Lens body and lighting tool for vehicle
US10174896B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 13, 2016 |
| Grant date | Jan 8, 2019 |
| Priority date | — |
| Expiry date | Dec 25, 2036 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21Y2115/30
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A lens body configured to radiate light entering from a light source forward along a forward/rearward reference axis extending in a forward/rearward direction of a vehicle, the lens body including a first reflecting surface having an elliptic spherical shape, a second reflecting surface configured to internally reflect at least some of the light internally reflected by the first reflecting surface, and a light emitting surface, and the light emitting surface having a first leftward/rightward emission region configured to refract an entered light, which has passed through a first focal point, in a direction approaching a forward/rearward reference axis and a second leftward/rightward emission region configured to refract an entered light, which has passed through the first focal point, in a direction separating away from the forward/rearward reference axis at cross sections in a forward/rearward direction and a leftward/rightward direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.