Eye-safe light source
US10658812B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 7, 2016 |
| Grant date | May 19, 2020 |
| Priority date | — |
| Expiry date | Oct 11, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S5/02345
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Light emission efficiency is increased in an eye-safe light source by regulating light distribution properties. An eye-safe light source includes a package, a semiconductor laser that emits laser light from a left light emission end surface and a right light emission end surface, and a wire that is joined to the semiconductor laser. The semiconductor laser is joined to the package such that the laser light is emitted parallel to an upper surface of a lead frame of the package. The package includes reflection surfaces that face the left light emission end surface and the right light emission end surface and reflect the laser light. In top view, a direction in which the wire extends is perpendicular to a direction of emission of the laser light.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.