JPS62110929U - - Google Patents
Info
- Publication number
- JPS62110929U JPS62110929U JP20470985U JP20470985U JPS62110929U JP S62110929 U JPS62110929 U JP S62110929U JP 20470985 U JP20470985 U JP 20470985U JP 20470985 U JP20470985 U JP 20470985U JP S62110929 U JPS62110929 U JP S62110929U
- Authority
- JP
- Japan
- Prior art keywords
- item
- aperture
- magnet rotor
- unit according
- rotor
- 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
- 239000011248 coating agent Substances 0.000 claims 1
- 238000000576 coating method Methods 0.000 claims 1
- 230000004907 flux Effects 0.000 claims 1
- 230000003287 optical effect Effects 0.000 claims 1
- 239000000126 substance Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Diaphragms For Cameras (AREA)
Description
第１図乃至第３図は従来技術を説明する図、第
４図は本考案の絞りユニツトの断面図、第５図は
第４図の分解斜視図、第６図、第７図は第４図の
平面図で、第６図は絞りが絞り込まれた状態を、
第７図は開放状態を示している。第８図、第９図
は本考案の他の実施例を示す図である。
１０５：ローター、１０７：絞り羽根、１１０
：ボールレース、１１１：ボール、１１２：コイ
ル、１１３：ヨーク、１１４：ボビン、１１５：
蜂の巣、１１６：押え環、１１７，１１８，１１
９：止めビス、１２０：開放信号スイツチ。
1 to 3 are diagrams explaining the prior art, FIG. 4 is a sectional view of the aperture unit of the present invention, FIG. 5 is an exploded perspective view of FIG. 4, and FIGS. In the plan view of the figure, Figure 6 shows the state where the aperture is narrowed down,
FIG. 7 shows the open state. FIGS. 8 and 9 are diagrams showing other embodiments of the present invention. 105: Rotor, 107: Aperture blade, 110
: Ball lace, 111: Ball, 112: Coil, 113: Yoke, 114: Bobbin, 115:
Beehive, 116: Presser ring, 117, 118, 11
9: Set screw, 120: Open signal switch.
Claims (1)
トローターの内側又は外側に界磁コイル及びヨー
クからなるステータを配し、前記マグネツトロー
ターの光軸平行方向に絞り羽根と前記絞り羽根の
開き量を決めるカムを形成したカム部材を配した
レンズ鏡筒に、前記ステータ又は前記レンズ鏡筒
の固定部材に前記絞り羽根の開放位置を検知する
スイツチ手段を固定し前記スイツチ手段は前記マ
グネツトローターの回転によつて開閉制御するよ
うにしたことを特徴とする絞りユニツト。 (2) 前記リング状マグネツトローターの一端に
前記スイツチ手段を開閉作動する突起部を設けた
ことを特徴とする第１項記載の絞りユニツト。 (3) 第２項記載のマグネツトローターの突起部
と、絞りユニツトと連動するマグネツトローター
の連動部との位相が一致していることを特徴とす
る第１項記載の絞りユニツト。 (4) 前記マグネツトローターの突起部が磁極を
もつていることを特徴とする第１項記載の絞りユ
ニツト。 (5) 前記マグネツトローターの突起部に反射率
の高いコーテイングもしくは反射率の高い物質を
はりつけたことを特徴とする第１項記載の絞りユ
ニツト。[Claims for Utility Model Registration] (1) A stator consisting of a field coil and a yoke is disposed inside or outside of a ring-shaped magnetic rotor through which the subject light flux passes, and an aperture is arranged in a direction parallel to the optical axis of the magnetic rotor. A switch means for detecting an open position of the aperture blades is fixed to the stator or a fixed member of the lens barrel to a lens barrel having a cam member formed with a cam that determines the opening amount of the aperture blades and the aperture blades. A diaphragm unit characterized in that the switch means is controlled to open and close by rotation of the magnet rotor. (2) The aperture unit according to item 1, characterized in that a protrusion for opening and closing the switch means is provided at one end of the ring-shaped magnetic rotor. (3) The diaphragm unit according to item 1, wherein the protruding portion of the magnet rotor according to item 2 is in phase with the interlocking portion of the magnet rotor that interlocks with the diaphragm unit. (4) The aperture unit according to item 1, wherein the projection of the magnet rotor has a magnetic pole. (5) The diaphragm unit according to item 1, wherein a highly reflective coating or a highly reflective substance is pasted on the protrusion of the magnet rotor.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20470985U JPS62110929U (en) | 1985-12-27 | 1985-12-27 | |
| US06/825,191 US4695145A (en) | 1985-02-07 | 1986-02-03 | Motor built-in lens mounting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20470985U JPS62110929U (en) | 1985-12-27 | 1985-12-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62110929U true JPS62110929U (en) | 1987-07-15 |
Family
ID=31170706
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20470985U Pending JPS62110929U (en) | 1985-02-07 | 1985-12-27 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62110929U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6039033B2 (en) * | 1977-04-25 | 1985-09-04 | ブラザー工業株式会社 | printer |
-
1985
- 1985-12-27 JP JP20470985U patent/JPS62110929U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6039033B2 (en) * | 1977-04-25 | 1985-09-04 | ブラザー工業株式会社 | printer |
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