JPH0715801B2 - Lighting equipment - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a lighting device capable of changing various lighting characteristics such as a light emission amount, a light emission color, and an irradiation direction.

[Background technology]

An illumination device that can freely change the emission color among the illumination characteristics has already been proposed in, for example, Japanese Patent Publication No. 60-32922.

As shown in FIG. 3, this device is a lens formed by connecting a plurality of elongated and semi-cylindrical lens groups 1 ... Which face each other in the irradiation direction of a white light source 1 composed of an incandescent lamp. The plate L is arranged, and the red filter fr, the blue filter fb, and the green filter are arranged on the irradiation side of the lens plate L.
It is configured by arranging a filter plate F in which fg is sequentially connected. One end of the lens plate L is attached to the structure K by a coil spring s, and the other end is in contact with the peripheral portion of the eccentric cam C. The eccentric cam C is attached to almost the tip of a shaft a2 from a gear train h connected to a drive shaft a1 of a drive device 2 such as a motor.

In such a device, the light from the light source 1 is transmitted to the lens group 1 ...
Since the light is appropriately refracted and condensed by the lens and then passes through the filter plate F and is irradiated downward in the drawing, the irradiation light has a light color corresponding to the color of the filter plate F passing through the lens plate L and the filter. By adjusting the relative position with respect to the plate F, various irradiation light colors can be obtained. That is, the drive device 2 is actuated, the gear train h is shifted to an appropriate rotation speed to rotate the eccentric cam C, and thereby the lens plate L is gradually translated in the left-right direction in the drawing to continuously transmit transmitted light. It is also possible to obtain a desired constant color by stopping the driving device 2 at a predetermined position.

A specific control method of the conventional lighting device will be further described below with reference to FIGS. 4 to 6.

That is, regarding the specific configuration of the illumination device shown in FIGS. 4 to 6, the present inventor has previously filed Japanese Utility Model Application No. 61-27149 (Japanese Utility Model Publication No. 4-439).
No. 99), a white light source 1 such as an incandescent lamp is connected to both ends of an AC power source 3 such as a commercial power source via a power switch 4 and a driving device 2 such as a motor and the like. It is configured by connecting a series circuit with a switch element 5 that controls the operation of the drive device 2, and connecting a control circuit Q that controls opening / closing of the switch element 5 in parallel with the series circuit. The driving device 2, the switch element 5, and the control circuit Q constitute the color matching device A together with the lens plate L and the filter plate F (not shown in FIGS. 4 and 5) shown in FIG. The luminaire B is configured to include the color matching device A and the light source 1. Also, the power switch 4 is the existing 2
The wire switch wall switch device S corresponds to this, for example.

In the color matching device A, as shown in FIG. 5, the rectifier circuit 6 is connected to both ends of the AC power source 3 via the power switch 4, and the drive device 2 and the switch element 5 are connected to the DC output terminal of the rectifier circuit 6. A series circuit of the barrel main transistor 7 is connected. On the other hand, the same DC output terminal of the rectifier circuit 6 is connected to the smoothing power source section 12 composed of the resistors 8 and 9, the smoothing capacitor 10 and the constant voltage diode 11, and the output terminal of the smoothing power source section 12 has a resistor 13 Circuit consisting of capacitor and capacitor 14
15, series circuit of resistor 16 and auxiliary transistor 17, side by side,
A series circuit of a resistor 18 and a thyristor 19 is connected in parallel with each other, and a capacitor 14 which is a timer output terminal of a timer circuit 15
The base and emitter of the auxiliary transistor 17 are connected to both ends of the auxiliary transistor 17 via the constant voltage diode 20 and the base resistor 21,
The control terminals of the thyristor 19 are connected to both ends of the auxiliary transistor 17, and the main transistor 7 is connected to both ends of the thyristor 19.
Is connected between the base and emitter.

The operation of such a device will be described below with reference to the time chart of FIG. 1A shows an on / off state of the power switch 4, FIG. 1B shows a blinking state of the light source 1, and FIG. 1C shows an on (operating) off (stop) state of the driving device 2. Show.

Now, as shown in FIG. 6 (a), when the power switch 4 is turned on at time t1, the light source 1 is simultaneously turned on as shown in FIG. 6 (b). On the other hand, the smoothing capacitor 10 is charged through the resistor 8, and a smoothing DC voltage which is made constant by the constant voltage diode 11 is generated across the smoothing capacitor 10. Since the time constant of the timer circuit 15 is set to about 1.5 seconds, for example, the auxiliary transistor 17 does not turn on for a while after the power is turned on, and the thyristor 19 is triggered via the resistor 16 Turn on. Therefore, the main transistor 7 becomes short-circuited by the thyristor 19 between its base and emitter, the main transistor 7 does not turn on, and the drive device 2 remains off as shown in FIG. 6 (c). is there.
Therefore, the emission color of the lighting device remains unchanged. Note that the auxiliary transistor 17 is turned on after a lapse of a predetermined time after t1 and the control terminals of the thyristor 19 are short-circuited by the auxiliary transistor 17, but since a current more than the holding current has already flowed in the thyristor 19, , Even if there is no signal between the control ends, it keeps on.

Next, consider a case where the power switch 4 is once turned off at time t2 and turned on again at time t3 which is shorter than the time constant of the timer circuit 15, for example, about 1 second later. In this case, the capacitor 14
Since a large capacitance is selected, the auxiliary transistor 17 maintains the ON state by the discharge current from the capacitor 14 even in the power-off section from t2 to t3. On the other hand, smoothing capacitor
Since 10 is completely discharged within a few cycles of the AC power supply 3, the current flowing through the thyristor 19 once becomes below the holding current and the thyristor 19 is turned off. Therefore, when the power switch 4 is turned on again at time t3, the auxiliary transistor
The gate signal is not supplied to the thyristor 19 since the 17 continues to be in the ON state, and the thyristor 19 is not turned on this time. Therefore, the main transistor 7 is turned on, the driving device 2 is activated from the time t3, the lens plate L starts to move in parallel, and the emission color continuously changes.

Next, the power switch 4 is turned off at time t4 when the emission color of the device B becomes a desired color, and this time, the power switch 4 is turned on again at time t5, which is sufficiently longer than the time constant of the timer circuit 15, for example, about 3 seconds later. Then, at this time, since the capacitor 14 is fully discharged, the auxiliary transistor 17 is not turned on. Therefore, at time t5, the thyristor 19 receives the gate signal via the resistor 16 and turns on, the main transistor 7 remains in the off state as it is, the driving device 2 remains stopped after time t4, and the lighting device B The light emission of the desired color is performed after time t5.

As described above, the above-mentioned conventional device can control not only the blinking of the lighting fixture B but also its toning by operating the power switch 4 for a short time or for a long time. The existing wall switch device can be used as it is for the color matching control without any wiring work.

However, in the above-mentioned conventional device, one illumination characteristic such as the emission color can be changed other than the blinking of the light source 1, and other illumination characteristics such as dimming cannot be simultaneously controlled.

On the other hand, the inventor of the present invention has considered the structure shown in FIG. 7 as a device capable of changing two illumination characteristics, i.e., emission color and emission amount, that is, capable of both color adjustment and light adjustment.

That is, in FIG. 7, the part of the wall switch device S in FIG. 4 is connected in series with the power switch 4 and the parallel circuit of the diac TRIAC TH and the resistor R, and in parallel with the TRIAC TH. And a dimming control unit D that is operated.

In such a device, the light source 1 is dimmed by the phase control of the triac TH by the operation of the dimming control section D, and on the other hand, the toning control can be performed by the toning device A as described above. Incidentally. The resistor R is set to a relatively low impedance so as to apply a sufficient voltage to both ends of the color matching device A for the color matching operation even during the rest period of the triac TH.

However, in such a device, the wall switch device S needs to have a special structure, and there is a drawback that the existing wall switch device cannot be used as it is. In addition, if the dimming degree is deepened (the output is reduced), the color adjustment is performed. The voltage across device A is the resistance R
However, there is a possibility that the color adjustment operation will be extremely small and a limit operation or a malfunction may occur. In addition, changing the two illumination characteristics, toning and dimming, is the utmost effort. There is also a drawback in that it cannot be expanded to control (for example, changing the irradiation direction).

[Object of the Invention]

The present invention has been made in view of the above drawbacks, and an existing power switch such as a wall switch device is used as it is to emit light,
(EN) Provided is an illumination device which can easily control many illumination characteristics such as a light emission amount and an irradiation direction as required.

[Disclosure of Invention]

The present invention is provided with a plurality of series circuits of a drive device and a switch element and a control circuit section for controlling the opening and closing of each switch element according to the type of illumination characteristic to be controlled, and further, corresponding to the off operation of a power switch. By providing the switching means for sequentially selecting the control circuit unit to be operated,
A different control circuit unit is operated each time the power switch is turned off so that each lighting characteristic of the lighting load can be individually controlled. The present invention will be described below based on the embodiments shown in the drawings.

FIG. 1 shows an embodiment of the present invention. The control circuit Q shown in FIG. 5 is provided in parallel with the thyristor 19 in the conventional example shown in FIG.
Similar to (corresponding to the first control circuit section 25), a second control circuit section 26 including a second timer circuit 22, a second auxiliary transistor 23, a second thyristor 24, etc. is added. Is. That is, the resistor 27 is connected to both ends of the first thyristor 19.
And a second timer circuit 22 including a capacitor 28 and a resistor 29.
And a series circuit of the second auxiliary transistor 23 and a series circuit of the resistor 30 and the second thyristor 24 are connected in parallel with each other, and both ends of the capacitor 28 are connected to each other via the constant voltage diode 31 and the base resistor 32. Is connected between the base and emitter of the auxiliary transistor 23, the both ends of the second auxiliary transistor 23 are connected between the control ends of the second thyristor 24, and both ends of the second thyristor 24 are switched via the resistor 33. The element is connected between the base and emitter of the second main transistor 34. Also, a second drive device 35 is connected in series with the second main transistor 34, and the series circuit of the second main transistor 34 and the second drive device 35 includes the first main transistor 7 and the first main transistor 7. It is connected to the DC output side end of the rectifier circuit 6 in parallel relationship with the series circuit of the driving device 2. Furthermore, a transistor 36 is connected between the base and emitter of the first main transistor 7, and this transistor 36
The base-emitter is connected to both ends of the second thyristor 24 via a base resistor 37. The second driving device 35 is composed of a motor and the like like the first driving device 2,
For example, it is used to change the irradiation direction of the light source 1 or to change the height of the light source 1 from the floor surface like an electric lifting device.

In addition, in the present embodiment, the transistor 36 operates as the switching means 38 by the functions of the auxiliary transistors 17 and 23 and the thyristors 19 and 24 in the control circuit portions 25 and 26.

The operation of this embodiment will be described below with reference to FIG. 2 (a) to 2 (c) show the on / off state of the power switch 4, the blinking state of the light source 1 and the operating state of the driving device 2, respectively, as in FIG. 6, and FIG. Second drive device 35
Shows the operating state of.

First, when the power switch 4 is turned on at time t1, the light source 1 is turned on. At this time, as described in the conventional example, the thyristor
Since 19 is turned on, the driving device 2 does not operate, and the lighting device B
The illuminating light color of does not change. At the same time, since both ends of the thyristor 19 are short-circuited, the main transistor 34 does not turn on,
Therefore, the driving device 35 does not operate, and, for example, the irradiation direction of the lighting fixture B does not change (the driving device 35 is the light source 1 or the fixture B).
If the motor is to change the irradiation direction of). During this time,
The capacitor 14 of the first timer circuit 15 is charged, and the auxiliary transistor 17 is turned on after the timer time (for example, 1.5 seconds) has elapsed, but the thyristor 19 is turned on once at time t1 and a current larger than the holding current continues to flow. Therefore, even if the control terminals are short-circuited by the transistor 17, they are not turned off.

Next, when the power switch 4 is once turned off at time t2 and is turned on again at time t3 which is shorter than the timer time, for example, about 1 second later, the auxiliary transistor 17 causes the capacitor 14
Is kept on for t2 to t3 due to the discharge current from, while the thyristor 19 is turned off at time t2,
After time t3, the gate signal is not obtained and the thyristor 19 remains off. Therefore, at time t3, the base current is supplied to the main transistor 7 via the resistor 18 to turn on the base current, and the first driving device 2 operates to continuously change the emission color of the lighting fixture B. At this time, the capacitor 28 of the second timer circuit 22 is charged by the voltage appearing across the thyristor 19, but the time constant of the second timer circuit 22 is about the same as the time constant of the first timer circuit 15. Since it is set to about 1.5 seconds, the transistor 23 does not turn on immediately.
Therefore, the thyristor 24 receives the gate signal via the resistor 29 and is turned on at the destination, and the base and emitter of the transistor 36 are short-circuited. Therefore, the transistor 36 is not turned on, and the main transistor 7 is turned on after time t3. maintain.
On the other hand, in the main transistor 34, since the thyristor 24 is turned on, the base-emitter is short-circuited and remains in the off state. Although the transistor 23 is turned on for a while after the time t3, a current more than the holding current continues to flow in the thyristor 24 which is already turned on.
Keeps on.

Then, at time t4 when the desired color is obtained, the power switch 4 is temporarily turned on.
Is turned off, and is shorter than the timer time, for example, time t5 about 1 second later.
When the power switch 4 is turned on again with, the auxiliary transistor
Since 17 continues to be in the ON state, both ends of the thyristor 19, which is once turned off at time t4, that is, the resistor 30 and the thyristor 24.
A voltage appears at both ends of the series circuit. However, like the first auxiliary transistor 17, the second auxiliary transistor 23 also maintains the ON state for t4 to t5 due to the discharge current of the capacitor 28 which has already been sufficiently charged, so the second auxiliary transistor 23 is turned off at the time t4. The thyristor 24 does not obtain the gate signal and remains off after the time t5, and the base current is supplied to the main transistor 34 via the resistors 30 and 33 to turn it on. Therefore, the second driving device 35 is activated, and the luminaire B now swings to change the garden irradiation method.
At this time, the base current is simultaneously supplied to the transistor 36 via the resistors 30 and 37, and the transistor 36 is turned on, so that the main transistor 7 is short-circuited between the base and the emitter and turned off. Therefore, the driving device 2 does not operate, and the emission color does not change while maintaining the desired color.

Further, when the power switch 4 is turned off at time t6 and is turned on again at time t7 which is sufficiently longer than the timer time, for example, about 3 seconds later, the capacitors 14 and 28 of the first and second timer circuits 15 and 22 become In both cases, the discharge is completed during the off period, so that the state returns to the initial state, that is, the state at time t1.

As described above, according to the present embodiment, the control circuit units 25 and 26 to be operated are selectively switched according to the OFF operation of the power switch 4, so that a plurality of types of illumination characteristics can be easily performed. Can be controlled.

In the present embodiment, the drive equipment to be operated is selectively switched depending on the length of the off time of the power switch 4. However, a ring counter circuit or the like is used, and this ring counter circuit is used every time the power switch 4 is turned off. The control circuit units 25 and 26 may be sequentially switched by applying a trigger, or any other structure may be used as long as the control circuit unit is switched in response to turning off the power switch 4. It doesn't matter. In addition, the number of control circuit units and driving devices is set to three or more in the same manner as in the above embodiment, and more types of illumination characteristics (for example, light emission amount, light source height, light collection degree, etc.) are changed. But of course it doesn't matter. Furthermore, the driving device may be, for example, a solenoid, a stepping machine, or the like instead of the motor.

〔The invention's effect〕

As described above, according to the present invention, a plurality of series circuits of a drive device and a switch element and a control circuit unit for controlling the opening and closing of each switch element are provided in accordance with the type of lighting characteristics to be controlled, and the power switch is turned off. By providing switching means for sequentially selecting control circuit units to be operated according to the operation, different control circuit units are operated each time the power switch is turned off so that each lighting characteristic can be individually controlled. Therefore, it is possible to easily and surely control many illumination characteristics such as the color of emitted light, the amount of emitted light, the direction of irradiation, etc. by using the existing power switch such as the wall switch device as it is.

[Brief description of drawings]

FIG. 1 is a circuit diagram showing an embodiment of the present invention, FIG. 2 is a time chart for explaining the same as above, FIG. 3 is a schematic diagram showing an example of a toning structure, and FIG. 4 is an example of a conventional device. FIG. 5 is a block circuit diagram, FIG. 5 is a specific circuit diagram of the above, FIG. 6 is a time chart for explaining the same as above, and FIG. 7 is a block circuit diagram showing another conventional example. 1 ... Light source, 2,35 ... Drive device, 3 ... AC power supply 4 ... Power switch, 7,34 ... Main transistor 25,26 ... Control circuit section, 38 ... Switching means

Claims (2)

[Claims] 1. A power supply, a lighting load, a power supply switch interposed between the power supply and the lighting load, and a power switch connected to both ends of the power supply to individually provide a plurality of types of lighting characteristics with different lighting loads. A plurality of series circuits configured by a series connection of a plurality of drive devices to be changed and a switch element for controlling the operation of each drive device, and each switch element connected in parallel to each other through a power switch at both ends of a power supply. An illuminating device comprising: a plurality of control circuit units for controlling opening and closing of each of the control circuits; and switching means for sequentially and selectively operating each control circuit unit in response to an off operation of a power switch. 2. The lighting device according to claim 1, wherein one driving device changes a light emission color of the lighting load, and the other driving device changes an irradiation direction of the lighting load.