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JPS5234725A - Cam cylinder for zoom lens - Google Patents

Cam cylinder for zoom lens

Info

Publication number
JPS5234725A
JPS5234725A JP11069975A JP11069975A JPS5234725A JP S5234725 A JPS5234725 A JP S5234725A JP 11069975 A JP11069975 A JP 11069975A JP 11069975 A JP11069975 A JP 11069975A JP S5234725 A JPS5234725 A JP S5234725A
Authority
JP
Japan
Prior art keywords
zoom lens
cam cylinder
cylinder
cam
counteracts
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
JP11069975A
Other languages
Japanese (ja)
Other versions
JPS59810B2 (en
Inventor
Kimio Tanaka
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 JP11069975A priority Critical patent/JPS59810B2/en
Publication of JPS5234725A publication Critical patent/JPS5234725A/en
Publication of JPS59810B2 publication Critical patent/JPS59810B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Lens Barrels (AREA)

Abstract

PURPOSE: To obtain an accurate cam cylinder for the zoom lens of a smooth operation by providing a cam groove which controls a means which counteracts an action due to the shift of a movable optical system on the outer circumference of the cylinder in zooming.
COPYRIGHT: (C)1977,JPO&Japio
JP11069975A 1975-09-12 1975-09-12 Zoom lens moving device Expired JPS59810B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11069975A JPS59810B2 (en) 1975-09-12 1975-09-12 Zoom lens moving device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11069975A JPS59810B2 (en) 1975-09-12 1975-09-12 Zoom lens moving device

Publications (2)

Publication Number Publication Date
JPS5234725A true JPS5234725A (en) 1977-03-16
JPS59810B2 JPS59810B2 (en) 1984-01-09

Family

ID=14542199

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11069975A Expired JPS59810B2 (en) 1975-09-12 1975-09-12 Zoom lens moving device

Country Status (1)

Country Link
JP (1) JPS59810B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55120006A (en) * 1979-03-08 1980-09-16 Canon Inc Focus adjsutment operating force balance mechanism in photographic lens
JPS58154822A (en) * 1982-03-10 1983-09-14 Fuji Photo Optical Co Ltd Preventing mechanism for natural movement of zoom lens
JP2012048178A (en) * 2010-08-30 2012-03-08 Fujifilm Corp Lens device and television camera

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55120006A (en) * 1979-03-08 1980-09-16 Canon Inc Focus adjsutment operating force balance mechanism in photographic lens
JPS58154822A (en) * 1982-03-10 1983-09-14 Fuji Photo Optical Co Ltd Preventing mechanism for natural movement of zoom lens
JP2012048178A (en) * 2010-08-30 2012-03-08 Fujifilm Corp Lens device and television camera

Also Published As

Publication number Publication date
JPS59810B2 (en) 1984-01-09

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