Endoscope objective lens and method of assembly
US7885010B1 · kind B1 · utility
3Cited by
9References
28Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 14, 2008 |
| Grant date | Feb 8, 2011 |
| Priority date | — |
| Expiry date | Nov 27, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49826
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A wide field video endoscope objective and method of assembly the objective including four groups with five lenses, a mechanical housing containing the entire image forming elements, a aperture stop, a centering member and a retainer sleeve. The centering member is at first centered over the photo sensitive area of the chip and bonded to the surface of the cover glass. The retainer sleeve slides over said centering member and is glued to the centering member and the housing of the video chip. The objective housing with the optical elements is screwed on the centering member to adjust for focusing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.