Axially symmetrical molded glass lens, mold assembly for an axially symmetrical molded glass lens, method for manufacturing a mold assembly for an axially symmetrical molded glass lens and method for manufacturing an axially symmetrical molded glass lens
US7483217B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 27, 2006 |
| Grant date | Jan 27, 2009 |
| Priority date | — |
| Expiry date | Nov 27, 2026 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P40/57
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An axially symmetrical molded glass lens has a central longitudinal axis, a lens surface, an annular intermediate area and a mounting flange area. The lens surface is axially symmetric around the central longitudinal axis and is curved. The annular intermediate area is curved and axially symmetric, is formed around the lens surface and has a radius of curvature having a continuously vary modulus that decreases as the radius of curvature approaches the annular intermediate area. The mounting flange area is formed around and connects smoothly to the annular intermediate area. The axially symmetrical molded glass lens has fine precision, a high production rate and a low cost.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.