Lens for an illuminating device
US9557028B2 · kind B2 · utility
0Cited by
2References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 10, 2015 |
| Grant date | Jan 31, 2017 |
| Priority date | — |
| Expiry date | May 14, 2035 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21Y2115/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A lens includes a lens portion, an outer periphery and a prism portion. The lens portion is disposed at a middle portion of the lens, has an outline that is non-circular, and includes at least one curved surface. The outer periphery surrounds the lens portion. The prism portion is disposed between the lens portion and the outer periphery, and includes at least two undulated sections. Each undulated section has at least one undulated surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.