Illumination – Light source and modifier – Tiltable or rotatable as a unit
Patent
1988-08-08
1990-06-05
Okonsky, David A.
Illumination
Light source and modifier
Tiltable or rotatable as a unit
362284, 362296, 362428, G03B 1502
Patent
active
049319167
ABSTRACT:
A light projector, suitable for entertainment lighting and comprising a light source and associated light collecting means producing an elongated beam having an optical centerline that is preferably substantially horizontal, is provided with a means, typically a mirror, mounted to a first support adapted for rotation about an axis coincident with that centerline, for redirecting the beam through a first plane perpendicular to that substantially horizontal axis and centerline. A second mirror is rotatably mounted to the first support so that the redirected beam falls upon it, redirecting the beam a second time, through a second plane perpendicular to the centerline of the beam in the region between the first and second mirrors; a second plane that is also substantially parallel to the axis of rotation of the first support. The first support is supported for rotation about said axis on both sides of the means for redirecting.
REFERENCES:
patent: 1403876 (1922-01-01), Sperry
patent: 2054224 (1936-09-01), Levy
patent: 3139604 (1964-06-01), Meiners et al.
patent: 3594566 (1971-07-01), Kneisley
patent: 4460943 (1984-07-01), Callahan
patent: 4527198 (1985-07-01), Callahan
patent: 4663698 (1987-05-01), Tomlinson
patent: 4729071 (1988-03-01), Solomon
patent: 4769743 (1988-09-01), Callahan
Kneisley Electric Company, "Super Spot" data sheet No. 250, Printed 2/25/70.
Christie Electric Corporation, "HAL" print advertisement as published 6/79.
WelinLite (R.O.C.) fixture print advertisement as published 6/89.
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