Display projection method and apparatus an optical input device

Details Display projection method and apparatus an optical input device Display projection method and apparatus an optical input device

1993-09-17

1995-03-21

Cuchlinski, Jr., William A.

Optics: image projectors

Housing

353 98, 353122, G03B 2128

Patent

active

054000955

ABSTRACT:
The present invention relates to a compact display projector and method of using it to project images under the control of image generating equipment, such as computers and television systems. An optical input device is built into the projector to enable optical control signals directed onto the projected image, to be discriminated for causing the image generating equipment to modify the projected image. A positionally adjusted mirror device is disposed in optical alignment with the optical input device to reflect the optical control signals back thereto, whereby the optical input device is readily aligned with the projected image to monitor it for the occurrence of any optical control signals.

REFERENCES:
patent: 4808980 (1989-02-01), Drumm
patent: 4953971 (1990-09-01), Highfill
patent: 5090800 (1992-04-01), Ushiro
patent: 5114224 (1992-05-01), Miyamoto et al.
patent: 5235363 (1993-08-01), Vogeley et al.

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