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:
Nov. 30, 1999
Filed:
Feb. 12, 1997
Applicant:
Inventors:
Graham M Forsdyke, Leicestershire, GB;
Stuart A Mucklejohn, Leicestershire, GB;
Assignee:
General Electric Company, Schenectady, NY (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01J / ; H01J / ; B60Q / ; B60Q / ;
U.S. Cl.
CPC ...
313635 ; 313112 ; 313493 ; 313573 ; 313634 ; 313635 ; 362 61 ; 362318 ; 359265 ;
Abstract
The envelope (6) of a light source is at least partly coated with electrochromic material (20), sandwiched between two conductive layers (21,22). A voltage applied to the electrochromic material by way of the conductive layers varies the intensity and/or color of the light from the source.