Lighting device, lighting reflector and production method therefor
US10253949B2 · kind B2 · utility
0Cited by
0References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 9, 2014 |
| Grant date | Apr 9, 2019 |
| Priority date | — |
| Expiry date | Sep 1, 2035 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21Y2115/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A lighting reflector 10 includes a base member 11, made of metal, having an inner circumferential surface 13a expanding toward a light exit aperture 14 open at an end in an axial direction. A thin-film layer 17 which is formed from a thin film containing ceramic and which scatters light is placed on an end portion of the inner circumferential surface 13a that is on the opposite side to the light exit aperture 14.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.