Patent · US Active

Waveguide calibration

US11709325B1 · kind B1 · utility

0Cited by

4References

17Claims

0Family size

Assignee

MLOptic Corp. · US

Inventors

Jiang He · Beijing, CN
Wei Zhou · Sammamish, US
Wei Wang · Nanjing, CN

Key dates

Filing date	Jan 6, 2023
Grant date	Jul 25, 2023
Priority date	—
Expiry date	Jan 6, 2043

Classification

Technology area (CPC G)Physics
CPC primaryG02B2027/0178
WIPO fieldOptics
WIPO sectorInstruments

Abstract

A method for aligning the projection of a first light source with an in-coupler of a waveguide, the method including supplying a secondary light source through an optical path of the waveguide to exit at the in-coupler of the waveguide as an exit light; determining the concentricity of the exit light with respect to the first light source; and improving the concentricity of the exit light with respect to the first light source by adjusting the positioning of the first light source such that the exit light becomes concentric with the projection of the first light source.

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