For many users, the larger the size of the sensor, the higher the light transmittance, and the clearer the imaging effect under such hazy weather. However, this is not the case. For the current general fog camera, the large-size 1/2 CCD and the small-size 1/3 CCD do not differ from each other. Generally speaking, if the user does not deliberately avoid using the infrared illumination system at night, then the large-size CCD has no advantage from the cost considerations. In terms of night vision performance, the large-size fogging system without the infrared illumination system is far inferior to the infrared one. A small-sized imaging system for lighting systems. It must also be noted that, with the same focal length lens, using 1/3-inch image sensors to effectively monitor the distance far exceeds the effective monitoring distance of the 1/2 image sensor, which is necessary for the fog system that must monitor a wide range of Important.
Therefore, for ordinary users, choosing a reasonable device configuration is far more important than simply pursuing large-scale sensors.
What lens does fog monitoring use?
In the configuration of the fog monitoring camera, there may be a lot of users recommend that the application of video lens is better. So, is this statement correct?
In fact, there are generally two potentiometers on the video drive lens to adjust the average and peak value of the image respectively. In this way, when the brightness of the screen is not uniform and the contrast is large, an appropriate threshold can be achieved according to the user's setting. The ordinary DC drive lens does not have this circuit, naturally in this case will be overexposed or too dark, and sometimes there will be unstable breathing phenomenon, the image flickering. Especially in the field of road monitoring, this situation is more common. So, video footage is an indispensable configuration item for fog cameras.
In short, if the fog-mist camera is configured more rationally, the scene cannot be seen without special weather. However, if you face the general non-transparent camera, although it may be difficult to achieve the ability of the fog camera, but it is not necessarily help the water mist environment, only a few small improvements, also has a more ideal harvest.
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