Illumination – Photographic lighting – Including specific light modifier
Patent
1996-07-19
1998-07-07
Husar, Stephen F.
Illumination
Photographic lighting
Including specific light modifier
362282, 362287, 362326, 362328, G03B 1502
Patent
active
057757909
ABSTRACT:
An illuminating optical system including a light emitting device for supplying illuminating light, a directing member for directing the light beam from the light emitting device by refracting action, and a moving device for moving at least one of the light emitting device and the directing member in a direction differing from the direction of the optical axis of the directing member and varying the spacing between the light emitting device and the directing member to thereby vary the illumination range at a predetermined distance.
REFERENCES:
patent: 4991063 (1991-02-01), Stoneham
patent: 5050044 (1991-09-01), Shibayama
Husar Stephen F.
Nikon Corporation
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