Patent · US Active

Systems and methods for managing incoherent laser beams

US11442335B2 · kind B2 · utility

0Cited by

9References

20Claims

0Family size

Assignee

Q.ANT GMBH · DE

Inventors

Klaus Mantel · Baiersdorf, DE
Michael Foertsch · Wien, AT

Key dates

Filing date	Apr 23, 2020
Grant date	Sep 13, 2022
Priority date	—
Expiry date	Jul 15, 2040

Classification

Technology area (CPC G)Physics
CPC primaryG02F1/3503
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

A laser light source for producing incoherent laser beams, in particular for speckle-free imaging and/or projection, with at least two different wavelengths, preferably with three different wavelengths, includes: at least two optical devices, in particular at least two optical parametric oscillators, which each have a nonlinear optical medium for respectively producing a signal beam and an idler beam, and a superposition device configured to respectively superpose either the signal beam or the idler beam of each of the at least two optical devices for producing an incoherent laser beam with the at least two different wavelengths. A laser projector for producing an image, in particular a speckle-free image, on a projection surface, can include such a laser light source.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.