Cube polarizer with minimal optical path length difference
US9726897B2 · kind B2 · utility
17Cited by
6References
19Claims
0Family size
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Key dates
| Filing date | Apr 29, 2015 |
| Grant date | Aug 8, 2017 |
| Priority date | — |
| Expiry date | Apr 29, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B5/04
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The cube polarizer can have modified prism dimensions to satisfy the following equation:where an optical path length is a distance of light travel through a material times an index of refraction of the material, OPLT is an optical path length of the transmitted beam, OPLR is an optical path length of the reflected beam, t is a thickness of the substrate between the first surface and the second surface of the substrate, and np is an index of refraction of the first prism.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.