Title:
可変屈折率を有する累進眼鏡レンズ並びにその設計及び製造の方法
Document Type and Number:
Japanese Patent JP7252311
Kind Code:
B2
Abstract:
A progressive spectacle lens has a front face and a rear face and a uniform substrate with a locally varying refractive index. The front face and/or the rear face of the substrate is formed as a free-form surface and carries only functional coatings, if any. The refractive index varies (a) only in a first spatial dimension and in a second spatial dimension and is constant in a third spatial dimension, a distribution of the refractive being neither point-symmetrical nor axis symmetrical, or (b) in a first spatial dimension and in a second spatial dimension and in a third spatial dimension, a distribution of the refractive index being neither point-symmetrical nor axis symmetrical, or (c) in a first spatial dimension and in a second spatial dimension and in a third spatial dimension, a distribution of the refractive index not being point-symmetrical or axis symmetrical at all.
Inventors:
Gerhard Kölsch
Christoph Menke
Helmut Veet Shok
Christoph Menke
Helmut Veet Shok
Application Number:
JP2021502931A
Publication Date:
April 04, 2023
Filing Date:
July 19, 2019
Export Citation:
Assignee:
Carl Zeiss Vision International Gamem Beher
International Classes:
G02C7/06
Domestic Patent References:
| JP2008537177A | ||||
| JP2016525967A | ||||
| JP2007511796A | ||||
| JP2016537177A |
Foreign References:
| WO2003102671A1 | ||||
| WO2018022765A1 | ||||
| WO2018022042A1 |
Attorney, Agent or Firm:
Kenji Sugimura
Mitsutsugu Sugimura
Kenichi Shimoji
Mitsutsugu Sugimura
Kenichi Shimoji
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