DE2934305A1 - Nahbereichs-zoomobjektiv - Google Patents

Nahbereichs-zoomobjektiv

Info

Publication number
DE2934305A1
DE2934305A1 DE19792934305 DE2934305A DE2934305A1 DE 2934305 A1 DE2934305 A1 DE 2934305A1 DE 19792934305 DE19792934305 DE 19792934305 DE 2934305 A DE2934305 A DE 2934305A DE 2934305 A1 DE2934305 A1 DE 2934305A1
Authority
DE
Germany
Prior art keywords
lens
group
distance
lens group
focal length
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.)
Withdrawn
Application number
DE19792934305
Other languages
German (de)
English (en)
Inventor
Soichi Nakamura
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nikon Corp
Original Assignee
Nippon Kogaku KK
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 Nippon Kogaku KK filed Critical Nippon Kogaku KK
Publication of DE2934305A1 publication Critical patent/DE2934305A1/de
Withdrawn legal-status Critical Current

Links

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
    • G02B15/143—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
    • G02B15/143503—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 -+-

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Lenses (AREA)
DE19792934305 1978-08-29 1979-08-24 Nahbereichs-zoomobjektiv Withdrawn DE2934305A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10447178A JPS5532037A (en) 1978-08-29 1978-08-29 Zoom lens system for near distance

Publications (1)

Publication Number Publication Date
DE2934305A1 true DE2934305A1 (de) 1980-03-13

Family

ID=14381490

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19792934305 Withdrawn DE2934305A1 (de) 1978-08-29 1979-08-24 Nahbereichs-zoomobjektiv

Country Status (3)

Country Link
US (1) US4303311A (https=)
JP (1) JPS5532037A (https=)
DE (1) DE2934305A1 (https=)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4509833A (en) * 1981-10-28 1985-04-09 Canon Kabushiki Kaisha High variable magnification wide angle zoom lens
JPS5895280U (ja) * 1981-12-19 1983-06-28 セイレイ工業株式会社 穀粒選別機における回転選別胴内の仕切り装置
JPH0640170B2 (ja) * 1982-07-23 1994-05-25 キヤノン株式会社 高変倍広角ズ−ムレンズ
JPS58200208A (ja) * 1982-05-19 1983-11-21 Canon Inc 小型の広角ズ−ムレンズ
US4466708A (en) * 1981-12-28 1984-08-21 Vivitar Corporation Zoom lens
JPS58132209A (ja) * 1982-02-01 1983-08-06 Canon Inc 広角ズ−ムレンズ
JPS61213817A (ja) * 1985-03-20 1986-09-22 Ricoh Co Ltd ズ−ムフアインダ
JPH0792546B2 (ja) * 1986-07-18 1995-10-09 キヤノン株式会社 小型のズ−ムレンズ
US5270866A (en) * 1986-07-18 1993-12-14 Canon Kabushiki Kaisha Compact zoom lens
JPH0532807Y2 (https=) * 1986-11-06 1993-08-23
JPH01163716A (ja) * 1987-12-19 1989-06-28 Minolta Camera Co Ltd 歪曲収差の少ないマイクロフィルム投影用ズームレンズ系
JP2623620B2 (ja) * 1987-12-19 1997-06-25 ミノルタ株式会社 ズームレンズ系
JP2743440B2 (ja) * 1989-02-28 1998-04-22 ミノルタ株式会社 有限共役距離ズームレンズ系
JP2780309B2 (ja) * 1989-02-28 1998-07-30 ミノルタ株式会社 コンパクトなズームレンズ系
JP2743439B2 (ja) * 1989-02-28 1998-04-22 ミノルタ株式会社 有限共役距離ズームレンズ系
US5175648A (en) * 1990-01-18 1992-12-29 Konica Corporation Zoom lens
JP2729851B2 (ja) * 1990-08-04 1998-03-18 富士写真光機株式会社 レトロフォーカス型広角レンズ
JP4827454B2 (ja) * 2005-07-22 2011-11-30 キヤノン株式会社 ズームレンズおよびそれを有する撮像装置
CN102549475A (zh) * 2009-08-07 2012-07-04 光处方革新有限公司 具有真深度感知的3d自动立体视法显示器
EP4369072B1 (en) * 2021-11-12 2025-12-24 Samsung Electronics Co., Ltd. Lens assembly and electronic device comprising same

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH481390A (fr) * 1968-10-10 1969-11-15 Paillard Sa Objectif à focale variable
US3705759A (en) * 1970-05-20 1972-12-12 Rank Organisation Ltd Optical objective of variable focal length
JPS492548A (https=) * 1972-04-18 1974-01-10
JPS5229521B2 (https=) * 1972-07-03 1977-08-02
JPS5334539A (en) * 1976-09-13 1978-03-31 Tokina Optical Wide angle high zoom ratio zoom system
JPS5426754A (en) * 1977-07-30 1979-02-28 Asahi Optical Co Ltd Zoom lens having small distorted aberration
JPS5850326B2 (ja) * 1977-12-02 1983-11-10 旭光学工業株式会社 歪曲収差の小さなズ−ムレンズ

Also Published As

Publication number Publication date
JPS5532037A (en) 1980-03-06
US4303311A (en) 1981-12-01
JPS6140968B2 (https=) 1986-09-12

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Legal Events

Date Code Title Description
OI Miscellaneous see part 1
8130 Withdrawal