JPS557712A - Compact standard zoom lens - Google Patents

Compact standard zoom lens

Info

Publication number
JPS557712A
JPS557712A JP7937878A JP7937878A JPS557712A JP S557712 A JPS557712 A JP S557712A JP 7937878 A JP7937878 A JP 7937878A JP 7937878 A JP7937878 A JP 7937878A JP S557712 A JPS557712 A JP S557712A
Authority
JP
Japan
Prior art keywords
lens
lenses
zoom lens
becomes
compact
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.)
Granted
Application number
JP7937878A
Other languages
English (en)
Other versions
JPS5833530B2 (ja
Inventor
Sadao Okudaira
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.)
Pentax Corp
Original Assignee
Asahi Kogaku Kogyo Co Ltd
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 Asahi Kogaku Kogyo Co Ltd filed Critical Asahi Kogaku Kogyo Co Ltd
Priority to JP53079378A priority Critical patent/JPS5833530B2/ja
Priority to US06/045,353 priority patent/US4251132A/en
Priority to DE2923151A priority patent/DE2923151C2/de
Priority to GB7919981A priority patent/GB2024446B/en
Publication of JPS557712A publication Critical patent/JPS557712A/ja
Publication of JPS5833530B2 publication Critical patent/JPS5833530B2/ja
Expired 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
    • G02B15/142—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 two groups only
    • G02B15/1425—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 two groups only the first group being negative

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Lenses (AREA)
JP53079378A 1978-06-30 1978-06-30 コンパクトな標準ズ−ムレンズ Expired JPS5833530B2 (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP53079378A JPS5833530B2 (ja) 1978-06-30 1978-06-30 コンパクトな標準ズ−ムレンズ
US06/045,353 US4251132A (en) 1978-06-30 1979-06-04 Compact standard zoom lens
DE2923151A DE2923151C2 (de) 1978-06-30 1979-06-07 Kompaktes Standard-Vario-Objektiv
GB7919981A GB2024446B (en) 1978-06-30 1979-06-08 Zoom lens systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP53079378A JPS5833530B2 (ja) 1978-06-30 1978-06-30 コンパクトな標準ズ−ムレンズ

Publications (2)

Publication Number Publication Date
JPS557712A true JPS557712A (en) 1980-01-19
JPS5833530B2 JPS5833530B2 (ja) 1983-07-20

Family

ID=13688200

Family Applications (1)

Application Number Title Priority Date Filing Date
JP53079378A Expired JPS5833530B2 (ja) 1978-06-30 1978-06-30 コンパクトな標準ズ−ムレンズ

Country Status (4)

Country Link
US (1) US4251132A (ja)
JP (1) JPS5833530B2 (ja)
DE (1) DE2923151C2 (ja)
GB (1) GB2024446B (ja)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5773715A (en) * 1980-10-24 1982-05-08 Asahi Optical Co Ltd Zoom lens system for finite distance
JPS5913211A (ja) * 1982-07-14 1984-01-24 Canon Inc ズ−ムレンズ
US4494131A (en) * 1980-10-31 1985-01-15 Rikagaku Kenkyusho Josephson junction element and method of making the same

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55149914A (en) * 1979-05-10 1980-11-21 Canon Inc Wide angle zoom lens
US4818161A (en) * 1985-10-15 1989-04-04 Cook Harold D Tool holder system and method of use
DE4326465A1 (de) * 1993-01-20 1995-02-09 Thomae Gmbh Dr K Aminosäurederivate, diese Verbindungen enthaltende Arzneimittel und Verfahren zu ihrer Herstellung
JPH10206734A (ja) * 1997-01-17 1998-08-07 Asahi Optical Co Ltd ズームレンズ
CN114815197B (zh) * 2022-06-29 2022-10-21 江西晶超光学有限公司 光学系统、镜头模组和电子设备

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5182642A (en) * 1974-12-28 1976-07-20 Nippon Kogaku Kk Kokakuzuumurenzukei
JPS5245940A (en) * 1975-10-09 1977-04-12 Nippon Kogaku Kk <Nikon> Wide angle zoom lens system
JPS5254456A (en) * 1975-10-29 1977-05-02 Nippon Chemical Ind Wide angle zoom lens syste
JPS52152250A (en) * 1976-05-10 1977-12-17 Asahi Optical Co Ltd Zoom lens system

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5513334B2 (ja) * 1975-01-18 1980-04-08
JPS5391756A (en) * 1977-01-21 1978-08-11 Minolta Camera Co Ltd Zoom lens system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5182642A (en) * 1974-12-28 1976-07-20 Nippon Kogaku Kk Kokakuzuumurenzukei
JPS5245940A (en) * 1975-10-09 1977-04-12 Nippon Kogaku Kk <Nikon> Wide angle zoom lens system
JPS5254456A (en) * 1975-10-29 1977-05-02 Nippon Chemical Ind Wide angle zoom lens syste
JPS52152250A (en) * 1976-05-10 1977-12-17 Asahi Optical Co Ltd Zoom lens system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5773715A (en) * 1980-10-24 1982-05-08 Asahi Optical Co Ltd Zoom lens system for finite distance
US4494131A (en) * 1980-10-31 1985-01-15 Rikagaku Kenkyusho Josephson junction element and method of making the same
JPS5913211A (ja) * 1982-07-14 1984-01-24 Canon Inc ズ−ムレンズ

Also Published As

Publication number Publication date
JPS5833530B2 (ja) 1983-07-20
US4251132A (en) 1981-02-17
GB2024446B (en) 1982-07-14
DE2923151C2 (de) 1982-04-01
GB2024446A (en) 1980-01-09
DE2923151A1 (de) 1980-01-03

Similar Documents

Publication Publication Date Title
JPS54157620A (en) Photographic telephoto lens
JPS55163510A (en) Telephoto lens
JPS5744115A (en) Reflex telephoto zoom lens system
JPS54127322A (en) Zoom lens
JPS5659217A (en) Lens for compact camera of short overall length using aspherical face
JPS54119233A (en) Finder optical system
JPS5643618A (en) Attachment lens
JPS557712A (en) Compact standard zoom lens
JPS5581316A (en) Lens system for copying
JPS5397824A (en) Camera lens of behind iris
JPS5453528A (en) Conversion lens system
JPS5619022A (en) Zoom lens of small size
JPS5655915A (en) Zoom lens
JPS55121417A (en) Telephoto lens of small telephoto rate
JPS54158225A (en) Photographic lens having long back focus and large aperture ratio
JPS57171309A (en) Lens for compact camera having short total length
JPS5612613A (en) Zoom lens
JPS5612614A (en) Compact zoom lens system
JPS56132306A (en) Small-sized zoom lens
JPS5659216A (en) Standard lens with wide angle of view
JPS55159409A (en) Larger aperture photographic lens
JPS55161207A (en) Zoom lens of small size
JPS55113012A (en) Wide angle zoom lens
JPS56107211A (en) Zoom lens
JPS5655916A (en) Zoom lens