Photographic exposure control apparatus having remote filter hol

Details Photographic exposure control apparatus having remote filter hol Photographic exposure control apparatus having remote filter hol

1990-10-19

1991-07-23

Perkey, W. B.

Illumination

Supported by vehicle structure

Condition responsive

354133, 3541491, 354288, 3542671, 354290, 354295, 362 17, G03B 1502

Patent

active

050347616

ABSTRACT:
A photographic exposure control apparatus includes a directable light source, and an auxiliary shutter which is located between a camera lens and a subject. The auxiliary shutter includes a housing structure which has a window therein. The window is selectively opened and closed by a blade which is movably mounted on the housing structure, which is motor driven, and which allows the housing structure to block entry of light into a camera lens when the window is closed, and to allow light into the lens when the window is open. A filter holder is mounted on the housing and is selectively remotely insertable between the lens and a subject.

REFERENCES:
patent: 4063263 (1977-12-01), Krenwalk, Sr.
patent: 4310228 (1982-01-01), Terada
patent: 4385344 (1983-05-01), Gonser
patent: 4530036 (1985-07-01), Conti
patent: 4553193 (1985-11-01), Evans
patent: 4557574 (1985-12-01), Kohno et al.
patent: 4755912 (1988-07-01), Evans
patent: 4876563 (1989-10-01), Ishida et al.

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