Frontal light diffusing device for use in photoimmunotherapy
US10908341B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 3, 2019 |
| Grant date | Feb 2, 2021 |
| Priority date | — |
| Expiry date | Dec 3, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/241
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The present invention provides a frontal light diffusing device comprising a non-circular core fiber section having a proximal end and a distal end, and a lens; wherein fiber core of the non-circular core section has a “top hat” core irradiance distribution and the frontal light diffusing device provides a “top hat” spatial irradiance distribution at a targeted location. The present invention further provides a frontal light diffusing device comprising an optical fiber and a collimation lens assembly wherein the collimation lens assembly includes a variable aperture that blocks portions of light outcoupled from the optical fiber thereby allowing only a central portion of the light to exit through the variable aperture resulting in a flat irradiance distribution.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.