Molded optical component, handling method, and assembling method
US6894849B2 · kind B2 · utility
3Cited by
5References
51Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 16, 2003 |
| Grant date | May 17, 2005 |
| Priority date | — |
| Expiry date | Oct 16, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P40/57
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An objective lens for use in an optical pickup apparatus for conducting recording and/or reproducing information for an optical information recording medium, has a lens section shaped in an approximate circle and including a flange section; and a connecting section integrally provided to the lens section. The objective lens satisfies the following conditional formulas:0.5≦A≦2.0, 0.3A≦B≦1.7A
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.