Patent · US Expired

Method to improve an extinction ratio of an optical device

US7171068B2 · kind B2 · utility

9Cited by
9References
16Claims
0Family size

Assignee

Inventors

Key dates

Filing dateDec 20, 2002
Grant dateJan 30, 2007
Priority date
Expiry dateDec 20, 2022

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG02B6/356
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

A method to improve an extinction ratio of an optical device, the method includes positioning at least a majority of a plurality of micro-mirrors in an off-state position. A mirror assembly includes the plurality of micro-mirrors. The method also includes selectively positioning at least one of the plurality of micro-mirrors in an on-state position. In one particular embodiment, the at least one of the plurality of micro-mirrors positioned in the on-state position operates to improve an extinction ratio of an optical device.

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