Non-imaging optical detector with variable field-view

Details Non-imaging optical detector with variable field-view Non-imaging optical detector with variable field-view

1990-11-01

1991-10-01

Evans, F. L.

Optics: measuring and testing

Miscellaneous

2504581, 359886, G02B 2310

Patent

active

050528041

ABSTRACT:
A non-imaging optical telescope having a variable field-of-view utilizes an atomic resonance filter within its non-reflective tube. The atomic resonance filter received incoming light through the aperture of the telescope and re-emits the light to an optical sensor. The field-of-view is a function of the distance of the atomic resonance filter from the aperture. A positioning mechanism is provided to move the atomic resonance filter within the tube, thereby varying the field-of-view.

REFERENCES:
patent: 4292526 (1981-09-01), Marling
patent: 4717828 (1988-01-01), Liu
patent: 4829597 (1989-05-01), Gelbwachs

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