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:
Apr. 17, 2001
Filed:
Dec. 30, 1998
Applicant:
Inventors:
Brian D. Cull, Glendale, AZ (US);
Elias S. Haim, Glendale, AZ (US);
Assignee:
Honeywell International Inc., Morristown, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J 6/130 ;
U.S. Cl.
CPC ...
H01J 6/130 ;
Abstract
A flat fluorescent lamp exhibits increased brightness through selective angular tuning of emitted light. A diffuse channel is formed in a substrate such that the upper portions of the channel walls taper inward toward the diffuse channel cavity to cause light to be emitted from the lamp in a more intense cone of viewable light over a narrow range of viewable angles. The interior of the channel may be at least partially covered by additional materials, such as a reflective material for enhancing brightness.