Title:
LIQUID CRYSTAL LENS
Document Type and Number:
Japanese Patent JP2017083764
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To drive a liquid crystal lens at a lower voltage than a prior art.SOLUTION: A liquid crystal lens 1 comprises: a first electrode 2 including a first electrode part 14 that includes a circular opening 14a and a second electrode part 15 that is arranged inside the opening 14a; a second electrode 4 that is arranged opposite to the first electrode 2; a liquid crystal layer 7 that is arranged between the first electrode 2 and second electrode 4; and power sources 16 to 18 that apply an AC voltage to the first electrode 2 and second electrode 4. The power sources 16 to 18 include: a first power source 16 that applies, to the first electrode part 14, a voltage having a first rectangular wave; a second power source 17 that applies, to the second electrode part 15, a voltage having a second rectangular wave with the same phase as that of the first rectangular wave of the first power source 16; and a third power source 18 that applies, to the second electrode 4, a voltage having a third rectangular wave with a phase different from that of the first rectangular wave and second rectangular wave by 180°.SELECTED DRAWING: Figure 1
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Inventors:
KIKUCHI KAZUYUKI
AKIMOTO TAKASHI
MURAKAMI TOMIO
AKIMOTO TAKASHI
MURAKAMI TOMIO
Application Number:
JP2015214446A
Publication Date:
May 18, 2017
Filing Date:
October 30, 2015
Export Citation:
Assignee:
NIPPON ELECTRIC GLASS CO
International Classes:
G02F1/13; G02B1/08; G02F1/1333
Domestic Patent References:
| JP2012098394A | 2012-05-24 | |||
| JP2010044266A | 2010-02-25 |
Attorney, Agent or Firm:
Kunihiko Shiromura
Tsuyoshi Kumano
Junya Yamamoto
Tsuyoshi Kumano
Junya Yamamoto