JPH1093853A - Controller for television camera - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide the controller of a television camera which can arbitrarily change the content of a control switch member such as a return switch or an intercom switch with a switch change-over mechanism. SOLUTION: At least one of switch members 42, 44, 46 and 50 functioning as a control switch is provided for the lens controller 28 of a control-side. More than two systems of electric circuits which can execute a prescribed operation by an electric signal outputted in accordance with the operation of the switch parts 42, 44, 46 and 50 are prepared for the television camera-side or the television lens device-side of a side to be controlled. The switch change- over mechanism which can arbitrarily change a connection relation between the switch members 42, 44, 46 and 50 and the electric circuit in accordance with the operation of the rotary switches 56, 57 and 58 is provided. The setting and the change of the content of the switch members 42, 44, 46 and 50 can be facilitated with such constitution.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a control device for a television camera, and more particularly to a control device for a broadcast television camera having a control switch such as a return switch and an intercom switch.

[0002]

2. Description of the Related Art A control device for a large lens used in a studio camera or a field camera is provided with a return switch and an intercom switch. The return switch is a switch for switching an image to be displayed on the viewfinder when checking a screen on air or a screen shot by another camera, and a plurality of switches are provided for each system. In addition, there are two types of intercom switches, for example, a microphone switch for engineer communication and a microphone switch for producer communication, which are prepared in accordance with the party to be called.

[0003]

However, control switches such as a return switch and an intercom switch have different requirements depending on the user, and may be necessary or unnecessary. There is a problem that contents have to be changed. In such a case, conventionally, it has to be changed from the connection of the line forming the transmission path of the electric signal, and there is a drawback that it is complicated.

The present invention has been made in view of such circumstances, and has as its object to provide a television camera control device capable of arbitrarily changing the connection relationship between a plurality of lines and a control switch member. .

[0005]

According to the present invention, at least one switch member functioning as a control switch for operating the operation of a television camera, such as a return switch or an intercom switch, is provided. Or at least two electric circuits provided on the side of the television lens device connected to the television camera and capable of performing a predetermined operation by being guided by an electric signal output in response to the operation of the switch member,
Switching means for switching a connection relationship between the switch member and the electric circuit in accordance with an operation of a selection means.

According to the present invention, at least one switch member functioning as a control switch is provided on the control side, and output is made to the TV camera side or the TV lens device side on the controlled side according to the operation of the switch member. Since two or more electric circuits capable of performing a predetermined operation by an electric signal are prepared, and switching means for arbitrarily changing a connection relationship between the switch member and the electric circuit according to an operation of a selection means is provided, a switch is provided. It is easy to change the connection relationship between the member and the electric circuit, and it is easy to set and change the contents of the switch member.

[Detailed Description of the Invention]

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of a control device for a television camera according to the present invention will be described below in detail with reference to the accompanying drawings. FIG. 1 shows an example in which a television lens control device according to the present invention is applied to a lens controller of a broadcast television camera. The television camera 10 shown in FIG. 1 includes a lens unit 12 and a camera unit 14, and is fixed to a camera platform 18 fixed on a tripod 16 via a lens support 20.

A pan / tilt bar 22 extends from the pan head 18, and a lens controller 28 for operating a zoom speed is provided near a grip 24 of the pan / tilt bar 22.
Is attached. The lens controller 28 is connected to the camera unit 14 or the lens unit 12 via a cable 30.
Focus adjustment is performed by operating the focus knob (not shown) with the right hand while looking at the captured image reflected in
The zoom adjustment can be performed by operating the zoom ring 34 of the lens controller 28 with the left hand.

FIG. 2 is an enlarged side view of the lens controller 28. Below the grip 24 of the lens controller 28, three return switch members 42, 44, 4
The return switch members 42, 44, 46 are turned on / off while operating the pan / tilt bar 22.
It can be turned off. The reason why a plurality of return switch members are provided (three in the present embodiment) is that the return switch member is provided in addition to the case where the screen is switched to the on-air screen.
This is because a plurality of return electric circuits are formed on the television camera side so that a screen shot by another cameraman can be confirmed.

An upper surface of the lens controller 28 is partially formed with an inclined surface 48, and an intercom switch member 50 is provided on the inclined surface 48. The intercom switch member 50 can operate the microphone for engineer communication and the microphone for producer communication with a single member. For example, the center position is a common off position. The microphone for the engineer is turned on when the microphone is turned down, and the microphone for the producer is turned on when the microphone is turned down to the opposite side. Thus, two intercoms are provided in order to be able to talk individually with a plurality of parties.

A rotary dial member 54 is incorporated below the lens controller 28. By operating the dial member 54, the maximum zoom speed can be set. Also,
Rotary switches 56, 57, 58 are provided on the side surface of the lens unit 12 of the television camera 10 shown in FIG. 1. By operating these rotary switches 56, 57, 58, the return switch member 42, 4
4, 46 and the contents of the switches of the intercom switch member 50 can be changed.

FIG. 3 is a diagram showing an example of the connection relationship between the switch member and the electric circuit. Reference numerals 62, 64, 66 in the figure
Are equivalent to the return switch members 42, 44, 46 or the intercom switch member 50 described in FIG. 2, and RET1, 2, 3 shown on the left side in FIG. 3 are respectively formed on the television camera side. Connection point of the return electric circuit (not shown). In addition, income ENG. Is a connection point of an electric circuit of an engineer communication microphone formed on the television camera side, and the intercom PD.
Means a connection point of an electric circuit of the producer communication microphone.

The switch members 62, 64, 66 and the respective electric circuits are connected to the contact pieces 72, 74,
The connection relation can be arbitrarily switched by changing the contact with which the contact 76 contacts. The switch switching mechanism 70 corresponds to the rotary switches 56, 57, 58 shown in FIG. 1, in which the switch member 62 is RET1, the switch member 64 is RET2, and the switch member 66 is the intercom PD. Is shown.

Next, the operation of the control device for a television camera configured as described above will be described. When the connection relationship shown in FIG. 3 is set, the return switch members 42 and 44 of the lens controller 28 shown in FIG.
Are associated with the return electric circuits RET1 and RET2, respectively.
Only operations for producer communication are income PD. Associated with

That is, regarding the operation for the engineer communication of the return switch member 46 and the intercom switch member 50, since the connection with the electric circuit is not performed, the operation of these switch members is ignored. This makes it possible to invalidate the operation of an unnecessary switch member according to the usage form of the user. Also, by operating the rotary switches 56, 57, 58 to appropriately change the contact points of the contact pieces 72, 74, 76 of the switch switching mechanism 70, the switch members 62, 64, 66 can be set to desired switch contents. Can be changed. For example, FIG.
. Is connected to the return switch member 42 shown in FIG. It is also possible to easily change the correspondence (system order) of the return electric circuits to be associated with the three return switch members 42, 44, 46.

In FIG. 3, three switch members 62, 6
A case has been described in which a desired electric circuit is selected from five electric circuits for 4, 66 to change the contents. However, the present invention is not limited to this, and five electric circuits are used for five switch members. It is also possible to select a desired electric circuit. That is, the number of switch members formed on the lens controller side may be at least one or more, and the number of electric circuits formed on the TV camera side may be at least two or more. Is not limited.

Further, as means for switching the connection relationship between the switch members 62, 64, 66 and the respective electric circuits, a rotary switch or a plug-in pin may be used. Further, the connection relationship may be switched using a dip switch. In the above embodiment, the case where the switch switching mechanism 70 is provided in the lens unit 12 has been described as an example. However, the switch switching mechanism 70 may be incorporated in the camera unit 14 or may be provided on the lens controller side.

In the above embodiment, the return switch and the intercom switch have been described as examples. However, the present invention can be widely applied to other control switches for operating the operation of the television camera. In the present embodiment,
Although an example in which the control switch is provided with a zoom rate has been described as an example, a single controller in which only the control switch is formed may be used.

[0020]

As described above, according to the television camera control device of the present invention, at least one switch member functioning as a control switch is provided on the control side, and the controlled television camera side or the television lens device is provided. On the side, two or more electric circuits capable of performing a predetermined operation by an electric signal output according to the operation of the switch member are prepared, and the connection relationship between the switch member and the electric circuit is determined according to the operation of the selection means. Since the switching means which can be arbitrarily changed is provided, there is an advantage that the connection between the switch member and the electric circuit can be easily changed, and the setting and change of the contents of the switch member can be easily performed.

As a result, the contents of the control switch can be set according to the usage form of the user, and there is an advantage that the contents of the control switch can be easily changed and expanded.

[Brief description of the drawings]

FIG. 1 is a side view of a broadcast television camera to which a television lens control device according to the present invention is applied.

FIG. 2 is an enlarged side view of a lens controller.

FIG. 3 is a diagram illustrating an example of a connection relationship between a switch member and an electric circuit;

[Description of Signs] 10 ... TV camera 12 ... Lens unit 14 ... Camera unit 22 ... Pan / tilt bar 28 ... Lens controller 34 ... Zoom ring 42,44,46 ... Return switch member 50 ... Intercom switch member 54 ... Dial member 56, 57, 58: rotary switch 62, 64, 66: switch member 70: switch switching mechanism

Claims (1)

[Claims] At least one switch member, such as a return switch or an intercom switch, which functions as a control switch for operating the operation of a television camera, and is provided on the television camera side or on a television lens device side connected to the television camera. Operating at least two systems of electric circuits, each of which can perform a predetermined operation by being guided by an electric signal output in response to the operation of the switch member, and operating a selection unit to determine a connection relationship between the switch member and the electric circuit; A control device for a television camera, comprising: switching means for switching according to: