Self correcting projector

Details Self correcting projector Self correcting projector

1997-05-13

1998-09-01

Dowling, William

Optics: image projectors

Distortion compensation

353119, G03B 2114

Patent

active

058000321

ABSTRACT:
A projector for projecting images onto a screen which includes automatically adjusting the image to correct for horizontal slant. The projector includes a spatial light modulation element and a projection optical system including an optical axis. The spatial light modulation element is automatically rotated about the optical axis to correct for horizontal positioning of the projected image. In a first embodiment the spatial light modulation element is rotated about the optical axis utilizing a gravitational weight. In another embodiment the spatial light modulation element is rotated about the optical axis in response to a sensor signal. The projector also includes the ability to convert the image from a horizontal projection to a vertical projection in response to a changeover signal.

REFERENCES:
patent: 5355188 (1994-10-01), Biles et al.
patent: 5422692 (1995-06-01), Nishiki
patent: 5622417 (1997-04-01), Conner et al.
patent: 5641957 (1997-06-01), Chae

Affiliated with

Also associated with

Rating

Self correcting projector does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Self correcting projector, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Self correcting projector will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-261979