Programmable spectral source and design tool for 3D imaging using complementary bandpass filters
US9713419B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 28, 2016 |
| Grant date | Jul 25, 2017 |
| Priority date | — |
| Expiry date | Mar 28, 2036 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B1/0655
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An endoscopic illumination system for illuminating a subject for stereoscopic image capture, includes a light source which outputs light; a first complementary multiband bandpass filter (CMBF) and a second CMBF, the first and second CMBFs being situated in first and second light paths, respectively, where the first CMBF and the second CMBF filter the light incident thereupon to output filtered light; and a camera which captures video images of the subject and generates corresponding video information, the camera receiving light reflected from the subject and passing through a pupil CMBF pair and a detection lens. The pupil CMBF includes a first pupil CMBF and a second pupil CMBF, the first pupil CMBF being identical to the first CMBF and the second pupil CMBF being identical to the second CMBF, and the detection lens includes one unpartitioned section that covers both the first pupil CMBF and the second pupil CMBF.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.