Method and system for protecting optoelectronic search and tracking equipment from an illumination
US6194723A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 2, 1991 |
| Grant date | Feb 27, 2001 |
| Priority date | — |
| Expiry date | Jul 2, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S7/4804
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method of protection and a protective system for protection of an optoelectronic equipment consists in exploiting in a processing unit the data from said equipment and from a laser warning receiver disposed on a common support, in order to detect the time when the impact of a laser illumination enters the field of view of said optoelectronic equipment, estimating the time of coincidence of said impact with the projection of the photosensitive sensor of said optoelectronic equipment in said field of view, and occulting said sensor for a duration at least equal to the dwell time of said laser impact in front of said projection of the sensor. The invention also relates to a protective system fitted with a shutter for implementing said method. Application: Protection of any equipment capable of producing a "cats eye" effect in the presence of at least one illumination in relative motion of fixed with respect to said equipment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.