System and method using linear translation to access data locati

Details System and method using linear translation to access data locati System and method using linear translation to access data locati

1997-06-24

1998-12-01

Henry, Jon W.

Optical: systems and elements

Holographic system or element

For producing or reconstructing images from multiple holograms

359 22, 365125, G03H 130, G03H 126, G11C 1304

Patent

active

058447016

ABSTRACT:
Systems and methods for steering a complex, spatially-modulated incident beam of light from a spatial light modulator to gain access to data locations in a holographic memory cell (HMC). One of the systems includes (1) a primary beam steering system that receives the incident beam of light from the spatial light modulator and produces a resulting beam of light, wherein the primary beam steering system traverses the resulting beam of light across a plane of the HMC in increments having a first magnitude and 2) a fine-control translation mechanism, coupled to the spatial light modulator, that translates the spatial light modulator relative to the primary beam steering system to cause the resulting beam of light to traverse the plane of the HMC in increments having a second magnitude smaller than the first magnitude.

REFERENCES:
patent: 4034355 (1977-07-01), Carlsen

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