Method for manufacture of optical element
US6652781B2 · kind B2 · utility
1Cited by
7References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 5, 2001 |
| Grant date | Nov 25, 2003 |
| Priority date | — |
| Expiry date | May 19, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03F7/70241
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
In a method for manufacture of an optical element, a thin film is formed on a surface, such as a grating surface, an aspherical surface or a spherical surface, formed on a mold. Then, a substrate is bonded to the thin film. Subsequently, the thin film and the substrate are separated from the mold.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.