Lens and light source unit
US9347644B2 · kind B2 · utility
25Cited by
1References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 16, 2012 |
| Grant date | May 24, 2016 |
| Priority date | — |
| Expiry date | Jan 11, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/1347
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A lens cap (3) is arranged to cover a light-emitting surface (23) of a light source (2), the lens thereby guiding light from the light source (2) in oblique directions relative to the light source (2). The lens cap (3) includes, in a planar view, a light transmitting region (33) and a light blocking region (34), the light transmitting region (33) divided into a plurality of light transmitting regions by the light blocking region (34) so that the light from the light source (2) passes through the plurality of light transmitting regions (33) and is separated into beams traveling in different directions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.