Dimmer for fiber optic systems

Details Dimmer for fiber optic systems Dimmer for fiber optic systems

1991-02-04

1993-05-04

Lazarus, Ira S.

Illumination

Revolving

362281, 362321, 362323, 362324, F21V 704

Patent

active

052074943

ABSTRACT:
A dimmer for variably adjusting light transmitted through it to a fiber optic bundle from a light source whose own intensity is not to be adjusted. A body has an axial passage for light to pass through. A plurality of opaque vanes is symetrically arranged in the passage. They meet at an apex located on the axis. Each vane has an axis of rotation in a plane normal to the axis and are rotatable to vary the amount of light which is transmitted. These vanes are coordinated for simultaneous and identical rotation.

REFERENCES:
patent: 4210955 (1980-07-01), Labrum
patent: 4233650 (1980-11-01), Hagner et al.
patent: 4811182 (1989-03-01), Salomon

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