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(19)

(11)

2 605 526

(13)

(51)

IPC

G02C7/04(2006-01-01)

(21) (22)

Application

2013119680/28, 2011-09-23

(24)

Start date

2011-09-23

(22)

Actual filing date

2011-09-23

(45)

Published

2016-12-20

(72)

Inventor

Roffman Dzheffri Kh.Zhjuben Filipp F.Menezesh Edgar V.Zherligan Per I.Klatterbak Timoti A.Chekhab Kkhaled A.

(73)

Holder

Dzhonson End Dzhonson Vizhn Kea, Ink.

SHIFTABLE PRESBYOPIC CONTACT LENS Russian patent published in 2016 - IPC G02C7/04

Abstract RU 2605526 C2

FIELD: optics.

SUBSTANCE: shiftable presbyopic contact lens comprises optical zone and pseudo-truncation, asymmetric relative to vertical meridian, wherein radial position of maximum pseudo-truncation thickness in any lens meridian is generally same, owing whereto arc is formed, representing part of concentric circle circumscribed around geometric center of lens.

EFFECT: technical result is improved presbyopia correction.

14 cl, 7 dwg

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RU 2 605 526 C2

Authors

Roffman Dzheffri Kh.

Zhjuben Filipp F.

Menezesh Edgar V.

Zherligan Per I.

Klatterbak Timoti A.

Chekhab Kkhaled A.

Dates

2016-12-20—Published

2011-09-23—Filed