Patent · US Active

Optical delay

US8390910B2 · kind B2 · utility

1Cited by

13References

24Claims

0Family size

Assignee

PICOMETRIX, LLC · US

Inventors

David Zimdars · Ann Arbor, US
Artur Chernovsky · Ann Arbor, US
Steven Williamson · Henrietta, US
Klaus Wolter · Dresden, DE

Key dates

Filing date	Sep 30, 2005
Grant date	Mar 5, 2013
Priority date	—
Expiry date	Apr 5, 2029

Classification

Technology area (CPC G)Physics
CPC primaryG01J3/0235
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A system for varying a delay of an optical beam has a rotatable wheel and a set of one or more prisms mounted about a circumference of the rotatable wheel. The set of one or more prisms are positioned to retroreflect the optical beam that passes approximately tangent to the rotatable wheel to cause a delay or phase shift to the beam as the rotatable wheel rotates.

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