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. 01, 1984
Filed:
Jul. 01, 1981
Mark N Gurnee, Framingham, MA (US);
Honeywell Inc., Minneapolis, MN (US);
Abstract
A shield for limiting the radiation received by electromagnetic energy radiation detectors to the radiation provided to the detectors by the optics of an electromagnetic energy detection system. The shield comprises a member transparent to a predetermined spectrum of radiation. An opaque thin film is deposited on a surface of the member, the thin film having apertures defined therein, the detectors viewing the optics through the member and the apertures. The thin film shields the detectors from electromagnetic radiation generated outside the field of view of the optics, thereby improving the sensitivity of the detection system. Virtually any desired thickness for the member may be used, thus allowing very close placement of the shield to the detectors and permitting use of very high density arrays.