Overhead projector having a modular inner enclosure

An embodiment of an overhead projector including an outer enclosure including a projection stage; a plurality of hazardous components; and an inner enclosure located inside of the outer enclosure, wherein the inner enclosure meets both fire and electrical enclosure requirements and the inner enclosu...

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Bibliographic Details
Main Authors FESLER, ROBERT MERL, BALDWIN, DWIGHT GENE, NELSON, JEFFREY MARK
Format Patent
LanguageEnglish
Published 21.09.2001
Edition7
Subjects
ACCESSORIES THEREFOR
APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USINGWAVES OTHER THAN OPTICAL WAVES
APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FORPROJECTING OR VIEWING THEM
CINEMATOGRAPHY
ELECTROGRAPHY
HOLOGRAPHY
PHOTOGRAPHY
PHYSICS
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Summary:An embodiment of an overhead projector including an outer enclosure including a projection stage; a plurality of hazardous components; and an inner enclosure located inside of the outer enclosure, wherein the inner enclosure meets both fire and electrical enclosure requirements and the inner enclosure encloses all hazardous components. The inner enclosure is a modular electrical and optical assembly located inside of the outer enclosure including a main shell compartment, the hazardous components including a transformer having a core and a primary winding placed inside the main shell compartment a projection lamp electrically coupled to the first winding. The projection lamp has a light source portion and electrical contacts. The projection lamp is optically aligned with respect to the stage.
Bibliography:Application Number: TW20000124903