Optical: systems and elements – Holographic system or element – For reconstructing image
Reexamination Certificate
2011-01-25
2011-01-25
Lavarias, Amel C (Department: 2872)
Optical: systems and elements
Holographic system or element
For reconstructing image
C359S035000, C359S900000
Reexamination Certificate
active
07876482
ABSTRACT:
A method for compensating for a wavelength mismatch between a readout reference beam and a recording reference beam in a holographic storage system is described. In order to compensate for a wavelength mismatch in a first step the wavelength mismatch is determined. In a second step the direction of at least part of the readout reference beam is adjusted relative to a holographic storage medium in dependence on the determined wavelength mismatch by defocusing the readout reference beam or by adjusting the focal length of an objective lens for focusing the readout reference beam into the holographic storage medium.
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Search Report Dated Jan. 23, 2007.
Knittel Joachim
Przygodda Frank
Chapel Derek S
Fried Harvey D.
Lavarias Amel C
McKenzie James
Shedd Robert D.
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