Radiant energy – Photocells; circuits and apparatus – Optical or pre-photocell system
Patent
1993-07-21
1994-09-20
Nelms, David C.
Radiant energy
Photocells; circuits and apparatus
Optical or pre-photocell system
359896, H01J 516
Patent
active
053491807
ABSTRACT:
A strip imaging wide angle optical system is provided. The optical system is provided with a "virtual" material stop to avoid aberrational effects inherent in wide angle optical systems. The optical system includes a spherical mirror section for receiving light from a 180-degree strip or arc of a target image. Light received by the spherical mirror section is reflected to a frusto-conical mirror section for subsequent rereflection to a row of optical fibers. Each optical fiber transmits a portion of the received light to a detector. The optical system exploits the narrow cone of acceptance associated with optical fibers to substantially eliminate vignetting effects inherent in wide-angle systems. Further, the optical system exploits the narrow cone of acceptance of the optical fibers to substantially limit spherical aberration. The optical system is ideally suited for any application wherein a 180-degree strip image need be detected, and is particularly well adapted for use in hostile environments such as in planetary exploration.
REFERENCES:
patent: 1085611 (1914-02-01), Humbrecht
patent: 3142235 (1964-07-01), Siegmund
patent: 3229105 (1966-01-01), Mestwerdt et al.
patent: 4015120 (1977-03-01), Cole
patent: 4052616 (1977-10-01), Keller
patent: 4282527 (1981-08-01), Winderman et al.
patent: 4516024 (1985-05-01), Hudson
patent: 4653880 (1987-03-01), Sting et al.
patent: 4695139 (1987-09-01), Bagby et al.
patent: 4863253 (1989-09-01), Shafer et al.
patent: 5012081 (1991-04-01), Jungwirth et al.
patent: 5016995 (1991-05-01), Pullen
patent: 5266795 (1993-11-01), Vaughan
IBM Technical Disclosure Bulletin, vol. 25, No. 9-Feb. 1983.
Allen Stephone B.
Jones Thomas H.
Kusmiss John H.
Miller Guy M.
Nelms David C.
LandOfFree
Wide field strip-imaging optical system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Wide field strip-imaging optical system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Wide field strip-imaging optical system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2430108