High-power illumination device for a camera

Details High-power illumination device for a camera High-power illumination device for a camera

1988-12-08

1990-01-16

Perkey, W. B.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358225, 358229, G03B 300, G02B 1316, H04N 5225, H04N 530

Patent

active

048946770

ABSTRACT:
A high-power illumination device (2) integrated with a camera (1) for measuring the direction, distance and/or attitude of two objects relative to each other, one of the objects carrying the device. For obtaining a high-power emission several elementary light sources (10) are arranged in a ring configuration around the input-optical system (7) of the camera. The light beam emitted by each source is focused via a deflecting mirror (12) onto a facet mirror (13) surrounding the input-optical system (7) and comprising as many facets as there are light sources. Each facet is inclined so as to align the direction of the reflected beam with the direction of the field of view of the camera. The beams from these facets are thus quasi-superimposed around the optical axis of the camera.

REFERENCES:
patent: 2138723 (1938-11-01), Bell
patent: 3821764 (1974-06-01), Shelton
patent: 3958080 (1978-05-01), Schadler
patent: 4229762 (1980-10-01), Healy
patent: 4816854 (1989-03-01), Tsuji et al.

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