Dynamic aperture positioning for stereo endoscopic cameras
US10754241B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 17, 2019 |
| Grant date | Aug 25, 2020 |
| Priority date | — |
| Expiry date | Jun 17, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N13/225
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A stereoscopic endoscope that includes at least one image sensor, one or more processing devices, and a display device. The image sensors sense a pair of stereo images, based on capturing light passing through apertures electronically defined at a first aperture location and a second aperture location, respectively, on a liquid crystal layer within the endoscope. The size of each aperture, spacing between the apertures, and polarization state associated with each aperture are controlled using corresponding control signals provided to the liquid crystal layer. The image data captured through the apertures is used to generate control signals representing one or more views of a surgical scene. The views are then presented on a display device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.