Microscope with aberration correcting function
US6563634B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 13, 2001 |
| Grant date | May 13, 2003 |
| Priority date | — |
| Expiry date | Sep 14, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B21/241
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A microscope according to the invention comprises an aberration correcting objective lens facing a specimen and having an aberration correcting lens correcting an aberration due to an error in the thickness of a cover, a Petri dish or a slide glass; a moving amount detector detecting moving amount of the aberration correcting lens; a focusing unit moving the specimen; a driver unit driving the focusing unit; and an arithmetic unit obtaining a defocus amount based on a moving amount detected by the moving amount detector. When the aberration correcting lens is moved, the specimen is put out of focus. On the basis of a defocus amount obtained by the arithmetic unit, the driver unit drives the focusing unit so that the lens may focus on the specimen.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.