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. 29, 2002
Filed:
Dec. 30, 1999
Applicant:
Inventor:
Brent Marsh, San Francisco, CA (US);
Assignee:
BJI Energy Solutions LLC, New York, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B64D 4/706 ; F21V 5/00 ; G09F 1/318 ;
U.S. Cl.
CPC ...
B64D 4/706 ; F21V 5/00 ; G09F 1/318 ;
Abstract
An optical module for edge lit display signs utilizes energy efficient miniature cold cathode fluorescent lamps. Lampholders that mechanically and electrically couple the lamps include resilient sockets and clamps shaped to engage the outer surface of the resilient sockets. A preferred optical module intended as an illumination source for edge-lit emergency exit signs has two spaced apart cold cathode fluorescent lamps and an optical reflector configured to increase the light coupled to display surfaces of the edge-lit sign.