Illuminating optical system

Details Illuminating optical system Illuminating optical system

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

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