KR20060113256A - 소형 줌렌즈 - Google Patents
소형 줌렌즈 Download PDFInfo
- Publication number
- KR20060113256A KR20060113256A KR1020050036536A KR20050036536A KR20060113256A KR 20060113256 A KR20060113256 A KR 20060113256A KR 1020050036536 A KR1020050036536 A KR 1020050036536A KR 20050036536 A KR20050036536 A KR 20050036536A KR 20060113256 A KR20060113256 A KR 20060113256A
- Authority
- KR
- South Korea
- Prior art keywords
- lens group
- lens
- conditional expression
- wide
- lenses
- Prior art date
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Classifications
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B15/00—Optical objectives with means for varying the magnification
- G02B15/14—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective
- G02B15/146—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective having more than five groups
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B15/00—Optical objectives with means for varying the magnification
- G02B15/14—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective
- G02B15/143—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective having three groups only
- G02B15/1435—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective having three groups only the first group being negative
- G02B15/143507—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective having three groups only the first group being negative arranged -++
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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
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B3/00—Simple or compound lenses
- G02B3/0006—Arrays
- G02B3/0037—Arrays characterized by the distribution or form of lenses
- G02B3/0062—Stacked lens arrays, i.e. refractive surfaces arranged in at least two planes, without structurally separate optical elements in-between
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B3/00—Simple or compound lenses
- G02B3/0087—Simple or compound lenses with index gradient
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B3/00—Simple or compound lenses
- G02B3/02—Simple or compound lenses with non-spherical faces
- G02B3/04—Simple or compound lenses with non-spherical faces with continuous faces that are rotationally symmetrical but deviate from a true sphere, e.g. so called "aspheric" lenses
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Lenses (AREA)
Abstract
Description
광각단 | 중간단 | 망원단 | |
D1 | 12.179 | 4.777 | 0.900 |
D2 | 6.219 | 9.189 | 16.330 |
D3 | 2.032 | 2.402 | 1.000 |
광각단 | 중간단 | 망원단 | |
D1 | 11.725 | 5.13 | 1.1 |
D2 | 6.135 | 10.184 | 17.263 |
D3 | 2.511 | 2.174 | 1.1 |
광각단 | 중간단 | 망원단 | |
D1 | 13.835 | 4.755 | 2.150 |
D2 | 6.999 | 12.579 | 17.967 |
D3 | 1.695 | 1.745 | 1.100 |
실시예 1 | 실시예 2 | 실시예 3 | |
수학식 1 | 1.9229 | 1.9229 | 1.9229 |
수학식 2 | 0.917 | 0.970 | 0.956 |
수학식 3 | 0.512 | 0.541 | 0.588 |
수학식 4 | 2.221 | 2.291 | 2.473 |
수학식 5 | 1.455 | 1.382 | 1.379 |
수학식 6 | 1.8050 | 1.8050 | 1.69384 |
수학식 7 | 2.822 | 2.79 | 2.8 |
Claims (13)
- 제 1항에 있어서,광각단에서 망원단으로 변배시 상기 제1렌즈군과 제2렌즈군 사이의 거리는 감소하고, 제2렌즈군과 제3렌즈군 사이의 거리는 증가하며, 제3렌즈군과 제3렌즈군으로부터 상측에 있는 카바글라스 간의 거리는 감소하는 것을 특징으로 하는 줌렌즈.
- 제 1항에 있어서,상기 제1렌즈군은 2매의 렌즈로 구성되되 상기 2매의 렌즈 중 하나가 정의 굴절력을 가지는 것을 특징으로 하는 줌렌즈.
- 제 1항 내지 3항 중 어느 한 항에 있어서,제2렌즈군은 3매의 렌즈로 구성되되 적어도 두 매의 렌즈가 접합된 접합렌즈를 포함하고, 제3렌즈군은 정의 굴절력을 가진 한 매의 렌즈로 구성되는 것을 특징으로 하는 줌렌즈.
- 제 1항 내지 제 3항 중 어느 한 항에 있어서,상기 제1렌즈군의 물체측 2번째 렌즈가 상기 굴절률 Gn1을 가지는 것을 특징으로 하는 줌렌즈.
- 제 5항에 있어서,상기 물체측 2번째 렌즈는 정의 굴절력을 가진 것을 특징으로 하는 줌렌즈.
- 제 1항에 있어서,상기 제1렌즈군은 비구면을 가지는 적어도 하나의 렌즈를 포함하는 것을 특징으로 하는 줌렌즈.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020050036536A KR100673961B1 (ko) | 2005-04-30 | 2005-04-30 | 소형 줌렌즈 |
US11/248,740 US7365912B2 (en) | 2005-04-30 | 2005-10-12 | Compact zoom lens |
CN2005101160691A CN1854790B (zh) | 2005-04-30 | 2005-10-28 | 紧凑型变焦镜头 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020050036536A KR100673961B1 (ko) | 2005-04-30 | 2005-04-30 | 소형 줌렌즈 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20060113256A true KR20060113256A (ko) | 2006-11-02 |
KR100673961B1 KR100673961B1 (ko) | 2007-01-24 |
Family
ID=37195080
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020050036536A KR100673961B1 (ko) | 2005-04-30 | 2005-04-30 | 소형 줌렌즈 |
Country Status (3)
Country | Link |
---|---|
US (1) | US7365912B2 (ko) |
KR (1) | KR100673961B1 (ko) |
CN (1) | CN1854790B (ko) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4857529B2 (ja) * | 2004-06-25 | 2012-01-18 | コニカミノルタオプト株式会社 | 変倍光学系、撮像レンズ装置及びデジタル機器 |
KR101431544B1 (ko) * | 2008-02-04 | 2014-09-19 | 삼성전자주식회사 | 소형 줌 렌즈 |
TW200937038A (en) * | 2008-02-27 | 2009-09-01 | Youngtek Electronics Corp | Optical object distance simulation device for reducing total optical path |
JP2010256417A (ja) * | 2009-04-21 | 2010-11-11 | Sony Corp | ズームレンズ及び撮像装置 |
KR101679289B1 (ko) * | 2009-07-07 | 2016-11-24 | 삼성전자 주식회사 | 줌 렌즈 및 이를 구비한 결상 광학 장치 |
JP5669105B2 (ja) * | 2010-12-28 | 2015-02-12 | パナソニックIpマネジメント株式会社 | ズームレンズ系、撮像装置及びカメラ |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6124984A (en) * | 1996-12-13 | 2000-09-26 | Nikon Corporation | Variable magnification optical zoom lens system |
JP4447680B2 (ja) | 1998-10-08 | 2010-04-07 | キヤノン株式会社 | ズームレンズ |
JP3710352B2 (ja) | 2000-03-27 | 2005-10-26 | キヤノン株式会社 | ズームレンズ及びそれを用いた光学機器 |
JP3709148B2 (ja) | 2001-03-19 | 2005-10-19 | ペンタックス株式会社 | ズームレンズ系 |
US6888683B2 (en) * | 2001-05-17 | 2005-05-03 | Canon Kabushiki Kaisha | Zoom lens and camera |
KR100467954B1 (ko) | 2001-09-18 | 2005-01-24 | 삼성테크윈 주식회사 | 소형 줌 렌즈 |
US6829102B2 (en) * | 2002-03-20 | 2004-12-07 | Ricoh Company, Ltd. | Zoom lens, and camera and portable information terminal for utilizing zoom lens |
JP2004061675A (ja) | 2002-07-26 | 2004-02-26 | Canon Inc | ズームレンズ |
JP4244288B2 (ja) * | 2002-08-29 | 2009-03-25 | フジノン株式会社 | 3群ズームレンズ |
JP4366109B2 (ja) * | 2003-05-06 | 2009-11-18 | キヤノン株式会社 | ズームレンズ及びそれを有する光学機器 |
JP4497514B2 (ja) | 2003-09-11 | 2010-07-07 | フジノン株式会社 | 広角ズームレンズ |
JP2005107034A (ja) | 2003-09-29 | 2005-04-21 | Nikon Corp | ズームレンズ |
JP4576819B2 (ja) | 2003-09-30 | 2010-11-10 | 株式会社ニコン | ズームレンズ |
US7092170B2 (en) * | 2004-04-30 | 2006-08-15 | Olympus Corporation | Zoom lens and image pickup apparatus |
-
2005
- 2005-04-30 KR KR1020050036536A patent/KR100673961B1/ko active IP Right Grant
- 2005-10-12 US US11/248,740 patent/US7365912B2/en active Active
- 2005-10-28 CN CN2005101160691A patent/CN1854790B/zh not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
US7365912B2 (en) | 2008-04-29 |
US20060245075A1 (en) | 2006-11-02 |
CN1854790B (zh) | 2011-05-25 |
KR100673961B1 (ko) | 2007-01-24 |
CN1854790A (zh) | 2006-11-01 |
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