Patent · US Expired

Methods of forming multiple phase light modulators

US5312513A · kind A · utility

372Cited by
2References
20Claims
0Family size

Assignee

Inventors

Key dates

Filing dateApr 3, 1992
Grant dateMay 17, 1994
Priority date
Expiry dateApr 3, 2012

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG03H2240/42
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

A method for multiple phase light modulation, said method comprising providing a pixel (20) having at least two modulating elements (22),(24). The method further comprising addressing said at least two modulating elements (22), (24) whereby light incident on said addressed element undergoes discrete phase changes between addressable states. The method further comprises resolving light from said at least two modulating elements (22), (24), into a response having at least three unique phases. Other devices, systems and methods are also disclosed.

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