Method of reducing optical coating absorptance
US4608272A · kind A · utility
2Cited by
2References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 20, 1980 |
| Grant date | Aug 26, 1986 |
| Priority date | — |
| Expiry date | Oct 20, 2000 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S148/093
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A laser or other light beam is directed onto an optical substrate while an optical coating is being vacuum deposited thereon. The laser has a wavelength at or near that at which a reduced absorptance of the coating is desired. In one embodiment, the substrate is heated electrically. Thin film optical coatings having a substantially lowered absorptance are made in this manner.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.