JPS5536857A - Vari-focal lens - Google Patents

Vari-focal lens

Info

Publication number
JPS5536857A
JPS5536857A JP11014778A JP11014778A JPS5536857A JP S5536857 A JPS5536857 A JP S5536857A JP 11014778 A JP11014778 A JP 11014778A JP 11014778 A JP11014778 A JP 11014778A JP S5536857 A JPS5536857 A JP S5536857A
Authority
JP
Japan
Prior art keywords
films
liquid
directions
deformation
region enclosed
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
JP11014778A
Other languages
Japanese (ja)
Inventor
Katsue Hasegawa
Yoshihiro Uno
Toshiyuki Furukawa
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP11014778A priority Critical patent/JPS5536857A/en
Publication of JPS5536857A publication Critical patent/JPS5536857A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To enhance the performance, by specifying the film to constitute a lens.
CONSTITUTION: Transparent elastic films 30, 31 oriented more than 100g/cm by tension applied uniformly in all directions are prepared, which are secured to a supporting frame 4 of thickness d so that a nearly perfect plane may be presented, and the region enclosed by both films 30, 31 is filled with a liquid 5 such as silicone oil. The liquid 5 is further supplied from a liquid supply device 7 into the region enclosed by the films 30, 31. Since the both films 30, 31 are preliminarily oriented uniformly in all directions, a property similar to that of a free surface having only a tension existing on the film surface appears, and deformation approximate to a spherical surface may be possible. At the same time, deformation of the films 30, 30 due to liquid quantity may be extremely small.
COPYRIGHT: (C)1980,JPO&Japio
JP11014778A 1978-09-06 1978-09-06 Vari-focal lens Pending JPS5536857A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11014778A JPS5536857A (en) 1978-09-06 1978-09-06 Vari-focal lens

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11014778A JPS5536857A (en) 1978-09-06 1978-09-06 Vari-focal lens

Publications (1)

Publication Number Publication Date
JPS5536857A true JPS5536857A (en) 1980-03-14

Family

ID=14528229

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11014778A Pending JPS5536857A (en) 1978-09-06 1978-09-06 Vari-focal lens

Country Status (1)

Country Link
JP (1) JPS5536857A (en)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6249302A (en) * 1985-04-16 1987-03-04 Canon Inc Optical element having variable focus
US4783141A (en) * 1984-03-14 1988-11-08 Canon Kabushiki Kaisha Array lens
US5124734A (en) * 1987-07-14 1992-06-23 Daniel Barnea Opthalmic lens
US5229885A (en) * 1991-09-03 1993-07-20 Quaglia Lawrence D Infinitely variable focal power lens units precisely matched to varying distances by radar and electronics
US5233470A (en) * 1992-12-30 1993-08-03 Hsin Yi Foundation Variable lens assembly
US5574598A (en) * 1993-08-05 1996-11-12 Nippondenso Co., Ltd. Varifocal lens
US6014259A (en) * 1995-06-07 2000-01-11 Wohlstadter; Jacob N. Three dimensional imaging system
JP2007086143A (en) * 2005-09-20 2007-04-05 Sony Corp Variable focus lens and variable focus mirror
US7536093B2 (en) 2004-09-30 2009-05-19 Casio Computer Co., Ltd. Camera which incorporates a lens unit that can program an optical property and a corresponding method
US7536092B2 (en) 2004-09-30 2009-05-19 Casio Computer Co., Ltd. Camera which incorporates a lens unit that can program an optical property comprising a selection unit
JPWO2014181419A1 (en) * 2013-05-09 2017-02-23 国立大学法人 東京大学 Variable focus lens

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4783141A (en) * 1984-03-14 1988-11-08 Canon Kabushiki Kaisha Array lens
JPS6249302A (en) * 1985-04-16 1987-03-04 Canon Inc Optical element having variable focus
US5124734A (en) * 1987-07-14 1992-06-23 Daniel Barnea Opthalmic lens
US5229885A (en) * 1991-09-03 1993-07-20 Quaglia Lawrence D Infinitely variable focal power lens units precisely matched to varying distances by radar and electronics
US5233470A (en) * 1992-12-30 1993-08-03 Hsin Yi Foundation Variable lens assembly
US5574598A (en) * 1993-08-05 1996-11-12 Nippondenso Co., Ltd. Varifocal lens
US6014259A (en) * 1995-06-07 2000-01-11 Wohlstadter; Jacob N. Three dimensional imaging system
US7536093B2 (en) 2004-09-30 2009-05-19 Casio Computer Co., Ltd. Camera which incorporates a lens unit that can program an optical property and a corresponding method
US7536092B2 (en) 2004-09-30 2009-05-19 Casio Computer Co., Ltd. Camera which incorporates a lens unit that can program an optical property comprising a selection unit
JP2007086143A (en) * 2005-09-20 2007-04-05 Sony Corp Variable focus lens and variable focus mirror
JPWO2014181419A1 (en) * 2013-05-09 2017-02-23 国立大学法人 東京大学 Variable focus lens

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