| 发明名称 | Optical focusing device | ||
| 摘要 | An optical reflection focusing device, including a grating including an alternation of first and second regions having different refraction indexes, the grating including a plurality of sub-gratings, each including a plurality of first regions aligned along a plane parallel to the mean plane of the grating, said device including structures such that, for a collimated incident coherent light beam orthogonal to the mean plane of the grating, the rays of the beam reach with a non-zero phase shift different sub-gratings of the device. | ||
| 申请公布号 | US9594198(B2) | 申请公布日期 | 2017.03.14 |
| 申请号 | US201614988853 | 申请日期 | 2016.01.06 |
| 申请人 | Commissariat à l'Energie Atomique et aux Energies Alternatives | 发明人 | Lefebvre Anthony;Boutami Salim |
| 分类号 | G02B5/18;G01N21/31;G01N21/3504 | 主分类号 | G02B5/18 |
| 代理机构 | Moreno IP Law LLC | 代理人 | Moreno IP Law LLC |
| 主权项 | 1. An optical reflection focusing device, comprising a grating comprising an alternation of first (Bi; Pi; Ai) and second regions having different refraction indexes (n1, n2), the grating comprising a plurality of sub-gratings each comprising a plurality of first (Bi; Pi; Ai) and second coplanar regions aligned along a plane parallel to the mean plane of the grating, said device comprising structures such that, for a collimated incident coherent light beam orthogonal to the mean plane of the grating, the rays of the beam reach with a non-zero phase shift different sub-gratings of the device; wherein the structures are structures of a support element of the grating, and are such that different sub-gratings are offset by a non-zero distance along a direction a direction orthogonal to the mean plane of the grating. | ||
| 地址 | Paris FR | ||