Method and apparatus for molding optical components
US4569807A · kind A · utility
25Cited by
3References
24Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 15, 1983 |
| Grant date | Feb 11, 1986 |
| Priority date | — |
| Expiry date | Jul 15, 2003 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S425/808
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
As in the conventional manner for molding an optical component, a molding cavity is used in combination with a relief chamber with which the molding cavity can selectively communicate. There is no communication between the relief chamber and the molding cavity while the latter is filled. The molding cavity is then placed in communication with the relief chamber. Subsequently, relative displacement of the relief chamber and the molding cavity parallel to the axis of the combination interrupts such communication. The optical component thus molded may be of any kind, such as an optical lens, specifically an ophthalmic lens.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.