[특허]Strapdown stellar sensor and holographic multiple field of view telescope therefor

[미국특허] Strapdown stellar sensor and holographic multiple field of view telescope therefor 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	G01J-001/20
출원번호	US-0811566 (1991-12-20)
발명자 / 주소	Mantravadi Murty V. (Carson CA) Raffensperger Susan M. (Long Beach CA) Simpson Phillip (Rancho Palos Verdes CA) Jungwirth Douglas R. (Reseda CA) Levine Seymour (Topanga CA)
출원인 / 주소	Northrop Corporation (Los Angeles CA 02)
인용정보	피인용 횟수 : 36 인용 특허 : 0

초록 ▼

A star tracker for generating positional information for a vehicle includes a holographic telescope (150) having one or more fields of view for imaging stellar objects. The telescope includes a plurality of radiation detectors (100) and an input aperture comprised of a primary holographic optical element (HOE) (134). The primary HOE provides one or more wavefronts to one or more secondary HOEs (136), each of which applies a chromatic correction so as to correct for a chromatic aberration induced by the primary HOE. A single or multiple field of view Schmidt telescope embodiment is also disclosed having one or more aspheric corrector plate HOEs and one or more associated concave spherical reflectors.

대표청구항 ▼

A multiple field of view optical telescope, comprising: a primary holographic optical element (HOE) having a first surface for receiving a plurality (N) of ray bundles representing a plurality (N) of wavefronts and a second surface for outputting the plurality of ray bundles to a plurality (N) of focal points, the primary HOE having a first aberration characteristic for wavelengths within a band of wavelengths; a plurality (N) of secondary HOEs individual ones of which have a concave reflecting surface of radius (r) for directing an incident ray bundle received from said primary HOE so as to form a final real image at an associated one of (N) focal points, each of said concave reflecting surfaces being disposed along an axis that runs from said second surface of said primary HOE and that passes through an associated one of said N focal points, each of said plurality of secondary HOEs having a second aberration characteristic for wavelengths within the band of wavelengths that is opposite that of the first aberration characteristic for substantially cancelling an effect of the first aberration characteristic upon the associated one of the final real images; and a plurality (N) of achromatic lens elements individual ones of which are disposed in proximity to one of said (N) focal points for imaging the primary HOE upon an associated one of the secondary HOEs such that all rays diverging from a single point on the second surface of the primary HOE are brought to a single point on the surface of the secondary HOE.

이 특허를 인용한 특허 (36) 인용/피인용 타임라인 분석

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Elkin David (6006 Berkeley Ave. Baltimore MD 21209), Method for finding viewing intervals for the control of instruments, star trackers, and sensors on earth and solar syste.
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David Kessler ; Joshua M. Cobb ; John Agostinelli, Monocentric autostereoscopic optical apparatus and method.
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Agostinelli, John A.; Kowarz, Marek W., Monocentric autostereoscopic optical apparatus using a scanned linear electromechanical modulator.
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Agostinelli, John A.; Kowarz, Marek W., Monocentric autostereoscopic optical apparatus using a scanned linear electromechanical modulator.
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Agostinelli, John A.; Cobb, Joshua M., Monocentric autostereoscopic optical apparatus using resonant fiber-optic image generation.
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Liang, Rongguang; Kessler, David, Monocentric autostereoscopic optical apparatus with a spherical gradient-index ball lens.
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Agostinelli, John A.; Kowarz, Marek W.; Horvath, Louis S., Monocentric autostereoscopic optical display having an expanded color gamut.
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Agostinelli, John A.; Cobb, Joshua M., Monocentric autostereoscopic viewing apparatus using resonant fiber-optic image generation.
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Jungwirth, Douglas R., Multi-directional, multi-spectral star tracker with a common aperture and common camera.
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Smith,Robert J., On-axis laser receiver wavelength demultiplexer with integral immersion lensed detectors.
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Smith,Robert J., Processing of multiple wavelength signals transmitted through free space.
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Richards, Les H.; Nicholson, James E., Single multiple aperture ("SMART") lens system.
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Richards, Les H.; Nicholson, James E., Single multiple aperture (“smart”) lens system.
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Waldron, Erik L.; Laine, Juha-Pekka J.; Blasche, Gregory P.; Chaparala, Murali V.; Dawson, Robin Mark Adrian; Lane, Benjamin F.; Smith, Stephen P., Star tracker.
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Liu Yong ; Wu Yeong-Wei Andy ; Li Rongsheng, System for star catalog equalization to enhance attitude determination.
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Amadon, Charles Gregory; Rallison, Richard D.; Pratt, Mark; Bajorins, David P.; Stapleton, Lawrence Cooper; Riday, Richard B.; Brown, Harold Alexander; Lauby, William Joseph; Thomas, Michael; Sparrol, Transceiver for a wireless optical telecommunication system.
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A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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[미국특허] Strapdown stellar sensor and holographic multiple field of view telescope therefor 원문보기