KR950001381A - Zoom lens barrel - Google Patents

Zoom lens barrel Download PDF

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Publication number
KR950001381A
KR950001381A KR1019940012703A KR19940012703A KR950001381A KR 950001381 A KR950001381 A KR 950001381A KR 1019940012703 A KR1019940012703 A KR 1019940012703A KR 19940012703 A KR19940012703 A KR 19940012703A KR 950001381 A KR950001381 A KR 950001381A
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KR
South Korea
Prior art keywords
lens
guide
lens group
groove
optical axis
Prior art date
Application number
KR1019940012703A
Other languages
Korean (ko)
Other versions
KR100297185B1 (en
Inventor
기요사다 마찌다
히데노리 미야모또
Original Assignee
오노 시게오
가부시끼가이샤 니콘
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Publication date
Application filed by 오노 시게오, 가부시끼가이샤 니콘 filed Critical 오노 시게오
Publication of KR950001381A publication Critical patent/KR950001381A/en
Application granted granted Critical
Publication of KR100297185B1 publication Critical patent/KR100297185B1/en

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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
    • G02B7/10—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification by relative axial movement of several lenses, e.g. of varifocal objective lens

Abstract

본 발명의 목적은 간단하고 소형인 구조를 가지며, 단축(shortening) 또는 캠홈의 밸러 침동 홈부를 사용하지 않고 캠홈사이의 간섭을 방지할 수 있으며, 구동 하중을 감소시킬 수 있는 줌 렌즈 배럴을 제공하는 것이다.SUMMARY OF THE INVENTION An object of the present invention is to provide a zoom lens barrel having a simple and compact structure, which can prevent the interference between cam grooves without shortening or using the baller indentation groove portion of the cam groove, and can reduce the driving load. will be.

상기 목적을 성취하기 위하여, 합성 집점 거리가 광축을 따라 렌즈 그룹을 왕복시킬 때 복수의 렌즈 그룹 사이의 거리를 변화시킴으로써 변화되는 줌 렌즈 배럴은 상기 광축과 평행하게 정렬된 복수의 안내홈과, 렌즈 그룹을 유지하고 상기 안내홈을 따라 렌즈 그룹을 왕복시키기 위한 렌즈 홀러상에 삽입된 결합핀을 가진 직진 안내관과, 상기 렌즈 그룹을 왕복시키고 직진 안내관 상에 회전가능하게 장착되고 렌즈 그룹을 수용하기 위하여 내주면 내에 형성된 복수의 캠홈을 갖는 줌 캠링과 적어도 하나의 렌즈 그룹을 필림면과 평행하게 안내하기 위하여 직진 안내란의 안내홈의 필름 측단부로부터 연장되고 배럴 침동시 각 안내홈에 대응하는 캠홈의 필름 측단부를 중첩시키는 전방 단부를 갖는 평행 홈을 포함한다.In order to achieve the above object, a zoom lens barrel whose synthetic focal length is changed by changing the distance between a plurality of lens groups when reciprocating a lens group along an optical axis includes a plurality of guide grooves aligned in parallel with the optical axis, and a lens; A straight guide tube having a coupling pin inserted on a lens holder for retaining the group and reciprocating the lens group along the guide groove, and rotatably mounted on the straight guide tube to accommodate the lens group In order to guide the zoom cam ring having a plurality of cam grooves formed in the inner circumferential surface and at least one lens group parallel to the film surface, the cam grooves extend from the film side ends of the guide grooves in the straight guide column and correspond to the respective guide grooves when the barrel is invaded. A parallel groove having a front end overlapping the film side end of the film.

Description

줌 렌즈 배럴Zoom lens barrel

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제 1 도는 본 발명에 관계된 줌 렌즈 배럴(zoom lens barrel)의 일 실시예를 도시하는 침동상태(sinking state)의 개략 단면도, 제 2 도는 넓은 각도 상태에 있는 제 1 도의 실시예의 개략 단면도, 제 3 도는 망원 촬영 상태(telephotographic state)에 있는 제 1 도의 실시예의 개략 단면도.1 is a schematic cross-sectional view of a sinking state showing one embodiment of a zoom lens barrel according to the present invention; FIG. 2 is a schematic cross-sectional view of the embodiment of FIG. 1 in a wide angle state; A schematic cross-sectional view of the embodiment of FIG. 1 in a telephotographic state.

Claims (2)

간극으로 정렬된 복수의 렌즈 그룹을 가지고 합성 집점거리(compound focal length)와 광축을 제공하는 줌 렌즈 배럴(barrel)에서, 상기 합성 접점 거리를 변하게 하도록 광축을 따라 상기 렌즈 그룹을 왕복시키는 것에 의하여 상기 렌즈 그룹 사이의 간극이 변하는 줌 렌즈 배럴에 있어서, 적어도 하나의 안내홈으로 형성된 외주면을 가지며, 상기 렌즈 그룹을 유지하기 위하여 렌즈 홀더상에 제공되는 상기 안내홈을 결합핀내에 미끄럼 가능하게 삽입되며, 필름 측단부를 가지는 안내홈을 따라 왕복 가능한 직진 안내관과, 상기 직진 안내란 상에 회전가능하게 장착되고 렌즈 그룹을 지지하기 위한 렌즈 홀더의 결합핀 사이에 결합되며 필름측 단부를 가지는 적어도 하나의 캠홈으로 형성된 내주면을 가지며, 상기 렌즈 그룹을 왕복 운동시키는 줌 캠링(zoom camring)과, 적어도 하나의 렌즈 그룹을 안내하기 위하여 안내홈의 필름 측단부로부터 필름면과 거의 평행하게 연장되고, 상기 줌 렌즈 배럴이 배럴 침동 상태(sinking state)에 있을 때 상기 각 안내 홈에 대응하는 캠홈층에 하나의 캠홈의 필름 측단부를 중첩하는 전방 단부를 갖는 평행한 홈을 포함하는 것을 특징으로 하는 줌 렌즈 배럴.In a zoom lens barrel having a plurality of lens groups aligned in a gap and providing a compound focal length and an optical axis, the lens group is reciprocated along the optical axis to vary the composite contact distance. A zoom lens barrel in which a gap between lens groups is changed, the zoom lens barrel having an outer circumferential surface formed of at least one guide groove, the guide groove provided on the lens holder for holding the lens group is slidably inserted into a coupling pin, At least one having a film-side end coupled between a straight guide tube reciprocating along a guide groove having a film side end and a coupling pin of a lens holder rotatably mounted on the straight guide column and supporting a lens group A zoom camring having an inner circumferential surface formed by a cam groove and reciprocating the lens group A cam groove layer corresponding to each guide groove when the zoom lens barrel is in a barrel sinking state, extending substantially parallel to the film surface from the film side end of the guide groove to guide at least one lens group; And a parallel groove having a front end overlapping the film side end of one cam groove. 적어도 2개의 렌즈 그룹과, 광축과, 상기 광축을 따라 렌즈 그룹을 안내하기 위한 직진 안내관 및 상기 광축을 따라 렌즈 그룹을 왕복하기 위한 캠관을 포함하는 줌 렌즈 배럴에 있어서, 상기 줌 렌즈 배럴은 안내관의 필름 측단부사이에 형성된 안내부를 포함하고, 필름면과 평행하게 연장되는 것을 특징으로 하는 줌 렌즈 배럴.A zoom lens barrel comprising at least two lens groups, an optical axis, a straight guide tube for guiding a lens group along the optical axis, and a cam tube for reciprocating a lens group along the optical axis, wherein the zoom lens barrel is guided. A zoom lens barrel comprising a guide portion formed between the film side ends of the tube and extending in parallel with the film surface. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019940012703A 1993-06-07 1994-06-07 Zoom Lens Barrel KR100297185B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP93-160036 1993-06-07
JP5160036A JPH06347687A (en) 1993-06-07 1993-06-07 Zooming type lens barrel

Publications (2)

Publication Number Publication Date
KR950001381A true KR950001381A (en) 1995-01-03
KR100297185B1 KR100297185B1 (en) 2001-10-24

Family

ID=15706558

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019940012703A KR100297185B1 (en) 1993-06-07 1994-06-07 Zoom Lens Barrel

Country Status (4)

Country Link
JP (1) JPH06347687A (en)
KR (1) KR100297185B1 (en)
CN (1) CN1064133C (en)
TW (1) TW238361B (en)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003139567A (en) * 2001-11-06 2003-05-14 Nikon Corp Displacement detection device and lens barrel
JP4233394B2 (en) * 2003-06-17 2009-03-04 オリンパス株式会社 Lens device and digital camera using the same
TWI297709B (en) 2003-07-08 2008-06-11 Canon Kk Lens barrel
JP4571811B2 (en) * 2004-02-16 2010-10-27 Ｈｏｙａ株式会社 Lens barrel cam mechanism
JP2005351982A (en) * 2004-06-08 2005-12-22 Canon Inc Zoom lens barrel and camera
JP4645274B2 (en) * 2005-04-08 2011-03-09 ソニー株式会社 LENS DEVICE AND IMAGING DEVICE
CN100451820C (en) * 2005-07-05 2009-01-14 明基电通股份有限公司 Optical machine module with lens multiplying factor regulation function
JP2008134569A (en) * 2006-11-29 2008-06-12 Chinontec Kk Lens barrel and projector device
CN101201439B (en) * 2006-12-13 2010-05-19 鸿富锦精密工业（深圳）有限公司 Lens module
JP5049605B2 (en) 2007-01-29 2012-10-17 パナソニック株式会社 Cylindrical molded products, lens barrels, cameras and injection molds
JP2008224795A (en) * 2007-03-09 2008-09-25 Ricoh Co Ltd Lens barrel and personal digital assistant system
JP5561475B2 (en) * 2010-04-28 2014-07-30 Ｓｍｃ株式会社 Double acting mechanism
CN103163620B (en) * 2011-12-16 2015-01-07 佳能企业股份有限公司 Lens mechanism
US11523034B2 (en) * 2016-02-10 2022-12-06 Microsoft Technology Licensing, Llc Imaging apparatus
CN110174754B (en) * 2019-06-18 2024-03-05 福建福光天瞳光学有限公司 High zoom continuous zoom lens and focusing method
EP4176172A1 (en) 2020-07-06 2023-05-10 YourBrook Energy Systems Ltd. Turbine with dynamic blades

Also Published As

Publication number Publication date
JPH06347687A (en) 1994-12-22
CN1106927A (en) 1995-08-16
KR100297185B1 (en) 2001-10-24
TW238361B (en) 1995-01-11
CN1064133C (en) 2001-04-04

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