Title:
レンズ、レンズブランクおよびアイウェア
Document Type and Number:
Japanese Patent JP6746724
Kind Code:
B2
Abstract:
Provided is a lens for eyewear. The lens comprises: a first transparent substrate that includes a diffraction region in which a plurality of convex strips and groove sections are formed in alternation in concentric circles; a second transparent substrate that faces the first transparent substrate in a prescribed direction; a liquid crystal layer disposed in a space present between the diffraction region and the second transparent substrate; and a first transparent electrode and a second transparent electrode that impress a voltage on the liquid crystal layer. The diffraction region comprises a first diffraction region and a second diffraction region that is disposed in at least part of a portion different from the first diffraction region. The space comprises: groove-shaped spaces present between the groove sections and the second transparent substrate; and a communicating space disposed between at least part of the convex shapes of the second diffraction region and the second transparent substrate, and communicating between neighboring groove-shaped spaces. Due to this configuration, a lens for eyewear is provided in which a liquid crystal material can be suitably disposed between a first transparent substrate and a second transparent substrate.
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Inventors:
Yoshinobu Okada
Eiichiro Hikosaka
Toshifumi Hino
Akifumi Aono
Akihiro Muramatsu
Eiichiro Hikosaka
Toshifumi Hino
Akifumi Aono
Akihiro Muramatsu
Application Number:
JP2018566747A
Publication Date:
August 26, 2020
Filing Date:
October 04, 2017
Export Citation:
Assignee:
Mitsui Chemicals, Inc.
International Classes:
G02C7/02; G02B3/08; G02B3/14; G02B5/18; G02F1/13
Domestic Patent References:
| JP2010532496A | ||||
| JP2011516927A | ||||
| JP2012123041A | ||||
| JP2012128106A | ||||
| JP2015515640A | ||||
| JP2666907B2 |
Foreign References:
| WO2017136310A1 | ||||
| WO2018061902A1 |
Attorney, Agent or Firm:
Washeda International Patent Office