Inventors:
Thomas Richard Field - Seattle WA, US
International Classification:
G01J 3/18
Abstract:
A system for a fix-positioned camera with an internal diffraction grating for classroom and retail applications that is simple to use and inexpensive, as described in this disclosure. The fix-positioned camera system with an internal diffraction grating having a front cover, a rear cover connected to the front cover, a first glass pressure plate affixed to the front cover, a transmission diffraction grating affixed to the first glass pressure plate, a second glass pressure plate affixed to the transmission diffraction grating, a compression O-ring attached to the second glass pressure plate, and a retention block connected to the compression O-ring.