The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 03, 1976
Filed:
Sep. 17, 1973
Robert M Gelber, Healdsburg, CA (US);
Optical Coating Laboratory, Inc., Santa Rosa, CA (US);
Abstract
Display device which changes colors which has first and second spaced members with the first member being formed of an insulating material and being capable of transmitting light. Means is disposed between the first and second members for diffusing light. Means is carried by the second member which is capable of reflecting light. Means is provided on the first member which is capable of transmitting a certain spectral region of the light beam and for reflecting another spectral region of the light beam so that when the light beam passes through the means disposed between the first and second members and certain of the light is diffused, a color is imparted to the eye of the viewer.