Nonmechanical wavelength-independent beam steerer
US6924923B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 11, 2003 |
| Grant date | Aug 2, 2005 |
| Priority date | — |
| Expiry date | Jul 30, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B27/283
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Methods and devices are provided for steering an electromagnetic beam. The device includes a reflective element, a polarizer, a relay focusing element, and a modulation element. The polarizer is configured to transmit light of a specified polarization and to reflect light having other than the specified polarization. The relay focusing element is disposed to provide optical paths for the electromagnetic beam from a first spot position to a second spot position spatially displaced from the first spot position such that the optical paths encounter the reflective element and the polarizer. The modulation element is configured for selectively transforming a polarization of the electromagnetic beam to include a component of the specified polarization at a spatially localized position along the optical paths.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.