Selectable aperture module

Details Selectable aperture module Selectable aperture module

1988-07-26

1990-01-02

Husar, Stephen F.

Illumination

Light source and modifier

Adjustable or repositionable modifier

362324, 362284, F21V 1100

Patent

active

048917389

ABSTRACT:
A lighting system aperture mechanism formed by a movable carriage including a frame with openings for aperture means. The frame is moved to position a selected opening around a beam of light, and an aperture means disposed in the selected opening may be rotated as desired to produce special effect patterns in the beam of light.

REFERENCES:
patent: 1449122 (1923-03-01), Marchand
patent: 2214728 (1940-09-01), Gille et al.
patent: 3030856 (1962-04-01), Jordan
patent: 4082464 (1978-04-01), Johnson, Jr.
patent: 4110581 (1978-08-01), Miunier
patent: 4460943 (1984-07-01), Callahan

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