Spread lens with refraction parts, and lighting device
US8128260B2 · kind B2 · utility
6Cited by
8References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 21, 2008 |
| Grant date | Mar 6, 2012 |
| Priority date | — |
| Expiry date | Mar 30, 2029 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21Y2115/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A spread lens including a first lens surface through which the emitted light from the light emitting device is inputted; a second lens surface spreading the inputted light to an outside; refraction parts which extend between both side ends of each of the first and second lens surfaces, are formed in a concave-convex shape, and refract the emitted light from the light emitting device; and support parts which extend at both side ends of the second lens surface and separate the refraction parts and the light emitting device from each other.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.