Zoom system for a microscope and method of operating such a zoom system
US8564880B2 · kind B2 · utility
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10References
8Claims
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Assignee
Inventor
Key dates
| Filing date | Mar 9, 2011 |
| Grant date | Oct 22, 2013 |
| Priority date | — |
| Expiry date | Feb 28, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B21/025
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The present invention relates to an afocal zoom system for a microscope with a shutter for controlling the depth of focus of the microscopic image produced by an object, wherein at least one shutter is disposed in front of the first lens group of the zoom system, viewed from the object, in the direction of the beam path passing through the zoom system, and/or at least one shutter is disposed on a lens group of the zoom system, the diameter of which can be varied in order to control the depth of focus, without causing vignetting of the edge beams.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.