Lamp body having a light guide body having two light guide lenses and a half mirror facing a reflector for emitting from a light emitting surface of the lamp body
US11137127B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 3, 2020 |
| Grant date | Oct 5, 2021 |
| Priority date | — |
| Expiry date | Dec 3, 2040 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21S43/37
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A lamp body includes a light source, a light guide body configured to cause light from the light source to be guided and cause the light to be emitted from a light emitting surface, a reflector configured to cause the light, which has exited from a light guide exit surface of the light guide body, to be reflected toward a side of the light emitting surface; and a half mirror disposed to face the reflector and having a reflection area where the light reflected by the reflector is reflected toward a side of the reflector and a transmission area where the reflected light is transmitted. In the light guide body, a first light guide lens causes the light to be guided in a first direction and a second light guide lens has the light guide exit surface from which the light exits in a second direction intersecting the first direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.