JPS58131030U - Structure of aperture linking device in lens - Google Patents
Structure of aperture linking device in lensInfo
- Publication number
- JPS58131030U JPS58131030U JP391283U JP391283U JPS58131030U JP S58131030 U JPS58131030 U JP S58131030U JP 391283 U JP391283 U JP 391283U JP 391283 U JP391283 U JP 391283U JP S58131030 U JPS58131030 U JP S58131030U
- Authority
- JP
- Japan
- Prior art keywords
- control cam
- cam ring
- ring
- fixed
- lens
- 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
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図は実施例を示す断面図、第２図ａはレンズ保持筒
５の形状を示す平面図、第２図すは絞り制御リングの形
状を示す平面図、第３図は第１図Ｉ−Ｉ線に沿う断面図
である。
１：鏡胴固定部、２：締付環、３：固定筒、４：回転ヘ
リコイド、５：保持筒、６：キー、７：Ｌ／ンズ枠、８
．９：抑え環、１０：距離環、１２：前枠、１４：絞り
羽根保持環、１６：絞り駆動環、１７：ベルクランク、
１８：絞り制御用カムリング、２１：絞り込みリング、
２２ニブリセツトリング。FIG. 1 is a sectional view showing the embodiment, FIG. 2a is a plan view showing the shape of the lens holding cylinder 5, FIG. 2 is a plan view showing the shape of the aperture control ring, and FIG. - It is a sectional view along the I line. 1: Lens barrel fixing part, 2: Tightening ring, 3: Fixed barrel, 4: Rotating helicoid, 5: Holding barrel, 6: Key, 7: L/lens frame, 8
．． 9: Holding ring, 10: Distance ring, 12: Front frame, 14: Aperture blade holding ring, 16: Aperture drive ring, 17: Bell crank,
18: Cam ring for aperture control, 21: Aperture ring,
22 nib reset ring.
Claims (1)
御用カムリングを有する撮影レンズにおいて、 前記固定筒の筒周面に間隔をあけて鍔状の係合部を設け
、 前記制御用カムリングに保合部と切欠部を形成し、 前記制御用カムリングの切欠部に前記固定筒の係合部を
挿通して前記制御用カムリングの保合部と固定筒の保合
部を係合して前記固定筒に前記制御用カムリングを光軸
まわり回動可能に嵌装するとともに、 前記制御用カムリングに光軸まわり一定方向に働く附勢
力を作用させて前記制御用カムリングと前記固定筒の各
係合部を係合させて前記制御用カムリングを光軸に沿う
方向の移動を阻止するように保ち、 前記制御用カムリングと前記固定筒の保合部の係合する
範囲内にて前記制御用カムリングの回動を行うように構
成したことを特徴とするレンズに於ける絞り連動装置の
構造。[Scope of Claim for Utility Model Registration] A photographic lens having a fixed barrel having a photographing optical path, an aperture setting ring, and a control cam ring that works in conjunction with the aperture setting ring to preset a fringe value, wherein a space is provided on the circumferential surface of the fixed barrel. a flange-shaped engagement part is provided in the control cam ring, a retaining part and a notch are formed in the control cam ring, and the engagement part of the fixed cylinder is inserted into the control cam ring to insert the control cam ring into the control cam ring. The control cam ring is fitted into the fixed cylinder so as to be rotatable around the optical axis by engaging the locking part of the fixed cylinder with the locking part of the fixed cylinder, and the control cam ring is fitted with an attachment that acts in a fixed direction around the optical axis. Applying a force to engage each engaging portion of the control cam ring and the fixed barrel to keep the control cam ring from moving in the direction along the optical axis; A structure of an aperture interlocking device for a lens, characterized in that the control cam ring is configured to rotate within an engagement range of the retaining portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP391283U JPS58131030U (en) | 1983-01-13 | 1983-01-13 | Structure of aperture linking device in lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP391283U JPS58131030U (en) | 1983-01-13 | 1983-01-13 | Structure of aperture linking device in lens |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58131030U true JPS58131030U (en) | 1983-09-05 |
Family
ID=30016794
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP391283U Pending JPS58131030U (en) | 1983-01-13 | 1983-01-13 | Structure of aperture linking device in lens |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58131030U (en) |
-
1983
- 1983-01-13 JP JP391283U patent/JPS58131030U/en active Pending
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