Study On Testing Of Visible Light Transmittance Capability Of Optical System

The Optical capability of visible light transmittance is studied on this paper. The Transmittance responded the loss situation in light energy crossing optical system. The system is based on the principle of cross-correlation detection, and measure the transmittance of visible light Optical system though the way of dual-channels, and photo electricity examination technology to carry on the visible light transmittance test. Compare to the previous way, eliminate the background error in measuring many times, and restrainthe 1/f noise signal more effectively. in addition, the whole system can work on theconditions of light field. Meanwhile, test the double channel signals at the same, thus, its convenience and high-precision. And monitoring and dealing with the result in real-time. The testing accuracy reaches 1%.The present paper has studied the overall structure mentioned above; and narrate the Principle of each sub-divided system; Design the lighting system, and make the improvement to the light chopper, eliminates measuring error; through to adjusted the light filter, the solar battery and the optical fiber selects and matches various subsystems reasonably to construct the whole test system. And make the theory basic for the following research.