Holographic memory device

Details Holographic memory device Holographic memory device

1998-11-30

2000-08-01

Chang, Audrey

Optical: systems and elements

Holographic system or element

Using modulated or plural reference beams

359 1, 359 11, 359 22, 359 35, G03H 110, G03H 112, G03H 126, G03H 104

Patent

active

06097513&

ABSTRACT:
A holographic memory device includes: a hologram memory part for information recording by using a reference beam and an object beam, the hologram memory part having a plurality of cells; a first optical path modifying part having a fine adjustment element that adjusts the reference beam's path so as to be incident on the hologram memory part at a specific angle for information recording and reconstructing, and that adjusts the reference beam's path so as to be incident on the hologram memory part at a desired angle for information reconstructing when an angle of incidence of reference beam for information reconstructing doesn't coincide with that of reference beam for information recording; and a second optical path modifying part that adjusts the object beam's path so as to be incident on the hologram memory part for information recording. Even though physical shaking occurs on recording medium or the recording medium is replaced after information recording on the hologram memory part, the information recorded can be accurately reconstructed.

REFERENCES:
patent: 3492652 (1970-01-01), Heerden
patent: 4054357 (1977-10-01), Lurie

Affiliated with

Also associated with

Rating

Holographic memory device does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-669493