KR100616616B1 - 카메라 모듈의 자동 초점조절 광학계 - Google Patents
카메라 모듈의 자동 초점조절 광학계 Download PDFInfo
- Publication number
- KR100616616B1 KR100616616B1 KR1020040069726A KR20040069726A KR100616616B1 KR 100616616 B1 KR100616616 B1 KR 100616616B1 KR 1020040069726 A KR1020040069726 A KR 1020040069726A KR 20040069726 A KR20040069726 A KR 20040069726A KR 100616616 B1 KR100616616 B1 KR 100616616B1
- Authority
- KR
- South Korea
- Prior art keywords
- lens
- lens group
- optical system
- power
- camera module
- 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.)
- Expired - Fee Related
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Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/18—Optical objectives specially designed for the purposes specified below with lenses having one or more non-spherical faces, e.g. for reducing geometrical aberration
-
- 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
- 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
- G02B13/0035—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 three lenses
-
- 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
- G02B13/0055—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras employing a special optical element
- G02B13/0075—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras employing a special optical element having an element with variable optical properties
-
- 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
- G03B13/00—Viewfinders; Focusing aids for cameras; Means for focusing for cameras; Autofocus systems for cameras
- G03B13/32—Means for focusing
- G03B13/34—Power focusing
- G03B13/36—Autofocus systems
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/57—Mechanical or electrical details of cameras or camera modules specially adapted for being embedded in other devices
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Lenses (AREA)
- Automatic Focus Adjustment (AREA)
Abstract
Description
| 면 번호 | 곡률반경(r) | 두께 또는 거리(t) | 굴절률(nd) |
| 1 | ∞ | 0.100000 | |
| * 2 | 2.73318 | 0.850000 | 1.530 |
| 3 | ∞ | 0.357000 | 1.350 |
| ※ 4 | -14.10900 | 0.143000 | 1.450 |
| 5 | ∞ | 0.550000 | 1.530 |
| * 6 | -21.51935 | 0.748070 | |
| * 7 | -0.96679 | 0.650000 | 1.608 |
| * 8 | -1.04457 | 0.100000 | |
| * 9 | 4.05002 | 1.320015 | 1.530 |
| * 10 | 2.24942 | 0.822980 | |
| 11 | ∞ | 0.550000 | 1.517 |
| 12 | ∞ | 0.677388 | |
| 상면 | ∞ | 0.000000 |
| 물체의 거리 | 제 4면의 곡률 반경 |
| 무한대(∞) | -14.109 |
| 50㎝ | -27.959 |
| 10㎝ | 31.368 |
| 제2면의 비구면계수 | 제6면의 비구면계수 | 제7면의 비구면계수 | |
| K | 0.36587438 | -0.04646980 | -1.03434747 |
| A | -2.045245 | 0.000000 | -0.848127 |
| B | 7.74796E-03 | -1.82173E-02 | 3.06269E-02 |
| C | 8.44950E-03 | 1.19808E-02 | 8.01190E-03 |
| D | -1.29965E-02 | -2.67056E-02 | 6.48158E-02 |
| E | 8.14267E-03 | 2.54854E-02 | -2.95118E-02 |
| F | -1.42054E-03 | -5.82323E-03 | 3.69651E-03 |
| 제8면의 비구면계수 | 제9면의 비구면계수 | 제10면의 비구면계수 | |
| K | -0.95733078 | 0.24691222 | 0.44455811 |
| A | -2.483518 | -4.816340 | -11.908208 |
| B | -1.09113E-01 | -2.09989E-02 | -3.38090E-02 |
| C | 5.38957E-02 | 1.36530E-02 | 1.33252E-02 |
| D | 1.30828E-02 | -4.36719E-03 | -2.78504E-03 |
| E | -6.80272E-03 | 6.59467E-04 | 2.79674E-04 |
| F | 5.75392E-04 | -3.97278E-05 | -1.16410E-05 |
Claims (7)
- 물체측으로부터 순서대로,인가되는 전압에 따라 내부에 포함된 서로 다른 액체간에 형성되는 경계면의 곡률이 변하고 상기 경계면이 굴절면의 역할을 수행하는 액체렌즈, 및 상기 액체렌즈의 상측 또는 물체측 커버에 대응하며 적어도 1개의 굴절면이 비구면인 비구면 렌즈를 구비하고, 플러스의 광학적 파워를 가지는 제1 렌즈군;적어도 1개의 굴절면이 비구면인 렌즈를 구비하고, 플러스의 광학적 파워를 가지는 제2 렌즈군; 및적어도 1개의 굴절면이 비구면인 렌즈를 구비하고, 마이너스의 광학적 파워를 가지는 제3 렌즈군;을 포함하며,상기 액체렌즈의 경계면의 곡률이 변함으로써 자동 초점조절이 이루어지는 카메라 모듈의 자동 초점조절 광학계.
- 제1항에 있어서,상기 액체렌즈의 굴절능에 관하여 다음의 조건식 1을 만족하는 것을 특징으로 하는 카메라 모듈의 자동 초점조절 광학계.(조건식 1)-7 〈 D 〈 35D : 상기 액체렌즈의 곡률이 변하는 면의 굴절능(단위:디옵터)
- 제2항에 있어서,상기 렌즈군 전체의 광축방향치수에 관하여 다음의 조건식 2를 추가로 만족하는 것을 특징으로 하는 카메라 모듈의 자동 초점조절 광학계.(조건식 2)oal/f 〈 2.0oal : 개구조리개로부터 상면까지의 거리f : 렌즈전계의 합성 초점거리
- 제2항 또는 제3항에 있어서,상기 제1 렌즈군의 파워에 관하여 다음의 조건식 3을 추가로 만족하는 것을 특징으로 하는 카메라 모듈의 자동 초점조절 광학계.(조건식 3)0.85〈 f1/f〈 1.5f1 : 제1 렌즈군의 합성 초점거리
- 제4항에 있어서,상기 제3 렌즈군의 파워에 관하여 다음의 조건식 4를 추가로 만족하는 것을 특징으로 하는 카메라 모듈의 자동 초점조절 광학계.(조건식 4)2.0〈 |f3/f|〈 5.5f3 : 제3 렌즈군의 합성 초점거리
- 제1항에 있어서,상기 제1 렌즈군은 물체측으로부터 순서대로 상기 액체렌즈의 물체측 커버면에 해당하는 제1 렌즈, 상기 액체렌즈로 이루어지는 제2 렌즈 및 상기 액체렌즈의 상측 커버면에 해당하는 제3 렌즈로 구성되는 것을 특징으로 하는 카메라 모듈의 자동 초점조절 광학계.
- 제1항 또는 제6항에 있어서,물체측 가장 가까이에 개구조리개를 포함하는 것을 특징으로 하는 카메라 모듈의 자동 초점조절 광학계.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020040069726A KR100616616B1 (ko) | 2004-09-01 | 2004-09-01 | 카메라 모듈의 자동 초점조절 광학계 |
| US11/007,205 US7142368B2 (en) | 2004-09-01 | 2004-12-09 | Auto-focusing optical system for camera module |
| DE102004060786A DE102004060786A1 (de) | 2004-09-01 | 2004-12-17 | Autofokussierendes optisches System für eine Kamereinheit |
| CNB2004100615479A CN100437330C (zh) | 2004-09-01 | 2004-12-24 | 用于照相机组件的自动聚焦光学系统 |
| JP2004375082A JP2006072295A (ja) | 2004-09-01 | 2004-12-24 | カメラモジュールの自動焦点調節光学系 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020040069726A KR100616616B1 (ko) | 2004-09-01 | 2004-09-01 | 카메라 모듈의 자동 초점조절 광학계 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR20060020980A KR20060020980A (ko) | 2006-03-07 |
| KR100616616B1 true KR100616616B1 (ko) | 2006-08-28 |
Family
ID=36139367
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020040069726A Expired - Fee Related KR100616616B1 (ko) | 2004-09-01 | 2004-09-01 | 카메라 모듈의 자동 초점조절 광학계 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US7142368B2 (ko) |
| JP (1) | JP2006072295A (ko) |
| KR (1) | KR100616616B1 (ko) |
| CN (1) | CN100437330C (ko) |
| DE (1) | DE102004060786A1 (ko) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US12105269B2 (en) | 2021-02-26 | 2024-10-01 | Beijing Xiaomi Mobile Software Co., Ltd. | Telephoto imaging system, lens, and camera module |
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| JPH09101454A (ja) * | 1995-10-05 | 1997-04-15 | Fuji Photo Optical Co Ltd | コンパクトな2群ズームレンズ |
| TW442665B (en) * | 1999-12-02 | 2001-06-23 | Ind Tech Res Inst | High resolution zoom lens with very long back focal length and far-centered design |
| US6702483B2 (en) * | 2000-02-17 | 2004-03-09 | Canon Kabushiki Kaisha | Optical element |
| AU2003201481A1 (en) | 2002-02-14 | 2003-09-04 | Koninklijke Philips Electronics N.V. | Variable focus lens |
| WO2004038480A1 (en) | 2002-10-25 | 2004-05-06 | Koninklijke Philips Electronics N.V. | Zoom lens |
| WO2005088354A1 (en) | 2004-03-09 | 2005-09-22 | Koninklijke Philips Electronics N.V. | Variable optical element comprising immiscible fluids |
-
2004
- 2004-09-01 KR KR1020040069726A patent/KR100616616B1/ko not_active Expired - Fee Related
- 2004-12-09 US US11/007,205 patent/US7142368B2/en not_active Expired - Fee Related
- 2004-12-17 DE DE102004060786A patent/DE102004060786A1/de not_active Withdrawn
- 2004-12-24 JP JP2004375082A patent/JP2006072295A/ja active Pending
- 2004-12-24 CN CNB2004100615479A patent/CN100437330C/zh not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US12105269B2 (en) | 2021-02-26 | 2024-10-01 | Beijing Xiaomi Mobile Software Co., Ltd. | Telephoto imaging system, lens, and camera module |
Also Published As
| Publication number | Publication date |
|---|---|
| US7142368B2 (en) | 2006-11-28 |
| US20060056042A1 (en) | 2006-03-16 |
| CN100437330C (zh) | 2008-11-26 |
| DE102004060786A1 (de) | 2006-03-16 |
| KR20060020980A (ko) | 2006-03-07 |
| JP2006072295A (ja) | 2006-03-16 |
| CN1743939A (zh) | 2006-03-08 |
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