Endoscope
US10578855B2 · kind B2 · utility
1Cited by
4References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 20, 2017 |
| Grant date | Mar 3, 2020 |
| Priority date | — |
| Expiry date | Apr 20, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N23/555
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A lens having a quadrangular outer shape in a direction perpendicular to its center, an imaging element having a quadrangular outer shape in the direction perpendicular to the center axis, an element cover glass covering an imaging surface of the imaging element, a light guide placed outside at least one side of the lens and extending along the center axis, and a cylinder holder disposed between the lens and the light guide are disposed in a tip portion of an endoscope.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.