Light guide member and light source unit using the same
US10578791B2 · kind B2 · utility
1Cited by
1References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 27, 2015 |
| Grant date | Mar 3, 2020 |
| Priority date | — |
| Expiry date | Oct 27, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/0046
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
To provide a light guide member which has less components than conventional ones and has stable wavelength conversion efficiency; and a light source unit using the light guide member. A light guide member includes: a light guide plate; a receiving space formed in the light guide plate to face a light entrance plane; and a wavelength converting material placed in the receiving space. With the use of the light guide member, the number of components can be reduced and stable wavelength conversion efficiency can be achieved. Further, the production process can be facilitated and the production cost can be reduced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.