Lamp unit
US8425097B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 6, 2011 |
| Grant date | Apr 23, 2013 |
| Priority date | — |
| Expiry date | Jul 6, 2031 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21S45/43
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A lamp unit includes: a first board supporting a first LED; a second board supporting a second LED; a first reflector that is disposed so as to reflect, toward a projection lens, light emitted by the first LED; a second reflector that is disposed so as to reflect, toward the projection lens, light emitted by the second LED; and a shade that blocks part of light reflected by the first reflector. The first and second boards support the first and second LEDs so that the first and second LEDs are disposed on opposite sides with respect to an optical axis Ax of the projection lens. The first reflector is disposed on the side opposite to the first LED with respect to the optical axis Ax, and the second reflector is disposed on the side opposite to the second LED with respect to the optical axis Ax.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.