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:
May. 30, 2000
Filed:
Jan. 30, 1997
Applicant:
Inventor:
Arlynn W Smith, Blue Ridge, VA (US);
Assignee:
ITT Industries, Inc., White Plains, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01J / ; H01L / ;
U.S. Cl.
CPC ...
313541 ; 313542 ; 313523 ; 2502 / ; 257 11 ;
Abstract
A photocathode device for use in an image intensifier of a night vision device, the device having a faceplate fabricated from an optically transparent material and a photoemissive semiconductor wafer bonded to the faceplate. The photoemissive wafer includes a first contact disposed on a peripheral surface thereof for electrically contacting the wafer and an annular-shaped second contact disposed on the emission surface of the wafer for enabing a potential difference to be applied across the wafer to facilitate the emission of photogenerated carriers from the emission surface.