Imaging lens and optical apparatus
US10310239B2 · kind B2 · utility
1Cited by
2References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 4, 2017 |
| Grant date | Jun 4, 2019 |
| Priority date | — |
| Expiry date | Dec 4, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B27/0101
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The imaging lens consists of, in order from a magnified side, a first lens having a positive refractive power, a second lens having a positive refractive power, a third lens having a negative refractive power, a fourth lens having a negative refractive power, a fifth lens having a positive refractive power, a sixth lens having a positive refractive power, and a seventh lens having a positive refractive power, and satisfies predetermined Conditional Expressions (1) and (2) relating to Abbe numbers of the second lens to the fifth lens.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.