JPH0998330A - Focus operation device of camera - Google Patents
Focus operation device of cameraInfo
- Publication number
- JPH0998330A JPH0998330A JP7252264A JP25226495A JPH0998330A JP H0998330 A JPH0998330 A JP H0998330A JP 7252264 A JP7252264 A JP 7252264A JP 25226495 A JP25226495 A JP 25226495A JP H0998330 A JPH0998330 A JP H0998330A
- Authority
- JP
- Japan
- Prior art keywords
- focus
- section
- operating
- camera
- unit
- 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
- 230000007547 defect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Lens Barrels (AREA)
- Automatic Focus Adjustment (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明はカメラのフォーカス
操作装置に係り、特にフィールドカメラやスタジオカメ
ラ等の放送用大型テレビカメラのフォーカス操作装置に
関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a focus operating device for a camera, and more particularly to a focus operating device for a large television camera for broadcasting such as a field camera and a studio camera.
【０００２】[0002]
【従来の技術】従来、この種のテレビカメラのフォーカ
ス操作は、雲台のパン・チルト棒やカメラに固定された
Ｌ字アングル部材等にフォーカス操作部（フォーカスデ
マンド）を外付けして、このフォーカス操作部をカメラ
マンが操作することにより行われている。前記外付けの
フォーカス操作部は、カメラにケーブルを介して接続さ
れており、フォーカス操作部からフォーカス駆動部に駆
動信号を出力している。また、最近では、フォーカス操
作部をテレビカメラのカメラ本体側面に予め取り付けて
操作性を向上させたものもある。2. Description of the Related Art Conventionally, a focus operation of a television camera of this type has been performed by externally attaching a focus operation unit (focus demand) to a pan / tilt rod of a platform or an L-shaped angle member fixed to the camera. This is performed by the camera operator operating the focus operation unit. The external focus operation unit is connected to the camera via a cable and outputs a drive signal from the focus operation unit to the focus drive unit. Further, recently, there is also a focus operation unit which is previously attached to a side surface of a camera body of a television camera to improve operability.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、従来の
フォーカス操作装置では、カメラ本体側面にフォーカス
操作部が取り付けられたテレビカメラを使用する場合で
も、カメラマンによっては習慣的に又は使い勝手から外
付けのフォーカス操作部をカメラに接続して、外付けの
フォーカス操作部で操作しようとする場合がある。However, according to the conventional focus operation device, even when a television camera having a focus operation unit attached to the side surface of the camera body is used, depending on the cameraman, the focus may be habitually or externally attached. There is a case where the operation unit is connected to the camera and an operation is performed with an external focus operation unit.
【０００４】この場合、各々のフォーカス操作部から出
力された２つの駆動信号が干渉してしまうので、フォー
カス駆動部を制御することができず、これによりピント
調整を行うことができないという欠点がある。本発明は
このような事情に鑑みてなされたもので、カメラ本体に
設けられた第１のフォーカス操作部、カメラにケーブル
を介して設けられた第２のフォーカス操作部の両方を不
具合なく使用することができるカメラのフォーカス操作
装置を提供することを目的とする。In this case, the two drive signals output from the respective focus operating sections interfere with each other, so that the focus driving section cannot be controlled, and thus focus adjustment cannot be performed. . The present invention has been made in view of such circumstances, and uses both the first focus operation unit provided on the camera body and the second focus operation unit provided on the camera via a cable without any problem. It is an object of the present invention to provide a focus operation device for a camera capable of performing the operation.
【０００５】[0005]
【課題を解決するための手段】本発明は、前記目的を達
成するために、カメラ本体に設けられた第１のフォーカ
ス操作部と、カメラにケーブルを介して設けられた第２
のフォーカス操作部とを有し、前記第１のフォーカス操
作部又は第２のフォーカス操作部を操作してフォーカス
駆動部を駆動させることによりピント調整を行うカメラ
のフォーカス操作装置に於いて、前記第１のフォーカス
操作部、若しくは第２のフォーカス操作部のうちどちら
か一方のフォーカス操作部をピント調整用に切り換えて
使用させる切換手段を設けたことを特徴とする。In order to achieve the above-mentioned object, the present invention provides a first focus operation section provided on a camera body and a second focus operation section provided on the camera via a cable.
A focus operation unit for a camera that adjusts focus by operating the first focus operation unit or the second focus operation unit to drive the focus drive unit. It is characterized in that a switching means is provided for switching and using either one of the first focus operating section or the second focus operating section for focus adjustment.
【０００６】本発明は切換手段を設け、この切換手段を
第１のフォーカス操作部側に切り換えると第１のフォー
カス操作部がピント調整用に使用され、第２のフォーカ
ス操作部側に切り換えると第２のフォーカス操作部がピ
ント調整用に使用されるようにしたので、第１、第２の
フォーカス操作部を不具合なく使用することができる。According to the present invention, switching means is provided, and when the switching means is switched to the first focus operating section side, the first focus operating section is used for focus adjustment, and when switched to the second focus operating section side, the first focus operating section is used. Since the second focus operating unit is used for focus adjustment, the first and second focus operating units can be used without any trouble.
【０００７】また、本発明では前記切換手段をリレー回
路で構成し、このリレー回路は、第１のフォーカス操作
部から操作信号が出力されると、第１のフォーカス操作
部とフォーカス駆動部とを導通させて第１のフォーカス
操作部をピント調整用に切り換える。また、前記リレー
回路は、第２のフォーカス操作部から操作信号が出力さ
れると、第２のフォーカス操作部とフォーカス駆動部と
を導通させて第２のフォーカス操作部をピント調整用に
切り換える。これにより、本発明では第１、第２のフォ
ーカス操作部を不具合なく使用することができる。Further, according to the present invention, the switching means is composed of a relay circuit, and when the operation signal is output from the first focus operating section, the relay circuit connects the first focus operating section and the focus driving section. The first focus operation unit is switched to the focus adjustment mode for electrical connection. Further, when the operation signal is output from the second focus operation unit, the relay circuit connects the second focus operation unit and the focus drive unit to each other and switches the second focus operation unit for focus adjustment. Thereby, in the present invention, the first and second focus operating portions can be used without any trouble.
【０００８】更に、本発明では前記切換手段を手動のス
イッチで構成している。このスイッチは、第１のフォー
カス操作部に設けられた第１の手動スイッチ、及び第２
のフォーカス操作部に設けられた第２の手動スイッチで
ある。そして、第１の手動スイッチは、カメラマンによ
ってＯＮ操作されると第１のフォーカス操作部とフォー
カス駆動部とを導通させて第１のフォーカス操作部をピ
ント調整用に切り換える。また、第２の手動スイッチ
は、ＯＮ操作されると第２のフォーカス操作部とフォー
カス駆動部とを導通させて第２のフォーカス操作部をピ
ント調整用に切り換える。これにより、本発明では第
１、第２のフォーカス操作部を不具合なく使用すること
ができる。Further, in the present invention, the switching means is composed of a manual switch. This switch includes a first manual switch provided on the first focus operation unit and a second manual switch.
2 is a second manual switch provided in the focus operation unit of the. When the first manual switch is turned on by the cameraman, the first focus operating section and the focus driving section are electrically connected to each other to switch the first focus operating section for focus adjustment. When the second manual switch is turned on, the second focus operating section and the focus driving section are electrically connected to each other to switch the second focus operating section for focus adjustment. Thereby, in the present invention, the first and second focus operating portions can be used without any trouble.
【０００９】[0009]
【発明の実施の形態】以下添付図面に従って本発明に係
るカメラのフォーカス操作装置の好ましい実施の形態を
詳述する。図１は、本発明に係るカメラのフォーカス操
作装置が適用されたテレビカメラの実施例を示す説明図
である。同図に示すテレビカメラ１０はカメラ部１２と
レンズ部１４とから構成され、三脚１６上に雲台１８を
介して固定されている。符号２０はカメラ部１２のファ
インダである。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A preferred embodiment of a focus operating device for a camera according to the present invention will be described in detail below with reference to the accompanying drawings. FIG. 1 is an explanatory diagram showing an embodiment of a television camera to which a camera focus operation device according to the present invention is applied. The television camera 10 shown in the figure comprises a camera section 12 and a lens section 14, and is fixed on a tripod 16 via a platform 18. Reference numeral 20 is a finder of the camera unit 12.
【００１０】前記テレビカメラ１０には、第１のフォー
カス操作部２２がカメラ部１２の本体ケース側面に取り
付けられ、第２のフォーカス操作部２４がケーブル２６
を介してレンズ部１４に接続されると共にカメラ部１２
に固定されたＬ字アングル部材２８に取り付けられてい
る。前記第１のフォーカス操作部２２、第２のフォーカ
ス操作部２４は図２に示すように、可変抵抗器を主な構
成としており、可変される抵抗値によってフォーカス駆
動部３０を制御して図示しないフォーカスレンズの移動
量を制御しピント調整を行う。また、第２のフォーカス
操作部２４には、切換信号発生器３２が内蔵されてい
る。この切換信号発生器３２については後述する。In the television camera 10, a first focus operating section 22 is attached to a side surface of a main body case of the camera section 12, and a second focus operating section 24 is connected to a cable 26.
Is connected to the lens unit 14 via the camera unit 12
It is attached to an L-shaped angle member 28 fixed to. As shown in FIG. 2, the first focus operating unit 22 and the second focus operating unit 24 mainly include a variable resistor, and the focus driving unit 30 is controlled by a variable resistance value, which is not shown. The focus lens is adjusted by controlling the amount of movement of the focus lens. Further, the second focus operating unit 24 has a switching signal generator 32 built therein. The switching signal generator 32 will be described later.
【００１１】第１のフォーカス操作部２２、第２のフォ
ーカス操作部２４からの駆動信号（抵抗値を示す電圧信
号）は、リレー回路３４を介して前記フォーカス駆動部
３０に出力されている。リレー回路３４は図中実線で示
すように、第１のフォーカス操作部２２の接点３６と接
続されており、この状態では第１のフォーカス操作部２
２とフォーカス駆動部３０とが導通されている。また、
リレー回路３４は、前記切換信号発生器３２から切換信
号（操作信号）が出力されると、前記接点３６から離れ
て第２のフォーカス操作部２４の接点３８と接続され
る。これにより、導通状態が第１のフォーカス操作部２
２側から第２のフォーカス操作部２４側に切り換えられ
る。Drive signals (voltage signals indicating resistance values) from the first focus operation section 22 and the second focus operation section 24 are output to the focus drive section 30 via a relay circuit 34. As shown by the solid line in the figure, the relay circuit 34 is connected to the contact 36 of the first focus operating section 22. In this state, the first focus operating section 2 is connected.
2 and the focus drive unit 30 are electrically connected. Also,
When the switching signal (operation signal) is output from the switching signal generator 32, the relay circuit 34 separates from the contact 36 and is connected to the contact 38 of the second focus operation unit 24. Thereby, the conduction state is the first focus operation unit 2
The side 2 is switched to the side of the second focus operation unit 24.
【００１２】前記切換信号発生器３２は、カメラマンに
よってＯＮ／ＯＦＦ操作されるスイッチ４０を有し、Ｏ
Ｎ状態では前記切換信号をリレー回路３４に出力し続け
る。これにより、リレー回路３４が第２のフォーカス操
作部２４とフォーカス駆動部３０とを導通させた状態を
保持するので、第２のフォーカス操作部２４のみがピン
ト調整用として使用される。また、前記スイッチ４０が
ＯＦＦされると、リレー回路３４に切換信号が出力され
なくなるので、第１のフォーカス操作部２２とフォーカ
ス駆動部３０とが導通し、第１のフォーカス操作部２２
のみがピント調整用として使用される。The switching signal generator 32 has a switch 40 which is turned on / off by a cameraman.
In the N state, the switching signal continues to be output to the relay circuit 34. As a result, the relay circuit 34 maintains the state in which the second focus operating unit 24 and the focus driving unit 30 are electrically connected, and therefore only the second focus operating unit 24 is used for focus adjustment. When the switch 40 is turned off, the switching signal is not output to the relay circuit 34, so that the first focus operating section 22 and the focus driving section 30 are electrically connected to each other, and the first focus operating section 22 is turned on.
Only the one used for focus adjustment.
【００１３】次に、前記の如く構成されたカメラのフォ
ーカス操作装置の第１実施例の作用について説明する。
先ず、カメラマンが第２のフォーカス操作部２４を使用
してピント調整を行いたい場合には、カメラマンが切換
信号発生器３２のスイッチ４０を予めＯＮにする。これ
により、切換信号発生器３２からリレー回路３４に切換
信号が出力されて、第２のフォーカス操作部２４とフォ
ーカス駆動部３０とが導通するので、第２のフォーカス
操作部２４でピント調整を行うことができる。Next, the operation of the first embodiment of the camera focus operating device constructed as described above will be explained.
First, when the cameraman wants to perform focus adjustment using the second focus operation unit 24, the cameraman turns on the switch 40 of the switching signal generator 32 in advance. As a result, a switching signal is output from the switching signal generator 32 to the relay circuit 34, and the second focus operating section 24 and the focus driving section 30 are brought into conduction, so that focus adjustment is performed by the second focus operating section 24. be able to.
【００１４】また、カメラマンが第１のフォーカス操作
部２２を使用してピント調整を行いたい場合には、カメ
ラマンが切換信号発生器３２のスイッチ４０をＯＦＦに
する。これにより、切換信号発生器３２からリレー回路
３４に切換信号が出力されなくなり、第１のフォーカス
操作部２２とフォーカス駆動部３０とが導通するので、
第１のフォーカス操作部２２でピント調整を行うことが
できる。When the cameraman wants to adjust the focus using the first focus operating section 22, the cameraman turns off the switch 40 of the switching signal generator 32. As a result, the switching signal is not output from the switching signal generator 32 to the relay circuit 34, and the first focus operating unit 22 and the focus driving unit 30 are electrically connected.
Focus adjustment can be performed with the first focus operation unit 22.
【００１５】従って、第１実施例では、リレー回路３４
の切り換えによって各々のフォーカス操作部２２、２４
同士の信号の干渉を防止したので、第１、第２のフォー
カス操作部２２、２４を不具合なく使用することができ
る。本第１実施例では、第２のフォーカス操作部２４側
に切換信号発生器３２を設けて、第２のフォーカス操作
部２４を使用する際に接点３６から接点３８にリレー回
路３４を切り換えるようにしたが、切換信号発生器３２
は第１のフォーカス操作部２２側に設けても良く、両方
のフォーカス操作部２２、２４に設けても良い。Therefore, in the first embodiment, the relay circuit 34
By switching the focus operation units 22, 24
Since the interference of signals between them is prevented, the first and second focus operation units 22 and 24 can be used without any trouble. In the first embodiment, the switching signal generator 32 is provided on the side of the second focus operating unit 24 so that the relay circuit 34 is switched from the contact 36 to the contact 38 when the second focus operating unit 24 is used. However, the switching signal generator 32
May be provided on the side of the first focus operation unit 22 or on both focus operation units 22 and 24.
【００１６】また、本第１実施例では、切換信号発生器
３２からの切換信号のＯＮ／ＯＦＦによりリレー回路３
４を切り換えるようにしたが、これに限られるものでは
なく、第２のフォーカス操作部２４から出力される電圧
信号の信号線の一本（図２中二点鎖線で示す）４２を、
リレー回路３４とのコネクタ部分で分岐して、この一方
の信号線４２から出力される電圧信号でリレー回路３４
を切り換えるようにしても良い。また、リレー回路３４
の代わりに、カメラマンが手動で切り換えることができ
るスイッチをテレビカメラ１０に設け、このスイッチで
第１のフォーカス操作部２２側、若しくは第２のフォー
カス操作部２４側に切り換えるようにしても良い。In the first embodiment, the relay circuit 3 is turned on / off by the switching signal from the switching signal generator 32.
4 is switched, but the invention is not limited to this, and one signal line (shown by a chain double-dashed line in FIG. 2) 42 of the voltage signal output from the second focus operation unit 24 is
A voltage signal output from one of the signal lines 42 is branched at the connector portion with the relay circuit 34 and is relayed by the relay circuit 34.
May be switched. In addition, the relay circuit 34
Alternatively, the television camera 10 may be provided with a switch that can be manually switched by the cameraman, and the switch may be switched to the first focus operation unit 22 side or the second focus operation unit 24 side.
【００１７】図３は、本発明のカメラのフォーカス操作
装置に係る第２実施例の説明図であり、図１、２に示し
た第１実施例と同一若しくは類似の部材については同一
の符号を付してその説明は省略する。図３に示すフォー
カス操作装置は、第１実施例で示したリレー回路３４の
代わりにスイッチ４４、４６を設けたものである。FIG. 3 is an explanatory view of a second embodiment of the focus operating device for a camera according to the present invention. The same or similar members as those of the first embodiment shown in FIGS. The description is omitted. The focus operating device shown in FIG. 3 is provided with switches 44 and 46 instead of the relay circuit 34 shown in the first embodiment.
【００１８】前記スイッチ４４、４６はカメラマンが手
動でＯＮ／ＯＦＦ操作するもので、スイッチ４４は図１
に示した第１のフォーカス操作部２２に設けられ、スイ
ッチ４６は第２のフォーカス操作部２４に設けられてい
る。前記スイッチ４４は、ＯＮされると第１のフォーカ
ス操作部２２とフォーカス駆動部３０とを導通させて第
１のフォーカス操作部２２をピント調整用に切り換え
る。また、前記スイッチ４６は、ＯＮされると第２のフ
ォーカス操作部２４とフォーカス駆動部３０とを導通さ
せて第２のフォーカス操作部２４をピント調整用に切り
換える。The switches 44 and 46 are manually turned on and off by a cameraman, and the switch 44 is shown in FIG.
The switch 46 is provided in the second focus operation unit 24 shown in FIG. When the switch 44 is turned on, the first focus operating unit 22 and the focus driving unit 30 are electrically connected to each other to switch the first focus operating unit 22 for focus adjustment. When the switch 46 is turned on, the second focus operating unit 24 and the focus driving unit 30 are electrically connected to each other to switch the second focus operating unit 24 for focus adjustment.
【００１９】従って、カメラマンが第１のフォーカス操
作部２２でピント調整を行いたい場合には、スイッチ４
４をＯＮにしスイッチ４６をＯＦＦにする。そして、第
２のフォーカス操作部２４でピント調整を行いたい場合
には、スイッチ４４をＯＦＦにしスイッチ４６をＯＮに
する。これにより、第２実施例でも、第１、第２のフォ
ーカス操作部２２、２４を不具合なく使用することがで
きる。Therefore, when the camera operator wants to adjust the focus with the first focus operating section 22, the switch 4 is used.
4 is turned on and the switch 46 is turned off. Then, when it is desired to adjust the focus with the second focus operation unit 24, the switch 44 is turned off and the switch 46 is turned on. Accordingly, also in the second embodiment, the first and second focus operation units 22 and 24 can be used without any trouble.
【００２０】図４は、本発明のカメラのフォーカス操作
装置に係る第３実施例の説明図であり、図１〜３に示し
た第１、２実施例と同一若しくは類似の部材については
同一の符号を付してその説明は省略する。同図に示すフ
ォーカス操作装置は、第１のフォーカス操作部２２から
出力される電圧信号を抵抗Ｒ１を介してフォーカス駆動
部３０に出力し、第２のフォーカス操作部２４から出力
される電圧信号を抵抗Ｒ２を介してフォーカス駆動部３
０に出力している。前記抵抗Ｒ１、Ｒ２はＲ１＞Ｒ２の
関係にあり、即ち、第２のフォーカス操作部２４をカメ
ラ側に接続すると、第２のフォーカス操作部２４からの
電圧信号の電位が、第１のフォーカス操作部２２からの
電圧信号の電位よりも大きくなるので、第２のフォーカ
ス操作部２４をピント調整用として優先的に使用するこ
とができる。この場合、Ｒ１の抵抗値はＲ２の抵抗値の
１００倍程度が好ましい。また、第１のフォーカス操作
部２２を使用する場合には、第２のフォーカス操作部２
４をカメラ側から取り外せば良い。FIG. 4 is an explanatory view of a third embodiment of the focus operating device for a camera according to the present invention, in which the same or similar members as those in the first and second embodiments shown in FIGS. The reference numerals are given and the description thereof is omitted. The focus operating device shown in the figure outputs the voltage signal output from the first focus operating unit 22 to the focus drive unit 30 via the resistor R1, and outputs the voltage signal output from the second focus operating unit 24. Focus drive unit 3 via resistor R2
0 is output. The resistors R1 and R2 have a relationship of R1> R2, that is, when the second focus operating unit 24 is connected to the camera side, the potential of the voltage signal from the second focus operating unit 24 changes to the first focus operating unit. Since the potential of the voltage signal from the unit 22 is higher than that of the voltage signal, the second focus operation unit 24 can be preferentially used for focus adjustment. In this case, the resistance value of R1 is preferably about 100 times the resistance value of R2. When using the first focus operating unit 22, the second focus operating unit 2 is used.
4 should be removed from the camera side.
【００２１】本発明の実施の形態では切換手段をリレー
回路３４、手動スイッチ４４、４６、及び抵抗Ｒ１、Ｒ
２等で構成したが、これに限られるものではなく、カメ
ラ部１２とレンズ部１４とのインターフェースに切換装
置を設けても良い。また、本発明の実施の形態では、フ
ォーカス操作装置の切換手段について説明したが、ズー
ム操作装置の操作部がフォーカス操作部２２、２４と同
様に２台設けられている場合には、ズーム操作装置につ
いても本実施の形態の切換手段を適用することができ
る。In the embodiment of the present invention, the switching means is the relay circuit 34, the manual switches 44 and 46, and the resistors R1 and R.
However, the invention is not limited to this, and a switching device may be provided at the interface between the camera unit 12 and the lens unit 14. Further, in the embodiment of the present invention, the switching means of the focus operating device has been described. However, when two operating parts of the zoom operating device are provided similarly to the focus operating parts 22 and 24, the zoom operating device is provided. The switching means of this embodiment can also be applied to the above.
【００２２】[0022]
【発明の効果】以上説明したように本発明に係るカメラ
のフォーカス操作装置によれば、第１のフォーカス操作
部、若しくは第２のフォーカス操作部のうちどちらか一
方のフォーカス操作部をピント調整用に切り換えて使用
させる切換手段を設けたので、第１、第２のフォーカス
操作部を不具合なく使用することができる。As described above, according to the focus operating device for a camera of the present invention, one of the first focus operating unit and the second focus operating unit is used for focus adjustment. Since the switching means for switching to and using is provided, the first and second focus operating portions can be used without trouble.
【図１】本発明に係るカメラのフォーカス操作装置が適
用されたテレビカメラの外観図FIG. 1 is an external view of a television camera to which a camera focus operation device according to the present invention is applied.
【図２】本発明に係るカメラのフォーカス操作装置の第
１実施例を示す説明図FIG. 2 is an explanatory diagram showing a first embodiment of a focus operation device for a camera according to the present invention.
【図３】本発明に係るカメラのフォーカス操作装置の第
２実施例を示す説明図FIG. 3 is an explanatory diagram showing a second embodiment of the focus operation device for a camera according to the present invention.
【図４】本発明に係るカメラのフォーカス操作装置の第
３実施例を示す説明図FIG. 4 is an explanatory diagram showing a third embodiment of the focus operating device for a camera according to the present invention.
１０…テレビカメラ ２２…第１のフォーカス操作部 ２４…第２のフォーカス操作部 ３０…フォーカス駆動部 ３２…切換信号発生器 ３４…リレー回路 ４４、４６…スイッチ 10 ... Television camera 22 ... 1st focus operating part 24 ... 2nd focus operating part 30 ... Focus drive part 32 ... Switching signal generator 34 ... Relay circuit 44, 46 ... Switch
Claims (3)
操作部と、カメラにケーブルを介して設けられた第２の
フォーカス操作部とを有し、前記第１のフォーカス操作
部又は第２のフォーカス操作部を操作してフォーカス駆
動部を駆動させることによりピント調整を行うカメラの
フォーカス操作装置に於いて、 前記第１のフォーカス操作部、若しくは第２のフォーカ
ス操作部のうちどちらか一方のフォーカス操作部をピン
ト調整用に切り換えて使用させる切換手段を設けたこと
を特徴とするカメラのフォーカス操作装置。1. A first focus operating section provided on a camera body, and a second focus operating section provided on the camera via a cable, wherein the first focus operating section or the second focus operating section is provided. A focus operating device for a camera, which adjusts a focus by operating a focus operating unit to drive a focus driving unit, comprising the focus of either the first focus operating unit or the second focus operating unit. A focus operating device for a camera, comprising switching means for switching and using an operating portion for focus adjustment.
ー回路は、前記第１のフォーカス操作部から操作信号が
出力されると該第１のフォーカス操作部と前記フォーカ
ス駆動部とを導通させて第１のフォーカス操作部をピン
ト調整用に切り換えると共に、前記第２のフォーカス操
作部から操作信号が出力されると該第２のフォーカス操
作部と前記フォーカス駆動部とを導通させて第２のフォ
ーカス操作部をピント調整用に切り換えることを特徴と
する請求項１記載のカメラのフォーカス操作装置。2. The switching means is a relay circuit, and the relay circuit electrically connects the first focus operation section and the focus drive section when an operation signal is output from the first focus operation section. The first focus operating section is switched to focus adjustment, and when the second focus operating section outputs an operation signal, the second focus operating section and the focus drive section are electrically connected to each other to make the second focus operating section conductive. The focus operating device for a camera according to claim 1, wherein the focus operating unit is switched for focus adjustment.
部に設けられた第１の手動スイッチ、及び前記第２のフ
ォーカス操作部に設けられた第２の手動スイッチであ
り、前記第１の手動スイッチはＯＮ操作されると第１の
フォーカス操作部と前記フォーカス駆動部とを導通させ
て第１のフォーカス操作部をピント調整用に切り換え、
前記第２の手動スイッチはＯＮ操作されると第２のフォ
ーカス操作部と前記フォーカス駆動部とを導通させて第
２のフォーカス操作部をピント調整用に切り換えること
を特徴とする請求項１記載のカメラのフォーカス操作装
置。3. The switching means includes a first manual switch provided on the first focus operating section and a second manual switch provided on the second focus operating section, and the first manual switch is provided. When the manual switch is turned on, the first focus operating section and the focus driving section are electrically connected to switch the first focus operating section for focus adjustment,
2. The second manual switch, when turned on, connects the second focus operating unit and the focus driving unit to each other to switch the second focus operating unit for focus adjustment. Camera focus operation device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25226495A JP3557574B2 (en) | 1995-09-29 | 1995-09-29 | Camera focus operation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25226495A JP3557574B2 (en) | 1995-09-29 | 1995-09-29 | Camera focus operation device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0998330A true JPH0998330A (en) | 1997-04-08 |
| JP3557574B2 JP3557574B2 (en) | 2004-08-25 |
Family
ID=17234823
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP25226495A Expired - Fee Related JP3557574B2 (en) | 1995-09-29 | 1995-09-29 | Camera focus operation device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3557574B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000329986A (en) * | 1999-05-18 | 2000-11-30 | Canon Inc | Auxiliary device, main unit, device system, camera auxiliary device, camera and camera system |
| JP2005107422A (en) * | 2003-10-02 | 2005-04-21 | Canon Inc | Camera system |
| JP2016103019A (en) * | 2014-11-18 | 2016-06-02 | 株式会社日本ビデオシステム | Motion controller device |
-
1995
- 1995-09-29 JP JP25226495A patent/JP3557574B2/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000329986A (en) * | 1999-05-18 | 2000-11-30 | Canon Inc | Auxiliary device, main unit, device system, camera auxiliary device, camera and camera system |
| JP2005107422A (en) * | 2003-10-02 | 2005-04-21 | Canon Inc | Camera system |
| JP2016103019A (en) * | 2014-11-18 | 2016-06-02 | 株式会社日本ビデオシステム | Motion controller device |
| US9906730B2 (en) | 2014-11-18 | 2018-02-27 | Nihon Video System Co., Ltd. | Motion controller device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3557574B2 (en) | 2004-08-25 |
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