Temperature compensated laser focusing optics
US7680161B2 · kind B2 · utility
3Cited by
12References
26Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 9, 2005 |
| Grant date | Mar 16, 2010 |
| Priority date | — |
| Expiry date | Feb 14, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S5/02253
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A laser source assembly comprises a laser diode for generating a laser beam and a focusing lens for focusing the light beam. A spacer is provided for keeping the diode and the lens at a predetermined distance, and is made of a material of low expansion coefficient. Preferably, the subassembly constituted of the diode, the spacer and the lens is housed in a case made of another material that may have a higher expansion coefficient. A resilient element is provided to continuously keep the diode and the lens abutting on the opposite ends of the spacer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.