Light emitting device and method for manufacturing light emitting device
US11394170B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 4, 2019 |
| Grant date | Jul 19, 2022 |
| Priority date | — |
| Expiry date | Aug 19, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S2301/02
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A light emitting device includes a package defining a recess, a cap and at least one laser element. The cap is fixed to the package so as to cover the recess. The cap includes a light-transmissive member having a lower surface facing the package and an upper surface, the lower surface having a light extraction region, and a light blocking film arranged on the lower surface so as to avoid the light extraction region, the light blocking film including a mark representing prescribed information. The at least one laser element is disposed in a space bounded by the cap and the package at a prescribed position such that the light extraction region is irradiated by laser light emitted from the at least one laser element. At least a part of the at least one laser element overlaps at least a part of the light blocking film in a top view.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.