Analog high resolution laser irradiation detector (HARLID)
US5604695A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 5, 1995 |
| Grant date | Feb 18, 1997 |
| Priority date | — |
| Expiry date | Jun 5, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S7/4804
- WIPO fieldMeasurement
- WIPO sectorInstruments
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 locat…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.