Reflective spatial light modulator

Details Reflective spatial light modulator Reflective spatial light modulator

2011-01-25

2011-01-25

Ullah, Akm E (Department: 2874)

Liquid crystal cells, elements and systems

Particular structure

Having significant detail of cell structure only

Reexamination Certificate

active

07876405

ABSTRACT:
The present invention relates to a reflective spatial light modulator enabling improvement of light resistance and prevention of damaging of the liquid crystal layer. The reflective spatial light modulator controls phases of the incident light and a reflected light while reflecting light made incident from a front side, and comprises a liquid crystal layer, a dielectric multilayer film, and a phase shift layer. The liquid crystal layer is filled with a liquid crystal comprised of a light modulating material, and modulates the incident light. The dielectric multilayer film reflects the incident light. The phase shift layer is disposed between the liquid crystal layer and the dielectric multilayer film to shift phases of the incident light and the reflected light at an interface of the liquid crystal layer.

REFERENCES:
patent: 7697080 (2010-04-01), Mather et al.
patent: 2009/0103053 (2009-04-01), Ichikawa et al.
patent: 8-234157 (1996-09-01), None
patent: 2002-506230 (2002-02-01), None
patent: 2005-345736 (2005-12-01), None
patent: 2006-68762 (2006-03-01), None
patent: WO 03/034133 (2003-04-01), None
J. Stockley et al., “Liquid crystal spatial light modulator for multispot beam steering,” Proc. of SPIE, vol. 5160, 2004, pp. 208-215.

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