Light-modulating element, display element, and exposure element

Details Light-modulating element, display element, and exposure element Light-modulating element, display element, and exposure element

2006-05-23

2006-05-23

Sugarman, Scott J. (Department: 2873)

Optical: systems and elements

Optical modulator

Light wave directional modulation

C359S290000

Reexamination Certificate

active

07050219

ABSTRACT:
Subjects for the invention are to provide a light-modulating element having an elevated energy efficiency while preventing a decrease in contrast at low cost without using a display technique employing a waveguide or lightguide plate, and to provide a display element capable of producing high-quality display images and an exposure element capable of exposure treatment.In the invention, the light-modulating element comprises: a total-reflection optical member2having such a property that at least part of planar incident light introduced into the light-modulating element is totally reflected at an interface (total reflection plane)22of a layer constituted by the light-modulating element and the incident light does not substantially go out through the side opposite to the incident-light introduction side; and light-coupling elements6which are disposed on the total reflection plane22side of the total-reflection optical member2and serve to selectively couple with the incident light and take out the same from the total reflection plane22.

REFERENCES:
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patent: 6470115 (2002-10-01), Yonekubo
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patent: 2000-66122 (2000-03-01), None
patent: 2001-75488 (2001-03-01), None
patent: WO 97/31288 (1997-08-01), None

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