JPS5614209A - Lens barrel of zoom lens - Google Patents

Lens barrel of zoom lens

Info

Publication number
JPS5614209A
JPS5614209A JP9074279A JP9074279A JPS5614209A JP S5614209 A JPS5614209 A JP S5614209A JP 9074279 A JP9074279 A JP 9074279A JP 9074279 A JP9074279 A JP 9074279A JP S5614209 A JPS5614209 A JP S5614209A
Authority
JP
Japan
Prior art keywords
intermediate member
ring
lens
backward
lens group
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.)
Pending
Application number
JP9074279A
Other languages
Japanese (ja)
Inventor
Akiyasu Washimi
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 JP9074279A priority Critical patent/JPS5614209A/en
Publication of JPS5614209A publication Critical patent/JPS5614209A/en
Pending legal-status Critical Current

Links

Landscapes

  • Lens Barrels (AREA)

Abstract

PURPOSE: To make the lens compact and sufficiently strong by providing an intermediate member which screws together a zooming member and a holding member for the 1st optical system and so constituting these that the 1st optical system is mov ed rectilinearly by the intermediate member at the zooming.
CONSTITUTION: The 1st lens group 1 and a distance ring 3 are integrally coupled and are coupled to an intermediate member 5 having screws on its inside and outside circumferences because the screws 5a and 3a on its inside circumferential side are intermeshed. The intermediate member 5 fits into linear guide grooves 8a, by which its rotatin direction is defined. The screw 5b of its outside circumferential surface is intermeshed with the screw 4a existing on the inside circumference of a zoom ring 4. Hence, if the zoom ring 4 is rotated, the intermediate member 5 moves rectilinearly forward or backward in the optical axis direction, causing the 1st lens group 1 and the distance ring 3 to move rectilinearly forward and backward as well. When the distance ring 3 is rotated, only the ring 3 and lens group 1 move rectilinearly forward and backward.
COPYRIGHT: (C)1981,JPO&Japio
JP9074279A 1979-07-17 1979-07-17 Lens barrel of zoom lens Pending JPS5614209A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9074279A JPS5614209A (en) 1979-07-17 1979-07-17 Lens barrel of zoom lens

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9074279A JPS5614209A (en) 1979-07-17 1979-07-17 Lens barrel of zoom lens

Publications (1)

Publication Number Publication Date
JPS5614209A true JPS5614209A (en) 1981-02-12

Family

ID=14007029

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9074279A Pending JPS5614209A (en) 1979-07-17 1979-07-17 Lens barrel of zoom lens

Country Status (1)

Country Link
JP (1) JPS5614209A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5920530U (en) * 1982-07-30 1984-02-08 オムロン株式会社 push button switch

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5920530U (en) * 1982-07-30 1984-02-08 オムロン株式会社 push button switch
JPH0142897Y2 (en) * 1982-07-30 1989-12-14

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