Apparatus for providing off-axis illumination
US10190736B1 · kind B1 · utility
5Cited by
8References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 22, 2016 |
| Grant date | Jan 29, 2019 |
| Priority date | — |
| Expiry date | May 30, 2036 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21Y2115/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A light emitting diode can emit light along an axis. An optic can be positioned to direct the emitted light off of the axis. The optic can comprise a base and a projection that rises from the base towards the light emitting diode. The projection can comprise a cavity that is oriented to receive the light emitted by the light emitting diode. The cavity can be slanted relative to the axis of the light emitting diode. A convex surface disposed at the bottom of the cavity can condense, focus, or collimate light. The projection can further comprise sides that totally internally reflect light.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.