Stereoendoscope wherein images having passed through plural incident pupils are transmitted by common relay optical systems
US6306082A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 1, 1998 |
| Grant date | Oct 23, 2001 |
| Priority date | — |
| Expiry date | Apr 1, 2018 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B1/00193
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The illuminating light transmitted by the light guide inserted through the elongate inserted section is projected out of the distal end surface of the inserted section. The illuminated objects pass through the respective non-superimposed pupils of the two objective lens systems arranged in parallel within the distal end section of the inserted section and their images, which are not equal to each other are formed on the focal surface. The respective images are transmitted to the rear side by one common relay lens system having a single optical axis. The transmitted final images are formed respectively on the image taking surfaces of the image taking devices. The respective images photoelectrically converted by the respective image taking devices are processed to be signals, are displayed in the monitor and are stereo-inspected through shutter spectacles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.