Adaptive photothermal lens
US9804424B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Mar 17, 2017 |
| Grant date | Oct 31, 2017 |
| Priority date | — |
| Expiry date | Mar 17, 2037 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S977/81
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A system having a micro lens array is provided. In some embodiments, the system includes a plurality of individual adaptive photo thermal lenses that have at least one cell, each cell provided with at least one photo absorbing particle; and a thermo-optical material in thermal contact with the cells; and at least one controllable light source for illuminating the photo absorbing particles, the light source having at least one spectral component which can be absorbed by the photo-absorbing particles, each cell being defined by the optical interaction area between the at least one photo absorbing particle and the at least one controllable light source, wherein the at least one controllable light source is controllable in one or more of wavelength, power, and polarisation, to locally modify the focal lengths of the individual adaptive photo thermal lenses having the cells.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.