Light source device
US11054733B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 14, 2020 |
| Grant date | Jul 6, 2021 |
| Priority date | — |
| Expiry date | Aug 14, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B21/208
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A light source device includes a blue laser light module that emits a blue laser light, and a dichroic mirror including an incident surface, and that reflects the incident blue laser light in a second direction different from a first direction which is an emission direction of the blue laser light so as to introduce the blue laser light into a fluorescent body, and allow part of light excited by the fluorescent body and emitted in a direction opposite to the second direction to penetrate through the dichroic mirror. The incident surface is provided with a dichroic coat region coated with a dichroic coat so as to reflect the blue laser light, and the dichroic coat region is formed on the incident surface such that a length in a direction orthogonal to the first direction is longer as a distance from the blue laser module is farther.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.