Light emitting device and vehicle display device
US6820991B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 14, 2003 |
| Grant date | Nov 23, 2004 |
| Priority date | — |
| Expiry date | Jan 25, 2023 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60K2360/6992
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A light emitting apparatus includes a light guiding member that projects light, incident on an end face thereof, through a principal plane; and a plurality of light emitting diodes that are optically coupled with the end face. The light guiding member has a protruding surface formed in part of the end face thereof and comprises a first light introducing portion that is formed on the protruding surface and is optically coupled to a first light emitting diode, and a second light introducing portion that is optically coupled to a second light emitting diode and is formed on the rest of the end face. The first and second light emitting diodes are capable of emitting color-blended light having two or more peaks in the spectrum.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.