Optics: image projectors – Housing
Patent
1997-05-16
1999-03-02
Dowling, William
Optics: image projectors
Housing
353 52, G03B 2114
Patent
active
058761055
ABSTRACT:
A compact electronic projector has separate optics and electronics compartments which are thermally and electromagnetically isolated from each other. In this manner closely spaced components are prevented from electrically or thermally interfering with each other, and high quality projected images can be maintained. The optics compartment contains a display assembly, such as a liquid crystal display panel and associated Fresnel lenses, which is mounted inside the projector so as to rotate between a storage position in which the display assembly is generally parallel with the projection axis of the device, and an operational position in which the display assembly is disposed at an oblique angle with relative to the projection axis. The assembly can thus be rotated to occupy the voids needed for expansion and contraction of the optical beams when the projector is in use, but which have no useful function when the projector is not in use.
REFERENCES:
patent: 4925295 (1990-05-01), Ogawa et al.
patent: 4969733 (1990-11-01), Jewison
patent: 5313234 (1994-05-01), Edmonson et al.
patent: 5639152 (1997-06-01), Nelson
patent: 5651599 (1997-07-01), Fujimori et al.
patent: 5669688 (1997-09-01), Baar et al.
patent: 5676442 (1997-10-01), Fujimori
patent: 5692821 (1997-12-01), Rodriquez, Jr. et al.
patent: 5743614 (1998-04-01), Salerno et al.
Dowling William
McNutt Matthew B.
Minnesota Mining and Manufacturing Company
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