Method for smoothing a surface of an optical element with laser
US8048344B2 · kind B2 · utility
1Cited by
1References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 28, 2008 |
| Grant date | Nov 1, 2011 |
| Priority date | — |
| Expiry date | Jul 2, 2029 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29D11/00
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The present invention discloses a method for smoothing a surface of an optical element with a laser. Firstly, an optical element having a rough surface is provided. Next, the rough surface of the optical element is illuminated with a laser. The rough surface absorbs laser energy and melts into a liquid. The liquid is stretched and planarized by the surface tension of the rough surface and then solidifies into a smooth surface. The present invention can smooth the surface of an optical element and promote the resonant or waveguide performance of the optical element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.