Method and apparatus for interacting with a computer generated p

Details Method and apparatus for interacting with a computer generated p Method and apparatus for interacting with a computer generated p

1993-05-28

1995-06-06

Cuchlinski, Jr., William A.

Optics: image projectors

Miscellaneous

353 42, 345158, G03B 2100, G09G 302

Patent

active

054226937

ABSTRACT:
Disclosed is a method and apparatus for one or more operators to interact with a computer-controlled image projection-system. An operator-controlled radiation projector projects a beam of radiation which may be visible or invisible on the image created by the computer-controlled image projection system. A position sensing device determines the position of the projected radiation relative to the projected image and provides position information to the computer. In a preferred embodiment, the computer can then generate an additional image at or related to the spot of radiation permitting the operator to draw or paint pictures on the computer-projected image. In an additional preferred embodiment, the use of the position sensing device can be utilized to sense the position of a spot projected by one or more of a multiple gun projector which in a closed loop feedback loop can be used to control alignment of images projected by the multiple gun projector. In a preferred three-gun projector embodiment, the relationship between a spot projected by one or more projectors and its position as determined by two or less position sensors results in accurate alignment in translation, roll and magnification.

REFERENCES:
patent: 4565999 (1986-01-01), King et al.
patent: 4844476 (1989-07-01), Becker
patent: 5114224 (1992-05-01), Miyamoto et al.
patent: 5235363 (1993-08-01), Vogeley et al.

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