JPH0345531U - - Google Patents
Info
- Publication number
- JPH0345531U JPH0345531U JP10759189U JP10759189U JPH0345531U JP H0345531 U JPH0345531 U JP H0345531U JP 10759189 U JP10759189 U JP 10759189U JP 10759189 U JP10759189 U JP 10759189U JP H0345531 U JPH0345531 U JP H0345531U
- Authority
- JP
- Japan
- Prior art keywords
- shutter blade
- lens
- signal
- closed position
- type motor
- 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
- 230000003287 optical effect Effects 0.000 claims description 5
- 238000001514 detection method Methods 0.000 claims description 2
- 238000005259 measurement Methods 0.000 claims 3
Landscapes
- Shutters For Cameras (AREA)
- Shutter-Related Mechanisms (AREA)
Description
添付図面は本考案のシヤツター信号検出装置の
実施例の概略的説明図。
１，２……シヤツター羽根、３……地板、４…
…ムービングマグネツト型モーター、５……作動
ピン、７……ばね、８……レンズ繰出しリング、
８ｃ……カム、１３……アクチユエーター、１５
……作動ピン、１６……光学的センサー、１７…
…シヤツター羽根の突起部。
The accompanying drawings are schematic illustrations of embodiments of the shutter signal detection device of the present invention. 1, 2...Shutter blade, 3...Main plate, 4...
...Moving magnet type motor, 5... Operating pin, 7... Spring, 8... Lens feeding ring,
8c...Cam, 13...Actuator, 15
... Actuation pin, 16 ... Optical sensor, 17 ...
...The protrusion of the shutter blade.
Claims (1)
ト型モーターと、光軸廻りに回動されるレンズ繰
出し部材を駆動するアクチユエーターとを有し、
前記ムービングマグネツト型モーターの往復運動
によりシヤツター羽根を開閉させ、前記レンズ繰
出し部材の所定の回転によりレンズの焦点合せを
行うカメラに於て、前記レンズ繰出し部材に形成
され、シヤツター羽根を閉鎖方向に附勢するばね
力に抗して前記ムービングマグネツト型モーター
に取付けた作動ピンを係止してシヤツター羽根を
所定の閉鎖位置に保持するカムと、シヤツター羽
根に形成した突起部と協働し、シヤツター羽根が
前記所定の閉鎖位置に来る時に閉鎖信号を発生し
、前記所定の閉鎖位置から外れた時に開放信号を
発生する光学的センサーとより成り、前記カムの
形状が、レリーズ操作により、シーケンス駆動回
路に設定された測距信号によつて前記アクチユエ
ーターを介して前記レンズ繰出し部材が作動され
る初期に於て前記カムが前記作動ピンの係止を解
除して前記ばね力によりシヤツター羽根を前記所
定の閉鎖位置から更に閉鎖方向に移動させ、レン
ズスタート信号として開放信号を発生すると共に
前記レンズ繰出し部材の作動の終了時に於ける駆
動回路のシーケンス信号による前記ムービングマ
グネツト型モーターの附勢によりシヤツター羽根
を前記ばね力に抗して開放方向に起動させ、その
際前記所定の閉鎖位置に来た時に前記光学的セン
サーが前記突起部により電気的秒時計測トリガー
信号として閉鎖信号を発生するようになされて単
一の光学的センサーによりレンズスタート信号及
びシヤツター羽根閉鎖作動の電気的秒時計測トリ
ガー信号の両者を検出可能となしたことを特徴と
するシヤツター信号検出装置。 It has a moving magnet type motor that drives a shutter blade, and an actuator that drives a lens extending member that rotates around the optical axis.
In a camera in which the shutter blade is opened and closed by the reciprocating motion of the moving magnet type motor, and the lens is focused by a predetermined rotation of the lens extension member, the shutter blade is formed on the lens extension member and moves the shutter blade in the closing direction. a cam that locks an actuating pin attached to the moving magnet type motor against an energizing spring force and holds the shutter blade in a predetermined closed position; and a protrusion formed on the shutter blade that cooperates with each other; an optical sensor that generates a closing signal when the shutter blade comes to the predetermined closed position and generates an opening signal when the shutter blade deviates from the predetermined closed position; In the initial stage when the lens extending member is actuated via the actuator in response to a distance measurement signal set in the circuit, the cam releases the locking of the actuating pin and causes the shutter blade to be moved by the spring force. The lens is further moved in the closing direction from the predetermined closed position, and an opening signal is generated as a lens start signal, and the moving magnet type motor is energized by a sequence signal of a drive circuit at the end of the operation of the lens feeding member. The shutter blade is actuated in the opening direction against the spring force, and when the shutter blade reaches the predetermined closed position, the optical sensor generates a closing signal as an electrical time measurement trigger signal by the protrusion. 1. A shutter signal detection device characterized in that a single optical sensor is capable of detecting both a lens start signal and an electrical time measurement trigger signal for shutter blade closing operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10759189U JPH0345531U (en) | 1989-09-13 | 1989-09-13 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10759189U JPH0345531U (en) | 1989-09-13 | 1989-09-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0345531U true JPH0345531U (en) | 1991-04-26 |
Family
ID=31656278
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10759189U Pending JPH0345531U (en) | 1989-09-13 | 1989-09-13 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0345531U (en) |
-
1989
- 1989-09-13 JP JP10759189U patent/JPH0345531U/ja active Pending
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