Light guide device, lighting apparatus and motor vehicle
US10317603B2 · kind B2 · utility
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20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 15, 2018 |
| Grant date | Jun 11, 2019 |
| Priority date | — |
| Expiry date | Jun 15, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/0021
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A light guide device is for a lighting apparatus of a motor vehicle. The light guide device includes: a light incident end to receive an incident light, the light incident end having at least one light incident face and each light incident face has a first edge and a second edge that are displaced from each other in a direction along an axis of the light guide device. The light guide device can improve the uniformity and efficiency of incident light coupling of the light guide device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.