JPS59131703U - Lens barrel feeding device - Google Patents
Lens barrel feeding deviceInfo
- Publication number
- JPS59131703U JPS59131703U JP2425583U JP2425583U JPS59131703U JP S59131703 U JPS59131703 U JP S59131703U JP 2425583 U JP2425583 U JP 2425583U JP 2425583 U JP2425583 U JP 2425583U JP S59131703 U JPS59131703 U JP S59131703U
- Authority
- JP
- Japan
- Prior art keywords
- lens barrel
- optical axis
- holding
- feeding
- fixed
- 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
Links
Landscapes
- Lens Barrels (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
第1図は従来のレンズ鏡筒の一例を示す正面図である。
第2図〜第5図は本考案の一実施例を示し、第2図は正
面半断面図、第3図はその要部拡大部、第4図は正面図
、第5図は絞り駆動板の斜視図である。
〔主要部分の符号の説明〕、22・・・・・・固定鏡筒
、24・・・・・・光学系保持鏡筒、26・・・・・・
繰出環、28・・・・・・ピン、32・・・・・・らせ
んみぞ。
8 62 4
tt 1− 1FIG. 1 is a front view showing an example of a conventional lens barrel. Figures 2 to 5 show an embodiment of the present invention, with Figure 2 being a front half-sectional view, Figure 3 being an enlarged view of its main parts, Figure 4 being a front view, and Figure 5 being a diaphragm drive plate. FIG. [Description of symbols of main parts], 22...Fixed lens barrel, 24...Optical system holding lens barrel, 26...
Feeding ring, 28...pin, 32...spiral groove. 8 62 4 tt 1- 1
Claims (1)
と、光軸方向に移動可能とされた光学系保持鏡筒とを含
み、繰出環を回動操作することによって保持部材を光軸
方向に移動させるようになっているレンズ鏡筒において
、 前記光学系保持鏡筒を光軸方向に移動可能かつ光軸まわ
りに回動可能とし、該保持鏡筒と前記繰出環との間に連
動機構を請けて、該繰出環の回動操作に伴ない保持鏡筒
は光軸まわりに回動しつつ光軸方向に移動するようにし
たことを特徴とするレンズ鏡筒の繰出装置。 2 前記固定鏡筒、繰出環及び光学系保持部材は、固定
鏡筒を間にして外側に繰出環が、内側に保持鏡筒が配置
され、固定鏡筒に形成されたらせんみそと、保持鏡筒に
立設され該らせんみぞを貫通後繰出環に連結されたピン
とによって前記連動機構が構成されている実用新案登録
請求の範囲第1項に記載のレンズ鏡筒の繰出装置。 3 前記保持鏡筒には、移動部材が、該保持鏡筒と光軸
方向には一体的に移動するが、保持鏡筒が光軸まわりに
回動してもこれに連れ回らないように取り付けられ、か
つ該移動部材は固定鏡筒との間に掛は渡された付勢部材
によって光軸方向の一方向に付勢されている実用新案登
録請求の範囲第2項に記載のレンズ鏡筒の繰出装置′。 −4前記光学系保持鏡筒は可変絞り機構部を有し、
かつ固定鏡筒に固定されて絞り径を調整する絞り調整板
はらせん形状とされている実用新案登録請求の範囲第2
項に記載のレンズ鏡筒の繰出装置。[Claims for Utility Model Registration] 1. Includes a fixed lens barrel, a feeding ring that is rotatable around the optical axis, and an optical system holding lens barrel that is movable in the direction of the optical axis. In the lens barrel in which the holding member is moved in the optical axis direction by a mechanical operation, the optical system holding barrel is movable in the optical axis direction and rotatable around the optical axis, and the holding member is An interlocking mechanism is provided between the barrel and the feeding ring, so that the holding lens barrel rotates around the optical axis and moves in the optical axis direction as the feeding ring rotates. A device for feeding out the lens barrel. 2. The fixed lens barrel, the extending ring, and the optical system holding member are arranged such that the extending ring is arranged on the outside with the fixed lens barrel in between, and the holding lens barrel is arranged on the inside, and the spiral groove formed on the fixed lens barrel and the holding mirror are arranged in the fixed lens barrel. 2. The lens barrel feeding device according to claim 1, wherein the interlocking mechanism is constituted by a pin which is provided upright in the tube and is connected to the feeding ring after passing through the spiral groove. 3. The moving member is attached to the holding lens barrel so that it moves integrally with the holding lens barrel in the optical axis direction, but does not rotate with the holding lens barrel when it rotates around the optical axis. and the movable member is biased in one direction in the optical axis direction by a biasing member disposed between the movable member and the fixed lens barrel. feeding device′. -4 The optical system holding lens barrel has a variable diaphragm mechanism,
In addition, the aperture adjusting plate fixed to the fixed lens barrel and adjusting the aperture diameter has a spiral shape.
The lens barrel feeding device described in 2.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2425583U JPS59131703U (en) | 1983-02-23 | 1983-02-23 | Lens barrel feeding device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2425583U JPS59131703U (en) | 1983-02-23 | 1983-02-23 | Lens barrel feeding device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS59131703U true JPS59131703U (en) | 1984-09-04 |
Family
ID=30155300
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2425583U Pending JPS59131703U (en) | 1983-02-23 | 1983-02-23 | Lens barrel feeding device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS59131703U (en) |
-
1983
- 1983-02-23 JP JP2425583U patent/JPS59131703U/en active Pending
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