KR880009284A - 줌 렌즈 - Google Patents

줌 렌즈 Download PDF

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Publication number
KR880009284A
KR880009284A KR1019880000125A KR880000125A KR880009284A KR 880009284 A KR880009284 A KR 880009284A KR 1019880000125 A KR1019880000125 A KR 1019880000125A KR 880000125 A KR880000125 A KR 880000125A KR 880009284 A KR880009284 A KR 880009284A
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KR
South Korea
Prior art keywords
lens
group
lens group
groups
spherical aberration
Prior art date
Application number
KR1019880000125A
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English (en)
Other versions
KR970003767B1 (ko
Inventor
요하네스 마리아 브라트 요세푸스
스미드 알베르트
Original Assignee
이반 밀러 레르러
엔.브이.필립스 글로아이람펜파브리켄
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 이반 밀러 레르러, 엔.브이.필립스 글로아이람펜파브리켄 filed Critical 이반 밀러 레르러
Publication of KR880009284A publication Critical patent/KR880009284A/ko
Application granted granted Critical
Publication of KR970003767B1 publication Critical patent/KR970003767B1/ko

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Classifications

    • 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
    • G02B15/144—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 four groups only
    • G02B15/1441—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 four groups only the first group being positive
    • G02B15/144113—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 four groups only the first group being positive arranged +-++
    • 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
    • G02B15/16—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 with interdependent non-linearly related movements between one lens or lens group, and another lens or lens group
    • G02B15/163—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 with interdependent non-linearly related movements between one lens or lens group, and another lens or lens group having a first movable lens or lens group and a second movable lens or lens group, both in front of a fixed lens or lens group
    • G02B15/167—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 with interdependent non-linearly related movements between one lens or lens group, and another lens or lens group having a first movable lens or lens group and a second movable lens or lens group, both in front of a fixed lens or lens group having an additional fixed front lens or group of lenses
    • G02B15/173—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 with interdependent non-linearly related movements between one lens or lens group, and another lens or lens group having a first movable lens or lens group and a second movable lens or lens group, both in front of a fixed lens or lens group having an additional fixed front lens or group of lenses arranged +-+
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below
    • G02B13/22—Telecentric objectives or lens systems

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Nonlinear Science (AREA)
  • Lenses (AREA)

Abstract

내용 없음.

Description

줌 렌즈
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1a도는 원거리, 정상거리 및 광각위치에서의 줌 렌즈의 제1실시예.
제3a, 3b는 원거리, 정상거리 및 광각위치에서의 줌 렌즈의 제3실시예.

Claims (4)

  1. 대상물 종단으로 부터 볼 수 있으며, 포지티브 제1렌즈그룹과, 제1렌즈그룹에 대해 이동될 수 있는 네가티브 제2렌즈그룹과, 제3렌즈그룹과, 제3렌즈그룹 및 포지티브 제4렌즈 그룹을 연속적으로 구비하며, 여기서 제4렌즈 그룹은 일정한 파워를 가진 주 그룹이며, 결합된 3개의 제2렌즈 그룹은 적은 파워 및 가변 배율를 가진 렌즈 시스템을 구성하며, 스틸화상이 픽업될 수 있는 전자 카메라용 줌 렌즈에 있어서, 주어진 초점길이에 관련된 제2렌즈그룹의 위치와 동일하게 제1 및 제2렌즈그룹에서의 렌즈소자의 표면의 곡률이 제1렌즈그룹 및 제2렌즈 그룹의 구면수차의 합이 줌 길이를 통해 일정한 것을 특징으로 하는 줌 렌즈.
  2. 제1항에 있어서, 원거리 모드에 있어서, 최대 경계빔의 광이 제1 및 제2렌즈그룹의 렌즈소자상에서 수직에 대해 비교적 적은 각으로 연장되어 있는 허용각으로 입사되며, 반면에, 제2렌즈그룹에서의 상기 광이 광측에 근접되게 연장되며, 제1 및 제2렌즈그룹의 구면수차는 적으며. 최소한 큰부분에 대해 서로 보상하며, 광각모드에 있어서, 상기 경계빔의 광은 제1 및 제2렌즈그룹의 렌즈소자상에서 수직에 대해 비교적 큰 각으로 연장되어 있으며, 반면에, 제2렌즈그룹에서의 상기 광은 광축으로 부터 비교적 큰 거리로 연장되어 있으며, 제1렌즈그룹의 비교적 큰 포지티브 구면구차와 제2렌즈그룹의 비교적 큰 네가티브 구면수차가 원거리 모드에서와 같이 서로 어느정도 보상하는 것을 특징으로 하는 줌 렌즈.
  3. 제1 또는 2항에 있어서, 결합된 제1 및 제2 렌즈 그룹의 일정 구면 수차는 동일하여 주 그룹의 구면수차에는 반대되는 것을 특징으로 하는 줌 렌즈.
  4. 제1,2 또는 3항에 있어서, 제1, 제2 및 제4렌즈 그룹의 렌즈소자가 이중 형태인 것을 특징으로 하는 줌 렌즈.
    ※ 참고사항 : 최초출된 내용에 의하여 공개하는 것임.
KR1019880000125A 1987-01-13 1988-01-11 줌 렌즈 KR970003767B1 (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL8700059A NL8700059A (nl) 1987-01-13 1987-01-13 Zoomlens voor een elektronische kamera.
NL8700059 1987-01-13

Publications (2)

Publication Number Publication Date
KR880009284A true KR880009284A (ko) 1988-09-14
KR970003767B1 KR970003767B1 (ko) 1997-03-21

Family

ID=19849400

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019880000125A KR970003767B1 (ko) 1987-01-13 1988-01-11 줌 렌즈

Country Status (7)

Country Link
US (1) US5071237A (ko)
EP (1) EP0278126B1 (ko)
JP (1) JPH0644099B2 (ko)
KR (1) KR970003767B1 (ko)
DE (1) DE3787462T2 (ko)
HK (1) HK163695A (ko)
NL (1) NL8700059A (ko)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5587739A (en) * 1993-03-26 1996-12-24 Nikon Corporation Variable magnification image taking device
JP2002218295A (ja) * 2001-01-18 2002-08-02 Olympus Optical Co Ltd 撮像装置
JP4496009B2 (ja) * 2004-05-17 2010-07-07 株式会社リコー ズームレンズおよび撮影機能を有する情報装置
JP4764644B2 (ja) * 2005-02-23 2011-09-07 株式会社リコー ズームレンズおよび情報装置
TWI705266B (zh) 2016-06-08 2020-09-21 揚明光學股份有限公司 光學系統及其光學鏡頭

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT317576B (de) * 1972-01-13 1974-09-10 Eumig Pankratisches Objektiv
US4390248A (en) * 1979-09-27 1983-06-28 Canon Kabushiki Kaisha Wide angle zoom lens
JPS5754911A (en) * 1980-09-18 1982-04-01 Canon Inc Zoom lens having telecentric relay part
US4525036A (en) * 1982-03-08 1985-06-25 Tokyo Shibaura Denki Kabushiki Kaisha Zoom lens
JPS5971015A (ja) * 1982-10-15 1984-04-21 Canon Inc ズ−ムレンズ
JPS6139016A (ja) * 1984-07-31 1986-02-25 Ricoh Co Ltd コンパクトなズ−ムレンズ
US4763998A (en) * 1985-06-26 1988-08-16 Canon Kabushiki Kaisha Compact zoom lens

Also Published As

Publication number Publication date
EP0278126A1 (en) 1988-08-17
JPH0644099B2 (ja) 1994-06-08
KR970003767B1 (ko) 1997-03-21
JPS63180926A (ja) 1988-07-26
HK163695A (en) 1995-10-27
NL8700059A (nl) 1988-08-01
DE3787462T2 (de) 1994-04-07
US5071237A (en) 1991-12-10
DE3787462D1 (de) 1993-10-21
EP0278126B1 (en) 1993-09-15

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