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Browse by Category: Main > Optical & Optics
Class Information
Number: 353/36
Name: Optics: image projectors > Composite projected image > Letters or numbers
Description: Subject matter wherein a plurality of numbers or letters are individually projected adjacent each other on a viewing screen to form a meaningful image or where indicia is projected adjacent or upon a scene on the viewing screen, usually for the purpose of advertising.


Patents under this class:

Patent Number Title Of Patent Date Issued
7290885 User-interface for projection devices Nov. 6, 2007
5535061 Rotary scanner Jul. 9, 1996
4448504 Rear end projection system employing aspherical lenses May. 15, 1984
4420234 Combination text and picture display system Dec. 13, 1983
3953117 Single image plane two color photochromic display technique Apr. 27, 1976



 
 
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