Lighting device for accent lighting and method
US10145515B2 · kind B2 · utility
1Cited by
2References
25Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 12, 2016 |
| Grant date | Dec 4, 2018 |
| Priority date | — |
| Expiry date | Jul 12, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03H2227/06
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Embodiments of invention are directed to a lighting device for use in accent lighting applications. In one embodiment, the lighting device includes a coherent light source, such as a laser, and a diffractive optical element. The diffractive optical element may be, for example, a holographic optical element. The lighting device may be adapted to retrofit into a pre-existing light fixture. In one application, the lighting device may project a static or movable star field and/or static or movable clouds.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.