Laser scanning microscope
US9823456B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 13, 2016 |
| Grant date | Nov 21, 2017 |
| Priority date | — |
| Expiry date | Apr 13, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B26/105
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
In order to allow precise observation of a specimen at an observation point with a desired depth without changing the working distance of an objective optical system while employing a simple configuration, a laser scanning microscope according to the present invention includes an objective lens having a plurality of optical elements that are disposed with gaps therebetween in an optical-axis direction and that condense laser light emitted from a light source onto a specimen and also having an adjustment ring that allows changing of the focal point by moving the optical elements in the optical-axis direction; a scanner that has a galvanometer mirror capable of oscillating about a predetermined oscillation axis and that scans the laser light condensed onto the specimen by the objective lens in accordance with an oscillation angle of the galvanometer mirror; a light detecting unit that obtains image information of the specimen on the basis of return light returned from the specimen scanned with the laser light; and a scanner controlling unit that controls the oscillation angle of the galvanometer mirror so as to maintain an observation range of the specimen observed by the light detec…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.