Lens alignment apparatus for use in a projection television

Details Lens alignment apparatus for use in a projection television Lens alignment apparatus for use in a projection television

1989-02-22

1990-08-14

Arnold, Bruce Y.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

350252, 358249, 358250, G02B 702

Patent

active

049482262

ABSTRACT:
A lens alignment apparatus for use in a projection television having a fluorescent screen including a tube and a projection tube mounting frame comprises a first lens mounted on the projection tube mounting frame in front of the fluorerscent screen of the tube, a lens frame for receiving the first lens, a plurality of contactors provided on one of the peripheries of the first lens and the lens frame, a plurality of guide members provided on the other of the peripheries of the first lens and the lens frame, the guide members being perpendicularly inclined with respect to the circumference of the lens frame and being adapted to contact the contactors when the first lens is received in the lens frame to align the first lens with the lens frame upon rotation of the first lens relative to the lens frame.

REFERENCES:
patent: 3048654 (1962-08-01), Schade, Sr.
patent: 4725755 (1988-02-01), Hasegawa

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