Lighting device
US9804318B2 · kind B2 · utility
0Cited by
8References
22Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 29, 2014 |
| Grant date | Oct 31, 2017 |
| Priority date | — |
| Expiry date | Sep 14, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/0068
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A lighting device includes an LED, a light guiding member, and a mask member. The light guiding member has a cut to provide a directivity to light emitted from the LED. The cut is provided at a position corresponding to the LED on an emission surface side of the light guiding member. The mask member is disposed on an emission surface side of the cut to block the light emitted from the LED.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.