Arrangement for locating radiating sources

Patent 4315690 Issued on February 16, 1982. Estimated Expiration Date:

February 22, 2000. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Abstract Claims Description Full Text

Patent References

3205361

3263088

3558230

3751169

3790276

Direction-sensing virtual aperture radiation detector
Patent #: 3951550
Issued on: 04/20/1976
Inventor: Slick

Optical sensors
Patent #: 4092072
Issued on: 05/30/1978
Inventor: Ellis

Arrangement for locating radiaring sources
Patent #: 4193689
Issued on: 03/18/1980
Inventor: Reymond , et al.

System for monitoring the movements of one or more point sources of luminous radiation Patent #: 4209254
Issued on: 06/24/1980
Inventor: Reymond , et al.

Inventors

Assignee

Thomson-CSF

Application

No. 06/123816 filed on 02/22/1980

US Classes:

356/139.03, Relative attitude indication along 3 axes with photodetection250/203.3, Self-luminous target356/141.5With at least 2-dimensional sensitivity

Examiners

Primary: Buczinski, S. C.

Attorney, Agent or Firm

Cushman, Darby & Cushman

International Classes

G01S 5/16 (20060101)
G01S 3/78 (20060101)
G01S 3/784 (20060101)
G01S 5/00 (20060101)
F41G 3/22 (20060101)
F41G 3/00 (20060101)

Foreign Application Priority Data

1979-02-27 FR

Abstract

A radiation sensor for determining the angular location of a light source and locating a direction defined by a plurality of sources fastened to a movable structure such as a helmet-mounted sight visor. The sensor comprises a housing with an optical mask which is provided with transparent zones of circular shape, with the result that the omnidirectional radiation transmitted by a point source is confined within a cone. Radiation-detecting means constituted by linear arrays of photosensitive elements are disposed in a plane parallel to the mask so that the center of the projected circle corresponding to the angular direction of the source is determined by the positions of sensitized elements of the detecting strips.