JPS5536857A - Vari-focal lens - Google Patents
Vari-focal lensInfo
- 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
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
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)
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 |
-
1978
- 1978-09-06 JP JP11014778A patent/JPS5536857A/en active Pending
Cited By (11)
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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