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:
Feb. 15, 1983
Filed:
Jul. 11, 1980
Applicant:
Inventor:
Jonathan R Howorth, Maldon, GB;
Assignee:
English Electric Valve Company Limited, Chelmsford, GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01J / ;
U.S. Cl.
CPC ...
2502 / ; 313 94 ;
Abstract
An image intensifier device is provided with color filters on its input and output surfaces so as to intensify a color image without losing the color content. Each filter consists of an array of red, green and blue elements and these elements are precisely aligned in both input and output filters to avoid degradation of the color content. A method of producing the output filter in situ is described to provide the required accuracy of alignment.