Objective lens system
US4938573A · kind A · utility
19Cited by
0References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 3, 1989 |
| Grant date | Jul 3, 1990 |
| Priority date | — |
| Expiry date | Jul 3, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B13/18
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An objective lens system consisting of a single lens component, comprising at least one aspherical surface and having aberrations corrected favorably within a range up to relatively high image height.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.