Non-mechanical step scanner for electro-optical sensors

Details Non-mechanical step scanner for electro-optical sensors Non-mechanical step scanner for electro-optical sensors

1993-08-03

1995-09-05

Dzierzynski, Paul M.

Optical: systems and elements

Deflection using a moving element

By moving a reflective element

359626, 2502081, G02B 2608, G02B 2710, H01J 314

Patent

active

054483956

ABSTRACT:
A non-mechanically scanned optical sensor system includes a stationary sensor array having an image plane, a lens system characterized by a field of view corresponding to image of a scene viewed by the lens system, an image divider for dividing the image into plural contiguous sub-images and a device for directing each of the sub-images onto substantially the entirety of the image plane of the sensor array. The directing device in one embodiment is an array of small lenses coextensive with respective light beams of respective sub-images of an image viewed by the lens system. In another embodiment, both the image divider and the directing device are realized together as an X-Y addressable array of electrically deformable optical elements, such as silicon micro-mirrors, individually directing respective ones of the sub-images to the sensor array. In another embodiment, the image divider is a spatial light modulator having an array of optical shutters controlling respective sub-images.

REFERENCES:
patent: 4383170 (1983-05-01), Takagi et al.
patent: 4585948 (1986-04-01), Schneider et al.
patent: 4879602 (1989-11-01), Glenn
patent: 5212582 (1993-05-01), Nelson

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