JPS6326831U - - Google Patents
Info
- Publication number
- JPS6326831U JPS6326831U JP11901486U JP11901486U JPS6326831U JP S6326831 U JPS6326831 U JP S6326831U JP 11901486 U JP11901486 U JP 11901486U JP 11901486 U JP11901486 U JP 11901486U JP S6326831 U JPS6326831 U JP S6326831U
- Authority
- JP
- Japan
- Prior art keywords
- shutter
- magnet
- fixed
- aperture
- focal plane
- 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.)
- Granted
Links
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Shutters For Cameras (AREA)
Description
第１図は本考案の１実施例にかかるフオーカル
プレーンシヤツタの平面図、第２図は第１図に示
すフオーカルプレーンシヤツタの電磁駆動部分を
中心に示した平面図、第３図は第１図及び第２図
に示すフオーカルプレーンシヤツタの制御回路例
を示す回路図。
１……シヤツタ地板、１ａ……アパーチユア、
２ａ，２ｂ，３ａ，３ｂ……シヤツタ羽根、１２
ａ，１３ｂ……マグネツト、１２ｂ，１３ｂ……
コイル、１２ｅ，１３ｅ……閉鎖ホールド用の吸
着ピン、１２ｆ，１３ｆ……開口ホールド用の吸
着ピン。
Fig. 1 is a plan view of a focal plane shutter according to an embodiment of the present invention, Fig. 2 is a plan view mainly showing the electromagnetic drive part of the focal plane shutter shown in Fig. 1, and Fig. 3. 2 is a circuit diagram showing an example of a control circuit for the focal plane shutter shown in FIGS. 1 and 2. FIG. 1... Shutter base plate, 1a... Aperture your,
2a, 2b, 3a, 3b... shutter blade, 12
a, 13b... Magnet, 12b, 13b...
Coil, 12e, 13e... Suction pin for closed hold, 12f, 13f... Suction pin for open hold.
Claims (1)
１のコイルを第１の方向に励磁した時に前記第１
のマグネツトと前記第１のコイル間に作用する電
磁力によつて、アパーチユアを閉鎖した状態にあ
る第１のシヤツタ羽根をアパーチユアを開口する
方向に走行させることにより、前記アパーチユア
を被写界光に露呈せしめ、 第２のマグネツトと電磁的に結合された第２の
コイルを第２の方向に励磁した時に前記第２のマ
グネツトと前記第２のコイル間に作用する電磁力
によつて、アパーチユアを開口した状態にある第
２のシヤツタ羽根をアパーチユアを閉鎖する方向
に走行させることにより、前記アパーチユアを被
写界光から遮蔽する様になされたフオーカルプレ
ーンシヤツタにおいて、 前記第１のマグネツトとの間に生じる電磁的吸
引力により前記第１のシヤツタ羽根を閉鎖状態で
ホールドする閉鎖ホールド部材と、 前記第２のマグネツトとの間に生じる電磁的吸
引力により前記第２のシヤツタ羽根を開口状態で
ホールドする開口ホールド部材と、 を設け、 前記第１のマグネツトと前記閉鎖ホールド部材
との間に生じる間に生じる電磁的吸引力を前記第
２のマグネツトと前記開口ホールド部材との間に
生じる電磁的吸引力よりも大ならしめたことを特
徴とするフオーカルプレーンシヤツタ。 (2) 実用新案登録請求の範囲第１項記載のフオ
ーカルプレーンシヤツタにおいて、 前記第１及び第２のマグネツトを各々対応する
前記第１及び第２のシヤツタ羽根の走行部材に対
して固定し、 前記第１及び第２のコイルをシヤツタ地板に対
して固定するとともに、 前記閉鎖ホールド部材及び前記開口ホールド部
材を前記シヤツタ地板に対して固定したことを特
徴とするフオーカルプレーンシヤツタ。 (3) 実用新案登録請求の範囲第１項記載のフオ
ーカルプレーンシヤツタにおいて、 前記第１及び第２のコイルを各々対応する前記
第１及び第２のシヤツタ羽根の走行部材に対して
固定し、 前記第１及び第２のマグネツトをシヤツタ地板
に対して固定するとともに、 前記閉鎖ホールド部材を前記第１のシヤツタ羽
根の走行部材に対して固定し、 前記開口ホールド部材を前記第２のシヤツタ羽
根の走行部材に対して固定したことを特徴とする
フオーカルプレーンシヤツタ。[Claims for Utility Model Registration] (1) When a first coil electromagnetically coupled to a first magnet is excited in a first direction, the first
The electromagnetic force acting between the magnet and the first coil causes the first shutter blade with the aperture closed to travel in the direction of opening the aperture, thereby exposing the aperture to field light. The aperture is exposed by an electromagnetic force acting between the second magnet and the second coil when a second coil electromagnetically coupled to the second magnet is excited in a second direction. A focal plane shutter configured to shield the aperture from field light by running a second shutter blade in an open state in a direction that closes the aperture, wherein the second shutter blade is connected to the first magnet. A closing hold member that holds the first shutter blade in a closed state by an electromagnetic attraction force generated between the two, and the second shutter blade in an open state by an electromagnetic attraction force generated between the second magnet and the second shutter blade. an opening holding member for holding; and an electromagnetic attraction force generated between the first magnet and the closing holding member, and an electromagnetic attraction force generated between the second magnet and the opening holding member. Focal plane shutters are characterized by having greater suction power. (2) Utility model registration In the focal plane shutter described in claim 1, the first and second magnets are fixed to corresponding running members of the first and second shutter blades, respectively. A focal plane shutter, wherein the first and second coils are fixed to a shutter base plate, and the closing hold member and the opening hold member are fixed to the shutter base plate. (3) Utility model registration In the focal plane shutter according to claim 1, the first and second coils are fixed to corresponding running members of the first and second shutter blades, respectively. , the first and second magnets are fixed to the shutter base plate, the closing hold member is fixed to the running member of the first shutter blade, and the opening holding member is fixed to the second shutter blade. A focal plane shutter, characterized in that it is fixed to a running member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986119014U JPH0524900Y2 (en) | 1986-08-02 | 1986-08-02 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986119014U JPH0524900Y2 (en) | 1986-08-02 | 1986-08-02 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6326831U true JPS6326831U (en) | 1988-02-22 |
| JPH0524900Y2 JPH0524900Y2 (en) | 1993-06-24 |
Family
ID=31005999
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1986119014U Expired - Lifetime JPH0524900Y2 (en) | 1986-08-02 | 1986-08-02 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0524900Y2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002182269A (en) * | 2000-12-13 | 2002-06-26 | Nidec Copal Corp | Camera focal plane shutter |
| WO2016098453A1 (en) * | 2014-12-19 | 2016-06-23 | ソニー株式会社 | Shutter blade opening and closing device and imaging device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5699330A (en) * | 1980-01-10 | 1981-08-10 | Canon Inc | Electromagnetically driven shutter |
-
1986
- 1986-08-02 JP JP1986119014U patent/JPH0524900Y2/ja not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5699330A (en) * | 1980-01-10 | 1981-08-10 | Canon Inc | Electromagnetically driven shutter |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002182269A (en) * | 2000-12-13 | 2002-06-26 | Nidec Copal Corp | Camera focal plane shutter |
| WO2016098453A1 (en) * | 2014-12-19 | 2016-06-23 | ソニー株式会社 | Shutter blade opening and closing device and imaging device |
| US10718993B2 (en) | 2014-12-19 | 2020-07-21 | Sony Corporation | Blade opening and closing device and image pickup device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0524900Y2 (en) | 1993-06-24 |
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