Patent · US Active

Speckle reduction instrument

US10690933B2 · kind B2 · utility

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0References

16Claims

0Family size

Assignee

The Government of the United States of America, as represented by the Secretary of the Navy · US

Inventors

Robert Furstenberg · Burke, US
Chris Kendziora · Burke, US
R. Andrew McGill · Lorton, US

Key dates

Filing date	Apr 6, 2018
Grant date	Jun 23, 2020
Priority date	—
Expiry date	Apr 6, 2038

Classification

Technology area (CPC G)Physics
CPC primaryG02B27/0994
WIPO fieldOptics
WIPO sectorInstruments

Abstract

A speckle reduction instrument having a parabolic reflector and flat mirror to form a cavity-based unit. Laser light is collected and bounced around the cavity hitting a diffuser surface multiple times. The laser light that is highly coherent is converted into less-coherent but still bright light suitable for illumination in microscopes and other devices. Also disclosed is the related method for reducing speckle.

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