JPS5857879B2 - Stage memory dimmer - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a stage memory dimming device that automatically performs stage lighting by memory reproduction, and is used to manually switch when it is desired to modify and change the memory reconcentration lighting level. This invention relates to a stage storage light control device that uses a touch switch to improve operability.

Conventionally, in stage memory dimmers, when the stage is illuminated by automatic dimming using memory playback output, when it becomes necessary to correct or change the lighting level, the automatic dimming state can be changed so that manual operation can be performed. A switch to release the fader was attached to the fader, but the switch had a large surface area and was difficult to install.Moreover, after operating the switch,
There was a problem in that it was necessary to operate the knob for adjusting the dimming state of the fader section, and quick operation was impossible.

That is, in the case of the conventional example shown in FIG. 1, the dimming unit 9 is provided because the current flowing to the lamp 1 must be controlled in order to control the brightness of the stage lighting lamp 1.

A dimming signal that operates the dimming unit 9 is sent to the fader section 3.
The dimming signal is sent from the preset fader of the dimming unit 9, and the firing phase of the thyristor built in the dimming unit 9 is changed to control the current flowing to the lamp 1.

The fader section 3 is configured with a preset fader consisting of a resistor 10 and a slide terminal 12 that slides on the resistor 10. Light control unit 9
The level of the dimming signal given to the dimmer changes.

When manually sending the dimming signal to the dimming unit 9, switch the switch 7 to the upper side, connect the output of the fader section 3 consisting of the preset fader to the dimming unit 9, and in this state, switch the switch 7 to the upper side. Slide terminal 12
slide the dimming signal of the desired dimming level to the fader section 3.
Try to get it as output.

In order to perform such a manual operation automatically, the manually determined dimming signal is stored in the storage/reproduction unit 4, and the switch 7 is switched to the lower side to perform the output signal of the storage/reproduction unit 4. The brightness of the lamp 1 is adjusted by controlling the light control unit 9.

Here, as the storage/reproduction method in the above-mentioned storage/reproduction section 4, there is a method in which the dimming signal is directly stored as an analog value using an analog memory element and a direct analog value is output, or a method in which the dimming signal is digitally converted and converted into a digital value. There are methods such as memorizing the value, pressing the button, and reconverting it to an analog value using a DA converter.

By the way, if it becomes necessary to correct or change the illumination level of lamp 1 while automatic dimming of re-lamp 1 is being performed by memory regeneration, switch 7 should be switched to the upper side and then manually operated. At this time, in order to prevent discontinuous changes in the illumination level, a comparison section is installed to compare the output signal from the storage/reproduction section 4 and the dimming signal from the fader section 3. 8, this comparison section 8 is configured to output a comparison signal when the dimming signal from the preset fader 3 and the output signal from the storage destination section 4 become equal, If the changeover switch 6 is closed when a comparison signal is generated, the connection state of the switch 7 configured by a relay contact etc. is changed over, and when switching to the manual state, the switch 6 is closed by manual operation. After that, slide the slide terminal 12, and when the comparison signal is output, switch the switch 7 to the upper side according to the comparison signal, and connect it.
The dimming state of the lamp 1 is controlled by the fader section 3 output.

Referring to the conventional example shown in FIG.
Thereby, the current flowing to the lamp 1 is controlled based on the output of the fader section 3 or the output of the storage/reproduction section.

Next, another conventional example will be explained with reference to FIG.

An adder circuit section 23 is provided upstream of the dimming unit 9 that controls the current flowing through the lamp 1, and a pair of input terminals of the adder circuit section 23 are output terminals a of the fader section 3'.

b, respectively.

One end of the resistor 19 is connected to the ground and the other end is connected to the slide terminal 16 that moves on the resistor 17, and the slide terminal 21 moves on the resistor 19 and is connected to the output terminal a. A slide terminal 22 is also connected to the output terminal, which moves on a resistor 20, one end of this resistor 20 is connected to a slide terminal 15 that moves on a resistor 18, and the other end of the resistor 20 is connected to ground. The resistors 17 and 18 are connected in common by crossing each other, and the voltage of the DC power supply 11 is applied to the resistors 17 and 18.

In the conventional example shown in FIG.
5. The pulse motor 24 constitutes a light control unit (control unit 2).

As shown in FIG. 2, the conventional circuit includes a preset fader A1 consisting of a resistor 19 and a slide terminal 21, a preset fader B1 consisting of a resistor 20 and a slide terminal 22, resistors 17 and 18, and a slide terminal 15.
It consists of a crossfader When performing dimming control by switching from dimming lamp 1 at the dimming level to dimming lamp 1 at the output dimming level of the other output end b(a), discontinuous illumination level In order to prevent such changes, the crossfader X is operated to smoothly change the dimming illumination level between output terminals a and b.

Therefore, for example, when slide terminal 16.15 is at the uppermost position, the setting value of preset fader A is 1.
The value of 00% and the value of 0% of the setting value of preset fader B are added by the addition circuit section 23, and the value is added to the dimmer unit 9.
As a result, the lamp 1 is lit at the output level of the output end a of the fader section, that is, the dimming setting level of the preset fader A.

When the twisted slide terminals 16 and 15 are located at 50φ in the middle of the resistors 17 and 18, output terminal a has an output of 50% of the setting f of preset fader A, and output terminal b
An output of 50% of the setting value of preset fader B is outputted to ``, respectively, and these values are added by the adder circuit section 23 and given to the dimming unit 9, and the illumination level of the lamp 1 is set by both preset faders A and H. It shines at the combined level by adding 50% of each setting value.

In this way, the slide terminal 16 of the cross-funi die.
By adjusting 15, preset faders A and B
Press the button to set the lighting level and switch from A to B or from B to A.
The navel illumination level will shift smoothly.

In the conventional example shown in FIG. 2, a pulse motor 24 is used to automatically move the slide terminals 16 and 17 on the crossfader X, and the rotation direction of this pulse motor 24 is to slide the slide terminal 16°15.

A storage/reproduction section 4 is provided for storing the movement of these slide terminals 16.degree. 15 and sending a reproduction signal to the pulse motor control circuit 25.

The pulse motor control circuit 25 controls the rotation of the pulse motor 24, and is connected to the oscillation circuit 26 and the switches 13 and 14. During automatic operation based on the output of the storage/reproduction unit 4, it is necessary to switch to manual dimming control state. When this occurs, the switch 13.14 is turned on to stop the operation of the pulse motor 24, and then the slide terminal 16.15 is moved to adjust the illumination of the lamp 1. In other words, when it is in the automatic dimming state. If it becomes necessary to switch to manual dimming mode, first press the switch 13.1 for stopping automatic dimming mode.
4 by manual operation and then slide terminal 16.1.
5 has to be manually slid and operated, and when a sudden operation is required, there are a large number of operation points, which is inconvenient.

The present invention has been provided in view of the above-mentioned points, and provides a touch switch as an automatic release switch for switching to a manual operation state during automatic operation of a light control device, and the touch switch is used to adjust a preset fader. 1 for optical signal adjustment
The object of the present invention is to provide a memory dimmer for a stage, which is installed inside the stage and is configured to cancel automatic operation at the same time as its size is measured, thereby enabling quick automatic dimmer control operation. be.

An embodiment of the present invention will be described in detail below with reference to the drawings.

FIG. 3 shows a circuit according to an embodiment of the present invention, which corresponds to the conventional circuit shown in FIG.

However, in the embodiment shown in FIG. 3, a knob 27 is fixed to the slide terminal 12 provided on the preset fader of the fader section 3, and the switch 6 of the conventional example shown in FIG. A touch switch 5 is provided instead, and the other configuration is the same as the conventional example shown in FIG.

This touch switch 5 is designed to turn on when the finger 1 27 is pressed, and the touch switch 5 uses an electrostatic type, pressure sensitive type, heat sensitive type 9 reflective photocoupler, etc. Any device may be used as long as it detects the touch of 27 and turns on and off.

However, the operation of the present invention is such that when the switch 7 is down and manual correction is required during automatic operation by memory replay, when the knob 1 27 is grasped, the touch switch 5 is automatically turned on, and then the memory replay is performed. When the comparing section 8 detects that the output of the section 4 and the output of the fader section 3 are equal, a switch 7 consisting of a relay contact is switched to the upper side, and the illumination level can be corrected by manual operation.

FIG. 4 shows another embodiment of the present invention corresponding to the conventional example shown in FIG. 2, in which slide terminals 16 and 15 of the crossfader
27 is fixedly installed, and touch switches 5, 5 are attached inside this detent 27.27, and the other structure is the same as that of the conventional example shown in FIG.

However, in the circuit implemented in FIG. 4, the number 27.
By providing touch switches 5, 5 in 27,
When at least one of the pauses 27 and 27 is pressed to manually set the dimming level, one of the touch switches 5.5 is turned on, sending a stop signal to the pulse motor control circuit 25, and the pulse motor 24 is turned on. Stop.

Therefore, during automatic operation based on the output signal of the storage/reproduction section 4,
When you want to switch to manual mode, just grab the knob 27 to turn on the touch switch 5, and the pulse motor 24 is set to the correct size.The fader section A allows you to manually set the dimming level and adjust the brightness of the lamp 1. become.

As described above, the present invention provides a touch switch on the fader section for switching between automatic control of the dimming unit control section by the output of the storage and reproducing section and manual control of the dimming unit control section by operating the fader section. Since it is installed in the knob for adjusting the dimming signal, when switching from automatic to manual type, you can omit one step of switch operation and simply operate the knob for adjusting the dimming signal in the fader section. Manual operation is now possible by simply pressing the button, making it possible to quickly switch from automatic to manual operation, greatly improving operability.Moreover, since the touch switch is integrated into one unit, installation of the switch is no more work. This has the effect of making it unnecessary and reducing space.

[Brief explanation of drawings]

FIG. 1 is a block diagram of a first conventional example, FIG. 2 is a block diagram of a second conventional example, FIG. 3 is a block diagram of a first embodiment of the present invention, and FIG. 4 is a block diagram of a second conventional example of the present invention. FIG. 2 is a block diagram of an embodiment. 1... Lamp, 2... Light control unit control section, 3゜3'-... Fader section, 4...
・Memory playback section, 5...Touch switch, 27.
・Curved.

Claims (1)

[Claims] 1. A dimming unit control section that controls the current flowing to the lamp, a fader section consisting of a preset fader and a crossfader for setting or changing the dimming level, and a dimming unit control section that controls the current supplied to the lamp, and a fader section consisting of a preset fader and crossfader for setting or changing the dimming level, and Regarding a stage memory light control device equipped with a memory playback section that controls the light control unit control section, there is a case where the light control unit control section is automatically controlled by the output of the memory playback section and when a part of the fader is operated. A memory dimmer for a stage comprising a touch switch for switching between manual control and manual control of a dimmer unit control section in a dimmer signal adjustment knob of a fader section.