Complex conjugate hologram display

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

350174, G03H 122, G02B 2714

Patent

active

048802875

ABSTRACT:
Aberration in an image reflected from a warped surface such as an automobile windshield is corrected by providing an image to the windshield which is predistorted to compensate for the aberration. The predistorted image is created and stored in a hologram by a recording technique wherein a first transmission hologram which records the virtual image of an object is illuminated with a conjugate beam. The beam which is transmitted by the first transmission hologram is reflected off the windshield onto a second hologram recording plate, which is also illuminated by a reference beam passed through the windshield. The desired predistorted image is thereby stored in the second hologram recording plate.

REFERENCES:
patent: 3848974 (1974-11-01), Hosking et al.
patent: 3885095 (1975-05-01), Wolfson et al.
patent: 3887273 (1975-06-01), Griffiths
patent: 3940204 (1976-02-01), Withrington
patent: 4432597 (1984-02-01), Bjorklund et al.
patent: 4447128 (1984-05-01), Ferrer
Sincerbox, G., "Formation of Optical Elements by Holography," IBM Tech. Discl. Bull., vol. 10, No. 3, Aug. 67, pp. 267-268.
Cordelle, J. et al., "Aberration-Corrected Concave Gratings Made Holographically," Optical Instruments and Techniques (Dickson, J., ed.), Newcastle, U.K.: Oriel Press, Ltd., 1969, pp. 117-124.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Complex conjugate hologram display does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

     

Profile ID: LFUS-PAI-O-1849475

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.