JPH0416088B2 - - Google Patents

Info

Publication number
JPH0416088B2
JPH0416088B2 JP59242150A JP24215084A JPH0416088B2 JP H0416088 B2 JPH0416088 B2 JP H0416088B2 JP 59242150 A JP59242150 A JP 59242150A JP 24215084 A JP24215084 A JP 24215084A JP H0416088 B2 JPH0416088 B2 JP H0416088B2
Authority
JP
Japan
Prior art keywords
lens
lens group
group
soft focus
lens surface
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
Application number
JP59242150A
Other languages
English (en)
Japanese (ja)
Other versions
JPS61121021A (ja
Inventor
Tsunefumi Tanaka
Takashi Matsushita
Nozomi Kitagishi
Sadatoshi Takahashi
Keiji Ikemori
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.)
Canon Inc
Original Assignee
Canon Inc
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 Canon Inc filed Critical Canon Inc
Priority to JP59242150A priority Critical patent/JPS61121021A/ja
Priority to US06/798,756 priority patent/US4781446A/en
Publication of JPS61121021A publication Critical patent/JPS61121021A/ja
Publication of JPH0416088B2 publication Critical patent/JPH0416088B2/ja
Granted 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Lenses (AREA)
JP59242150A 1984-11-16 1984-11-16 ソフトフオ−カス機能を有するズ−ムレンズ Granted JPS61121021A (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP59242150A JPS61121021A (ja) 1984-11-16 1984-11-16 ソフトフオ−カス機能を有するズ−ムレンズ
US06/798,756 US4781446A (en) 1984-11-16 1985-11-15 Zoom lens having a capability of introducing special features into image formats

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59242150A JPS61121021A (ja) 1984-11-16 1984-11-16 ソフトフオ−カス機能を有するズ−ムレンズ

Publications (2)

Publication Number Publication Date
JPS61121021A JPS61121021A (ja) 1986-06-09
JPH0416088B2 true JPH0416088B2 (en, 2012) 1992-03-23

Family

ID=17085063

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59242150A Granted JPS61121021A (ja) 1984-11-16 1984-11-16 ソフトフオ−カス機能を有するズ−ムレンズ

Country Status (1)

Country Link
JP (1) JPS61121021A (en, 2012)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11109229A (ja) * 1997-10-02 1999-04-23 Asahi Optical Co Ltd 広角を包含するソフトフォーカスズームレンズ系
JP2002236254A (ja) * 2001-02-09 2002-08-23 Sigma Corp ズームレンズ
JP5063165B2 (ja) * 2007-04-06 2012-10-31 キヤノン株式会社 ズームレンズ及び画像投射装置
JP5253604B2 (ja) * 2012-06-20 2013-07-31 キヤノン株式会社 ズームレンズ及び画像投射装置
JP2017122861A (ja) * 2016-01-08 2017-07-13 パナソニックＩｐマネジメント株式会社 レンズ系、交換レンズ装置及びカメラシステム
JP7451232B2 (ja) * 2020-03-02 2024-03-18 株式会社タムロン ズームレンズ及び撮像装置

Also Published As

Publication number Publication date
JPS61121021A (ja) 1986-06-09

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