Reference beam auto-focus apparatus for modularized volume-holog

Details Reference beam auto-focus apparatus for modularized volume-holog Reference beam auto-focus apparatus for modularized volume-holog

1997-05-28

1999-03-02

Henry, Jon

Optical: systems and elements

Holographic system or element

For producing or reconstructing images from multiple holograms

359501, 365125, 369103, G03H 126, G11C 1304

Patent

active

058778756

ABSTRACT:
In a method for addressing holograms stored in a plurality of separate storage media, a reference beam is directed to a selected one of the plurality of storage media, the reference beam is then focused so as to obtain a substantially flat wavefront within a reference beam plane of the selected storage medium, and the angle of the reference beam is then varied so as to select a hologram stored therein.

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McManus et al, United States Statutory Invention Registration No. H738, Feb. 6, 1990.
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"Single-Step Copying Process for Multiplexed Volume Holograms", Optics Letters, vol. 17, No. 9, p. 676 (1992).

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