Attachment for use with visual presenter
US8073323B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 21, 2010 |
| Grant date | Dec 6, 2011 |
| Priority date | — |
| Expiry date | Jan 29, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B21/362
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An attachment connects an eyepiece lens tube of microscope and an imaging lens tube of visual presenter and includes a cylindrical part loosely fittable through an opening with the eyepiece lens tube, a circular receiving surface which is formed on the cylindrical part and which a distal end of the imaging lens abuts, the receiving surface having a through hole, an indication line indicative of a center of the hole, a positioning piece standing along an outer circumferential edge of the receiving surface and having an inner circumferential surface with a curvature radius substantially equal to a curvature radius of outer circumference surface of the imaging lens tube, the outer circumferential surface of the imaging lens tube, and at least three screw members which are threadingly thrust radially through a circumferential surface of the cylindrical part into the cylindrical part, the screw members being arranged equiangularly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.