Video-type stereoscopic microscope including movable field stop frame and holder
US6288838A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 1, 2000 |
| Grant date | Sep 11, 2001 |
| Priority date | — |
| Expiry date | Jun 1, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B21/22
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Right and left image taking optical systems are respectively composed of an objective optical system forming an image of an object, and a relay optical system relaying the image formed by the objective optical system on the corresponding region on the CCD. At the surface of the image formed through each of the objective optical system, a field stop is disposed to shield a region on the CCD that does not correspond to itself. Each of the field stops is embedded in a field stop frame. The field stop frame penetrates the corresponding field stop holder in the vertical direction and is rotatably held. Each of the field stop holders is movably supported by a base frame such that it can slide in a direction perpendicular to the optical axes of both of the objective optical systems.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.