Scanning objective lens, scanning probe and scanning endoscope
US8094354B2 · kind B2 · utility
2Cited by
9References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 21, 2010 |
| Grant date | Jan 10, 2012 |
| Priority date | — |
| Expiry date | Jul 21, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B23/243
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A scanning objective lens for scanning on an observation target with light emitted from an exit end face of an optical fiber moving on a curved plane formed to be convex on an objective lens side, including first and second lens groups each having a positive power, wherein the first lens group and the second lens group are arranged in this order from the optical fiber's exit end face side, and the scanning objective lens satisfies conditions:0.60<f1/f2<1.25 (1); and0.95<|R1a/R1b|<2.50 (2)
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.