JPS59176008U - Camera focal length variable device - Google Patents

Camera focal length variable device

Info

Publication number
JPS59176008U
JPS59176008U JP6851883U JP6851883U JPS59176008U JP S59176008 U JPS59176008 U JP S59176008U JP 6851883 U JP6851883 U JP 6851883U JP 6851883 U JP6851883 U JP 6851883U JP S59176008 U JPS59176008 U JP S59176008U
Authority
JP
Japan
Prior art keywords
lens system
focal length
sub
optical axis
photographing optical
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
JP6851883U
Other languages
Japanese (ja)
Other versions
JPS6347865Y2 (en
Inventor
幸雄 小川
Original Assignee
キヤノン株式会社
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 キヤノン株式会社 filed Critical キヤノン株式会社
Priority to JP6851883U priority Critical patent/JPS59176008U/en
Publication of JPS59176008U publication Critical patent/JPS59176008U/en
Application granted granted Critical
Publication of JPS6347865Y2 publication Critical patent/JPS6347865Y2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Lens Barrels (AREA)
  • Lenses (AREA)
  • Structure And Mechanism Of Cameras (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は従来例の可変焦点カメラの要部を概略的に示す
断面図で、Ａは標準撮影状態、Ｂは望遠撮影状態であり
、第２図は本考案に係る可変焦点カメラの一実施例の要
部を概略的に示す断面図で、Ａは標準撮影状態、Ｂは望
遠撮影状態である。 １・・・主レンズ系、２・・・主筒、３・・・主筒バー
、４・・・副レンズ系、５・・・エクステンダー、７・
・・無限調整ビス、８・・・回転リング、９・・・ばね
、１０・・・鏡筒ユニット、１１・・・シャッタ装置、
１２・・・支持バー、１３・・・保持枠板、１４・・・
案内バー、１５・・・カメラ本体、２０・・・エクステ
ンダーバー、２１・・・ばね、２２・・・調整ビス。FIG. 1 is a cross-sectional view schematically showing the main parts of a conventional variable focus camera, in which A is a standard photographing state, B is a telephoto photographing state, and FIG. 2 is an embodiment of a variable focus camera according to the present invention. It is a cross-sectional view schematically showing the main part of an example, where A is a standard photographing state and B is a telephoto photographing state. DESCRIPTION OF SYMBOLS 1... Main lens system, 2... Main cylinder, 3... Main cylinder bar, 4... Sub-lens system, 5... Extender, 7...
... Infinite adjustment screw, 8... Rotating ring, 9... Spring, 10... Lens barrel unit, 11... Shutter device,
12... Support bar, 13... Holding frame plate, 14...
Guide bar, 15...Camera body, 20...Extender bar, 21...Spring, 22...Adjustment screw.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 主レンズ系と副レンズ系とを有し、副レンズ系が副レン
ズ系支持部材に固着しているバーを中心として回動可能
に構成されており、主レンズ系の撮影光軸方向への移動
と連動して副レンズ系が撮影光軸上に出入りすることに
より少なくとも２種類の焦点距離に切換え可能な可変焦
点カメラにおいて、前記六−の撮影光軸方向の位置を微
調整可能に構成したことを特徴とする可変焦点カメラの
焦点調整機構。It has a main lens system and a sub lens system, and the sub lens system is configured to be rotatable around a bar fixed to the sub lens system support member, and the main lens system can be moved in the direction of the photographing optical axis. A variable focus camera capable of switching to at least two types of focal length by moving a sub-lens system in and out of the photographing optical axis in conjunction with the lens system, and configured to allow fine adjustment of the position in the direction of the photographing optical axis. A focus adjustment mechanism for a variable focus camera featuring:
JP6851883U 1983-05-10 1983-05-10 Camera focal length variable device Granted JPS59176008U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6851883U JPS59176008U (en) 1983-05-10 1983-05-10 Camera focal length variable device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6851883U JPS59176008U (en) 1983-05-10 1983-05-10 Camera focal length variable device

Publications (2)

Publication Number Publication Date
JPS59176008U true JPS59176008U (en) 1984-11-24
JPS6347865Y2 JPS6347865Y2 (en) 1988-12-09

Family

ID=30198688

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6851883U Granted JPS59176008U (en) 1983-05-10 1983-05-10 Camera focal length variable device

Country Status (1)

Country Link
JP (1) JPS59176008U (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6467590B2 (en) * 2013-05-21 2019-02-13 パナソニックＩｐマネジメント株式会社 Lens barrel

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3185061A (en) * 1962-08-13 1965-05-25 Leonard F Westphalen Multifocal camera
US3812509A (en) * 1972-04-14 1974-05-21 L Westphalen Multifocal adapter for cameras
JPS49125751U (en) * 1973-02-21 1974-10-28
JPS5276919A (en) * 1975-12-23 1977-06-28 Nitto Optical Camera containing focal length varying lens
JPS5388724A (en) * 1976-12-08 1978-08-04 Ibm Continuous reduction optical system
JPS5433027A (en) * 1977-08-19 1979-03-10 Nitto Optical Camera having focall distance changeeover lens
JPS5474733A (en) * 1977-11-28 1979-06-15 Ricoh Co Ltd Positioning device for moving optical system of optical device of copying machines
JPS5652709A (en) * 1979-10-08 1981-05-12 Canon Inc Focus control device of camera
JPS5688215U (en) * 1979-12-11 1981-07-15
JPS5728413U (en) * 1980-07-25 1982-02-15
JPS5746213A (en) * 1980-09-03 1982-03-16 Canon Inc Lens bodytube having safety device
JPS57146232A (en) * 1981-03-05 1982-09-09 Canon Inc Camera incorporating plural lenses

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53117100A (en) * 1977-03-23 1978-10-13 Nippon Unicar Co Ltd Manufacture of high elastic polyurethane foam

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3185061A (en) * 1962-08-13 1965-05-25 Leonard F Westphalen Multifocal camera
US3812509A (en) * 1972-04-14 1974-05-21 L Westphalen Multifocal adapter for cameras
JPS49125751U (en) * 1973-02-21 1974-10-28
JPS5276919A (en) * 1975-12-23 1977-06-28 Nitto Optical Camera containing focal length varying lens
JPS5388724A (en) * 1976-12-08 1978-08-04 Ibm Continuous reduction optical system
JPS5433027A (en) * 1977-08-19 1979-03-10 Nitto Optical Camera having focall distance changeeover lens
JPS5474733A (en) * 1977-11-28 1979-06-15 Ricoh Co Ltd Positioning device for moving optical system of optical device of copying machines
JPS5652709A (en) * 1979-10-08 1981-05-12 Canon Inc Focus control device of camera
JPS5688215U (en) * 1979-12-11 1981-07-15
JPS5728413U (en) * 1980-07-25 1982-02-15
JPS5746213A (en) * 1980-09-03 1982-03-16 Canon Inc Lens bodytube having safety device
JPS57146232A (en) * 1981-03-05 1982-09-09 Canon Inc Camera incorporating plural lenses

Also Published As

Publication number Publication date
JPS6347865Y2 (en) 1988-12-09

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