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. 08, 2000
Filed:
Dec. 18, 1991
Applicant:
Inventor:
Paul R Norton, Santa Barbara, CA (US);
Assignee:
Raytheon Company, Lexington, MA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H01J / ; H01L / ;
U.S. Cl.
CPC ...
2503384 ; 250332 ;
Abstract
Absorption coatings utilized in a detector array reduces the optical signature of an infrared detector or detector array by reducing the undesirable reflections from exposed metal surfaces and non-planar surface features within the photodetector array. The application of an absorption coating, consisting of a single layer black coating, a multi-layer dark coating, a moth-eye surface structure, or a combination of these, reduces the undesired reflected radiation for a relevant spectral range. Accordingly, the optical signature of the detector array is reduced and the problems of optical cross-talk and ghost images are eliminated.