JPS59121614U - Lens switching mechanism - Google Patents

Lens switching mechanism

Info

Publication number
JPS59121614U
JPS59121614U JP1523583U JP1523583U JPS59121614U JP S59121614 U JPS59121614 U JP S59121614U JP 1523583 U JP1523583 U JP 1523583U JP 1523583 U JP1523583 U JP 1523583U JP S59121614 U JPS59121614 U JP S59121614U
Authority
JP
Japan
Prior art keywords
projection
lens
switching mechanism
lenses
lens switching
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
JP1523583U
Other languages
Japanese (ja)
Inventor
保井　武秋
Original Assignee
富士写真フイルム株式会社
富士マイクログラフイツクス株式会社
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 富士写真フイルム株式会社, 富士マイクログラフイツクス株式会社 filed Critical 富士写真フイルム株式会社
Priority to JP1523583U priority Critical patent/JPS59121614U/en
Publication of JPS59121614U publication Critical patent/JPS59121614U/en
Pending legal-status Critical Current

Links

Landscapes

  • Lens Barrels (AREA)
  • Lenses (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 drawings]

第１図は従来のレンズ切換え機構の一例を示す斜視図、
第２図は本考案の一実施例の概要を示す一部断面側面図
、第３図はガイドレールの詳細図である。 １、ＩＡ：支持部、２Ａ、　　２Ｂ：投影レンズ、３Ａ
。 ３Ｂ＝集光レンズ、４ニガイドレール、Ｌ：光源、Ｆ：
マイクロフィルム、Ａ：光軸位置、Ｓ：ストッパ。FIG. 1 is a perspective view showing an example of a conventional lens switching mechanism.
FIG. 2 is a partially sectional side view showing an outline of an embodiment of the present invention, and FIG. 3 is a detailed view of the guide rail. 1, IA: Support part, 2A, 2B: Projection lens, 3A
. 3B = condensing lens, 4 guide rails, L: light source, F:
Microfilm, A: optical axis position, S: stopper.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 投影倍率の異なる複数の投影レンズおよび該投影レンズ
のそれぞれに対応する集光レンズを組合わせて切換える
レンズ切換え機構において、前記各レンズを支承するホ
ルダを係止部材を介して互いに係合させるとともに、少
なくとも前記投影レンズが光軸上で被投影材料上に載置
される如く該投影レンズのホルダを案内する位置決めガ
イド部材を設けて、前記各レンズを支承するホルダを直
接または前記係止部材を介して駆動し前記位置決めガイ
ド部材に沿って移動させる如く構成したことを特徴とす
るレンズ切換え機構。In a lens switching mechanism that combines and switches a plurality of projection lenses with different projection magnifications and condensing lenses corresponding to each of the projection lenses, holders supporting the respective lenses are engaged with each other via a locking member, A positioning guide member is provided for guiding the holder of the projection lens so that at least the projection lens is placed on the projection material on the optical axis, and the holder supporting each of the lenses is guided directly or through the locking member. 1. A lens switching mechanism, characterized in that the lens switching mechanism is configured to be driven by a lens and moved along the positioning guide member.
JP1523583U 1983-02-04 1983-02-04 Lens switching mechanism Pending JPS59121614U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1523583U JPS59121614U (en) 1983-02-04 1983-02-04 Lens switching mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1523583U JPS59121614U (en) 1983-02-04 1983-02-04 Lens switching mechanism

Publications (1)

Publication Number Publication Date
JPS59121614U true JPS59121614U (en) 1984-08-16

Family

ID=30146568

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1523583U Pending JPS59121614U (en) 1983-02-04 1983-02-04 Lens switching mechanism

Country Status (1)

Country Link
JP (1) JPS59121614U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0640910U (en) * 1992-11-10 1994-05-31 オリンパス光学工業株式会社 Objective lens exchange mechanism
JP2008139530A (en) * 2006-12-01 2008-06-19 Seiko Epson Corp Projection optical system and projector

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0640910U (en) * 1992-11-10 1994-05-31 オリンパス光学工業株式会社 Objective lens exchange mechanism
JP2008139530A (en) * 2006-12-01 2008-06-19 Seiko Epson Corp Projection optical system and projector

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