Title:
制御可能な光学レンズ
Document Type and Number:
Japanese Patent JP2007531047
Kind Code:
A
Abstract:
A controllable optical lens system comprises a chamber housing first and second fluids, the interface between the fluids defining a lens surface. An electrode controls the shape of the lens surface and has first and second electrodes. The current supplied by a power source to the electrode arrangement is monitored, and the charge supplied is derived. The voltage on one of the electrodes of the electrode arrangement is also monitored. A desired lens power is used to derive a control value for controlling the total charge to be supplied to the electrode arrangement. The drive scheme is independent of some of the lens characteristics, and is more easily implemented than a feedback control system using capacitive sensing.
Inventors:
Riedenbaum, Kuhn Thehaev
Hendricks, Bernardus Harway
Kaipel, Stain
Hendricks, Bernardus Harway
Kaipel, Stain
Application Number:
JP2007505724A
Publication Date:
November 01, 2007
Filing Date:
March 29, 2005
Export Citation:
Assignee:
Koninklijke Philips Electronics N.V.
International Classes:
G02B26/00; G02B3/14; G02B26/02; G02B7/04; G02B7/09
Attorney, Agent or Firm:
Tadahiko Ito
Shinsuke Onuki
Tadashige Ito
Koichi Matsumoto
Shinsuke Onuki
Tadashige Ito
Koichi Matsumoto