Illumination – Photographic lighting – Including specific light modifier
Patent
1977-09-07
1979-02-20
Lechert, Jr., Stephen J.
Illumination
Photographic lighting
Including specific light modifier
362281, 362300, 362303, 362311, 362346, G03B 1502
Patent
active
041410572
ABSTRACT:
A reflector of a photo flash device bounds a space for a light source. The space has an open side across which a light-transmissive shield extends that permits light from the source to issue through the opening at a first angle of emergence. A wide-angle light-transmissive shield is hinged to a frame of the first-mentioned shield and can be swung into and out of an operating position in which it is located in front of the first-mentioned shield and causes the issuing light to emerge at a larger angle of emergence. This permits a user to increase or decrease the area which he wishes to have illuminated when the device is operated.
REFERENCES:
patent: 2587423 (1952-02-01), Young
Dietrich Rolf
Eisinger Wolfgang
Heintke Hans E.
Karey Hans
Oberheim Robert
Braun AG
Lechert Jr. Stephen J.
Striker Michael J.
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