KR100684039B1 - 렌즈 구동기구 - Google Patents
렌즈 구동기구 Download PDFInfo
- Publication number
- KR100684039B1 KR100684039B1 KR1020040071717A KR20040071717A KR100684039B1 KR 100684039 B1 KR100684039 B1 KR 100684039B1 KR 1020040071717 A KR1020040071717 A KR 1020040071717A KR 20040071717 A KR20040071717 A KR 20040071717A KR 100684039 B1 KR100684039 B1 KR 100684039B1
- Authority
- KR
- South Korea
- Prior art keywords
- lens
- moving
- permanent magnet
- magnetic
- stopper
- Prior art date
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Images
Classifications
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
- G02B7/04—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification
- G02B7/10—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification by relative axial movement of several lenses, e.g. of varifocal objective lens
- G02B7/105—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification by relative axial movement of several lenses, e.g. of varifocal objective lens with movable lens means specially adapted for focusing at close distances
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/001—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras
- G02B13/0015—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design
- G02B13/002—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design having at least one aspherical surface
- G02B13/003—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design having at least one aspherical surface having two lenses
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/001—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras
- G02B13/009—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras having zoom function
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K41/00—Propulsion systems in which a rigid body is moved along a path due to dynamo-electric interaction between the body and a magnetic field travelling along the path
- H02K41/02—Linear motors; Sectional motors
- H02K41/035—DC motors; Unipolar motors
- H02K41/0352—Unipolar motors
- H02K41/0354—Lorentz force motors, e.g. voice coil motors
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B2205/00—Adjustment of optical system relative to image or object surface other than for focusing
- G03B2205/0053—Driving means for the movement of one or more optical element
- G03B2205/0069—Driving means for the movement of one or more optical element using electromagnetic actuators, e.g. voice coils
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Electromagnetism (AREA)
- Power Engineering (AREA)
- Lens Barrels (AREA)
Abstract
Description
20' : 제2이동렌즈 조립체
Claims (6)
- 전류가 공급됨에 따라 자력을 발생시키는 구동코일과; 영구자석과 렌즈로 이루어지는 제1이동렌즈 조립체와; 상기 제1이동렌즈 조립체의 영구자석과 대향하는 면이 반대극성을 가지도록 배치된 영구자석과 렌즈로 이루어지는 제2이동렌즈 조립체와; 제1렌즈 지지위치(P1)을 결정하는 제1 스토퍼와, 상기 구동코일의 위치에 따라 제2렌즈 지지위치(P2)를 구성하는 제2스토퍼면을 구비한 렌즈 경통과; 제1,2 이동렌즈 조립체를 각각 렌즈 경통의 제1 스토퍼로 탄성지지하는 탄성부재를 포함하여 이루어진 것을 특징으로 하는 렌즈 구동기구.
- 제1항에 있어서, 상기 탄성부재는 제1이동렌즈 조립체와 제2이동렌즈 조립체사이에 위치한 코일 스프링인 것을 특징으로 하는 렌즈구동기구.
- 제1항에 있어서, 상기 탄성부재는 외부 링과 내부 링 및 상기 내부 링과 외부 링을 연결하는 브릿지 부재를 구비한 판상 스프링으로 이루어지며, 상기 제1 스토퍼에 판상 스프링의 외부 링을 부착하고, 내부 링에 제1,2 이동렌즈 조립체를 부착한 것을 특징으로 하는 렌즈구동기구.
- 제1항 내지 제3항 중 어느 한 항 에 있어서, 제2렌즈 지지위치에 상기 영구자석이 자기결합을 이룰 수 있는 자성체를 구비한 것을 특징으로 하는 렌즈구동기구.
- 제4항에 있어서, 상기 자성체는 구동코일의 주위를 둘러싼 자성체 요크인 것을 특징으로 하는 렌즈구동기구.
- 제4항에 있어서, 상기 자성체는 자성체 판인 것을 특징으로 하는 렌즈구동기구.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020040071717A KR100684039B1 (ko) | 2004-09-08 | 2004-09-08 | 렌즈 구동기구 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020040071717A KR100684039B1 (ko) | 2004-09-08 | 2004-09-08 | 렌즈 구동기구 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20060022922A KR20060022922A (ko) | 2006-03-13 |
KR100684039B1 true KR100684039B1 (ko) | 2007-02-16 |
Family
ID=37129283
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020040071717A KR100684039B1 (ko) | 2004-09-08 | 2004-09-08 | 렌즈 구동기구 |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR100684039B1 (ko) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102124390B (zh) * | 2009-07-31 | 2013-03-27 | 香港应用科技研究院有限公司 | 小型成像装置及其制作方法 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR910005642B1 (en) * | 1983-08-03 | 1991-08-01 | Sony Co Ltd | Optical pick-up unit |
JP2003199312A (ja) | 2001-12-26 | 2003-07-11 | Showa Electric Wire & Cable Co Ltd | 内ヨーク磁石型リニアモータ |
JP2004138992A (ja) | 2002-10-18 | 2004-05-13 | Shicoh Eng Co Ltd | レンズ駆動装置 |
-
2004
- 2004-09-08 KR KR1020040071717A patent/KR100684039B1/ko active IP Right Grant
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR910005642B1 (en) * | 1983-08-03 | 1991-08-01 | Sony Co Ltd | Optical pick-up unit |
JP2003199312A (ja) | 2001-12-26 | 2003-07-11 | Showa Electric Wire & Cable Co Ltd | 内ヨーク磁石型リニアモータ |
JP2004138992A (ja) | 2002-10-18 | 2004-05-13 | Shicoh Eng Co Ltd | レンズ駆動装置 |
Also Published As
Publication number | Publication date |
---|---|
KR20060022922A (ko) | 2006-03-13 |
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