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:
Jul. 23, 2002
Filed:
Jul. 20, 1999
Applicant:
Inventor:
George Samuel Levy, San Diego, CA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02F 1/01 ; G02F 1/03 ; G02B 2/600 ;
U.S. Cl.
CPC ...
G02F 1/01 ; G02F 1/03 ; G02B 2/600 ;
Abstract
An antiglare optical device for selectively attenuating bright light sources in an object field. This device comprises at the object end, the optics necessary for focusing incoming rays onto a focal plane, at the eyepiece end, the optics necessary to view the image of the object field, and at the focal plane, a photochromic layer for moderating rays originating from intense objects in the object field. A sharp focusing of the object field on the photochromic layer is achieved by means of asymmetrical optical components such as polarizing beam splitter and half lenses.