发明名称 |
OPTICAL DEVICE USING LATERALLY-SHIFTABLE DIFFRACTION GRATINGS |
摘要 |
A double-sided grating divider acts as a light switch where the upper and lower grating dividers are arranged to accommodate a relative lateral shift therebetween of about one-fourth of the period of the diffraction grating elements and where the critical refraction angles of the grating dividers are more than about 43.6°. Lateral shift may be achieved by various devices including MEMS and metal couplers having a known/calibrated thermal coefficient of expansion over a temperature range of interest. |
申请公布号 |
US2012075703(A1) |
申请公布日期 |
2012.03.29 |
申请号 |
US201113309834 |
申请日期 |
2011.12.02 |
申请人 |
IIZUKA HIDEO;ENGHETA NADER;THE TRUSTEES OF THE UNIVERSITY OF PENNSYLVANIA;TOYOTA MOTOR ENGINEERING AND MANUFACTURING NORTH AMERICA, INC. |
发明人 |
IIZUKA HIDEO;ENGHETA NADER |
分类号 |
G02B5/18 |
主分类号 |
G02B5/18 |
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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