Light polarization converter for converting linearly polarized light into radially polarized light and related methods
US8077388B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 19, 2008 |
| Grant date | Dec 13, 2011 |
| Priority date | — |
| Expiry date | Jul 25, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B5/3041
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The conversion of linear polarized light into radial-polarized light is accomplished through a radial polarization generator containing multiple layers of polarizing film, or polarization converters, for converting the beam of light to a different orientation. Using the radial polarization generator, a quasi radial-polarized beam of light can be obtained quickly and easily by simply aligning the light at the center of the polarization generator. True radial-polarization can be obtained by passing the laser through a spatial filter. With such a radial polarization generator, a large frequency range of light may be converted from a linear orientation to a radial orientation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.