Objective lens system for microscopes
US4624535A · kind A · utility
7Cited by
5References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 5, 1984 |
| Grant date | Nov 25, 1986 |
| Priority date | — |
| Expiry date | Nov 5, 2004 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B21/02
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An objective lens system for microscopes having a long working distance and aberrations favorably corrected to peripheral portion of visual field comprising a first meniscus lens component, a second positive lens component, a third cemented doublet consisting of a positive lens element and a nagative lens element, a fourth positive lens component and a fifth meniscus lens component.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.