Outdoor framing projector
First Claim
1. An outdoor framing projector, comprising:
- a housing having an interior, an exterior, a front and a back;
means sealing said housing against substantial air exchange between the interior and the exterior of said housing;
an optical system including a light source and a lens system within said housing for projecting a beam of light of a certain size, shape and focus out the front of said housing and for varying the size and focus of said beam at a distance from said housing; and
a shutter support for changing the shape of said beam at said distance, said shutter support including a pattern holder for holding a pattern which defines a pattern of light projected at said distance.
5 Assignments
0 Petitions
Accused Products
Abstract
A luminaire especially adapted for use as an outdoor framing projector is weatherproof and has an optical system for projecting a beam of a variable size and focus. A housing made in extruded sections has a longitudinally continuous sealed joint between the sections formed by a dog-leg shaped lip on one adjacent section fitting into a correspondingly shaped recess on the other section, with a resilient sealing strip compressed between the lip and recess and a detent holding the lip and recess together. A fan forced interior air recirculation cooling system cools a lamp with the warmed air flowing longitudinally back to front past top and side walls of the housing provided with cooling fins and a return air duct adjacent to the bottom wall drawing air from the front of the housing back to the inlet of the fan. Daylight adjustment of the lamp relative to the reflector is allowed by providing the reflector with two holes which allow two reference beams to escape which are aligned with reference marks in the housing at the proper adjustment position. Lenses are supported from longitudinal flanges of the housing by bearing blocks which trap longitudinally running cylindrical bearings against the flanges and have clamp stands to secure the positions of the lenses.
49 Citations
2 Claims
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1. An outdoor framing projector, comprising:
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a housing having an interior, an exterior, a front and a back; means sealing said housing against substantial air exchange between the interior and the exterior of said housing; an optical system including a light source and a lens system within said housing for projecting a beam of light of a certain size, shape and focus out the front of said housing and for varying the size and focus of said beam at a distance from said housing; and a shutter support for changing the shape of said beam at said distance, said shutter support including a pattern holder for holding a pattern which defines a pattern of light projected at said distance. - View Dependent Claims (2)
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Specification