Projection apparatus and illumination system
US9915863B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 1, 2016 |
| Grant date | Mar 13, 2018 |
| Priority date | — |
| Expiry date | Jun 1, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B27/30
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An illumination system including a coherent light source device, a light delivery module, and a light wavelength conversion module is provided. The coherent light source device includes a light emitting source and a light collimating element. The light emitting source is adapted to emit at least one coherent light beam. The light collimating element is located on a transmission path of the at least one coherent light beam from the light emitting source and collimates the at least one coherent light beam. The light delivery module is located on a transmission path of at least one coherent light beam from the light collimating element and includes a first lens. The first lens has a lens array surface adapted to diverge any of the coherent light beam from the light collimating element. A projection apparatus is also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.