JPS5810707A - Lens barrel having moving mechanism for lens group - Google Patents

Lens barrel having moving mechanism for lens group

Info

Publication number
JPS5810707A
JPS5810707A JP10962881A JP10962881A JPS5810707A JP S5810707 A JPS5810707 A JP S5810707A JP 10962881 A JP10962881 A JP 10962881A JP 10962881 A JP10962881 A JP 10962881A JP S5810707 A JPS5810707 A JP S5810707A
Authority
JP
Japan
Prior art keywords
lens
cylinder
cam groove
guide pins
movement
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
JP10962881A
Other languages
Japanese (ja)
Inventor
Hiromi Ito
Original Assignee
Olympus 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 Olympus Optical Co Ltd filed Critical Olympus Optical Co Ltd
Priority to JP10962881A priority Critical patent/JPS5810707A/en
Publication of JPS5810707A publication Critical patent/JPS5810707A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
    • G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
    • G02B7/04—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification

Abstract

PURPOSE:To reduce the number of formed cam grooves, to reduce the man- hour for working and to improve the strength of a cylinder, by fitting guide pins, which are fixed to plural lens groups as one body, to one cam groove for movement commonly. CONSTITUTION:One cam groove 21 for movement to which guide pins 7 and 8 are fitted commonly and are guided is provided on a driving outside cylinder 11, which is fixed to a distance ring as one body, in the outside of an inside cylinder 6 and is so extended obliquely that this cam groove 21 intersects two guide grooves 19 and 20 for straight going formed on the inside cylinder 6. If the driving outside cylinder 11 is turned in the circumferential direction of an arrow A when two guide pins 7 and 8 are in right positions in guide grooves 19 and 20 respectively as shown by solid lines, guide pins 7 and 8 are moved in the direction of the optical axis of an arrow B by lengths L1 and L2 different from each other while being guided by the cam groove 21 for movement, and as a result, the interval between the first lens group 3 and the second lens group 5 is varied in the direction of the optical axis.
JP10962881A 1981-07-13 1981-07-13 Lens barrel having moving mechanism for lens group Pending JPS5810707A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10962881A JPS5810707A (en) 1981-07-13 1981-07-13 Lens barrel having moving mechanism for lens group

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10962881A JPS5810707A (en) 1981-07-13 1981-07-13 Lens barrel having moving mechanism for lens group

Publications (1)

Publication Number Publication Date
JPS5810707A true JPS5810707A (en) 1983-01-21

Family

ID=14515096

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10962881A Pending JPS5810707A (en) 1981-07-13 1981-07-13 Lens barrel having moving mechanism for lens group

Country Status (1)

Country Link
JP (1) JPS5810707A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63304217A (en) * 1987-06-04 1988-12-12 Nikon Corp Zoom lens barrel
JPS6433510A (en) * 1987-07-30 1989-02-03 Konishiroku Photo Ind Lens barrel of zoom lens
JP2007249250A (en) * 2007-07-09 2007-09-27 Fujifilm Corp Moving mechanism of lens

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5132635A (en) * 1974-09-14 1976-03-19 Tokina Optical Shikinkyorisatsueikanonazuumurenzukei

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5132635A (en) * 1974-09-14 1976-03-19 Tokina Optical Shikinkyorisatsueikanonazuumurenzukei

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63304217A (en) * 1987-06-04 1988-12-12 Nikon Corp Zoom lens barrel
JPS6433510A (en) * 1987-07-30 1989-02-03 Konishiroku Photo Ind Lens barrel of zoom lens
JP2007249250A (en) * 2007-07-09 2007-09-27 Fujifilm Corp Moving mechanism of lens

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