Selectable aperture module
First Claim
Patent Images
1. Selectable aperture apparatus for use across a beam of light projected in a spotlight, comprising:
- a base;
carriage means movably suspended on said base and having a surface defining a first plurality of openings;
a second no greater plurality of pattern aperture means having circular rims, disposed co-axially and rotatably adjacent respective ones of said openings;
carriage drive means supported by said base for controllably positioning said carriage means so that a selected one of said openings is co-axially intersected by the optical axis of said beam of light; and
aperture drive means for controllably spinning a pattern aperture means disposed adjacent an opening then intersected by said optical axis to spin the apparent pattern of light in said beam.
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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.
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Citations
7 Claims
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1. Selectable aperture apparatus for use across a beam of light projected in a spotlight, comprising:
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a base; carriage means movably suspended on said base and having a surface defining a first plurality of openings; a second no greater plurality of pattern aperture means having circular rims, disposed co-axially and rotatably adjacent respective ones of said openings; carriage drive means supported by said base for controllably positioning said carriage means so that a selected one of said openings is co-axially intersected by the optical axis of said beam of light; and aperture drive means for controllably spinning a pattern aperture means disposed adjacent an opening then intersected by said optical axis to spin the apparent pattern of light in said beam. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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Specification