发明名称 |
GRATING-BASED LIGHT MODULATION EMPLOYING A LIQUID CRYSTAL |
摘要 |
A light modulator includes a light guide to guide light by total internal reflection, a diffraction grating at a surface of the light guide, and a liquid crystal in contact with the diffraction grating. The liquid crystal has a first state with a first refractive index that substantially matches a refractive index of a material of the diffraction grating to defeat the diffractive coupling. The liquid crystal has a second state with a second refractive index that differs from the first refractive index to facilitate the diffractive coupling. |
申请公布号 |
WO2014204471(A1) |
申请公布日期 |
2014.12.24 |
申请号 |
WO2013US46873 |
申请日期 |
2013.06.20 |
申请人 |
HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. |
发明人 |
GIBSON, GARY;FATTAL, DAVID A. |
分类号 |
G02F1/01;G02B26/00;G02F1/13 |
主分类号 |
G02F1/01 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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