| 发明名称 |
High performance volume phase gratings |
| 摘要 |
Provided in one embodiment is an apparatus, comprising: an optical substrate configured to manipulate light received from a light source; and at least one diffractive element in one layer in the optical substrate, each diffractive element comprising: a plurality of sub-substrate structures separated from one another by a plurality of valleys, the sub-substrate structures comprising a material having a first refractive index; and a filler material filling at least partially at least some of the plurality of valleys, the filler material having a second refractive index that is unequal to the first refractive index. |
| 申请公布号 |
US9519089(B1) |
申请公布日期 |
2016.12.13 |
| 申请号 |
US201414168173 |
申请日期 |
2014.01.30 |
| 申请人 |
Rockwell Collins, Inc. |
发明人 |
Brown Robert D.;Stanley James H. |
| 分类号 |
G02B5/18 |
主分类号 |
G02B5/18 |
| 代理机构 |
|
代理人 |
Suchy Donna P.;Barbieri Daniel M. |
| 主权项 |
1. An apparatus, comprising:
an optical substrate configured to manipulate light received from a light source; and at least one diffractive element in one layer in the optical substrate, each diffractive element being a volume phase grating, and comprising:
a plurality of sub-substrate structures separated from one another by a plurality of valleys, the sub-substrate structures comprising a material having a first refractive index; anda filler material filling at least partially at least some of the plurality of valleys, the filler material having a second refractive index that is unequal to the first refractive index, wherein the at least one diffractive element has an index modulation value of at least about 0.3, wherein each of the plurality of valleys has a depth of between about 0.5 and 2.0 microns, the depth being from a top to a bottom of the sub-substrate structures, wherein the material of first refractive index comprises at least one of a glass, optical polymer, and a metal oxide. |
| 地址 |
Cedar Rapids IA US |
