| 发明名称 |
OPTICAL DEVICE |
| 摘要 |
An optical device includes: a diffraction grating; a depolarization plate containing a birefringent material to eliminate polarization dependency of the diffraction grating; and an optical corrector configured to optically correct diffraction angle deviation of diffracted light due to diffraction at the diffraction grating. The optical corrector may be configured to bend back the diffracted light diffracted by the diffraction grating to re-emit the light to the diffraction grating. |
| 申请公布号 |
US2016195433(A1) |
申请公布日期 |
2016.07.07 |
| 申请号 |
US201614986861 |
申请日期 |
2016.01.04 |
| 申请人 |
Yokogawa Electric Corporation ;YOKOGAWA METERS & INSTRUMENTS CORPORATION |
发明人 |
Kaneko Tsutomu;Kojima Manabu |
| 分类号 |
G01J3/18;G02B27/28;G01J3/26;G02B27/00;G01J3/02;G02B17/00;G02B5/30;G02B27/42 |
主分类号 |
G01J3/18 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. An optical device comprising:
a diffraction grating; a depolarization plate containing a birefringent material to eliminate polarization dependency of the diffraction grating; and an optical corrector configured to optically correct diffraction angle deviation of diffracted light due to diffraction at the diffraction grating. |
| 地址 |
Tokyo JP |
