Radiant energy – Infrared-to-visible imaging – Including means for scanning field of view
Patent
1983-03-24
1986-03-04
Smith, Alfred E.
Radiant energy
Infrared-to-visible imaging
Including means for scanning field of view
250347, 350 67, 358206, H01J 3150, H04N 308
Patent
active
045741972
ABSTRACT:
A dual field of view sensor, particularly adapted for use as a forward-looking infrared night vision detector, includes a single detector (24) for receiving a light signal and developing an output electrical signal therefrom. A rotating polygon scanner (16) having a plurality of reflective facet (14) thereon receives light (12, 34) from two separate optical systems (10, 32) and directs the light onto the facets (14) of the scanner (16) at positions offset by one-half the facet angle such that the light beams alternately strike a facet and the juncture between two facets. The reflected light is then directed through a beam splitter 40 onto the detector in an alternating, interleaved sweeping motion. The beam splitter permits only one at a time of the light (12, 34) from entering the detector. In one embodiment, both optical systems include a steerable dual field of view telescope. In a second embodiment, a transparent display (60) such as an LCD panel, impresses a data image on one light beam (52) and the signals developed from that and another light beam are combined to drive a display. In a third embodiment, the two light beams represent the input to a stereoscopic viewing system, and the separate signals developed therefrom are used to drive a pair of small helmet-mounted displays for individual viewing by the wearer's left and right eyes to provide stereoscopic night vision viewing.
REFERENCES:
patent: 3408492 (1968-10-01), Astheimer
patent: 3597536 (1971-08-01), Fowler
patent: 3646568 (1972-02-01), Woywood
patent: 3804976 (1974-04-01), Gard
patent: 3805073 (1974-04-01), Jayachandra et al.
patent: 4432596 (1984-02-01), Campbell et al.
patent: 4458982 (1984-07-01), Blain et al.
Fields Carolyn E.
Hughes Aircraft Company
Karambelas A. W.
Smith Alfred E.
Sternfels Lewis B.
LandOfFree
Dual field of view sensor does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Dual field of view sensor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dual field of view sensor will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1595533