System for shifting at least one light spot

Details System for shifting at least one light spot System for shifting at least one light spot

2008-07-15

2008-07-15

Lester, Evelyn A. (Department: 2873)

Optical: systems and elements

Optical modulator

Light wave temporal modulation

C359S245000, C359S290000, C359S291000, C349S202000

Reexamination Certificate

active

10571827

ABSTRACT:
The invention relates to a system for shifting at least one light spot (903), said system comprising: —a phase-modulator (906) for generating, from an input light beam, a light beam which is phase-modulated according to a controllable phase profile, —an array of apertures (902) for generating said at least one light spot (903) from said phase-modulated light beam, a change of the phase profile implying a shift of said at least one light spot (903). Use: Optical storage

REFERENCES:
patent: 5027359 (1991-06-01), Leger et al.
patent: 5033060 (1991-07-01), Leger et al.
patent: 5124843 (1992-06-01), Leger et al.
patent: 5359193 (1994-10-01), Nyui et al.
patent: 6341136 (2002-01-01), Hiiro
patent: 6342969 (2002-01-01), Lee
patent: 2002/0126279 (2002-09-01), Kung et al.
patent: 2003/0076507 (2003-04-01), Ito
patent: 2005/0140953 (2005-06-01), Scheiner
patent: 2005/0248769 (2005-11-01), Weitzel
patent: 2007/0104406 (2007-05-01), Hendriks et al.

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