RU94019588A - Artificial crystalline lens - Google Patents

Artificial crystalline lens

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Publication number
RU94019588A
RU94019588A RU94019588/14A RU94019588A RU94019588A RU 94019588 A RU94019588 A RU 94019588A RU 94019588/14 A RU94019588/14 A RU 94019588/14A RU 94019588 A RU94019588 A RU 94019588A RU 94019588 A RU94019588 A RU 94019588A
Authority
RU
Russia
Prior art keywords
lens
lenses
positive
optical member
optical
Prior art date
Application number
RU94019588/14A
Other languages
Russian (ru)
Inventor
М.Н. Сокольский
Л.М. Лапо
В.Е. Агеев
Original Assignee
Акционерное общество "Оптотехника"
Акционерное общество "Оптотехника", Санкт-Петербург
Санкт-Петербург
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Акционерное общество "Оптотехника", Акционерное общество "Оптотехника", Санкт-Петербург, Санкт-Петербург filed Critical Акционерное общество "Оптотехника"
Priority to RU94019588/14A priority Critical patent/RU94019588A/en
Publication of RU94019588A publication Critical patent/RU94019588A/en

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Abstract

FIELD: ophthalmology. SUBSTANCE: artificial CRYSTALLINE lens has optical member which is made of two lenses. The optical member is placed into air-tight case. Lenses of optical member are separated by air space. The first lens has negative focal power. Radius of curvature of the second surface of the lens is positive and equals to 0.2-0.8 focal distance of optical member. The second lens is positive and has focal power being equal to 1.1-3.0 focal power of the member. EFFECT: simplified design; improved depth of focus.

Claims (1)

Предлагаемое изобретение относится к области офтальмологии и может быть использовано в микрохирургии глаза при замене пораженного естественного хрусталика искусственным хрусталиком. Задачей изобретения является упрощение конструкции с одновременным увеличением глубины резкости изображения, даваемого его оптической системой. Для решения этой задачи предложен искусственный хрусталик, включающий оптический элемент, состоящий из двух линз, оптический элемент помещен в герметичный корпус, линзы оптического элемента разделены между собой воздушным промежутком, при этом первая линза выполнена с отрицательный оптической силой, радиус кривизны ее второй поверхности положителен и равен 0,2-0,8 фокусного расстояния оптического элемента, вторая линза - положительная с оптической силой, равной 1,1-3,0 оптической силы элемента.The present invention relates to the field of ophthalmology and can be used in eye microsurgery when replacing an affected natural lens with an artificial lens. The objective of the invention is to simplify the design while increasing the depth of field of the image given by its optical system. To solve this problem, an artificial lens has been proposed, which includes an optical element consisting of two lenses, the optical element is placed in a sealed enclosure, the lenses of the optical element are separated by an air gap, while the first lens is made with negative optical power, the radius of curvature of its second surface is positive and equal to 0.2-0.8 of the focal length of the optical element, the second lens is positive with an optical power of 1.1-3.0 optical power of the element.
RU94019588/14A 1994-05-23 1994-05-23 Artificial crystalline lens RU94019588A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU94019588/14A RU94019588A (en) 1994-05-23 1994-05-23 Artificial crystalline lens

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU94019588/14A RU94019588A (en) 1994-05-23 1994-05-23 Artificial crystalline lens

Publications (1)

Publication Number Publication Date
RU94019588A true RU94019588A (en) 1996-04-27

Family

ID=48447735

Family Applications (1)

Application Number Title Priority Date Filing Date
RU94019588/14A RU94019588A (en) 1994-05-23 1994-05-23 Artificial crystalline lens

Country Status (1)

Country Link
RU (1) RU94019588A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2509525C2 (en) * 2009-02-19 2014-03-20 Алькон Рисерч, Лтд. Intraocular lens alignment using cornea centre

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2509525C2 (en) * 2009-02-19 2014-03-20 Алькон Рисерч, Лтд. Intraocular lens alignment using cornea centre

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