The spectral character circuit of light filter

Published:2011/6/10 21:26:00 Author:qqtang | Keyword: spectral character | From:SeekIC

The sensor consists of the shell, light filter, heat electric element PZT, FET pipe, resistor and diode,etc. The light filter is installed at the window, which forms a infrared window. The light filter is a multi-film interference filter of 6μm, this filter has a high reflection ratio on sunlight and daylight lamp light that the short wave is under 5μm, but it has a high penetration on the infrared ray source(10μm) which is emitted by human bodies and higher than 6μm, the spectral characters are as shown in figure 26-62.



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