Achromatic illumination system for small targets

Details Achromatic illumination system for small targets Achromatic illumination system for small targets

1978-04-14

1979-01-30

Behrend, Harvey E.

Illumination

Supported by vehicle structure

Condition responsive

176 1, 350294, 350299, 362259, G02B 510

Patent

active

041369262

ABSTRACT:
A pair of light beams is directed to provide illumination that is substantially uniform from all directions on a small target by a system comprising a pair of corrector windows, a pair of planar reflecting surfaces, a pair of paraboloidal mirrors and a reflecting mirror cavity. The components are arranged so that each of the beams passes through a corrector and is reflected from the planar surface to the paraboloidal mirror, from which it is focused through a hole in the planar surface to the interior of the cavity. The surface of the interior portion of the cavity is shaped to reflect the focused beam three times before the focused reflected beam strikes the target.

REFERENCES:
patent: 3001055 (1961-09-01), Lozier et al.
patent: 3963328 (1976-06-01), Abel
patent: 4017163 (1977-04-01), Glass
patent: 4084887 (1978-04-01), Sigler

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