Location
Salt Lake Community College
Start Date
5-5-2003 2:15 PM
Description
Testing the optical properties of complementary metal oxide (CMOS) imagers requires a light source. The light source must produce stable uniform light with calibrated wavelength and intensity. Available commercial light source units are costly and often unalterable to a custom test setup. The proposed light source is designed to be affordable and adaptable while maintaining the necessary optical quality. The design consists of an array of light emitting diodes (LED), an infrared (IR) cut-off filter, and holographic diffusers-all of which are encased in an anodized aluminum housing. Initial experimental results have shown that the light source has lasting stability and a light uniformity above 90 percent. Applications for this light source include the experimentation and testing of imagers, photo cells, and other optoelectronic devices.
A Light Source for Testing CMOS Imagers
Salt Lake Community College
Testing the optical properties of complementary metal oxide (CMOS) imagers requires a light source. The light source must produce stable uniform light with calibrated wavelength and intensity. Available commercial light source units are costly and often unalterable to a custom test setup. The proposed light source is designed to be affordable and adaptable while maintaining the necessary optical quality. The design consists of an array of light emitting diodes (LED), an infrared (IR) cut-off filter, and holographic diffusers-all of which are encased in an anodized aluminum housing. Initial experimental results have shown that the light source has lasting stability and a light uniformity above 90 percent. Applications for this light source include the experimentation and testing of imagers, photo cells, and other optoelectronic devices.