Video microscope
US5691840A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 8, 1995 |
| Grant date | Nov 25, 1997 |
| Priority date | — |
| Expiry date | Nov 8, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B21/0004
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Described in this invention is a microscope that can examine a specimen of an anisotropic property regardless of the specimen being thin or thick, i.e., opaque or transparent. The video microscope includes a first light guide for a transmission method; a first polarizer for partially polarizing the light from the first light source, arranged beneath a stage on which a specimen is placed; a second light guide for reflection method; a second polarizer for partially polarizing the light from the second light source, provided in the second light guide; a lens assembly admitting the polarized light from the first or second polarizer and including an objective, an analyzer, and a compensating plate; a beam splitter for reflecting the polarized light from the second polarizer to an object provided in the lens assembly; a CCD mount in which CCD is provided, mounted on the lens assembly; and height and focus adjustment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.