Programmable spectral source and design tool for 3D imaging using complementary bandpass filters
US9295375B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Sep 27, 2012 |
| Grant date | Mar 29, 2016 |
| Priority date | — |
| Expiry date | Apr 9, 2034 |
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, the illumination system includes a light source which outputs multi-spectral light; first and second light paths configured to transmit the multi-spectral light; and a digital mirror array (DMA) which receives the multi-spectral light and directs the multi-spectral light to a selected one of the first and second light paths. A controller controls the DMA to direct the multi-spectral light to the selected light path in accordance with a time-multiplexing scheme; and/or first and second complementary multiband bandpass filters (CMBF). The first CMBF may be situated in the first light path and the second CMBF may be situated in the second light path, where the first and second CMBFs filter the multi-spectral light incident thereupon to output filtered light.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.