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:
Jan. 11, 2000
Filed:
Nov. 13, 1997
Applicant:
Inventors:
Assignee:
Primary Examiner:
Int. Cl.
CPC ...
G01J / ;
U.S. Cl.
CPC ...
250226 ; 2502141 ; 359248 ; 372 45 ;
Abstract
A multispectral resonant-cavity detector is formed of at least one cavity (2) resonating at not less than two wavelengths and containing at least two layers (12, 14) that absorb the corresponding radiation and are placed at antinodes specific to stationary waves in the cavity, the cavity having at least two P-N junctions at whose space charge zones the layers are disposed. For each cavity, there are at least two electrical contacts to polarize the two junctions inversely to each other to detect the corresponding radiation.