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Patent Searching and Data


Title:
LIQUID CRYSTAL LENS AND PHOTOGRAPHIC DEVICE
Document Type and Number:
Japanese Patent JP2007140170
Kind Code:
A
Abstract:

To provide a liquid crystal lens capable of making a device small-sized and light-weight and emitting incident light in the optical axis direction, and in a direction other than the optical axis direction, and to provide a photographic device which is made small-sized and light-weight and can vary the irradiation position and the irradiation angle of auxiliary light.

The liquid crystal lens includes transparent electrodes 34 and 35, comprising a plurality of two-dimensionally divided liquid crystal pixels 34a and 35a; a transparent XY address selection part 38, comprising an X-direction selection circuit 38_1 and a Y-direction selection circuit 38_2; and a transparent XY address selection part 39, comprising an X-direction selection circuit 39_1 and a Y-direction selection circuit 39_2. The transparent XY address selection parts 38 and 39, successively will select only a part of the plurality of liquid crystal pixel cells 34a and 35a simultaneously and control the voltage application to selected liquid crystal pixels 34a and 35a, and refractive index distributions to transmission light are formed on transparent electrodes 34 and 35.


Inventors:
MISAWA TAKASHI
ENDO HIROSHI
KATO TAKASHI
MIYANO TAKASHI
Application Number:
JP2005334189A
Publication Date:
June 07, 2007
Filing Date:
November 18, 2005
Export Citation:
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Assignee:
FUJIFILM CORP
FUJINON CORP
International Classes:
G02F1/13; G02B7/04; G03B15/02; G03B15/03; G03B15/05; H04N5/232; H04N5/238; H04N101/00
Attorney, Agent or Firm:
Masaki Yamada
Yoshio Kosugi
Mikami Yui