Method of forming a precision glass mold and article
US4897101A · kind A · utility
8Cited by
15References
36Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 8, 1989 |
| Grant date | Jan 30, 1990 |
| Priority date | — |
| Expiry date | Mar 8, 2009 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03B2215/72
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method of forming precision glass molds suitable for molding glass optical elements or lenses is disclosed. The glass molds define first and second opposed optical molding surfaces. Each master is formed by defining a master cavity adapted to form a first glass mold. A quantity of glass mold material is disposed within such cavity and molded in conformation with said master. The molding surface of each such glass mold defines an optical surface to be subsequently formed on an optical element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.