Patent · US Active

Optical device for high quality and compact camera module

US8260129B2 · kind B2 · utility

11Cited by

2References

6Claims

0Family size

Assignee

VARIOPTIC S.A. · FR

Inventors

Pierre Craen · Embourg, BE
Yves-Sebastien Boulin · Chilly-Mazarin, FR
Paul Christian Thomas Fuller · L'Essart Mador, FR

Key dates

Filing date	Dec 21, 2010
Grant date	Sep 4, 2012
Priority date	—
Expiry date	Jan 6, 2031

Classification

Technology area (CPC H)Electricity
CPC primaryH01L2924/0002
WIPO fieldOptics
WIPO sectorInstruments

Abstract

An optical device for a lens assembly of a camera module is disclosed. The optical device includes a liquid lens having at least one fixed lens and a transparent window, facing each other and delimiting, at least in part, an internal volume containing two immiscible liquids having different optical indices, and a first and a second electrode. The liquids form an interface moveable by application of a voltage between said electrodes. The optical device also includes a liquid lens holder, wherein the liquid lens holder has at least one electrical contact for contacting one electrode of the liquid lens, and at least one Z reference datum for aligning the fixed lens of the liquid lens with other optical elements of the lens assembly.

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