JPS63135340U - - Google Patents

Info

Publication number
JPS63135340U
JPS63135340U JP2811887U JP2811887U JPS63135340U JP S63135340 U JPS63135340 U JP S63135340U JP 2811887 U JP2811887 U JP 2811887U JP 2811887 U JP2811887 U JP 2811887U JP S63135340 U JPS63135340 U JP S63135340U
Authority
JP
Japan
Prior art keywords
light shielding
annular groove
opening
lens barrel
shielding member
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
JP2811887U
Other languages
Japanese (ja)
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 filed Critical
Priority to JP2811887U priority Critical patent/JPS63135340U/ja
Publication of JPS63135340U publication Critical patent/JPS63135340U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Exposure Or Original Feeding In Electrophotography (AREA)
  • Variable Magnification In Projection-Type Copying Machines (AREA)

Description

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

第１図は本考案に係る遮光機構の要部構成説明
図、第２図はその使用状態を示す側面図、第３図
は従来機構の要部構成説明図、第４図はその使用
状態を示す側面図である。 遮光部材……１０、開口部……１２、レンズ鏡
筒……３０、環状溝……３１。 Fig. 1 is an explanatory diagram of the main part configuration of the light shielding mechanism according to the present invention, Fig. 2 is a side view showing its usage state, Fig. 3 is an explanatory diagram of the main part composition of the conventional mechanism, and Fig. 4 is its usage state. FIG. Light shielding member...10, opening...12, lens barrel...30, annular groove...31.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 光軸方向に移動するレンズ鏡筒の外周上に環状
溝を形成すると共に、遮光部材に前記環状溝の外
径より小さい径の開口部を形成し、該開口部を前
記環状溝に嵌着することにより前記遮光部材を前
記レンズ鏡筒に装着するよう構成したこと、を特
徴とする複写機の可変倍像形成装置用遮光機構。 An annular groove is formed on the outer periphery of a lens barrel that moves in the optical axis direction, and an opening with a diameter smaller than the outer diameter of the annular groove is formed in the light shielding member, and the opening is fitted into the annular groove. A light shielding mechanism for a variable magnification image forming apparatus of a copying machine, characterized in that the light shielding member is configured to be attached to the lens barrel.
JP2811887U 1987-02-27 1987-02-27 Pending JPS63135340U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2811887U JPS63135340U (en) 1987-02-27 1987-02-27

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2811887U JPS63135340U (en) 1987-02-27 1987-02-27

Publications (1)

Publication Number Publication Date
JPS63135340U true JPS63135340U (en) 1988-09-06

Family

ID=30830784

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2811887U Pending JPS63135340U (en) 1987-02-27 1987-02-27

Country Status (1)

Country Link
JP (1) JPS63135340U (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55159466A (en) * 1979-05-30 1980-12-11 Fuji Xerox Co Ltd Exposure device of electrophotographic copying machine
JPS5868064A (en) * 1981-10-19 1983-04-22 Canon Inc Variable power image forming device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55159466A (en) * 1979-05-30 1980-12-11 Fuji Xerox Co Ltd Exposure device of electrophotographic copying machine
JPS5868064A (en) * 1981-10-19 1983-04-22 Canon Inc Variable power image forming device

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