The relationship between IRE and LUX illumination

Illumination reflects the sensitivity of the CCD to ambient light, which is an indicator of the available images seen by the surveillance camera under different lighting conditions. The unit of illumination is lux (LUX). The smaller the value, the greater the need for The less light there is, the sensitivity of the surveillance camera is expressed by the lowest illumination, and IRE is the standard for the camera signal level. Usually, the maximum amplitude of the video output of a CCD camera is generally set at 100IRE or 700 millivolts. Take Digital China AMPON's D235 as an example. , one of the test environments is that its minimum illumination value is 0.06Lux at 30IRE, and its minimum illumination value is 0.005Lux at 15IRE. It can be seen that the two are proportional when other conditions remain unchanged