Acousto-optical data input transducer with optical data storage

Details Acousto-optical data input transducer with optical data storage Acousto-optical data input transducer with optical data storage

1975-06-17

1976-11-02

Stern, Ronald J.

Communications: electrical

Land vehicle alarms or indicators

Internal alarm or indicator responsive to a condition of the...

340173LM, 350161, G03H 104, G11C 1304

Patent

active

039893472

ABSTRACT:
The present invention is directed to the improvements in an apparatus for holographically recording data on a storage medium with the data being block-organized holographic data by spatially modulating a laser beam into a plurality of object beams which are directed at a storage medium to interfere with a reference beam to form the holographic recording. The improvements are that the means for spatially modulating comprises an acousto-optical light deflector having a large area, piezoelectric sound transducers disposed on the one side thereof, the sound transducer having n electrodes spaced thereon to form n transducer units which receive a signal with a frequency mixture of m frequencies to deflect the beam passing through each unit into m beam directions with the light frequency of each beam having a Doppler shift associated with the amount of deflection. The apparatus also includes providing a lens raster consisting of n times m lens elements arranged in a manner to widen each of the object beams to illuminate the entire hologram and means for compensating for the Doppler shift in the light frequencies of the object beams.

REFERENCES:
patent: 3657473 (1972-04-01), Corcoran
patent: 3698794 (1972-10-01), Alphonse
patent: 3731231 (1973-05-01), Torquet
patent: 3937555 (1976-02-01), Kurtz
Montgomery et al., Proc. of Electro-Optical System Design Conf., New York, Sept. 1972, pp. 295-308.
Aleksoff et al., Applied Optics, vol. 14, No. 1, Jan. 1975, pp. 134-141.

Affiliated with

Also associated with

Rating

Acousto-optical data input transducer with optical data storage does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Acousto-optical data input transducer with optical data storage , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Acousto-optical data input transducer with optical data storage will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1155485