Lighting instrument with movable filters and associated actuatio

Details Lighting instrument with movable filters and associated actuatio Lighting instrument with movable filters and associated actuatio

1991-12-16

1993-02-16

Dority, Carroll B.

Illumination

Light source and modifier

Including selected wavelength modifier

362283, 362281, F21V 900

Patent

active

051865360

ABSTRACT:
A lighting instrument having pivotable color filters arranged in a substantially radial arrangement with respect to a projected light beam. Multiple sets of such filters are spaced along the axis of the light beam to vary the color of the light beam emitted from the instrument. A motorized mechanism rotates each filter of each set in synchronization with each other and independently with respect to filters of the other sets. The filters may be rotated by the motorized mechanism through flexible coupling mechanisms. The filters also may be positioned to pass unfiltered light to vary the saturation of the light beam.

REFERENCES:
patent: 1619198 (1927-03-01), Edison
patent: 2913572 (1959-11-01), Fritzlen
patent: 3080474 (1963-03-01), Allen
patent: 3426189 (1969-02-01), Deputy
patent: 3604922 (1971-09-01), Steel
patent: 3609339 (1971-09-01), Smith
patent: 4602321 (1986-07-01), Bornhorst
patent: 4974136 (1990-11-01), Noori-Shad et al.
patent: 4980806 (1990-12-01), Taylor

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