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JPS6459301A - Multi-focus lens - Google Patents

Multi-focus lens

Info

Publication number
JPS6459301A
JPS6459301A JP21713387A JP21713387A JPS6459301A JP S6459301 A JPS6459301 A JP S6459301A JP 21713387 A JP21713387 A JP 21713387A JP 21713387 A JP21713387 A JP 21713387A JP S6459301 A JPS6459301 A JP S6459301A
Authority
JP
Japan
Prior art keywords
lens
surface shape
prescribed
substance
viscoelastic
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
JP21713387A
Other languages
Japanese (ja)
Inventor
Isao Matsumura
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Canon Inc
Original Assignee
Canon Inc
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 Canon Inc filed Critical Canon Inc
Priority to JP21713387A priority Critical patent/JPS6459301A/en
Publication of JPS6459301A publication Critical patent/JPS6459301A/en
Pending legal-status Critical Current

Links

Landscapes

  • Eyeglasses (AREA)

Abstract

PURPOSE:To obtain a multi-focus lens whose focal distance can be changed easily, by constituting a lens system of a member which has wrapped in a viscoelastic substance and a liquid substance by an elastic optical material, and also, setting a guide surface having a prescribed surface shape, and allowing the lens surface to follow the prescribed surface shape by controlling the injection quantity of a packing member. CONSTITUTION:A multi-focus lens is constituted of shell parts 11, 12, 21 and 23 in which a lens system is formed by an elastic optical material, viscoelastic substances 14, 26 and 27, and a liquid substance which are enclosed in the shell parts, and also, a guide surface 15 having a prescribed surface shape. In such a state, by controlling the injection quantity of the viscoelastic substance 14, 26 and 27, or the liquid substance, the lens surface is allowed to follow the prescribed surface shape. In such a way, an external shape of the lens can be determined arbitrarily, and even when there are various shapes of frames such as spectacles, this lens can be applied.
JP21713387A 1987-08-31 1987-08-31 Multi-focus lens Pending JPS6459301A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP21713387A JPS6459301A (en) 1987-08-31 1987-08-31 Multi-focus lens

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP21713387A JPS6459301A (en) 1987-08-31 1987-08-31 Multi-focus lens

Publications (1)

Publication Number Publication Date
JPS6459301A true JPS6459301A (en) 1989-03-07

Family

ID=16699372

Family Applications (1)

Application Number Title Priority Date Filing Date
JP21713387A Pending JPS6459301A (en) 1987-08-31 1987-08-31 Multi-focus lens

Country Status (1)

Country Link
JP (1) JPS6459301A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009524838A (en) * 2005-10-28 2009-07-02 ジェイ アンド ジェイ テクノロジーズ リミテッド Variable focus lens
JP2009543148A (en) * 2006-07-10 2009-12-03 シルバー，ジョシュア，デビッド Variable focus lens and glasses
JP2010507827A (en) * 2006-10-23 2010-03-11 シルバー，ジョシュア，デビッド Variable focus lens and glasses

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009524838A (en) * 2005-10-28 2009-07-02 ジェイ アンド ジェイ テクノロジーズ リミテッド Variable focus lens
JP2009543148A (en) * 2006-07-10 2009-12-03 シルバー，ジョシュア，デビッド Variable focus lens and glasses
JP2010507827A (en) * 2006-10-23 2010-03-11 シルバー，ジョシュア，デビッド Variable focus lens and glasses

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