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:
Dec. 25, 2007
Filed:
Dec. 26, 2006
Applicant:
Robert P. Helstern, Irvine, CA (US);
Inventor:
Robert P. Helstern, Irvine, CA (US);
Assignee:
Eaton Corporation, Cleveland, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J 3/14 (2006.01); G02B 1/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method is provided for suppressing a predetermined portion of an optical spectrum emanating from a light emitter. The optical spectrum illuminates an illumination area. The method includes the steps of fabricating a filter having a spectrophotometric transmittance and varying the spectrophotometric transmittance of the filter. The filter is positioned between the light emitter and the illumination area, such that the filter absorbs the predetermined portion of the optical spectrum.