JPS6124699B2 - - Google Patents
Info
- Publication number
- JPS6124699B2 JPS6124699B2 JP56208903A JP20890381A JPS6124699B2 JP S6124699 B2 JPS6124699 B2 JP S6124699B2 JP 56208903 A JP56208903 A JP 56208903A JP 20890381 A JP20890381 A JP 20890381A JP S6124699 B2 JPS6124699 B2 JP S6124699B2
- Authority
- JP
- Japan
- Prior art keywords
- state
- release
- camera
- timer
- eyepiece
- 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.)
- Expired
Links
- 230000000903 blocking effect Effects 0.000 claims 1
- 239000003990 capacitor Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000003213 activating effect Effects 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005375 photometry Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B17/00—Details of cameras or camera bodies; Accessories therefor
- G03B17/38—Releasing-devices separate from shutter
- G03B17/40—Releasing-devices separate from shutter with delayed or timed action
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Shutters For Cameras (AREA)
- Shutter-Related Mechanisms (AREA)
- Blocking Light For Cameras (AREA)
- Exposure Control For Cameras (AREA)
Description
【発明の詳細な説明】
＜産業上の利用分野＞
本発明はアイピースシヤツターと関連させたカ
メラのレリーズ装置に関する。DETAILED DESCRIPTION OF THE INVENTION <Field of Industrial Application> The present invention relates to a camera release device associated with an eyepiece shutter.
＜従来技術＞
セルフタイマー影撮に際してはレリーズ操作か
ら所定時間後にレリーズ動作がなされ、かつ通常
にカメラを無人状態とした上撮影がなされる。<Prior Art> In self-timer photography, a release operation is performed a predetermined time after the release operation, and photography is normally performed with the camera in an unattended state.
よつてセルフタイマー撮影に際してはアイピー
ス部からの逆入射光が存在し測光系が該逆入射光
に影響され適正なる測光値が得られない欠点があ
つた。 Therefore, during self-timer photography, there is a back-incident light from the eyepiece, and the photometry system is affected by the back-incident light, making it impossible to obtain appropriate photometric values.
この問題を解消する方法としてはアイピースシ
ヤツターを配することが考えられるが、従来はセ
ルフタイマー撮影に際して撮影者がアイピースシ
ヤツターを作動さぜる必要があり、アイピースシ
ヤツターを作動状態に設定することを忘れた場合
には上述の問題が解消し得なかつた。 One possible way to solve this problem is to install an eyepiece shutter, but conventionally, when taking self-timer shots, the photographer had to operate the eyepiece shutter, and the eyepiece shutter had to be set to the operating state. If this was forgotten, the above-mentioned problem could not be resolved.
＜目的＞
本発明は上述の事項に鑑みなされたものでセル
フタイマー撮影に際し、レリーズ操作部材の操作
から所定のセルフタイマー時間後電磁レリーズ回
路（実施例のMg1，CO１，Tr1に相当する。）を
作動させカメラのレリーズ動作を行なうカメラの
レリーズ装置において、カメラのアイピースにフ
アインダーへの逆入射光を遮断するアイピースシ
ヤツター部材を設けると共にアイピースシヤツタ
ー部材が上記遮光位置にある時第１の状態となり
遮光位置にない時第２の状態となるスイツチ手段
（実施例のS13に相当する。）とセルフタイマー撮
影の際に前記スイツチ手段の第２の状態に応答し
て前記レリーズ回路を不作動状態にすると共にス
イツチ手段の第１の状態に応答してレリーズ回路
を作動許容状態にする制御回路（実施例のI10，
I11，Ｇ２０，I12に相当する。）を配し、セルフタ
イマー撮影に際してアイピースシヤツターが遮光
状態にある時のみレリーズ動作がなされる様なし
たものである。<Purpose> The present invention has been made in view of the above-mentioned matters, and includes an electromagnetic release circuit (corresponding to Mg 1 , CO 1 , and Tr 1 in the embodiment) after a predetermined self-timer time has elapsed from the operation of the release operating member during self-timer photography. ) in a camera release device that performs a camera release operation by activating an eyepiece, an eyepiece shutter member is provided on the eyepiece of the camera to block reverse incident light to the viewfinder, and when the eyepiece shutter member is in the light-shielding position, the first switch means (corresponding to S 13 in the embodiment) that enters the second state when the camera is not in the light shielding position, and the release circuit is disabled in response to the second state of the switch means during self-timer photography. A control circuit (I 10 in the embodiment,
Corresponds to I 11 , G20, and I 12 . ), so that the release operation is performed only when the eyepiece shutter is in a light-shielded state during self-timer photography.
＜実施例＞
第１図は本発明に係るレリーズ装置の一実施例
を示す回路図である。<Embodiment> FIG. 1 is a circuit diagram showing an embodiment of a release device according to the present invention.
図において、S6はセルフタイマー設定部材に連
動してセルフタイマーモードの時にオンとなるス
イツチS13はアイピースシヤツターに連動してア
イピースシヤツターが遮光状態にある時オンとな
り、遮光状態にない時オフとなるスイツチであ
る。 In the figure, switch S 6 is linked to the self-timer setting member and is turned on when in self-timer mode. Switch S 13 is linked to the eyepiece shutter and is turned on when the eyepiece shutter is in the light-shielding state, and is turned on when the eyepiece shutter is not in the light-shielding state. This is a switch that turns it off.
I10，I11，I12はインバーター、Ｇ２０，Ｇ７′は
アンドゲートＧ２１はオアゲートを示している。 I 10 , I 11 , I 12 are inverters, G20 and G7' are AND gates, and G21 is an OR gate.
Tr1はコレクターエミツター間に不図示のカメ
ラの起動部材を作動させるためのマグネツトMg1
及びコンデンサーCO１を接続するトランジスタ
ーであり、上記コンデンサーCO１は抵抗R1を介
して端子E′4からの供電にて充電されている。
尚、端子Ｊ２８は供給端子、端子Ｊ２９は通常撮
影時レリーズ操作部材の操作にて直ちにハイレベ
ル信号を入力すると共にセルフタイマー撮影時レ
リーズ操作部材の操作から所定のセルフタイム後
上記ハイレベル信号を入力するための端子であ
る。 Tr 1 is a magnet Mg 1 for operating a camera activation member (not shown) between the collector emitters.
and a transistor connecting the capacitor CO1, and the capacitor CO1 is charged with power supplied from the terminal E'4 via the resistor R1 .
Note that terminal J28 is a supply terminal, and terminal J29 inputs a high level signal immediately upon operation of the release operation member during normal shooting, and inputs the above high level signal after a predetermined self-time from operation of the release operation member during self-timer shooting. This is a terminal for
まず、セルフタイム撮影であり、かつアイピー
スシヤツターを遮光状態にした場合について説明
する。この場合はスイツチS6，S13はオンである
ためアンドゲートＧ２０からハイレベル信号が送
出される。よつて、レリーズ操作部材の操作から
所定時間後端子Ｊ２９にハイレベル信号が入力さ
れるとアンドゲートＧ７′からハイレベル信号が
送出し、トランジスターTr1がオンとなりコンデ
ンサーCO１の電荷がマグネツトMg1へ供給さ
れ、カメラのレリーズ動作がなされる。 First, a case will be described in which self-time photography is performed and the eyepiece shutter is in a light-shielding state. In this case, since switches S 6 and S 13 are on, a high level signal is sent from AND gate G20. Therefore, when a high level signal is input to the terminal J29 after a predetermined time from the operation of the release operating member, a high level signal is sent from the AND gate G7', the transistor Tr1 is turned on, and the electric charge of the capacitor CO1 is transferred to the magnet Mg1. is supplied, and the camera release operation is performed.
次いで、セルフタイマー不使用時の動作につい
て説明する。この場合はスイツチS6がオフである
ため、インバータI12からハイレベル信号が送出
される。よつて、この場合は、アイピースシヤツ
ターの状態にかかわらず、レリーズ操作にて端子
Ｊ２９へハイレベル信号が入力されると、アンド
ゲートＧ７′からハイレベル信号が送出され、上
述の動作にてレリーズ動作がなされる。次いでセ
ルフタイマー撮影に際し、アイピースシヤツター
を遮光状態にしていない場合について説明する。 Next, the operation when the self-timer is not used will be explained. In this case, since switch S6 is off, a high level signal is sent from inverter I12 . Therefore, in this case, regardless of the state of the eyepiece shutter, when a high level signal is input to terminal J29 during the release operation, a high level signal is sent from AND gate G7', and the shutter is released by the above operation. An action is taken. Next, a case will be described in which the eyepiece shutter is not in a light shielding state during self-timer photography.
この場合はスイツチS6がオン、スイツチS13が
オフとなる。よつてアンドゲートＧ２０及びイン
バーターI12はロウレベル信号を送出するため、
たとえレリーズ操作部材が操作され、端子Ｊ２９
へハイレベル信号が入力されてもゲートＧ７′か
らはハイレベル信号が送出されず、レリーズ動作
はなされないこととなる。 In this case, switch S6 is on and switch S13 is off. Therefore, since AND gate G20 and inverter I12 send out a low level signal,
Even if the release operating member is operated, terminal J29
Even if a high level signal is input to gate G7', no high level signal is sent out from gate G7', and no release operation is performed.
＜効果＞
以上の如く本発明にあつては、セルフタイマー
撮影に際してアイピースシヤツターにて遮光状態
としている時のみレリーズ動作がなされる様にし
たものであるため、セルフタイマー撮影時のアイ
ピースから逆入射光の影響を防止し得るものであ
る。<Effects> As described above, in the present invention, since the release operation is performed only when the eyepiece shutter is in a light-shielding state during self-timer shooting, reverse incident light from the eyepiece during self-timer shooting is It can prevent the influence of light.
第１図は本発明に係るレリーズ装置の一実施例
を示す回路図である。
S6，S13……スイツチ、Ｇ２０，Ｇ７′……アン
ドゲート、I10，I11，I12……インバーター。
FIG. 1 is a circuit diagram showing an embodiment of a release device according to the present invention. S 6 , S 13 ... switch, G20, G7' ... AND gate, I 10 , I 11 , I 12 ... inverter.
Claims (1)
材の操作から所定のセルフタイマー時間後電磁レ
リーズ回路を作動させカメラのレリーズ動作を行
なうカメラのレリーズ装置において、 カメラのアイピースにフアインダーへの逆入射
光を遮断するアイピースシヤツター部材を設ける
と共にアイピースシヤツター部材が上記遮光位置
にある時第１の状態となり遮光位置にない時第２
の状態となるスイツチ手段と、セルフタイマー撮
影の際に前記スイツチ手段の第２の状態に応答し
て前記レリーズ回路を不作動状態にすると共にス
イツチ手段の第１の状態に応答してレリーズ回路
を作動許容状態にする制御回路を配したことを特
徴とするカメラのレリーズ装置。[Scope of Claims] 1. In a camera release device that activates an electromagnetic release circuit to perform a camera release operation after a predetermined self-timer time has elapsed from the operation of a release operating member during self-timer photography, a camera eyepiece is provided with a reverse link to a viewfinder. An eyepiece shutter member for blocking incident light is provided, and when the eyepiece shutter member is in the light-blocking position, it is in the first state, and when it is not in the light-blocking position, it is in the second state.
a switch means that is in a state of 1, and a switch means that makes the release circuit inactive in response to a second state of the switch means during self-timer photography, and a release circuit that is activated in response to a first state of the switch means. A camera release device characterized by being equipped with a control circuit for setting the camera to an operation permissible state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56208903A JPS57132128A (en) | 1981-12-23 | 1981-12-23 | Releasing device of camera |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56208903A JPS57132128A (en) | 1981-12-23 | 1981-12-23 | Releasing device of camera |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP49147842A Division JPS5173439A (en) | 1974-10-07 | 1974-12-23 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57132128A JPS57132128A (en) | 1982-08-16 |
| JPS6124699B2 true JPS6124699B2 (en) | 1986-06-12 |
Family
ID=16564028
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56208903A Granted JPS57132128A (en) | 1981-12-23 | 1981-12-23 | Releasing device of camera |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57132128A (en) |
-
1981
- 1981-12-23 JP JP56208903A patent/JPS57132128A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57132128A (en) | 1982-08-16 |
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