发明名称 |
Optical Polarization Beam Combiner/Splitter with an Inorganic, Dielectric Grid Polarizer |
摘要 |
An optical polarization beam combiner or separator device includes a first optical beam carrier for carrying a first polarized beam and a second optical beam carrier for carrying a second polarized beam whose polarization is orthogonal to the polarization of the first polarized beam. First and second collimating/focusing lenses are positioned between the first and second optical carriers. A third optical beam carrier for carrying a non-polarized beam positioned on the same side of the two collimating/focusing lenses as the first optical beam carrier. An inorganic, dielectric grid polarizer is disposed between the first and second collimating/focusing lenses, and includes a stack of film layers disposed over a substrate. Adjacent film layers have different refractive indices. At least one of the film layers is discontinuous to form a form birefringent layer with an array of parallel ribs with a pitch of less than 400 nm, and greater than 200 nm.
|
申请公布号 |
US2008055722(A1) |
申请公布日期 |
2008.03.06 |
申请号 |
US20060469266 |
申请日期 |
2006.08.31 |
申请人 |
PERKINS RAYMOND T;WANG BIN;GARDNER ERIC;HANSEN DOUGLAS P |
发明人 |
PERKINS RAYMOND T.;WANG BIN;GARDNER ERIC;HANSEN DOUGLAS P. |
分类号 |
G02B5/30;G02B27/28 |
主分类号 |
G02B5/30 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|