Laser device
US7599414B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 8, 2005 |
| Grant date | Oct 6, 2009 |
| Priority date | — |
| Expiry date | Dec 25, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S5/02423
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A laser apparatus (100) has a semiconductor laser device (12a to 12c), coolant jetting means (24), and a heatsink (18a to 18c). The semiconductor laser device has a light output surface (50) for emitting laser light. The coolant jetting means has a coolant chamber (53) for accommodating a coolant, an inflow port (54) communicating with the coolant chamber, and a jet port (25) opposing the light output surface of the laser device. The heatsink has a laser mount surface (36) for mounting the semiconductor laser device, and a flow path (68a to 68c) where the coolant (56) jetted from the jet port flows in. When the coolant chamber is fed with the coolant, the jet port jets the coolant onto the light output surface of the semiconductor laser device. Since the light output surface is directly cooled by a jet flow of the coolant, cooling efficiency is excellent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.