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:
Oct. 05, 1976
Filed:
Jun. 30, 1975
See L Chin, Quebec, CA;
Kenneth A Mace, Kitchener, Ontario, CA;
Other;
Abstract
This invention provides an optical fan system for projecting a planar fan of light against a surface. A source of collimated light is passed into an edge face bridging between two cylindrical concentric reflective surfaces defining outer surfaces of a translucent or transparent body. The light refracts through the edge face, and then is multiply reflected and refracted between the concentric cylindrical surfaces, with total reflection occurring at the internal surface and partial refraction occurring at the outer surface. Suitable silvering or other reflective material is applied to the surfaces in order to accomplish the desired degree of reflectivity.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile