KR101784351B1 - 가변형 광학 소자 및 이를 포함하는 광 기록/재생 장치 - Google Patents
가변형 광학 소자 및 이를 포함하는 광 기록/재생 장치 Download PDFInfo
- Publication number
- KR101784351B1 KR101784351B1 KR1020130090240A KR20130090240A KR101784351B1 KR 101784351 B1 KR101784351 B1 KR 101784351B1 KR 1020130090240 A KR1020130090240 A KR 1020130090240A KR 20130090240 A KR20130090240 A KR 20130090240A KR 101784351 B1 KR101784351 B1 KR 101784351B1
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- Prior art keywords
- electrode
- variable
- lens
- shape
- variable lens
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- 230000003287 optical effect Effects 0.000 title claims abstract description 47
- 230000001678 irradiating effect Effects 0.000 claims abstract description 4
- 229920001746 electroactive polymer Polymers 0.000 claims description 15
- 230000008859 change Effects 0.000 claims description 8
- 239000000463 material Substances 0.000 description 5
- 229920000642 polymer Polymers 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000004044 response Effects 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 239000004997 Liquid crystal elastomers (LCEs) Substances 0.000 description 2
- 239000002041 carbon nanotube Substances 0.000 description 2
- 229910021393 carbon nanotube Inorganic materials 0.000 description 2
- 239000002322 conducting polymer Substances 0.000 description 2
- 229920001940 conductive polymer Polymers 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 239000000806 elastomer Substances 0.000 description 2
- 230000010287 polarization Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 229920002595 Dielectric elastomer Polymers 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000000499 gel Substances 0.000 description 1
- 229920000831 ionic polymer Polymers 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000002905 metal composite material Substances 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/002—Recording, reproducing or erasing systems characterised by the shape or form of the carrier
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B3/00—Simple or compound lenses
- G02B3/12—Fluid-filled or evacuated lenses
- G02B3/14—Fluid-filled or evacuated lenses of variable focal length
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
- G11B7/135—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
- G11B7/1372—Lenses
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
- G11B7/135—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
- G11B7/1372—Lenses
- G11B7/1374—Objective lenses
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
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- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- General Physics & Mathematics (AREA)
- Optical Head (AREA)
- Mechanical Light Control Or Optical Switches (AREA)
Abstract
Description
도2는 도1의 가변형 광학 소자에 외부 전압이 인가된 경우를 나타내는 도면이다.
도3은 본 발명의 제2 실시예에 따른 가변형 광학 소자를 나타내는 개략도이다.
도4는 도3의 가변형 광학 소자에 외부 전압이 인가된 경우를 나타내는 도면이다.
도5는 본 발명의 제3 실시예에 따른 광 기록/재생 장치를 나타내는 개략도이다.
도6은 본 발명의 제3 실시예에 따른 광 기록/재생 장치에서 가변형 렌즈가 작동하는 모습을 나타내는 개략도이다.
110, 210, 321, 321a, 321b, 321c: 가변형 렌즈
120, 220, 323: 전극 300: 광 기록/재생 장치
310: 광원 320: 렌즈부
330: 제어부 D: 광 기록 매체
T: 트랙
Claims (11)
- 신축성 있는 가변형 렌즈 및
상기 가변형 렌즈에 구비되는 전극을 포함하고,
상기 전극에 전압이 인가되면, 상기 전극의 일측은 수축하고, 상기 전극의 타측은 팽창하여 상기 전극의 형상이 변하고,
상기 전극의 상기 형상의 변화에 의해 상기 가변형 렌즈의 형상이 변하는 가변형 광학 소자. - 삭제
- 제1항에서,
상기 전극은 상기 가변형 렌즈의 표면에 구비되는 가변형 광학 소자. - 제1항에서,
상기 전극은 상기 가변형 렌즈의 표면 전체에 구비되는 가변형 광학 소자. - 제1항에서,
상기 전극은 상기 가변형 렌즈의 내부에 구비되는 가변형 광학 소자. - 제1항에서,
상기 전극은 전기 활성 고분자(electroactive polymer)로 이루어진 가변형 광학 소자. - 광원에서 나오는 빛을 광 기록 매체에 조사하는 렌즈부를 포함하는 광 기록/재생 장치로서,
상기 렌즈부는,
신축성 있는 가변형 렌즈; 및
상기 가변형 렌즈에 구비되는 전극
을 포함하며,
상기 전극에 전압이 인가되면, 상기 전극의 일측은 수축하고, 상기 전극의 타측은 팽창하여 상기 전극의 형상이 변하고,
상기 전극의 상기 형상의 변화에 의해 상기 가변형 렌즈의 형상이 변하는 광 기록/재생 장치. - 제7항에서,
상기 렌즈부는 상기 가변형 렌즈를 복수로 포함하고,
상기 가변형 렌즈 각각은 상기 전극을 적어도 하나씩 구비하는 광 기록/재생 장치. - 제8항에서,
복수의 상기 가변형 렌즈들은 어레이(array) 구조를 이루는 광 기록/재생 장치. - 제9항에서,
상기 복수의 가변형 렌즈들은 개별적으로 제어되는 광 기록/재생 장치. - 삭제
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020130090240A KR101784351B1 (ko) | 2013-07-30 | 2013-07-30 | 가변형 광학 소자 및 이를 포함하는 광 기록/재생 장치 |
US14/327,030 US9091810B2 (en) | 2013-07-30 | 2014-07-09 | Shape-variable optical element and optical read/write device including the same |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020130090240A KR101784351B1 (ko) | 2013-07-30 | 2013-07-30 | 가변형 광학 소자 및 이를 포함하는 광 기록/재생 장치 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20150014693A KR20150014693A (ko) | 2015-02-09 |
KR101784351B1 true KR101784351B1 (ko) | 2017-10-12 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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KR1020130090240A Expired - Fee Related KR101784351B1 (ko) | 2013-07-30 | 2013-07-30 | 가변형 광학 소자 및 이를 포함하는 광 기록/재생 장치 |
Country Status (2)
Country | Link |
---|---|
US (1) | US9091810B2 (ko) |
KR (1) | KR101784351B1 (ko) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20150205096A1 (en) * | 2014-01-20 | 2015-07-23 | Electronics And Telecommunications Research Institute | Tunable lens system |
US10232133B2 (en) * | 2014-03-28 | 2019-03-19 | Electronics And Telecommunications Research Institute | Apparatus for imaging |
US10007034B2 (en) | 2015-09-09 | 2018-06-26 | Electronics And Telecommunications Research Institute | Auto focusing device |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20050030438A1 (en) * | 2003-08-08 | 2005-02-10 | Olympus Corporation | Variable optical-property element |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003029150A (ja) * | 2001-07-13 | 2003-01-29 | Olympus Optical Co Ltd | 光学特性可変光学素子を含む光学系及び光学装置 |
US7209280B2 (en) * | 2002-12-30 | 2007-04-24 | Koninklijke Philips Electronics N.V. | Optical device comprising a polymer actuator |
US6999484B2 (en) * | 2003-03-18 | 2006-02-14 | Eastman Kodak Company | Parallel access data storage system using a combination of VCSEL arrays and an integrated solid immersion lens array |
DE602004031830D1 (de) * | 2003-05-14 | 2011-04-28 | Koninkl Philips Electronics Nv | Variable linse |
EP1741096A1 (en) | 2004-04-20 | 2007-01-10 | Koninklijke Philips Electronics N.V. | Optical data storage system and method of optical recording and/or reading |
US7261736B1 (en) * | 2004-07-21 | 2007-08-28 | Massachusetts Eye & Ear Infirmary | Vision prosthesis with artificial muscle actuator |
JP2006256201A (ja) | 2005-03-18 | 2006-09-28 | Ricoh Co Ltd | 書込ユニットおよび画像形成装置 |
US7535626B2 (en) | 2006-06-06 | 2009-05-19 | Konica Minolta Opto, Inc. | Shape-variable optical element, optical device and image pickup apparatus |
US7697187B2 (en) | 2006-09-29 | 2010-04-13 | Sony Corporation | Electrowetting device and varifocal lens, optical pickup device, optical recording/reproduction device, droplet operation device, optical element, zoom lens, imaging device, light modulating device, and display device using the same |
US7719771B2 (en) | 2007-07-25 | 2010-05-18 | Hewlett-Packard Development Company, L.P. | Deformable optical element, methods of making and uses thereof |
US8282004B2 (en) | 2009-04-29 | 2012-10-09 | Hand Held Products, Inc. | Focusing apparatus and terminal comprising variable focus lens assembly |
KR101866873B1 (ko) * | 2011-08-09 | 2018-06-14 | 삼성전자주식회사 | 곡률 조절 소자 및 방법 |
-
2013
- 2013-07-30 KR KR1020130090240A patent/KR101784351B1/ko not_active Expired - Fee Related
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2014
- 2014-07-09 US US14/327,030 patent/US9091810B2/en active Active
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20050030438A1 (en) * | 2003-08-08 | 2005-02-10 | Olympus Corporation | Variable optical-property element |
Also Published As
Publication number | Publication date |
---|---|
US9091810B2 (en) | 2015-07-28 |
KR20150014693A (ko) | 2015-02-09 |
US20150036474A1 (en) | 2015-02-05 |
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