Method and apparatus for selectively positioning dual...

Details Method and apparatus for selectively positioning dual... Method and apparatus for selectively positioning dual...

2005-03-22

2005-03-22

Adams, Russell (Department: 2851)

Optics: image projectors

Plural

C353S119000, C353S048000, C352S133000

Reexamination Certificate

active

06869191

ABSTRACT:
An apparatus for selectively positioning a first projector and a second projector to project an image through a single projection aperture. The apparatus comprises a first rail system, extending longitudinally along a second axis substantially perpendicular to the first axis; a first platform, translationally slidable in the second axis on at least a portion of the first rail system; a second rail system, disposed on the first platform; a second platform, adapted for mounting the first projector and translationally slidable along the first axis on the second rail system; and a third platform, adapted for mounting the second projector and translationally slidable in the second axis on at least a portion of the first rail system.

REFERENCES:
patent: 1487473 (1924-03-01), Reaves
patent: 2200594 (1940-05-01), Diggins et al.
patent: 2345911 (1944-04-01), Adorno
patent: 2555106 (1951-05-01), Beazley
patent: 3912385 (1975-10-01), Stokes et al.
patent: 4838515 (1989-06-01), Prentice
patent: 5207115 (1993-05-01), Takei

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