JPS5348728A - Zoom lens - Google Patents

Zoom lens

Info

Publication number
JPS5348728A
JPS5348728A JP12372676A JP12372676A JPS5348728A JP S5348728 A JPS5348728 A JP S5348728A JP 12372676 A JP12372676 A JP 12372676A JP 12372676 A JP12372676 A JP 12372676A JP S5348728 A JPS5348728 A JP S5348728A
Authority
JP
Japan
Prior art keywords
zoom lens
zoom
zooming
telephoto
determing
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
JP12372676A
Other languages
Japanese (ja)
Other versions
JPS6037449B2 (en
Inventor
Tatatomi Inoue
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.)
Fujinon Corp
Original Assignee
Fuji Photo Optical 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 Fuji Photo Optical Co Ltd filed Critical Fuji Photo Optical Co Ltd
Priority to JP12372676A priority Critical patent/JPS6037449B2/en
Publication of JPS5348728A publication Critical patent/JPS5348728A/en
Publication of JPS6037449B2 publication Critical patent/JPS6037449B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Lens Barrels (AREA)
  • Diaphragms For Cameras (AREA)

Abstract

PURPOSE: Zoom operation amount and zoom movement amount on the telephoto side in telephoto zooming are adjusted and zooming to a zoom ratio range where F-number drops is automatically inhibited by turning an F-number-determing diaphragm ring.
COPYRIGHT: (C)1978,JPO&Japio
JP12372676A 1976-10-15 1976-10-15 zoom lens Expired JPS6037449B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12372676A JPS6037449B2 (en) 1976-10-15 1976-10-15 zoom lens

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12372676A JPS6037449B2 (en) 1976-10-15 1976-10-15 zoom lens

Publications (2)

Publication Number Publication Date
JPS5348728A true JPS5348728A (en) 1978-05-02
JPS6037449B2 JPS6037449B2 (en) 1985-08-26

Family

ID=14867833

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12372676A Expired JPS6037449B2 (en) 1976-10-15 1976-10-15 zoom lens

Country Status (1)

Country Link
JP (1) JPS6037449B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5879223A (en) * 1981-11-05 1983-05-13 Fuji Photo Optical Co Ltd Speed control servo circuit of zoom lens
JPS61223830A (en) * 1985-03-29 1986-10-04 Canon Inc Zoom lens

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5879223A (en) * 1981-11-05 1983-05-13 Fuji Photo Optical Co Ltd Speed control servo circuit of zoom lens
JPS6255768B2 (en) * 1981-11-05 1987-11-20 Fuji Photo Optical Co Ltd
JPS61223830A (en) * 1985-03-29 1986-10-04 Canon Inc Zoom lens

Also Published As

Publication number Publication date
JPS6037449B2 (en) 1985-08-26

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