Illumination – Light source and modifier – Adjustable or repositionable modifier
Patent
1988-06-01
1989-05-02
Husar, Stephen F.
Illumination
Light source and modifier
Adjustable or repositionable modifier
362277, 362301, F21V 705
Patent
active
048273872
ABSTRACT:
A beam steering mechanism for deflecting a light beam along any selected azimuth and elevational direction. The beam is movable without limitation about a pan axis and about a tilt axis, by drive motors that are rigidly mounted to a housing and are not bodily moved with the light beam. Movement about the pan axis is effected by rotation of a first mirror mounted in a first rotatable cylinder. Movement about the tilt axis is effected by rotation of a second mirror mounted in a second cylinder that is panned with the first cylinder and is itself mounted for rotation about the tilt axis.
REFERENCES:
patent: 4663698 (1987-05-01), Tomlinson
patent: 4769743 (1988-09-01), Callahan
Ferren Bran
Harrison Charles F.
Hope Clinton B.
Kohut Robert J.
Heal Noel F.
Husar Stephen F.
Strand Lighting, Inc.
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