Devices and methods for conveying and controlling light beams for lensless endo-microscopic imagery
US11428924B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Apr 4, 2017 |
| Grant date | Aug 30, 2022 |
| Priority date | — |
| Expiry date | Jul 26, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B27/0087
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
According to one aspect, the invention relates to a device for transporting and controlling light beams for endo-microscopic imaging without a lens on the distal side comprising a single-mode optical fibre bundle (40) on the distal side, wherein each single-mode optical fibre is intended to receive an elementary light source and to emit a light beam at a distal end; a single-mode optical fibre section (50) arranged at the distal end of the optical fibre bundle and intended to receive the light beams emitted by the single-mode optical fibres of the optical fibre bundle; an optical phase control device arranged on the side of the proximal end of the single-mode optical fibres. The optical phase control device comprises at least one spatial light modulator (30) adapted to apply a phase shift to each of the elementary beams and control means (60) for controlling the spatial light modulator allowing application of a phase shift to each of the elementary beams to form an illumination beam with a determined phase function at the distal end of the multimode optical fibre section (50).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.