Patent · US Active

Flexible lens assembly with variable focal length

US8390939B2 · kind B2 · utility

9Cited by

3References

14Claims

0Family size

Assignee

Polight AS · NO

Inventors

Lars Henriksen · Ny Frederiksdal, DK
Morten Eliassen · Sandefjord, NO
Vladimir Kartashov · Horten, NO
Jon Herman Ulvensoen · Åsgårdstrand, NO
Ib-Rune Johansen · Oslo, NO
Karl Henrik Haugholt · Oslo, NO
Dag Torstein Wang · Oslo, NO
Frode Tyholdt · Oslo, NO
Wilfred Edwin Booij · Ski, NO

Key dates

Filing date	Feb 12, 2008
Grant date	Mar 5, 2013
Priority date	—
Expiry date	Sep 16, 2028

Classification

Technology area (CPC G)Physics
CPC primaryG02B26/0875
WIPO fieldOptics
WIPO sectorInstruments

Abstract

The present invention is related to a lens assembly comprising a flexible lens body (10) inside a cavity bounded by a sidewall (11) and a first transparent cover (13), and a second transparent cover (14), wherein both covers (13,14) are in contact with respective surfaces of the lens body (10). Piezo electric elements (12) shapes the lens body (10) when activated, thereby adjusting the focal length of the lens assembly.

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