Lens-barrel optical system and microscope apparatus
US5847866A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 8, 1996 |
| Grant date | Dec 8, 1998 |
| Priority date | — |
| Expiry date | Aug 8, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B21/0088
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A microscope apparatus having an objective optical system for condensing a beam emitted from a sample to form an intermediate image; a lens-barrel optical system for focusing a beam from the intermediate image to form an observation image; and an eyepiece optical system for enlarging and projecting a beam from the observation image; wherein the lens-barrel optical system includes a relay lens system for focusing a beam from the intermediate image formed by the objective optical system to form the observation image and guiding a beam from the observation image to the eyepiece optical system; and a beam rotating unit having a plurality of reflecting members three-dimensionally arranged in an optical path between the objective optical system and the observation image, wherein the plurality of reflecting members successively reflect the beam from the objective optical system to invert the beam about an optical axis of the relay lens system, thereby forming the observation image in the form of an inverted image. This arrangement permits the lens-barrel optical system to form the inverted observation image as focusing the beam from the inverted intermediate image in the compact, easy, an…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.