Monitoring Program In black and white CCD surveillance cameras still have a greater marketplace share.
Surveillance camera is basic to use, usually as long as the right installation Shot, Connecting the signal cable, power supply can be connected to function. Nonetheless, in actual use, if not effectively installed and adjusted the camera lens and lens status, then the impact might not reach the intended use. Camera and surveillance cameras really should be noted that the interface is C-type interface, or a CS-kind interface (this point to bear in mind, or with C-kind lens surveillance camera directly to the CS interface to a contemporary spin on the most likely damage the CCD chip, surveillance cameras).
Install the lens, very first remove the surveillance camera and lens cover, and gently rotating the lens into the surveillance cameras in place and make the lens interfaces. For the auto iris lens, the lens of the control line ought to be connected to the camera’s automatic iris control interface for electric two-variable lens or three variable lens, the lens in location as lengthy as the rotation for the time being does not will need calibration of their balance (only in coke together until soon after the require to adjust the final correction of their balance). Adjust the lens aperture and focus
, close surveillance camera Electronic Shutter and backlight compensation switch, will want to monitor the surveillance cameras aimed scene, adjusting the lens aperture and focusing ring, so that Monitors The image the greatest. If the light intensity changes in the bigger occasion to use surveillance cameras, the greatest matching auto iris lens for surveillance cameras and electronic shutter switch to OFF. If the aperture ought to be selected manually control the camera’s electronic shutter switch to ON, and the most bright spot in the application of ( Environment The maximum light intensity), the significant lens aperture open as achievable and still make the image as the very best (not the image is too white and overloading), the lens is regulated. Bottles and can support the shield and Shang Hao
In the above adjustment procedure, if not pay attention to the bright light as probable when the lens aperture to open big, but the relations were comparatively tiny, the surveillance cameras automatically adjust the electronic shutter speed, so can still watch device to form a better image but when the light dimmed, due to the fact the lens aperture is small, the electronic shutter has also been at the slowest (1/50s), and then monitor the camera image may possibly be a dark 1.
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