Patent · US Active

Micro-mirror arrays

US9217861B2 · kind B2 · utility

0Cited by
4References
7Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJan 18, 2013
Grant dateDec 22, 2015
Priority date
Expiry dateJan 18, 2033

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH04N13/365
  • WIPO fieldAudio-visual technology
  • WIPO sectorElectrical engineering

Abstract

Micro-mirror arrays configured for use in a variable focal length lens are described herein. An example variable focal length lens comprises a micro-mirror array having a plurality of micro-mirror elements arranged in at least a first section and a second section. Each micro-mirror element has a tilt axis and comprises, on each of two opposing sides of the tilt axis, (i) at least one actuation electrode, (ii) at least one measurement electrode, and (iii) at least one stopper. Additionally, each micro-mirror element in the first section has a first tilt angle range, and each micro-mirror element in the second section has a second tilt angle range, with the first tilt angle range being less than the second tilt angle range.

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