Lighting system with shutter, reflector, primary light engine and a secondary light engine coupled to shutter
US8905609B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 30, 2010 |
| Grant date | Dec 9, 2014 |
| Priority date | — |
| Expiry date | Jun 17, 2031 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60Q2400/30
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A lighting system (10) comprising a primary light engine (20); a secondary light engine (22); and a projection apparatus (14, 14a-b) comprising a reflector (28) configured to reflect electromagnetic radiation emitted from the primary light engine (20); a projector lens (28) configured to project at least a portion of the reflected electromagnetic radiation from the reflector (28); and a shutter (24, 24a-c) disposed between the secondary light engine (22) and the reflector (28). The shutter (24, 24a-c) is configured to selectively obscure a portion of the projector lens (28) from the reflected electromagnetic radiation and is further configured to selectively emit at least a portion of electromagnetic radiation from the secondary light engine (22) through at least a portion of the projector lens (28).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.