Light modulator using near-field

Details Light modulator using near-field Light modulator using near-field

2006-05-09

2006-05-09

Mack, Ricky L. (Department: 2873)

Optical: systems and elements

Optical modulator

Light wave temporal modulation

C359S291000, C359S298000, C359S558000, C359S569000

Reexamination Certificate

active

07042620

ABSTRACT:
Disclosed is a spatial light modulator using a near-field. The spatial light modulator includes a light permeable substrate which has a predetermined first refractive index and allows incident light passing through a side thereof from an external light source to permeate therethrough. A near-field forming member has a second refractive index smaller than the first refractive index, and is formed on the other side of the light permeable substrate to achieve total reflection of the incident light to form the near-field. Actuating elements each have a third refractive index larger than the second refractive index, and are formed on the other side of the light permeable substrate to be moved close to or away from the near-field, thereby transforming the near-field.

REFERENCES:
patent: 5311360 (1994-05-01), Bloom et al.
patent: 6411423 (2002-06-01), Ham
patent: 6519073 (2003-02-01), Goossen

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