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.

Date of Patent:
Oct. 03, 1978

Filed:

Feb. 28, 1977
Applicant:
Inventor:

Thomas W Dey, Rochester, NY (US);

Assignee:

Bausch & Lomb Incorporated, Rochester, NY (US);

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F21V / ; F21V / ; G02B / ; G03B / ;
U.S. Cl.
CPC ...
362297 ; 362327 ; 350299 ; 353 64 ;
Abstract

A compact light condensing illumination system for the concentration of light at an area provides a light source capable of having a relatively shallow reflector with a relatively small aperture directing collimated light toward a planar reflector of rectangular configuration having a mirrored surface configured with relatively short grooves extending at an angle to the direction of the collimated light to uniformly reflect the light toward a planar grooved mirror disposed substantially at a right angle to the first mirrored surface and of relatively large surface to reflect the light in substantially parallel rays to a Fresnel lens of relatively low power for condensing of the light rays to concentrate the light at a preselected distance from the Fresnel lens.


Find Patent Forward Citations

Dey, Thomas. (1978). Light condensing illuminator (U.S. Patent No. 4118761). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4118761

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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