Zoom objective lens of operating microscope
US10234669B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 29, 2014 |
| Grant date | Mar 19, 2019 |
| Priority date | — |
| Expiry date | Oct 12, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B21/0012
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Disclosed is a zoom objective lens (16) of an operating microscope (10), wherein the zoom objective lens (16) and a lens cone of the operating microscope (10) are provided along a same axis (24). The zoom objective lens (16) comprises a positive lens group (11) and a negative lens group (12) provided along a same axis (24). The positive lens group (11) is provided on an objective lens holder (14), and the negative lens group (12) is provided on a negative lens group holder (15) and directly faces the object under observation (G). The zoom objective lens (16) is changeably connected to a body (20) of the operating microscope through the objective lens holder (14) or a coupling holder, the negative lens group holder (15) is capable of moving in the optical axis (24) direction relative to the objective lens holder (14), and the position of the objective lens holder (14) relative to an illumination system (21) and an observation system (22) remains unchanged. The focus length of this zoom objective lens (16) can be continuously adjusted, and the zoom objective lens can be replaced as a whole. The structures of the illumination system (21) and the observation system (22) of the operatin…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.