JPH09247514A - Remote controller - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a remote controller by which lots of kinds of operations by a cameraman are conducted easily from a remote location by providing the remote controller between a camera section and a lens section and automatic aperture is attained as required in manual operation and the automatic aperture is fine-adjusted. SOLUTION: The remote controller (RCD) main body 1 is connected to a control circuit between a camera 3 and a lens 4 and remote control is conducted by using a mode selection switch 22 and a control switch 23 of an RCD operation section 2. An iris control signal drives a motor 45 via an adder circuit 14 - a drive circuit 44, a variable resistor 21 is connected to other terminal of the adder circuit 14 to fine-adjust the iris control signal. An iris forced automatic signal drives a forced automatic relay 43 via a diode 13 and a relay drive circuit 41 to set forcible the automatic mode even when a manual changeover switch 42 is thrown to the manual position. Thus, lots of kinds of operations by a cameraman are controlled easily remotely.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a remote control device for a television camera lens.

[0002]

2. Description of the Related Art Generally, there are two methods of controlling an iris of a broadcasting television camera system: an auto iris and a manual iris. The former auto iris is a method of setting an aperture value in an aperture control circuit in a lens by a signal obtained by converting a video signal into an aperture control signal on the camera side so as to obtain an appropriate image. The latter manual iris is a method of manually setting the aperture value regardless of the control signal obtained by converting the video signal of the camera into the aperture control signal.

Even when shooting with an auto iris, if an attempt is made to obtain an aperture value intended by the photographer, a CCU (Came
Fine adjustment of the aperture is required by a device such as a ra Control Unit). In addition, this device is large in size, and when used, it may not be usable as a stand-alone device. Furthermore, when shooting with auto iris, if an unwanted subject such as an unintentional person crosses between the camera and the main subject you are trying to shoot, the aperture detection circuit will respond and operate temporarily The proper aperture value will shift, resulting in a very uncomfortable image.

When such a photographing state is expected,
It is common to shoot with the manual iris shown previously. Also, in this case, the auto iris state is set only for a moment by turning on the forced auto switch that is the accessory function of the lens. However, as a condition in this case, it is necessary to use the camera system while carrying the shoulder, grasp the grip of the lens portion, and operate the compulsory auto switch arranged above the grip with a fingertip.

The start / stop switch of the VTR and the switch for controlling the sending back of the video signal (hereinafter referred to as the RET switch) are usually operated by a switch attached to the remote connector of the lens and attached to the zoom demand. The pin assignment of the remote connector of the lens does not have enough empty pins, and the pin assignment cannot be changed to ensure compatibility with conventional products.

[0006]

In the above-mentioned structure, when the camera is fixed to a tripod or a crane and the image is taken, the switch and the cameraman are located at a distance from each other, and it is impossible for the cameraman to operate, or This is a difficult state, and it is inconvenient because the auto iris of the camera cannot be used by setting the auto iris state only for a moment. Further, when the auto iris of the camera cannot obtain the aperture value intended by the photographer, the correction means is expensive and a large CCU is required, which is inconvenient for photographing maneuverability. And VTR start / stop switch and RE
When the T switch is also remote, it is difficult to operate many kinds of operation members without fail, which is difficult.

The present invention has been made in order to solve the above-mentioned problems even in such a case. By combining the above-mentioned functions into one, it is possible to perform remote control between a camera and a lens connecting cable that can be simultaneously executed. The purpose is to provide a remote control device that can be improved by arranging a control device and the shooting function is greatly improved.

[0008]

In order to achieve the above object, in the invention (first invention) according to claim 1, a remote control device for performing remote operation is provided between a camera section and a lens section. Therefore, the remote control device is provided with a switch means for forcibly driving the diaphragm and an adjusting means for finely adjusting the diaphragm for remote operation.

According to a second aspect of the present invention, in the first aspect, the switch means for controlling the display of the image on the display means for displaying the image and the control of sending the image back to the display means are further controlled. And a switch means.

[0010]

FIG. 1 is a block diagram showing an embodiment of the present invention.
This will be described with reference to FIG. As shown in the figure, the remote control device body 1 of the present invention has a structure in which a connector is connected between the control circuits of the camera 3 and the lens 4. The remote control operation unit 2 is connected to the main body 1.

Although the conventional connection is not shown, the lens 4 and the camera 3 are connected using a connector to receive a control signal. The control signal of the aperture is converted from a video signal into a DC signal in the camera 3 and is input to the adding circuit 14 of the main body 1 of the remote control device, and its output is amplified by the amplifier 15.
And is connected to the lens section. One of the adding circuits 14 is input from the variable resistor 21 of the remote control operation unit 2. The addition ratio of the two is, for example, fixed resistors 11 and 12
Therefore, it is set to about 10: 1 and the operation from the operation unit becomes about 10% of the entire operation range, and the fine adjustment of the aperture value becomes possible.

The forced auto signal is connected from the camera 3 to the relay drive circuit 41 of the lens 4 through the diode 13 of the control body 1 so that the forced auto relay 43 is turned on even when the auto / manual switching SW 42 is in the manual state. Then, the drive circuit 44 and the motor 45 are connected to each other so that they can be forcibly set to the automatic state. The signal from the control operation unit 2 is superposed on the signal from the camera 3. In this case, the diode 13 in the control body 1
Plays a role of preventing a signal from the operation unit from flowing into the camera.

The VTR start / stop signal, RET signal and forced auto signal branched in the main body 1 of the remote control device are connected to the mode selection switch 22 of the control operation section 2 via a cable, and the operation switch 23 is connected to the switch. It is connected. The operation cameraman sets the required mode by the mode selection switch 22 and can selectively perform three types of operations.

In this embodiment, an example in which the connection is made by using a cable, that is, a cable has been described, but the same effect can be obtained by using a wireless device or an optical communication device. As described above, in the present embodiment, the aperture control signal of the television camera and the correction signal of the variable resistor for aperture correction are added to the aperture correction adder circuit to obtain the intended aperture value. . Further, the switch mode as described above is selected by the switch that is selectively operated, and the operation in the selected mode can be performed by one operation switch.

[0015]

As described above, according to the present invention, the aperture value can be corrected and three kinds of operations can be selectively performed when the photograph is fixed to a tripod or a crane, and the operation can be effectively performed and the cost is low. Since it becomes possible to place a small remote control device at the camera operator's hand, the effect of significantly improving the photographing function can be obtained. Further, it is possible to obtain an effect that the operation is easy without having to use many kinds of remote control devices. Further, since the control device is additionally mounted between the camera and the lens, there is an effect that the control device does not need to be modified and the cost can be reduced.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of the present invention.

[Explanation of symbols]

 1 Remote Control Device Main Body 2 Remote Control Device Operation Section 3 Camera 4 Lens 11, 12 Fixed Resistor 13 Diode 14 Adder Circuit 15 Amplifier 21 Variable Resistor 22 Mode Selection Switch 23 Operation Switch 41 Relay Drive Circuit 42 Auto / Manual Change Switch 43 Forced Auto Relay 44 Drive circuit 45 Motor 5

Claims (2)

[Claims] 1. A remote control device for remote operation, which is provided between a camera part and a lens part, and which has switch means for forcibly driving the aperture of the remote control device, and adjustment for finely adjusting the aperture. And a means for performing remote operation. 2. The remote control device according to claim 1, further comprising a switch means for controlling display of an image on a display means for displaying the image, and a switch for controlling sending back of the image to the display means. And a remote control device.