G - Physics – 03 – G
Patent
G - Physics
03
G
G03G 15/01 (2006.01) B41J 2/465 (2006.01) B41J 2/47 (2006.01) G02B 1/10 (2006.01) H04J 14/02 (2006.01) H04N 1/50 (2006.01)
Patent
CA 2126588
The present invention is a thin film coating that may be applied to various optical elements and a method for controlling the size of the imaging spot from multiwavelength sources in an optical path. A selective optical element made in accordance with the principles of the present invention comprises an optical surface. Upon the surface, thin film coatings are deposited that define zones of transmission, each zone transmits a desired wavelength band. Beyond this zone, the surface is effectively opaque to a specified wavelength band. The zones for each wavelength are individually calculated to give an effective aperture for each wavelength such that the spot size for all wavelengths meet user specifications.
Sim & Mcburney
Xerox Corporation
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