JP2003017288A - Illumination apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an illumination apparatus that is capable of performing dimming even if combined with a bulb type fluorescent lamp. SOLUTION: This is an illumination apparatus 2 that comprises a light source lamp L and a dimming device 3 that has a bidirectional thyristor 5 for performing phase control of the commercial power source AC and makes dimming of the light source lamp L. The dimming device 3 comprises a dimming device 3 that makes lighting to the illumination setting state before the lights- out, after lighting nearly all the light source lamps L, when the light source lamps L are re-lighted after the light source lamps L are turned off in the illumination setting state in which the phase control becomes the prescribed phase angle or less.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lighting fixture equipped with a dimming device having a bidirectional thyristor for dimming a light source lamp.

[0002]

2. Description of the Related Art Conventionally, as a dimming device for dimming a light source lamp, as shown in FIG. 7, there is a dimming device provided with a phase control circuit having a bidirectional thyristor for performing phase control of a commercial power source. Such a light control device is installed on a wall surface of a building as shown in FIG. 8 or is incorporated in a lighting fixture 100 having an incandescent lamp (not shown) as a light source as shown in FIG. It

This luminaire 100 has a substantially disc-shaped main body 1
A plurality of lamp holders 102 each having a socket corresponding to the base of an incandescent light bulb are provided around the periphery of 01, and the light control device 105 having the above-described configuration is provided inside the cylindrical case 104 at the center of the main body 101. Has been done. Then, the upper surface of the main body 101 is fixed to the ceiling surface, and a remote control light receiving unit (not shown) integrated with the light control device inputs a remote control light control signal by infrared rays to control the incandescent light bulb. It can be illuminated.

By the way, recently, as a light source lamp, the lighting fixture 100 through the base 103 similar to the incandescent lamp.
A compact fluorescent lamp (not shown) that is attached to a vehicle is widely used (see FIG. 10). In this compact fluorescent lamp, a high frequency lighting device is generally formed integrally with the fluorescent lamp. Therefore, it is possible to perform lighting equivalent to or brighter than an incandescent lamp with low power consumption, and it is possible to easily realize energy saving.

However, in most cases, the bulb-type fluorescent lamp cannot be used in combination with the dimmer of the above construction. That is, in the phase control method for performing dimming of the incandescent light bulb, as shown in FIG. 11, for example, in the setting position state of the dimming setting means such as the slide volume 201 in the wall mount type dimming device 200 shown in FIG. In addition, the phase angle at which the AC of the commercial power source conducts is shown in (a).
Power is supplied in the dimming state of 0 ° full lighting, (b) 50 ° phase angle, and (c) 130 ° phase angle. Therefore, in order to adjust the brightness of the fluorescent lamp, which is a discharge lamp, through the high-frequency lighting device, a high-frequency AC power supply of a predetermined voltage or more that can maintain the discharge state of the fluorescent lamp is supplied, and the frequency of the high frequency is changed. It needs to be dimmed.

[0006]

However, in the above-mentioned prior art, the high-frequency lighting device incorporated in the bulb-type fluorescent lamp is generally an inverter type lighting circuit, and the AC of the commercial power source is once converted to DC. After that, the high frequency switching operation of the switching element converts the high frequency power.

Therefore, when the slide volume is continuously adjusted and the brightness is reduced to the state of the phase angle of 130 ° in FIG. The peak voltage decreases and the power supply time also decreases. Therefore, a predetermined voltage that can maintain the discharge state cannot be applied to the fluorescent lamp, and the dimming lighting state before extinguished does not occur. That is, if the power supply is turned off once with the brightness reduced, and then the power supply is turned on again to keep the dimming state, the fluorescent lamp will not light up. Further, in order to start the fluorescent lamp, it is necessary to heat the filament to a predetermined temperature or higher, but there is a problem that it cannot be turned on when the power is turned on with the brightness reduced. there were.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a lighting fixture capable of dimming even in combination with a compact fluorescent lamp.

[0009]

In order to achieve the above object, the lighting equipment of the present invention includes a light source lamp and a bidirectional thyristor for controlling the phase of a commercial power source, and dimming the light source lamp. A lighting fixture comprising a dimming device for performing the dimming device, wherein the dimming device is turned on again after being turned off in a dimming setting state in which the phase control is equal to or less than a predetermined phase angle. It is characterized in that it has a dimming control means for dimming and lighting the light source lamp to a dimming setting state before being extinguished after substantially all lighting.

With this configuration, for example, a light bulb lamp is used as the light source lamp, and the light source lamp is set by the bidirectional thyristor of the light control device in the dimming setting in the phase control state where the commercial power source has a predetermined phase angle or less. When the light is turned on again after the light is turned off, the light control lamp of the light control device causes the light source lamp to be almost entirely turned on, and then is dimmed to the dimming setting state before being turned off.

Further, it is preferable that the dimming control means is provided with a starting control section for starting and stopping the set dimming mode for performing the dimming lighting. In this case, when the setting dimming mode of the dimming control means is activated by the activation control unit, the light source lamps are almost entirely turned on, and then the dimming lighting state is set to the dimming setting state before being turned off, and the setting is performed. The dimming mode is stopped and normal dimming control is performed.

Further, the start-up control unit has identification means for identifying an incandescent light bulb of the light source lamp and a compact fluorescent lamp, and the setting dimming is performed when the distinguishing means identifies the compact fluorescent lamp. It is preferable to activate the mode. In this case, the incandescent bulb and the bulb-type fluorescent lamp of the light source lamp are automatically discriminated by the discrimination means, and when the dimming control means is activated by the activation control section, the light source lamp is substantially turned on and turned off. The dimming is turned on in the previous dimming setting state, and the dimming control unit is stopped to perform normal dimming control.

[0013]

1 to 4 show a first embodiment of the present invention corresponding to claims 1 and 2, and FIGS.
Shows a second embodiment corresponding to claim 3.

[First Embodiment] FIG. 1 is a block diagram showing a schematic configuration of a lighting apparatus according to a first embodiment of the present invention. FIG. 2 is an external view of a dimming control section of the lighting apparatus. FIG. 3 is an explanatory diagram showing a dimming operation of the lighting fixture, and FIG. 4 is an explanatory diagram of a dimming control unit of the lighting fixture.

The luminaire 2 of this embodiment has a light source lamp L and a bidirectional thyristor 5 for controlling the phase of a commercial power source, and a dimming device 3 for dimming the light source lamp L.
When the light control device 3 is turned on again after the light source lamp L is turned off in a light control setting state in which the phase control is equal to or less than a predetermined phase angle, the light control device 3 includes a light source lamp. Has a dimming control means for dimming the dimming light to a dimming setting state before being extinguished.

Further, in the luminaire 2 of the embodiment, the dimming control means is provided with the activation control section 4 for activating and deactivating the set dimming mode for performing the dimming lighting.

More specifically, as shown in FIG. 1, the lighting device 2 includes a bidirectional thyristor 5 and a bidirectional thyristor 5.
The dimming device 3 for controlling the continuity of the light is provided with the dimming control unit corresponding to the dimming control means. The dimming device 3 has the same chandelier center as that shown in FIG.
It is formed by being housed inside the case of the lighting fixture body made of a synthetic resin material. The main body is fixed to the ceiling surface and is used in a state where it can be remotely controlled by a dimming signal from the infrared remote controller 6. The lighting fixture 2 is controlled to supply the commercial power source AC to the light control device 3 and the light source lamp L via the indoor wiring wall switch 1.

The dimming device 3 corresponds to dimming control means,
For example, a control unit 31 formed by a one-chip microcomputer, a light receiving unit 32 for a dimming signal by the infrared remote controller 6 which is an input to the control unit 31, a changeover switch 41, and an output signal from the control unit 31. And a bidirectional thyristor 5 controlled by. The control unit 31 includes
A power supply of a predetermined voltage value is supplied from a DC power supply (not shown) that steps down the AC of the commercial power supply AC and converts it to DC. In this case, an internal RAM (random number) serving as a storage unit of the one-chip microcomputer (not shown) is supplied. A battery for storing dimming data of the access memory) is provided. The control unit 31 brings the bidirectional thyristor 5 into conduction under a predetermined phase angle condition set via the light receiving unit 32.

The changeover switch 41 corresponds to the activation control section 4, and in this case, as shown in FIG.
The infrared remote control 6 which is the bottom surface in the attached state of
Switch 3 for setting the correspondence between the lighting fixture 2 and the lighting fixture 2.
It is similarly arranged on the operation panel surface of the dimmer 3 provided. When the switch 41 is turned on again after being turned off in the dimming setting state in which the phase control for turning on the bidirectional thyristor 5 described later, which is capable of dimming and lighting the compact fluorescent lamp, is below a predetermined phase angle. First, the set dimming mode in which the light source lamp L is substantially fully lit and then the dimming is set to the dimming setting state before being turned off is started and stopped. That is, as shown in the figure, the changeover switch 41 is set to the side for dimming control of the compact fluorescent lamp, and the dimming device 3 is set.
When the set dimming mode is started, the light source lamp L is turned on substantially all, and then dimming is turned on to the dimming setting state before being turned off. Further, when the changeover switch 41 is set to the side for dimming control of an incandescent light bulb different from the above, the set dimming mode is stopped and normal dimming control is performed.

In the internal ROM (read-only memory) that serves as a storage unit of the one-chip microcomputer of the control unit 31, a light source lamp L is provided, for example, as shown in FIG. When the dimming setting state T1 in which the phase control of the commercial power source AC is equal to or less than a predetermined phase angle is performed and the dimming setting state T1 is turned off and then turned on again (T2), as shown in FIG. In addition, after the light source lamp L is turned on almost completely, the set dimming mode is performed in which the dimming is set to the dimming setting state before being turned off.
A processing program for dimming control of the contents of the timing chart is stored. That is, as shown in FIG. 4, when it is determined that the setting switch 41 is in the setting dimming mode, the above-mentioned infrared remote control 6 sets the dimming setting condition to, for example, a phase angle condition of 50 °. When the light is dimmed, when the wall switch 1 is once turned off in that state and then turned on again, the phase angle of 50 ° is changed to 18
A setting dimming mode A is set in which the dimming lighting is performed in a dimming setting state of 0 ° phase angle condition, that is, after the light source lamp L is substantially fully lit and before being turned off, the phase angle is 50 °. When it is determined that the changeover switch 41 is in the normal dimming mode B setting state, the wall switch 1 is temporarily turned off while the infrared remote controller 6 is dimming the phase angle condition of, for example, 50 °. When the light is turned on again later, the light is turned on to the dimming setting state of the phase angle of 50 ° before turning off.

In the bidirectional thyristor 5, the phase angle of the alternating current of the commercial power source AC is changed from 180 ° to completely turn on the light source lamp L to 0 ° to turn off all of the light source lamp L, as in the prior art. The light source lamp L is controlled and supplied. In this case, as shown in FIG. 1, the light source lamp L
For this purpose, four bulb-type fluorescent lamps are used.

In the lighting fixture 2 described above, when a light bulb-type fluorescent lamp is used as the light source lamp L and the dimming control is performed,
Bidirectional thyristor 5 that controls the phase of commercial power supply AC
As shown in FIG. 3, for example, in the dimming setting of the phase control state T1 of 50 °, which is equal to or less than the phase angle of 150 °, when the fluorescent light bulb is turned off and then turned on again,
By the light control device 3, substantially all of the compact fluorescent lamp is turned on.
At this time, the DC voltage of the high-frequency lighting device for the compact fluorescent lamp is increased to restart the fluorescent lamp. As a result, the fluorescent lamp is surely started, and after being stabilized for a predetermined short time, the phase angle is gradually changed to the phase control state of 50 °, and the dimming lighting state of the setting before turning off is set. The lighting fixture 2 can be combined with a compact fluorescent lamp for dimming.

At this time, when the setting dimming mode of the dimming device 3 is activated by the changeover switch 41 serving as the activation control section 4, the light source lamp L is substantially entirely turned on, and thereafter, the dimming setting before extinguished. The dimming light is turned on in the state and the set dimming mode is stopped to be used as a normal dimming control. Thus, even if it is combined with an incandescent light bulb, dimming can be performed without a feeling of strangeness. Therefore, according to the lighting device 2 described above,

For example, a light bulb lamp is used as the light source lamp L, and the light source lamp L is set by the bidirectional thyristor 5 of the light control device 3 in the dimming setting of the phase control state where the commercial power source AC is below a predetermined phase angle. When the light source is turned on again after being turned off, the control unit 31 of the light control device 3 causes the light source lamp L to be almost entirely turned on, and thereafter is dimmed to the dimming setting state before being turned off. Dimming can also be performed in combination with a fluorescent bulb.

The changeover switch 41 is used to control the control section 31.
When the set dimming mode is started, the light source lamp L is substantially entirely turned on, and then the dimming setting state before turning off is turned on, and the set dimming mode is stopped to perform normal dimming. Since the light is controlled, it can be dimmed even if combined with an incandescent light bulb.

[Second Embodiment] FIG. 5 is a block diagram showing the schematic arrangement of a lighting apparatus according to the second embodiment, and FIG.
[Fig. 6] is an explanatory view showing a dimming operation of the lighting fixture.

The lighting equipment of this embodiment is different from that of the first embodiment only in the structure of the activation control unit, and the other components are the same as those of the first embodiment. In the luminaire 2 of the embodiment, the activation control unit 4 has the light source lamp L.
Of the incandescent light bulb and the light bulb type fluorescent lamp, and when the identification means distinguishes the light bulb type fluorescent lamp, the setting dimming mode is activated.

More specifically, the activation control section 4 of this one is formed by a detection circuit 42 which outputs a signal to the control section 31, and the detection circuit 42 detects the load current passing through the bidirectional thyristor 5. Distinguish between incandescent bulbs and compact fluorescent bulbs.

The detection circuit 42 has a current transformer (not shown) corresponding to the identification means, detects a change in the detected current of the current transformer, detects the load current value, and detects the load current. When it is low, the light source lamp L is determined to be a compact fluorescent lamp, and a detection signal is output to the one-chip microcomputer of the control unit 31.

In the luminaire 2 described above, as shown in FIG. 6, for example, in the dimming setting of the phase control state T1 of 50 ° which is less than the phase angle of 150 °, the bulb-type fluorescent lamp is turned off and then turned on again. When a detection signal for determining that the light source lamp L is a compact fluorescent lamp is output from the detection circuit 42 when performing, the light is adjusted to a phase angle condition of, for example, 50 ° in the light adjustment setting state by the infrared remote controller 6 described above. When
In that state, when the wall switch 1 is once turned off and then turned on again, the phase angle condition is 180 ° instead of the 50 ° phase angle, that is, after the light source lamp L is turned on substantially completely, The above-described set dimming mode is performed in which the dimming is turned on in the dimming setting state of the phase angle. The detection circuit 42
When it is determined that the light source lamp L is an incandescent light bulb, when the wall switch 1 is once turned off and then turned on again by the infrared remote controller 6 in a state where the light is adjusted to a phase angle condition of 50 °, for example, The dimming light is turned on in the dimming setting state of the phase angle of 50 ° before being turned off.

Therefore, according to the lighting apparatus 2 described above, the incandescent lamp and the light bulb type fluorescent lamp of the light source lamp L are automatically discriminated by the current transformer, and the setting dimming mode is activated by the detection circuit 42. When the light source lamp L is turned on, almost all of the light source lamp L is turned on and dimming is turned on to the dimming setting state before being turned off, and the set dimming mode is stopped to perform normal dimming control. Both the compact fluorescent lamps automatically dimm the light without any discomfort, which makes it more convenient.

[0032]

The present invention is carried out as in the above-described embodiment, and in the luminaire according to claim 1, for example, a light bulb type fluorescent lamp is used as the light source lamp, and a bidirectional thyristor of the light control device is used. In the dimming setting of the phase control state in which the commercial power source has a predetermined phase angle or less, when the light source lamp is turned off and then turned on again, the dimming control means of the light control device causes the light source lamp to be almost entirely turned on. After that, the dimming is turned on to the dimming setting state before being turned off, so that it is possible.

Further, in the luminaire according to the second aspect of the present invention, when the activation control unit activates the set dimming mode of the dimming control means, substantially all of the light source lamps are turned on, and after that, before turning off. The dimming is turned on in the dimming setting state, and the set dimming mode is stopped to perform the normal dimming control. Therefore, the dimming can be performed comfortably even when combined with the incandescent light bulb.

Further, in the lighting apparatus according to the third aspect, the incandescent lamp and the light bulb type fluorescent lamp of the light source lamp are automatically discriminated by the discriminating means, and the dimming control means is activated by the activation control section. When the light source lamp is turned on, almost all the light source lamps are turned on and dimming is turned on to the dimming setting state before being turned off, and the dimming control unit is stopped to perform normal dimming control. Both types of fluorescent lights are automatically dimmed without any discomfort, which makes them easy to use.

[Brief description of drawings]

FIG. 1 is a block diagram showing a schematic configuration of a lighting fixture according to a first embodiment of the present invention.

FIG. 2 is a front view showing an external appearance of a dimming control unit of the lighting fixture.

FIG. 3 is an explanatory diagram showing a dimming operation of the lighting fixture.

FIG. 4 is an explanatory diagram of a dimming control unit of the lighting equipment.

FIG. 5 is a block diagram showing a schematic configuration of a lighting fixture according to a second embodiment.

FIG. 6 is an explanatory diagram showing a dimming operation of the lighting fixture.

FIG. 7 is a block diagram showing a schematic configuration of a lighting fixture that is a conventional example of the present invention.

FIG. 8 is a front view showing the outer appearance of an example of the light control device.

FIG. 9 is a perspective view showing an appearance of an example of a lighting fixture.

FIG. 10 is an explanatory diagram showing a schematic configuration of the lighting fixture.

FIG. 11 is an explanatory diagram showing a dimming operation of a lighting fixture that is a conventional example of the present invention.

[Explanation of symbols]

2 lighting equipment 3 Light control device 4 Start control unit 5 bidirectional thyristors AC commercial power supply L light source lamp

Claims (3)

[Claims] 1. A lighting fixture comprising: a light source lamp; and a dimming device for dimming the light source lamp, the dimming device having a bidirectional thyristor for controlling the phase of a commercial power source, wherein the dimming device comprises: When the light source lamp is turned off in the dimming setting state in which the phase control is equal to or less than the predetermined phase angle and then turned on again, the light source lamp is turned on to the dimming setting state before turning off after almost all lighting. A luminaire having a dimming control means. 2. The luminaire according to claim 1, wherein the dimming control means is provided with a start-up control unit for starting and stopping the set dimming mode for performing the dimming lighting. 3. The activation control unit has identification means for identifying an incandescent light bulb of the light source lamp and a compact fluorescent lamp, and the setting dimming mode when the distinguishing means identifies the compact fluorescent lamp. The lighting device according to claim 2, wherein the lighting device is activated.