Optical: systems and elements – Holographic system or element – For producing or reconstructing images from multiple holograms
Patent
1995-08-21
1997-04-15
Henry, Jon W.
Optical: systems and elements
Holographic system or element
For producing or reconstructing images from multiple holograms
359 22, G02B 1126, G02B 1128
Patent
active
056215495
ABSTRACT:
An apparatus for positioning a data and reference beam onto the surface of a holographic storage media (10) includes a laser (16) for generating the reference beam, and a first reflecting surface (18) for positioning the output of the laser (16) along the y-axis. The beam is split into a data beam and a reference beam by a beam splitter (24) with the data beam directed toward an SLM (36) and the reference beam (26) directed toward an angle multiplexing reflective surface (40). The data beam during a record operation is reflected from the surface of the SLM (36) to a transform lens (34) and then to a column (35) on the surface of a holographic storage media (10). The reference beam is reflected from a reflective surface (40) at a predetermined angle determined by the position of the reflective surface (40) to an HOE (46) for redirection to the surface of the storage media (10) to interfere with the data beam. During a data reconstruction operation, only the reference beam is generated. This results in a reconstructed image being directed toward an imaging lens (52) and then to a detector (54).
REFERENCES:
patent: 3407405 (1968-10-01), Hoadley
patent: 3408656 (1968-11-01), Lamberts
patent: 3556628 (1971-01-01), Burckhardt
patent: 3567305 (1971-03-01), Collier et al.
patent: 3635538 (1972-01-01), Caulfield et al.
patent: 3697149 (1972-10-01), Van Heeckeren et al.
patent: 3751132 (1973-08-01), Crow
patent: 3761155 (1973-09-01), Lo et al.
patent: 3805275 (1974-04-01), Kienle et al.
patent: 3820869 (1974-06-01), Bolosset et al.
patent: 3838903 (1974-10-01), Leith et al.
patent: 3888561 (1975-06-01), Kurtz
patent: 3891976 (1975-06-01), Carlsen
patent: 3912391 (1975-10-01), Fleisher et al.
patent: 3915551 (1975-10-01), Silverman et al.
patent: 3976354 (1976-08-01), Braitberg et al.
patent: 4063795 (1977-12-01), Hiugnard et al.
patent: 4076370 (1978-02-01), Wako
patent: 4213193 (1980-07-01), Reid et al.
patent: 4224480 (1980-09-01), Satoh et al.
patent: 4307165 (1981-12-01), Blazey et al.
patent: 4334007 (1982-06-01), Tinet et al.
patent: 4362806 (1982-12-01), Whitmore
patent: 4621351 (1986-11-01), Baer et al.
patent: 4636027 (1987-01-01), Dube
patent: 4687720 (1987-08-01), Wreede et al.
patent: 4799746 (1989-01-01), Wreede
patent: 4839250 (1989-06-01), Cowan
patent: 4983003 (1991-01-01), Wreede et al.
patent: 5007690 (1991-04-01), Chern et al.
patent: 5095375 (1992-03-01), Bolt
patent: 5098176 (1992-03-01), Wolf
patent: 5283777 (1994-02-01), Tanno et al.
Henry Jon W.
Howison Gregory M.
Tamarack Storage Devices, Inc.
LandOfFree
Method and apparatus for positioning a light beam on a holograph does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus for positioning a light beam on a holograph, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for positioning a light beam on a holograph will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-365324