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. 18, 1997
Filed:
Jun. 05, 1995
Abstract
An opto-electronic device for detecting a beam of radiation and determining the angle-of-arrival of that beam with a high degree of angular resolution. The device has a linear array of radiation detectors arranged in a plane with a shadow mask located at a predetermined height h above and parallel to that plane wherein the shadow mask has a plurality of transparent apertures separated by opaque areas. Each radiation detector in the array comprises at least one pair of individual detector elements and apertures of the shadow mask, which apertures have the same width as the detector elements, are centred directly above the area between adjacent detector elements. Signals generated by corresponding detector elements in each radiation detector are supplied, in parallel, to one channel providing a number of output channels which correspond to the number of individual detector elements in each radiation detector. The angle-of-arrival of a radiation beam emitted by a source and traversing the apertures can then be determined by output signals from the channels. This radiation beam detecting device is particularly designed for use in Laser Warning Receivers which detect, identify and locate laser sources associated with laser guided weapons.