JP5231030B2 - Lighting device, lighting state display device, and lighting fixture - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a discharge lamp lighting device without switching illuminating state against a setter's intention even in instantaneous power failure corresponding to a temporary off period of a power source switch. <P>SOLUTION: The lighting device turns on a light source with the power supplied from a power source. A power source measuring unit measures at least one of a period for which a power-supplied state with power-supply from the power source lasts and a period for which a not-power-supplied state without power-supply from the power source lasts. A period determining unit determines whether the period measured by the power source measuring unit is shorter than a predetermined period. A counting unit counts the number of times of the period determining unit that the period measured by the power source measuring unit is shorter than the predetermined period. A lighting circuit control unit changes the dimming level of the light source when the number counted by the counting unit is a first number. <P>COPYRIGHT: (C)2009,JPO&amp;INPIT

Description

  The present invention relates to a lighting device that adjusts the brightness of a light source, a lighting fixture that includes the lighting device, and a lighting system that includes a plurality of lighting fixtures.

In recent years, energy conservation efforts have been carried out in various forms in each industry.
The lighting device is always installed in the facility and consumes most of the power used in the facility. In order to increase the energy saving effect, it is desirable to set the illuminance of the lighting device appropriately.
Therefore, research on techniques for changing the illuminance of a lighting fixture has been conducted.

Japanese Patent Application Laid-Open No. 2004-133826 describes a mode setting unit that can set a lighting mode when the power is turned on in advance, and a lighting fixture provided with a backup power source that holds the set state of the mode setting unit.
Patent Document 2 describes a lighting fixture that switches between simultaneous lighting of a fluorescent lamp and an auxiliary lamp, lighting of only a fluorescent lamp, lighting of only an auxiliary lamp, and extinguishing according to switch input.
Japanese Patent Laid-Open No. 3-17998 JP-A-3-269996

In order to obtain an appropriate illuminance of the luminaire, a luminaire having a continuous light control function for changing the illuminance with time may be used.
However, lighting fixtures with a continuous dimming function need to be combined with a controller to control this continuous dimming function, which requires extensive installation work to build a lighting system, which increases costs. ing.

In residential lighting fixtures, as described in Patent Document 2, the fluorescent lamp and auxiliary lamp are turned on simultaneously, only the fluorescent lamp is turned on, only the auxiliary lamp is turned on, and turned off by operating the power switch provided on the wall. There are lighting fixtures that switch between.
However, in a facility lighting fixture used for building facilities or the like, a plurality of lighting fixtures are connected to one power switch. Therefore, there is a possibility that the dimming degree may be different for each lighting fixture due to a difference in setting timing for each lighting fixture.
Also, power fluctuations such as instantaneous power outages and sag occur in building facilities. With the above technology, there is a risk that dimming of all the lighting fixtures may be switched by a single instantaneous power failure, sag, or the like.

  The lighting device according to the present invention is a lighting device for a light source that is lit by power supplied from a power source, and a period in which power is supplied from the power source continues and a stop state in which power is not supplied from the power source continues. A power measurement unit that measures at least one of the measured period, a period determination unit that determines whether the period measured by the power measurement unit is shorter than a predetermined period, and a period measured by the power measurement unit And a lighting circuit control for changing the dimming level of the light source when the number of times counted by the count unit is a first number. And a section.

  According to the lighting device according to the present invention, it is possible to set an appropriate illuminance while suppressing costs, and to prevent a dimming setting value from being changed due to an instantaneous power failure or the like.

Embodiment 1 FIG.
In this embodiment, an illumination system including a lighting device that changes the dimming level of the light source when the power switch is turned on and off several times in succession will be described.

FIG. 1 is an overall view of a lighting system.
The lighting system includes a plurality of lighting fixtures 20 and a switch box 24.
Each lighting fixture 20 includes a fixture body 21 and a reflector 22.
A lighting device is attached to the instrument main body 21. Moreover, the lamp socket which supplies the electric power to the discharge lamp 23 which is the light source is connected to the both ends of the longitudinal direction of the instrument main body 21 via the electric wire, and is attached.
In FIG. 1, a discharge lamp 23 is attached to the lamp socket of the instrument main body 21.
The switch box 24 includes a first power switch 25 and a second power switch 26. The first power switch 25 controls connection with each lighting fixture 20. The second power switch 26 controls connection with a commercial power supply (AC power supply, AC). In the following description, the first power switch 25 and the second power switch 26 are simply called power switches.

  The illumination system includes a lighting device that detects the presence or absence of a commercial power source by operating a power switch (on and off) to change the dimming degree.

FIG. 2 is an internal configuration diagram of the lighting device according to this embodiment.
The lighting device includes a power rectifier circuit 1, an active filter circuit 2, an inverter circuit 3, a load circuit 4, a drive circuit 5, a microcomputer 6 (counting unit, lighting circuit control unit), a commercial power source detection circuit 7, and a power supply time detection unit. 8 (power supply measurement unit, period determination unit), power supply temporary stop detection unit 9 (power supply measurement unit, period determination unit), storage unit 10 (setting value storage unit, dimming level storage unit, count storage unit), control circuit Power supply 11 is provided.
The power rectifier circuit 1 is a circuit that rectifies a power supply voltage and removes noise.
The active filter circuit 2 is a circuit that boosts the power supply voltage to a predetermined DC voltage and shapes the input current waveform to improve the power factor by switching along the power supply voltage waveform.
The inverter circuit 3 is a circuit that generates a high-frequency voltage by alternately switching the FETs Q2 and Q3 with the reverse polarity voltage output from the drive circuit 5 from the DC voltage boosted by the active filter circuit 2. Further, a lighting circuit control unit (lighting control circuit) is connected to the inverter circuit 3, and the lighting of the discharge lamp can be controlled with all light and step dimming. Here, a microcomputer 6 described later is used as the lighting circuit control unit.
The load circuit 4 is a circuit for lighting the discharge lamp LA using the resonance of the inductor L2 and the capacitor C3.
The drive circuit 5 is a circuit that drives the inverter circuit 3.
The microcomputer 6 controls the dimming level of the discharge lamp LA.
The commercial power source detection circuit 7 is a circuit that detects the ON and OFF states of the commercial power source.
The power supply time detection unit 8 is a circuit that detects the supply time of commercial power.
The power supply pause detection unit 9 is a circuit that detects a pause in the supply of commercial power.
The storage unit 10 is a nonvolatile memory and stores a lighting mode (a value that the discharge lamp can take as a dimming level) and the like.

The operation of the lighting device will be briefly described.
A power line connected from the outside via a power switch SW provided on a wall or the like is inserted into the lighting fixture 20, and commercial power AC is supplied to the lighting device. The power rectifier circuit 1 converts the supplied commercial power supply into a DC voltage. The active filter circuit 2 converts the converted DC voltage into a boosted DC voltage and charges the capacitor C1. The inverter circuit 3 converts the DC voltage charged in the capacitor C1 into high-frequency AC power by the switching operation of the FETs Q2 and Q3. The drive circuit 5 controls the switching operation of the inverter circuit 3. The load circuit 4 supplies high-frequency AC power converted by the inverter circuit 3 to the discharge lamp through a circuit of an inductor L2 and a coupling capacitor C3.
Here, the inductor L2 controls the current flowing through the discharge lamp LA, and the coupling capacitor C3 is for cutting the DC component flowing into the inductor L2 and the discharge lamp LA. The starting capacitor C2 connected in parallel to the discharge lamp LA is for generating a high voltage when the discharge lamp LA is lit by resonance with the inductor L2.
In addition, the lighting device includes a power supply time detection unit 8 and a power supply temporary stop detection unit 9 on the output side of the power supply rectifier circuit 1. The power supply time detection unit 8 and the power supply temporary stop detection unit 9 detect the presence / absence of current supply from the commercial power supply, respectively, and determine the period during which the current supply continues and the period during which the current supply continues to stop. It is measured and output to the microcomputer 6.
The microcomputer 6 is operated by the power of the control circuit power supply 11. The microcomputer 6 transfers the inverter circuit 3 to the drive circuit 5 based on the information stored in the storage unit 10 and information (signals) output from the power supply time detection unit 8 and the power supply pause detection unit 9. A signal for controlling the output of is output.

3 to 5 are flowcharts showing the operation of the lighting device.
FIG. 3 is a flowchart showing an outline of the operation of the lighting device. The lighting device repeatedly performs processing when the commercial power is turned on and processing when the commercial power is turned off.

First, an outline of the operation of the lighting device will be described.
When a power switch provided on a wall or the like is turned on / off, power is supplied / stopped from the commercial power source to the lighting device. The power supply time detection unit 8 and the power supply temporary stop detection unit 9 detect the state of power supply from the commercial power source by continuously performing the power switch on / off operation a predetermined number of times, and the microcomputer 6 detects the power supply state. A signal for identifying the power supply status is output. Based on the result, the microcomputer 6 changes the dimming level of the light source (here, the discharge lamp).
Note that “on / off operation of the power switch is continuously performed” means that the power switch on time and the power off time are switched within a predetermined time. That is, when the power switch is on or off for a predetermined time or longer, the power switch on / off operation is not continuously performed.
In the following description, when the ON / OFF operation of the power switch is continuously performed three times (first number), the dimming level of the discharge lamp is changed. Here, the counting method of the on / off operation starts from the on state, the power switch is turned off, and when it is further turned on, it is counted by one. That is, it starts from the ON state and is counted as OFF-ON (1 time) -OFF-ON (2 times) -OFF-ON (3 times). Further, when the power switch is switched from on to off within 10 seconds (first period) and from the off to on within 3 seconds (second period), the power switch is continuously turned on / off. It is assumed that an off operation has been performed.

Next, processing when the commercial power is turned on will be described with reference to FIG. FIG. 4 is a flowchart showing the operation of the lighting device when the commercial power is turned on.
(S1): When the power switch provided on the wall is turned on, power is supplied to the lighting device. The microcomputer 6 (lighting circuit control unit) reads the lighting mode SH from the storage unit 10. The lighting mode SH is information indicating the dimming level of the discharge lamp.
(S2): The lighting device supplies electric power to the discharge lamp by the operation described with reference to FIG. 2, preheats the filament of the discharge lamp, and then applies the starting voltage to light the discharge lamp. At this time, the microcomputer 6 controls the power supplied to the discharge lamp based on the read lighting mode SH.
(S3): The power supply time detection unit 8 (power supply measurement unit) initializes the value of the power supply time Ton (period in which the supply state in which power is supplied from the power supply continues).
(S4): The power supply time detection unit 8 (power supply measurement unit) starts counting the power supply time Ton.
(S5): The microcomputer 6 (counting unit) reads out the power supply temporary stop information F stored in the storage unit 10 (count storage unit) in the process when commercial power is turned off, which will be described later.
(S6): The microcomputer 6 (counter) determines whether or not the power supply suspension information F read in (S5) is a signal indicating a power supply suspension. When it determines with it being a signal which shows electric power supply temporary stop (it is Yes at S6), it progresses to (S7). On the other hand, if it is determined that the signal is not a signal indicating a temporary stop of power supply (No in S6), the process proceeds to (S15).
(S7): The microcomputer 6 (counter) adds 1 count to the power supply temporary stop detection count Foff.
(S8): The power supply time detection unit 8 and the power supply temporary stop detection unit 9 determine whether there is power supply from a commercial power source. When it is determined that there is power supply from the commercial power supply (Yes in S8), the power supply time detection unit 8 proceeds to (S9). On the other hand, when it is determined that there is no power supply from the commercial power supply (No in S8), the power supply temporary stop detection unit 9 proceeds to (S17).
(S9): The power supply time detection unit 8 (power supply measurement unit) continues to count the power supply time Ton.
(S10): The power supply time detection unit 8 (period determination unit) determines whether or not the power supply time Ton time is 10 seconds (first period) or more. Although the power supply time Ton time determined in (S10) is 10 seconds or longer, the power supply time Ton time may be arbitrarily set, for example, 15 seconds or longer. When it is determined that the power supply time is 10 seconds or longer (Yes in S10), the power supply time detection unit 8 (period determination unit) proceeds to (S11). On the other hand, when it is determined that the power supply time Ton is less than 10 seconds (No in S10), the power supply time detection unit 8 (period determination unit) returns to (S8) to continue counting the power supply time Ton. .
(S11): The microcomputer 6 (counter) determines whether or not the power supply temporary stop detection frequency Foff is 3 times (first frequency). In addition, although the power supply pause detection number of times Foff determined in (S11) is three, the power supply pause detection number of times Foff may be two or more than three. When it is determined that the power supply pause detection count Foff is 3 (Yes in S11), the microcomputer 6 (counter) proceeds to (S12). On the other hand, if it is determined that the power supply pause detection count Foff is not 3 (No in S11), the microcomputer 6 (counter) proceeds to (S15).
(S12): The microcomputer 6 (lighting circuit control unit) sequentially advances the lighting mode SH. As will be described in detail later, the forward feed processing is processing for switching the light control level to the next brighter or darker level. For example, when the microcomputer 6 (lighting circuit control unit) is 100% lit, the microcomputer 6 performs a process of switching the lighting mode SH to 70% lit.
(S13): The microcomputer 6 (counter) sets the power supply temporary stop detection frequency Foff to zero. That is, the power supply temporary stop detection frequency Foff is reset.
(S14): The microcomputer 6 (lighting circuit control unit) starts the discharge lamp lighting control in the lighting mode switched by performing the forward feed process in (S12). That is, the dimming level of the discharge lamp is changed.
(S15): The microcomputer 6 (counter) sets the power supply temporary stop detection frequency Foff to zero. That is, the power supply temporary stop detection frequency Foff is reset.
(S16): The microcomputer 6 (lighting circuit control unit) continues the lighting mode SH in which the discharge lamp is lit at this time. That is, the microcomputer 6 (lighting circuit control unit) maintains lighting at 100% without changing the lighting mode SH when it is lighted 100%.
(S17): The power supply temporary stop detection unit 9 detects commercial power OFF.
(S18): The lighting device shifts to a process when the commercial power is turned off.

Based on FIG. 5, the process at the time of commercial power-off is demonstrated. FIG. 5 is a flowchart showing the operation of the lighting device when the commercial power is off.
When the commercial power source is turned off, the power source is supplied to the microcomputer 6 or the like for a certain period of time by the residual charge of the electric field capacitor charged in the control circuit power source 11 when the commercial power source is on. That is, even when the commercial power supply is turned off, the functions of the microcomputer 6 and the like can operate for a certain period of time.
(S21): When the commercial power supply is turned off, the power supply pause detection unit 9 (power supply measurement unit) initializes the power supply pause time Toff (a period during which a stop state in which no power is supplied from the power supply continues). To do.
(S22): The power supply pause detection unit 9 (power supply measurement unit) starts measuring the power supply pause time Toff.
(S23): The power supply pause detection unit 9 (power supply measurement unit) continues to count the power supply pause time Toff.
(S24): The power supply pause detection unit 9 (period determination unit) determines whether or not the power supply pause time Toff exceeds 3 seconds (second period). Although the power supply pause time Toff determined in (S24) exceeds 3 seconds, the power supply pause time Toff may be arbitrarily set, for example, exceeding 5 seconds. When it is determined that the power supply pause time Toff does not exceed 3 seconds (No in S24), the power supply pause detection unit 9 (period determination unit) proceeds to (S25). On the other hand, when it is determined that the power supply pause time Toff exceeds 3 seconds (Yes in S24), the power supply pause detection unit 9 (period determination unit) proceeds to (S29).
(S25): The power supply time detection unit 8 (power supply measurement unit) and the power supply temporary stop detection unit 9 (power supply measurement unit) determine whether or not there is power supply from a commercial power supply. If it is determined that there is power supply from the commercial power supply (Yes in S25), the power supply time detection unit 8 (power supply measurement unit) proceeds to (S26). On the other hand, when it is determined that there is no power supply from the commercial power supply (No in S25), the power supply time detection unit 8 (power supply measurement unit) continues to count the power supply temporary stop time Toff, and returns to (S23). .
(S26): The power supply time detection unit 8 (power supply measurement unit) detects that the commercial power supply is on.
(S27): The microcomputer 6 (counter) determines that the power supply temporary stop has been detected. And the memory | storage part 10 (count memory | storage part) memorize | stores that there is a power supply temporary stop in power supply temporary stop detection information.
(S28): The lighting device shifts to a process when the commercial power is turned on.
(S29): The microcomputer 6 (counter) identifies that no power supply temporary stop has been detected. And the memory | storage part 10 (count memory | storage part) memorize | stores no power supply temporary stop in electric power supply temporary stop detection information.

In other words, when the above processing is summarized, when the power switch is turned off and power is not supplied to the lighting device, the power supply pause detection unit 9 (power measurement unit) measures the time during which the power supply is stopped. To do. When the time measured is equal to or shorter than a predetermined time (3 seconds in the above), a flag indicating that the power supply has been temporarily stopped is stored in the storage unit 10 (count storage unit). At this time, the microcomputer 6 and the power supply pause detection unit 9 are operated by a secondary battery such as a residual charge of the electric field capacitor or a battery.
When the power switch is turned on again, the microcomputer 6 determines whether or not the power supply has been temporarily stopped based on the flag stored in the storage unit 10 (count storage unit). If the power supply is temporarily stopped, 1 is added to the count. And the electric power supply time detection part 8 (power supply measurement part) time-measures the period when electric power is supplied. If the measured time exceeds a predetermined time (10 seconds in the above), the count is initialized.
Further, the operation is repeated in which the power switch is turned off within a predetermined time (10 seconds in the above) and the power switch is turned on within a predetermined time (3 seconds in the above). When it is determined that the supply has been temporarily stopped a predetermined number of times (in the above, 3 times) continuously, and when the power supply time has elapsed for a predetermined time (in the above, 10 seconds), the microcomputer 6 (lighting circuit control unit) Then, the setting information of the lighting state of the new discharge lamp is acquired from the storage unit 10 (forward feeding process). And the memory | storage part 10 (light control level memory | storage part) memorize | stores the acquired setting information as present setting information. Further, the microcomputer 6 (lighting circuit control unit) outputs a signal for changing the output power of the inverter circuit 3 to the drive circuit 5 so as to change the brightness of the discharge lamp.

As described above, the user can arbitrarily set the lighting state (dimming level) of the discharge lamp according to the commercial power on / off operation.
Also, since the lighting state of the discharge lamp is changed when the commercial power source is turned on / off a predetermined number of times (multiple times), the lighting state of the discharge lamp is inadvertently changed due to an instantaneous power failure of the commercial power source. There is no fear.
In particular, in an office building where a plurality of lighting fixtures are connected to one power supply circuit or other large-capacity electrical facilities are installed, there is a possibility that an instantaneous power failure or a power sag of a commercial power supply may occur. However, even in such a case, there is no risk of inadvertently changing the lighting state of the discharge lamp.
Moreover, since the lighting state of the discharge lamp can be changed by turning on / off the power switch, the brightness desired by the user can be set without changing the lighting fixture. In addition, frequent work such as switching of a switch such as a DIP switch of a lighting device built in the lighting fixture is not necessary. A DIP switch is a switch installed on a substrate.

Next, the forward feed process will be described. The forward feed process is a process for switching the dimming level to the next brighter or darker level as described above.
The storage unit 10 (setting value storage unit) stores a plurality of values (setting values for determining the output of the inverter circuit 3) that can be taken as the dimming level. The storage unit 10 (setting value storage unit) stores, for example, three setting values of output 100%, output 70%, and output 50%. In the forward feed process, the setting values stored in the storage unit 10 (setting value storage unit) are sequentially changed to one level brighter or darker. That is, in the forward feed process, the level is changed to a level that is one step brighter or darker than the currently set dimming level stored in the storage unit 10 (the dimming level storage unit).
As shown in FIG. 6A, the dimming level is changed step by step in the order of output 50% -output 70% -output 100% in which the setting values stored in the storage unit 10 (setting value storage unit) become brighter. To do. Next to the maximum output of 100%, the minimum output is set to 50%. Alternatively, as shown in FIG. 6B, the dimming levels are set one by one in the order of output 100%, output 70%, and output 50%, which are darkened from the set values stored in the storage unit 10 (set value storage unit). change.

In the above description, the forward feed process is performed after the power supply time Ton has passed 10 seconds (Ton ≧ 10 seconds) and (S10), and the power supply pause detection count Foff is 3 times (Foff = 3 times) and after (S11).
However, if it is determined that the power supply pause detection count Foff is 3 times (Foff = 3 times) before the power supply time Ton has elapsed 10 seconds, the dimming level is temporarily changed and the discharge lamp is turned on. It may be lit at the dimming level after the change. Then, after the power supply time Ton has passed 10 seconds, the change of the dimming level may be confirmed and the discharge lamp may be lit continuously at the dimming level after the change. On the other hand, if the power switch is turned on / off before the power supply time Ton has passed 10 seconds after the dimming level is tentatively changed, the power supply pause detection count Foff is 3 times. Therefore, the discharge lamp may be turned on by returning the dimming level to the dimming level before the change.
That is, for example, after (S5), the same process as (S11) (a process for determining whether or not the power supply pause detection count Foff is 3 times (Foff = 3)) is performed to temporarily stop the power supply. If the number of detection times Foff is 3, the dimming level may be temporarily changed so that the discharge lamp is lit at the changed dimming level. And it is good also as a process which fixes the light control level which changed (S12) temporarily.
As described above, the brightness of the discharge lamp when the dimming level is changed can be confirmed before the change is confirmed. And the change of the light control level can also be canceled.

  Moreover, although the said description demonstrated the case where a light source was a discharge lamp, light sources, such as an incandescent lamp and white LED, may be sufficient.

  In the above description, it is assumed that the dimming level is changed three times in succession of turning on / off the power switch. As the number of times the power switch is turned on / off is increased, the probability of malfunction caused by power fluctuations such as instantaneous power failure and sag decreases. However, considering the operability, the number of on / off times is preferably about 2-3. Further, the power switch on / off time may be any number of seconds, but in consideration of operability, it is preferably within 3 seconds.

Embodiment 2. FIG.
The lighting device according to Embodiment 1 switches the set value by measuring the power supply time and the power pause time. The lighting device according to this embodiment does not measure the power temporary stop time but measures the power supply time and switches the set value.
In this embodiment, the same parts as those in the first embodiment are denoted by the same reference numerals and description thereof is omitted.

FIG. 7 is an internal configuration diagram of the lighting device according to this embodiment.
The lighting device illustrated in FIG. 7 does not include the power supply temporary stop detection unit 9 as compared with the lighting device according to the first embodiment illustrated in FIG. This is because the lighting device according to this embodiment does not measure the power suspension time.

8 and 9 are flowcharts showing the operation of the lighting device.
Similarly to the lighting device according to the first embodiment, the lighting device according to this embodiment repeatedly performs the processing when the commercial power is turned on and the processing when the commercial power is turned off.

Based on FIG. 8, the process when the commercial power is turned on will be described. FIG. 8 is a flowchart showing the operation of the lighting device when the commercial power is turned on.
(S31): When the power switch provided on the wall is turned on, power is supplied to the lighting device. The microcomputer 6 (lighting circuit control unit) reads the lighting mode SH from the storage unit 10.
(S32): The power supply time detection unit 8 (power supply measurement unit) reads the power supply time Ton from the storage unit 10 (count storage unit).
(S33): The lighting device supplies power to the discharge lamp by the above-described operation, preheats the filament of the discharge lamp, and then applies a starting voltage to light the discharge lamp. At this time, the microcomputer 6 controls the power supplied to the discharge lamp based on the read lighting mode SH.
(S34): The power supply time detection unit 8 (period determination unit) determines whether or not the power supply time Ton read in (S32) is longer than 0 seconds and 3 seconds or less. When it is determined that the power supply time Ton is longer than 0 seconds and 3 seconds or less (0 seconds <Ton ≦ 3 seconds) (Yes in S34), the power supply time detection unit 8 (period determination unit) proceeds to (S35). move on. On the other hand, when it is determined that the power supply time Ton is 0 seconds or not less than 3 seconds (Ton = 0 or Ton> 3) (No in S34), the power supply time detection unit 8 (period determination unit) is (S36). Go to).
(S35): The microcomputer 6 (counter) adds 1 count to the power supply time detection frequency Fon.
(S36): The power supply time detection unit 8 (power supply measurement unit) initializes the power supply time Ton.
(S37): The power supply time detection unit 8 (power supply measurement unit) starts counting the power supply time Ton.
(S38): The power supply time detection unit 8 determines whether or not there is power supply from a commercial power source. When it is determined that there is power supply (Yes in S38), the power supply time detection unit 8 proceeds to (S39). On the other hand, when it determines with there being no power supply (it is No at S38), the power supply time detection part 8 progresses to (S46).
(S39): The power supply time detection unit 8 (power supply measurement unit) continues to count the power supply time Ton.
(S40): The power supply time detection unit 8 (period determination unit) determines whether or not the power supply time Ton is 10 seconds or longer. When it is determined that the power supply time Ton is 10 seconds or longer (Yes in S40), the power supply time detection unit 8 (period determination unit) proceeds to (S41). On the other hand, when it determines with the electric power supply time Ton not being 10 seconds (1st period) or more (it is No at S40), the electric power supply time detection part 8 (period determination part) returns to (S38).
(S41): The microcomputer 6 (counter) determines whether the short-time power supply detection count Kon is 3 times (first count). If it is determined that the short-time power supply detection count Kon is 3 (Yes in S41), the microcomputer 6 (counter) proceeds to (S42). On the other hand, when it is determined that the short-time power supply detection count Kon is not 3 (No in S41), the microcomputer 6 (counter) proceeds to (S48).
(S42): The microcomputer 6 (lighting circuit control unit) sequentially advances the state in which the discharge lamp is lit (lighting mode). The forward feed process is the same as the process described in the first embodiment.
(S43): The power supply time detection unit 8 (power supply measurement unit) resets the power supply time Ton.
(S44): The microcomputer 6 (counter) resets the short-time power supply detection count Kon.
(S45): The microcomputer 6 (lighting circuit control unit) lights the discharge lamp in a state where the forward feeding process is performed in (S42).
(S46): The power supply time detection unit 8 (power supply measurement unit) detects commercial power OFF.
(S47): The lighting device shifts to processing when the commercial power is turned off (step 47).
(S48): The power supply time detection unit 8 (power supply measurement unit) resets the power supply time Ton.
(S49): The microcomputer 6 (counter) resets the short-time power supply detection count Kon.
(S50): The microcomputer 6 (lighting circuit control unit) maintains the lighting without changing the lighting state of the discharge lamp.

Based on FIG. 9, the process at the time of commercial power-off is demonstrated. FIG. 9 is a flowchart showing the operation of the lighting device when the commercial power is off.
(S61): The microcomputer 6 (power supply measuring unit) stops counting the power supply time Ton.
(S62): The storage unit 10 (count storage unit) stores the count of the power supply time Ton.

That is, to summarize the above processing, when the power switch is turned on and power supply from the commercial power supply is started, the power supply time detection unit 8 (power supply measurement unit) starts measuring the power supply time. The power supply time detection unit 8 (power supply measurement unit) measures the power supply time until the power supply from the commercial power supply is stopped by turning off the power switch. The memory | storage part 10 (count memory | storage part) memorize | stores the electric power supply time at this time (count of electric power supply time Ton).
When the power is turned on again, the power supply time detection unit 8 (power supply measurement unit) reads the power supply time stored in the storage unit 10 (count storage unit). The power supply time detection unit 8 (period determination unit) determines that it is a setting change signal when it is shorter than the predetermined time. In this case, the power supply time detection unit 8 (power supply measurement unit) resets the read power supply time and newly measures the power supply time.
That is, the lighting device repeatedly measures the power supply time, stores the power supply time, and determines whether the setting change signal is based on the stored power supply time by turning on / off the power switch.
The microcomputer 6 (lighting circuit control unit) changes the dimming level when the setting change signal reaches a predetermined number of times (for example, three times) and the power supply time Ton exceeds a predetermined time (for example, 10 seconds). Then, the microcomputer 6 (lighting circuit control unit) controls the output of the inverter circuit 3 so that the brightness is based on the set value.

  As described above, the commercial power supply changes the lighting state of the discharge lamp based on the supply time regardless of the stop time. Therefore, when the supply of commercial power is stopped, a control circuit such as the microcomputer 6 may be operated until the storage unit 10 (count storage unit) stores information. The capacity can be reduced.

  As in the first embodiment, if the power supply pause detection count Foff is determined to be 3 times (Foff = 3 times) before the power supply time Ton has elapsed 10 seconds, the dimming level is provisionally set. And the discharge lamp may be lit at the dimming level after the change. Then, after the power supply time Ton has passed 10 seconds, the change of the dimming level may be confirmed and the discharge lamp may be lit continuously at the dimming level after the change. On the other hand, if the power switch is turned on / off before the power supply time Ton has passed 10 seconds after the dimming level is temporarily changed, the power supply pause detection count Foff is 3 times. Therefore, the discharge lamp may be turned on by returning the dimming level to the dimming level before the change.

Embodiment 3 FIG.
In this embodiment, another configuration for detecting the presence / absence of a commercial power source and measuring a commercial power supply stop period in the first or second embodiment will be described.
In the present embodiment, the same parts as those in the first embodiment are denoted by the same reference numerals and description thereof is omitted.

FIG. 10 is an internal configuration diagram of a lighting device showing another configuration for detecting the presence or absence of a commercial power supply in the first or second embodiment.
The lighting device shown in FIG. 10 does not include the power supply time detection unit 8 and the power supply pause detection unit 9 as compared with the lighting device according to Embodiment 1 shown in FIG.
In FIG. 2, the power supply time detection unit 8 and the power supply temporary stop detection unit 9 are provided to detect the presence or absence of the commercial power source. However, in the lighting device shown in FIG. 10, the power supply time and the power supply temporary stop time are determined by the circuit unit 7 and the microcomputer 6 for detecting the presence or absence of the commercial power supply.

FIG. 11 and FIG. 12 are diagrams showing another configuration for measuring the commercial power supply stop period in the first embodiment or the second embodiment.
The lighting device shown in FIGS. 11 and 12 includes a charge charging unit 12 as compared with the lighting device according to the first embodiment shown in FIG. Also, the configuration of the control circuit power supply 11 is clearly shown.
The charge charger 12 charges the commercial power source during the supply period and discharges the charge during the supply stop period. The microcomputer 6 (power supply measuring unit) determines that the supply stop state is within a predetermined set time based on the remaining amount of charge charged in the charge charging unit 12 when power supply is started again.
In the first embodiment, the measurement of the supply stop period is performed in a state where no power is supplied from the power source to the microcomputer 6. However, with the configuration shown in FIGS. 11 and 12, the supply stop period can be measured in a state where power is supplied from the power source to the microcomputer 6.
In order to determine the supply stop period based on the remaining amount of charge charged in the charge charging unit 12, the charge charging unit 12 is always charged to a predetermined value (for example, charging is full ( It must be full))). Therefore, in the first and second embodiments, the power supply time is less than a predetermined time in order to determine whether the power switch is continuously turned on and off (S10 in FIG. 4). However, in the case of the configuration shown in FIGS. 11 and 12, the power supply time may be equal to or longer than the predetermined time and may be shorter than the predetermined time. In other words, if the supply stop period is measured on condition that the power supply time is equal to or longer than a predetermined time, the charge charging unit 12 is always charged to a predetermined value when the power is turned off. It can be ensured that Further, by connecting the resistor R5 in parallel with the capacitor C6, when the supply stop period exceeds a predetermined period, the remaining amount of charge in the capacitor C6 can be discharged to a value less than the predetermined value.
Similarly to the charge charging unit 12, the commercial power supply charges the control circuit power supply 11 during the supply period. The control circuit power supply 11 cannot supply power to the microcomputer 6 or the like when the power is off. Thereby, a capacitor having a small capacitance can be selected.

FIG. 13 is an operation chart diagram of the configuration shown in FIGS. 11 and 12.
When the power supply is turned on (1), the capacitor C6 begins to be charged, and the voltage of the capacitor C6 gradually increases. When a predetermined time elapses, the voltage of the capacitor C6 becomes the maximum value. Next, when the power is turned off (2), the charge charged in the capacitor C6 is consumed by the resistor R5 and gradually decreases. When the power is turned on again (3), the capacitor C6 starts to be charged again, the voltage of the capacitor C6 gradually increases, and when a predetermined time elapses, the voltage of the capacitor C6 reaches the maximum value.
Here, the supply stop period can be measured by measuring the voltage of the capacitor C6 (residual amount of charged charge) when the power is turned on again in (3).

  FIG. 14 is a diagram illustrating a configuration in which the charge charging unit 12 is excluded from the configuration of the lighting device of FIGS. 11 and 12. 11 and 12 are configurations corresponding to the processing described in the first embodiment, while FIG. 14 is a configuration corresponding to the processing described in the second embodiment.

FIG. 15 is an internal configuration diagram of the lighting device in which the charge charging unit 12 of the lighting device shown in FIGS. 11 and 12 is controlled by the microcomputer 6. The microcomputer 6 includes a charge control unit that controls the charge charging unit 12.
Based on FIG. 16, the measurement operation | movement of the supply stop period of the lighting device shown in FIG. 15 is demonstrated. FIG. 16 is an operation chart of the lighting device shown in FIG.
(A) When the commercial power is turned on, power is supplied to the microcomputer 6 (1).
(B) The microcomputer 6 (charge control unit) outputs charge (discharge signal) from the discharge signal output terminal P1 connected to the transistor Q4 (switch) (2). Then, the transistor Q4 is turned on by the discharge signal, and the charge charged in the capacitor C7 (first capacitor) moves to the capacitor C8 (second capacitor). Here, the microcomputer 6 (power supply measuring unit) detects the charge moving from the capacitor C7 to the capacitor C8 from the charge charge detection terminal P2 connected between the capacitors C7 and C8, whereby the voltage of the capacitor C7 is detected. (Remaining amount of charged charge) is measured.
(C) When the charge charged in the capacitor C7 moves to the capacitor C8, the microcomputer 6 (charge control unit) stops outputting the discharge signal from the discharge signal output terminal P1, and the charge output terminal connected to the capacitor C7 Charge is output from P3 (3). Then, the capacitor C7 is charged. Until the commercial power supply is turned off, the electric charge is continuously output from the charging output terminal P3, and the capacitor C7 is continuously charged.
(D) When the commercial power supply is turned off, power is not supplied to the microcomputer 6 (4). Then, the output of charge from the charge output terminal P3 is stopped, and the charging of the capacitor C7 is stopped. Then, the electric charge of the capacitor C7 is gradually consumed by the resistor R6.
(F) When the commercial power is turned on again, the process returns to (a) and the same operation as described above is performed. That is, electric power is supplied to the microcomputer 6 (5), electric charge (discharge signal) is output from the discharge signal output terminal P1, and the voltage of the capacitor C7 is measured (6).
Then, the microcomputer 6 (period determination unit) determines whether or not the supply stop period is a short time based on the voltage of the capacitor C7 measured in (b) of the above operation.

FIG. 17 is an internal configuration diagram of the lighting device in which the configuration of the charge charging unit 12 of the lighting device shown in FIG. 15 is changed. In the configuration of the charge charger 12 shown in FIG. 17, instead of the charge charge detection terminal P2 and the charge output terminal P3 of the charge charger 12 shown in FIG. 15, the charge charge detection terminal P2 of the charge charger 12 shown in FIG. And a charge output detection / charge output terminal P4 for performing an operation with the charge output terminal P3.
Based on FIG. 18, the measurement operation of the supply stop period of the lighting device shown in FIG. 17 will be described. FIG. 18 is an operation chart of the lighting device shown in FIG.
(A ′) When the commercial power supply is turned on, power is supplied to the microcomputer 6 (1).
(B ′) The microcomputer 6 (charge control unit) outputs a charge (discharge signal) from the discharge signal output terminal P1 (2). Then, the transistor Q4 is turned on by the discharge signal, and the charge charged in the capacitor C7 (first capacitor) moves to the capacitor C8 (second capacitor). Here, the microcomputer 6 (power supply measuring unit) detects the charge moving from the capacitor C7 to the capacitor C8 from the charge charge detection / charge output terminal P4 (input terminal to the microcomputer 6), whereby the voltage of the capacitor C7 is detected. (Remaining amount of charged charge) is measured.
(C ′) When the charge charged in the capacitor C7 moves to the capacitor C8, the microcomputer 6 (charge control unit) stops outputting the discharge signal from the discharge signal output terminal P1, and detects the charge charge detection / charge output terminal P4. Charge is output from (output terminal from the microcomputer 6) (3). Then, the capacitor C7 is charged. Until the commercial power is turned off, the charge is continuously output from the charge charge detection / charge output terminal P4, and the capacitor C7 is continuously charged.
(D ′) When the commercial power supply is turned off, power is not supplied to the microcomputer 6 (4). Then, the charge output from the charge charge detection / charge output terminal P4 is stopped, and the charging of the capacitor C7 is stopped. Then, the electric charge of the capacitor C7 is gradually consumed by the resistor R6.
(F ′) When the commercial power is turned on again, the process returns to (a ′), and the same operation as described above is performed. That is, electric power is supplied to the microcomputer 6 (5), electric charge (discharge signal) is output from the discharge signal output terminal P1, and the voltage of the capacitor C7 is measured (6).
Then, the microcomputer 6 (period determination unit) determines whether or not the supply stop period is a short time based on the voltage of the capacitor C7 measured in (b ′) of the above operation.

In the configuration shown in FIG. 17, the capacitor C7 is charged in (c ′) and the capacitor C8 is also charged. However, the charge charged in the capacitor C8 is consumed by the resistor R7 in a shorter time than the charge charged in the capacitor C7 is consumed by the resistor R6. That is, the charge charged in the capacitor C8 is discharged more rapidly than the charge charged in the capacitor C7. As a result, it can be considered that no charge remains in the capacitor C8 when the power is turned on.
Similarly, in the configuration shown in FIG. 15, when the power is turned on, it can be considered that no charge remains in the capacitor C8.

FIG. 19 is a diagram showing a configuration in which the microcomputer 6 having the configuration shown in FIG. In FIG. 15, the microcomputer 6 is configured to receive power supply directly from a commercial power source. However, as shown in FIG. 19, the microcomputer 6 may not be directly supplied with power from a commercial power supply, but may be supplied with power from another part (the load circuit 4 in FIG. 19).
In addition to the configuration shown in FIG. 15, in other configurations, the microcomputer 6 may not be directly supplied with power from a commercial power supply, but may be supplied with power from other portions.

20 is an internal configuration diagram of a lighting device in which a commercial power supply presence / absence detection circuit is added to the lighting device shown in FIG.
The commercial power supply presence / absence detection circuit is a circuit that determines whether power is supplied from a commercial power supply. In the lighting device shown in FIG. 15, when the supply of power from the commercial power supply is stopped, the supply of power to the microcomputer 6 is stopped, so that the output of charges from the charge output terminal P3 is also stopped. However, a commercial power supply presence / absence detection circuit may be provided to detect that the supply of power from the commercial power supply has stopped, and to stop the output of charge from the charge output terminal P3. By providing the commercial power supply presence / absence detection circuit, the supply stop period can be measured more strictly.
Similarly, even if a commercial power supply presence / absence detection circuit is provided in the configuration shown in FIG. 17 to detect that the supply of power from the commercial power supply has stopped, the output of charge from the charge charge detection / charge output terminal P4 is stopped. Good.

  The lighting device shown in FIGS. 15 and 17 is configured to control the charge charging unit 12 by the charge control unit of the microcomputer 6. However, the charge charging unit 12 may be controlled by a circuit having a function similar to that of the charge control unit.

Embodiment 4 FIG.
In this embodiment, a lighting device will be described in which processing for returning the lighting state to the initial state (initial value) is further added to the processing described in the first and second embodiments.
That is, when a predetermined operation is performed, a process for returning the lighting state to a predetermined initial state is added.

First, a lighting device in which processing for returning the lighting state to the initial state is added to the processing described in the first embodiment will be described. FIG. 21 is a flowchart showing the operation of the lighting device when the commercial power is turned on. The operation of the lighting device when the commercial power is off is the same as the processing described in the first embodiment.
The internal configuration of the lighting device described here is the same as that of the lighting device according to the first embodiment.

Here, the operation of the lighting device when the commercial power supply shown in FIG. 21 is different from the operation of the lighting device when the commercial power supply described in Embodiment 1 is different will be described.
(S1) to (S10) are the same as in the first embodiment.
(S11): The microcomputer 6 (counting unit) determines whether the power supply pause detection count Foff is 3 times (first count), and the power supply pause detection count Foff is 4 times (second count). Number of times). When it is determined that the power supply pause detection count Foff is 3 (Foff = 3 times in S11), the microcomputer 6 (counter) proceeds to (S12). If it is determined that the power supply pause detection count Foff is 4 times (Foff = 4 times in S11), the microcomputer 6 (counter) proceeds to (S19). When it is determined that the power supply pause detection count Foff is neither 3 nor 4 (Foff ≠ 3 times and 4 times in S11), the microcomputer 6 (counter) proceeds to (S15).
(S12) to (S18) are the same as in the first embodiment.
(S19): The microcomputer 6 (lighting circuit control unit) performs an initial lighting process in the lighting mode SH. The initial lighting process is a process of switching the dimming level of the discharge lamp to the initial value of the dimming level of the discharge lamp previously stored in the storage unit 10 (setting value storage unit).
In (S14), the microcomputer 6 (lighting circuit control unit) starts lighting control of the discharge lamp in the switched lighting mode.

Next, a lighting device will be described in which processing for returning the lighting state to the initial state is added to the processing described in the second embodiment. FIG. 22 is a flowchart showing the operation of the lighting device when the commercial power is turned on. The operation of the lighting device when the commercial power is off is the same as the processing described in the second embodiment.
The internal configuration of the lighting device described here is the same as that of the lighting device according to the second embodiment.

Here, the operation of the lighting device when the commercial power source is turned on shown in FIG. 22 will be described only with respect to the difference from the operation of the lighting device when the commercial power source is turned on described in the second embodiment.
(S31) to (S40) are the same as in the first embodiment.
(S41): The microcomputer 6 (counter) determines whether or not the short-time power supply detection count Kon is 3 times (first count), and the short-time power supply detection count Kon is 4 times (second count). The number of times). If it is determined that the number of short-time power supply detections Kon is 3 (Kon = 3 in S41), the microcomputer 6 (counter) proceeds to (S42). If it is determined that the short-time power supply detection count Kon is 4 (Kon = 4 times in S41), the microcomputer 6 (counter) proceeds to (S51). If it is determined that the short-time power supply detection frequency Kon is not 3 or 4 (Kon ≠ 3 times or 4 times in S41), the microcomputer 6 (counter) proceeds to (S48).
(S42) to (S50) are the same as in the second embodiment.
(S51): The microcomputer 6 (lighting circuit control unit) performs an initial lighting process for the lighting mode SH. The initial lighting process is a process of switching the dimming level of the discharge lamp to the initial value of the dimming level of the discharge lamp previously stored in the storage unit 10 (setting value storage unit).
In (S45), the microcomputer 6 (lighting circuit control unit) starts lighting control of the discharge lamp in the switched lighting mode.

  As described above, since the light control level can be returned to the initial value without repeating the sequential feeding process many times, it does not take time to return the light control level to the initial value.

  In the above description, it is determined whether or not the power supply pause detection count Foff is 3 times or the power supply pause detection count Foff is 4 times. However, this count may be set arbitrarily. Similarly, the short-time power supply detection count Kon may be set arbitrarily.

Embodiment 5 FIG.
In this embodiment, the lighting control when the lighting mode is switched between the forward feed process and the initial lighting process will be described.

FIG. 23 and FIG. 24 are diagrams showing output changes when the forward feed processing is performed.
When the forward process is performed and the dimming level is changed, the dimming level before the change is not directly changed to the dimming level after the change, but, for example, as shown in FIG. The dimming level may be lowered (darkened) step by step to the output. That is, it is possible to output at the maximum output for 2 seconds, output at the intermediate output between the maximum output and the changed dimming level for 2 seconds, and then output at the changed dimming level.
Further, as shown in FIG. 24, the dimming level may be increased (brightened) stepwise from the lowest output to the changed output.
Furthermore, in the above example, the dimming level is changed step by step from the highest output or the lowest output, but the dimming level may be changed step by step from the dimming level that is not the highest output and the lowest output.
Furthermore, a plurality of intermediate outputs may be provided.

  As described above, it is possible to visually confirm that the dimming level has been changed by changing the dimming level step by step when the forward feed processing is performed. In addition, it is possible to easily grasp the brightness of the dimming level after the change.

FIG. 25 and FIG. 26 are diagrams showing another example of the output change when the forward feed process is performed.
As shown in FIG. 25, when the brightness difference between the dimming level before the change (the maximum output level in FIG. 25) and the dimming level after the change is α, the dimming level before the change and the brightness Change the dimming level of the light source multiple times alternately between the dimming level with a difference of at least 2α and the dimming level before the change, and then change the dimming level of the light source to the dimming level after the change You may do that. In other words, after dimming the brightness of the light source multiple times at two dimming levels that are more than twice the difference in brightness before and after the change, dimming after changing the dimming level of the light source It may be changed to a level.
Furthermore, as shown in FIG. 26, when the dimming level of the light source is changed only to a dimming level at least at a predetermined ratio (for example, 50% or more) of the maximum output, the predetermined dimming level (for example, the highest dimming level) Output level) and the output of the predetermined dimming level below the predetermined ratio (for example, 50% or lower) alternately, after changing the dimming level of the light source a plurality of times, and then changing the dimming level of the light source It is good.

  As described above, when the progressive process is performed, the dimming level is clearly brighter (or darker dimming level) than the dimming level after the change, and the dimming level before the change alternately. By turning it on, it can be visually confirmed that the dimming level has been changed. In particular, it is possible to easily confirm that the dimming level has been changed by changing the dimming level darker than the darkest dimming level and the dimming level before the change several times alternately.

27 and 28 are diagrams illustrating the operation of the buzzer circuit 27 when the forward feed process is performed. FIG. 29 is an internal configuration diagram of the lighting device including the buzzer circuit 27.
The light control level of the light source is set to a light control level n levels brighter or n levels darker than the predetermined light control level (for example, the maximum output level) stored in the storage unit 10 (setting value storage unit). When changing, a specific sound corresponding to the dimming level after the change may be played. The specific sound is, for example, that a predetermined sound is played n times. That is, as shown in FIG. 27, when changing the dimming level of the light source from the highest output level to one step darker dimming level, the buzzer circuit 27 is turned on once, and as shown in FIG. If the dimming level of the light source is changed to a darker dimming level, the buzzer circuit 27 may be sounded twice.

  As described above, it is possible to audibly confirm that the dimming level has been changed by sounding a buzzer sound in accordance with the degree of change in the dimming level when the forward feed process is performed. In addition, it is possible to easily grasp the brightness of the dimming level after the change.

  As shown in FIG. 29, the buzzer circuit 27 is connected to the microcomputer 6, and when the microcomputer 6 issues a dimming level change instruction, the buzzer circuit 27 can also be controlled.

FIG. 30 is a diagram showing an output change when the initial lighting process is performed.
When the initial lighting process is performed and the dimming level is set to the initial value, the dimming level before the change is not directly changed to the dimming level of the initial value but, for example, as shown in FIG. It is also possible to change the dimming level of the discharge lamp to the initial dimming level after changing the dimming level by repeating a predetermined number of times alternately between the output and the minimum output. For example, the dimming level of the discharge lamp may be changed to the initial dimming level after the dimming level is changed alternately and repeatedly for the maximum output and the minimum output for 2 seconds.
Further, in the above example, the dimming level is changed by repeating a predetermined number of times alternately between the maximum output and the minimum output, but the dimming level brighter than the predetermined dimming level and darker than the predetermined dimming level. The light control level may be changed by repeating a predetermined number of times alternately with the light control level.

  As described above, it is possible to visually confirm that the dimming level has been changed to the initial value by repeatedly changing the dimming level when the initial lighting process is performed.

FIG. 31 is a diagram illustrating the operation of the buzzer circuit 27 when the initial lighting process is performed.
When the light control level is set to the initial value, a sound different from a predetermined sound that is generated when the light control level of the light source is changed may be sounded. Here, the different sound may be a sound that can be distinguished from a sound that is emitted when the light control level of the light source is changed, such as a sound having a different sound range, a sound having a different length, a sound having a different pattern, or the like. As shown in FIG. 31, for example, when the dimming level one level darker than the initial dimming level is changed to the initial dimming level, the buzzer sound generated when the dimming level of the light source is changed is changed. A long (for example, twice or more) buzzer sound may be generated. Notification by voice (for example, “returned to the initial value”) may be used.

  As described above, when the initial lighting process is performed, a buzzer sound different from the case where the dimming level is changed can be heard, so that it can be confirmed by hearing that the dimming level has been changed to the initial value.

Embodiment 6 FIG.
In the embodiment described above, the light control level is changed to the next brightest or darkest dimming level by the progressive feeding process. In this embodiment, a lighting device that can set an arbitrary brightness with a single change operation will be described.

First, a lighting device will be described in which the sequential process of the process described in the first embodiment is changed to a process that can set an arbitrary brightness by a single change operation. FIG. 32 is a flowchart showing the operation of the lighting device when the commercial power is turned on. The operation of the lighting device when the commercial power is off is the same as the processing described in the first embodiment.
The internal configuration of the lighting device described here is the same as that of the lighting device according to the first embodiment.

Here, the operation of the lighting device when the commercial power source is turned on shown in FIG. 32 will be described only with respect to the difference from the operation of the lighting device when the commercial power source is turned on described in the first embodiment.
(S1) to (S11) and (S13) to (S18) are the same as in the first embodiment.
In (S12), an output setting process is executed.

FIG. 33 is a diagram showing a change in the dimming level of the discharge lamp in the output setting process.
As shown in FIG. 33, in the output setting process, the dimming level of the discharge lamp is changed stepwise so that the dimming level of the highest output is darkened from the dimming level of the highest output.
In the output setting process, when there is an input from the power switch, the change of the dimming level of the discharge lamp is stopped at that time to determine the dimming level. In addition, the process of changing the dimming level of the discharge lamp step by step so that it dims from the highest dimming level to the lowest dimming level is repeated a predetermined number of times. Do not change level.
In FIG. 33, the process of changing the dimming level of the discharge lamp in stages is repeated three times. The number of processing loops for changing the dimming level of the discharge lamp in stages may be repeated any number of times, but is preferably about three in consideration of operability. The discharge lamp is lit for 3 seconds at the dimming level at each stage. The lighting time for each output may be any number of seconds, but is preferably about 3 seconds in consideration of operability.
Note that the dimming level of the discharge lamp may be changed stepwise so that the dimming level from the lowest output to the highest output dimming level is increased. Moreover, you may change in steps from arbitrary 1st outputs to arbitrary 2nd outputs instead of the highest output and the lowest output.

  The output setting process will be described based on FIG. FIG. 34 is a flowchart showing the operation of the output setting process.

(S71): The microcomputer 6 (lighting circuit controller) sets the temporary lighting mode SH ′ to the maximum output.
(S72): The microcomputer 6 (lighting circuit control unit) lights the discharge lamp in the set temporary lighting mode SH ′.
(S73): The microcomputer 6 (lighting circuit control unit) determines whether or not there is a predetermined input. The predetermined input is, for example, an input from a power switch (for example, a power switch off operation). In addition, an input such as a button may be used. If it is determined that there is a predetermined input (Yes in S73), the microcomputer 6 (lighting circuit control unit) proceeds to (S80). On the other hand, when it is determined that there is no predetermined input (Yes in S73), the microcomputer 6 (lighting circuit control unit) proceeds to (S74).
(S74): The microcomputer 6 (lighting circuit controller) determines whether or not a predetermined time has elapsed since the discharge lamp was turned on in the set temporary lighting mode SH ′. For example, the microcomputer 6 (lighting circuit control unit) determines whether or not 3 seconds have elapsed since the discharge lamp was turned on in the set temporary lighting mode SH ′. If it is determined that the predetermined time has elapsed (Yes in S74), the microcomputer 6 (lighting circuit control unit) proceeds to (S75). On the other hand, when it is determined that the predetermined time has not elapsed (No in S74), the microcomputer 6 (lighting circuit control unit) returns to (S73).
(S75): The microcomputer 6 (lighting circuit control unit) determines whether or not the lighting mode SH is the minimum output. If it is determined that the lighting mode SH is the minimum output (Yes in S75), the microcomputer 6 (lighting circuit control unit) proceeds to (S76). On the other hand, when it determines with lighting mode SH not being the minimum output (it is No at S75), the microcomputer 6 (lighting circuit control part) progresses to (S78).
(S76): The microcomputer 6 (lighting circuit control unit) counts the number of loops C, which is the number of repetitions of the process of changing the dimming level of the discharge lamp in stages (C = C + 1).
(S77): The microcomputer 6 (lighting circuit control unit) determines whether or not the loop count C is greater than a predetermined count. If the loop count C is greater than the predetermined count (Yes in S77), the microcomputer 6 (lighting circuit control unit) does not change the dimming level and ends the process. On the other hand, if the loop count C is not greater than the predetermined count (No in S77), the microcomputer 6 (lighting circuit control unit) proceeds to (S79).
(S78): The microcomputer 6 (lighting circuit controller) sets the temporary lighting mode SH ′ to the next dark level.
(S79): The microcomputer 6 (lighting circuit controller) sets the temporary lighting mode SH ′ to the maximum output.
(S80): The microcomputer 6 (lighting circuit control unit) determines the lighting mode SH as the temporary lighting mode SH ′ at the time when there is an input. Here, when the predetermined input is an OFF input of the power switch, the storage unit 10 stores the determined lighting mode SH. Then, when the power switch is turned on again, the microcomputer 6 (lighting circuit control unit) reads the lighting mode from the storage unit 10 and lights the discharge lamp. The time until the power switch is turned on again may be limited to a predetermined time (for example, 3 seconds).

Next, a lighting device will be described in which the sequential processing of the processing described in the second embodiment is changed to processing that can set arbitrary brightness by a single change operation. FIG. 35 is a flowchart showing the operation of the lighting device when the commercial power is turned on. The operation of the lighting device when the commercial power is off is the same as the processing described in the second embodiment.
The internal configuration of the lighting device described here is the same as that of the lighting device according to the second embodiment.

Here, the operation of the lighting device when the commercial power source is turned on shown in FIG. 35 will be described only with respect to the difference from the operation of the lighting device when the commercial power source is turned on described in the second embodiment.
(S31) to (S41) and (S43) to (S50) are the same as in the second embodiment.
In (S42), an output setting process is executed. The output setting process is as described based on FIG.

  As described above, the dimming level is changed stepwise so as to darken from the highest output to the lowest output, and when there is a predetermined input, the change of the dimming level of the light source is stopped once. The desired dimming level can be set by the changing operation.

In the above description, in the output setting process, when there is an input from the power switch, the change of the dimming level of the discharge lamp is stopped at that time and the dimming level is determined. However, in general, it takes some time to input after visualizing the brightness. In other words, the input is not performed in anticipation of the next brightness, but the input is performed by looking at the result. For this reason, the input is not performed ahead of the actual state, and the input is performed later than the actual state. For this reason, the visually recognized brightness may be different from the set brightness. That is, the input may be delayed, and the brightness at the next level of the visually recognized brightness may be set. In addition, there is a possibility that different output settings may be made between the luminaires due to variations in component accuracy among the luminaires.
Therefore, as shown in FIG. 36, after changing the dimming level of the discharge lamp from the dimming level at one stage (first stage) to the dimming level at the next stage (second stage), a predetermined period of time is reached. If there is an input from the power switch within (t seconds), the dimming level of the discharge lamp may be changed to the first dimming level, and the change of the dimming level may be stopped. That is, when there is an input at time “x” in FIG. 36, the discharge lamp is changed to an intermediate output and is lit, but is changed to a higher output and set. That is, when an input is made in the period A in FIG. 36, the output is set to a high output. When an input is made in the period B, the output is set to an intermediate output. When an input is made in the period C, the output is set to a low output.
The above-mentioned t seconds is preferably about 0.2 seconds in consideration of variations in accuracy among lighting fixtures and the time required to recognize a change in light and act.

  Further, in order to further prevent the setting values from being different among the lighting fixtures, the power supply time detection unit 8 or the power supply temporary stop is used for the output change timing and the stay time in the output setting process as shown in FIG. The timing may be coincident with the timing of zero crossing of the commercial power sent from a predetermined circuit such as the detection unit 9 to the microcomputer 6. That is, when the output change timing and the stay time are determined by the timer of the microcomputer 6 of each circuit, variation occurs due to the deviation of the timer. However, by making it coincide with the zero cross timing of the commercial power supply, it is possible to eliminate variations in the output change timing between the appliances.

Embodiment 7 FIG.
In this embodiment, the setting value of the lighting mode will be described by taking Hf32 (model name: FHF32), which is a high-frequency dedicated discharge lamp that is widely used at present, as an example.

Hf32 is a double rating that guarantees operation with two set values. The rated values of Hf32 are 45W and 32W. That is, when Hf32 is used with two lights, the rated values are 90 W and 64 W. In the case where the lighting device is mounted on an instrument, the rated values when Hf32 is used with two lights are generally shown as 88 W and 64 W.
In addition, before the high-frequency lighting device became popular, many magnetic ballasts were popular. Even today, magnetic ballasts are widely used because of the price advantage. There are many FL40 / SS / 37 discharge lamp glow lamps that are lit with a magnetic ballast. When the FL40 / SS / 37 is turned on with a high-frequency lighting device in order to obtain a luminous flux equivalent to that of a magnetic ballast, it becomes approximately 77 W when two lamps are lit.

Further, there is a technique for increasing the light output with the lighting time so as to compensate for the light beam deterioration due to the aging of the discharge lamp, and making the obtained light beam constant. In general, when the luminous flux of the discharge lamp cuts off 70%, it is determined that the life of the discharge lamp is reached. Therefore, in the above technique, by setting the initial value of the discharge lamp to 70% of the total light, a light flux of 85% on average can be obtained.
The output of 70% with respect to 88W described above is about 55W. Similarly, the 70% output of 66W is about 44W.

  When Hf32 is used, it is conceivable that the storage unit 10 (setting value storage unit) stores the values 88W, 77W, 66W, 55W, and 44W described above as setting values. For example, the storage unit 10 (setting value storage unit) may store so as to select 88W, 77W, and 66W. Moreover, the memory | storage part 10 (setting value memory | storage part) may memorize | store so that 66W, 55W, and 44W may be selected. Further, the storage unit 10 (setting value storage unit) may store so as to select 88W, 66W, and 55W. Of course, the storage unit 10 (the set value storage unit) may store so as to select 88W, 77W, 66W, 55W, and 44W.

  Thus, by selecting the set value, the operation is performed according to the rated value or the like, so that stable operation is possible.

Embodiment 8 FIG.
In this embodiment, the light output is increased with the lighting time so as to compensate for the dimming level adjustment by turning on / off the power switch described in the above embodiment, and the light beam deterioration due to the aging of the discharge lamp. A lighting device combined with a technique for making the luminous flux constant will be described.

As a first example, a description will be given of a lighting device that switches between a time control mode in which the output is varied according to the accumulated lighting time and a set value mode in which a light source (here, a discharge lamp) is turned on with a predetermined output.
FIG. 38 is an internal configuration diagram of the lighting device according to this embodiment. FIG. 38 has the same configuration as that of the lighting device shown in FIG.

First, the timing control mode will be described.
The microcomputer 6 (lighting accumulated time counting unit) counts the accumulated lighting time of the discharge lamp. The microcomputer 6 (lighting accumulated time counting unit) counts the light accumulated time using, for example, an oscillator. And the microcomputer 6 (lighting circuit control part) controls the brightness of the light which a discharge lamp emits by adjusting the output of a discharge lamp based on the counted lighting integration time.
The storage unit 10 (control value storage unit) stores the value of the light control level of the discharge lamp with respect to the accumulated lighting time of the discharge lamp. In order to increase the light output with the lighting time so as to compensate for the deterioration of the luminous flux due to the aging of the discharge lamp and to make the obtained luminous flux constant, the storage unit 10 (control value storage unit) The dimming level that increases the output is stored. For example, the storage unit 10 (control value storage unit) outputs 50% when the accumulated lighting time is from 0 to 500 hours, 55% output when the accumulated lighting time is from 500 hours to 1000 hours, and 1000 times the accumulated lighting time. From time to 1500 hours, a value determined based on the lighting integrated time such as 60% output is stored.
Then, the microcomputer 6 (lighting circuit control unit) has a dimming level corresponding to the lighting integrated time counted by the microcomputer 6 (lighting integrated time counting unit) from the light control level stored in the storage unit 10 (control value storage unit). The value is searched, and the discharge lamp is turned on at the value of the searched dimming level.

Next, the set value mode will be described.
The memory | storage part 10 (setting value memory | storage part) memorize | stores the value which can be taken as a light control level as a setting value. The microcomputer 6 (lighting circuit control unit) lights the discharge lamp according to the dimming level value stored in the storage unit 10 (setting value storage unit).
That is, in the set value mode, the discharge lamp is lit at a predetermined output regardless of the lighting integrated time.

  Then, the lighting device according to this embodiment switches between the time control mode and the set value mode. In other words, the microcomputer 6 (lighting circuit control unit) switches between the timekeeping control mode and the set value mode by turning on / off the power switch described in the above embodiment, and adjusts the dimming level of the discharge lamp. change. That is, the microcomputer 6 (lighting circuit control unit) switches between the timekeeping control mode and the set value mode when the on / off operation of the power switch is continuously performed three times (first number of times). If it is the process shown in FIGS. 4 and 5 (S12), and if it is the process shown in FIGS. 8 and 9 (S42), it switches between the time control mode and the set value mode.

Further, in the setting value mode, when the storage unit 10 (setting value storage unit) stores a plurality of values that can be taken as the dimming level, the dimming level value is obtained by the forward feed process described in the above embodiment. To change. Specific examples are shown below.
For example, it is assumed that the storage unit 10 (setting value storage unit) sequentially stores, for example, two setting values of 70% output and 100% output. In the forward feed process, the timekeeping control mode and the set value mode are switched, and the set values stored in the storage unit 10 (set value storage unit) are sequentially changed.
That is, as shown in FIG. 39 (a), the dimming level is changed step by step in the order of clocking control mode-output 70% (set value mode) -output 100% (set value mode), and output 100% ( Next to the set value mode), the mode is changed to the timing control mode. Further, as shown in FIG. 39 (b), the dimming level is changed one step at a time in the order of output 100% (set value mode) -output 70% (set value mode) -time control mode. The output may be changed in any order such as changing to 100% output (set value mode).
That is, when the number of times counted by the count unit is the first number, the microcomputer 6 (lighting circuit control unit) switches to the set value mode if the current mode is the control mode. If the current mode is the set value mode, the dimming level of the light source is changed to the dimming level value stored as the set value by the set value storage unit after the current dimming level value. At the same time, when there is no dimming level value stored as a set value next to the current dimming level value, the mode is switched to the timekeeping control mode.

  Note that the microcomputer 6 (lighting integration time counting unit) performs lighting integration only for the time during which the discharge lamp is lit at the dimming level value stored by the storage unit 10 (control value storage unit) with respect to the lighting integration time. It may be counted as time, or the time during which the discharge lamp is lit may be counted as the lighting integrated time regardless of the output value of the discharge lamp. In other words, only when the discharge lamp is lit in the timekeeping control mode, the discharge lamp is lit in the case where the discharge lamp is lit in the timekeeping control mode and in the set value mode even if the lighting integrated time is counted. In any case, the lighting integrated time may be counted.

As a second example, a lighting device in which the storage unit 10 (control value storage unit) stores values of a plurality of dimming levels with respect to the integrated lighting time will be described. The lighting device according to this example is the same as the lighting device according to the first example.
For example, it is assumed that the storage unit 10 (control value storage unit) stores the dimming level values of the two modes of the first mode and the second mode with respect to the lighting integrated time. FIG. 40 is a diagram illustrating light control level values in the first mode and the second mode. To increase the light output along with the lighting time so as to compensate for the deterioration of the luminous flux due to the aging of the discharge lamp, and to make the resulting luminous flux constant, the value of the dimming level in any mode takes a higher value as the accumulated lighting time elapses. . That is, the light output is increased as the lighting integration time elapses.
Then, the lighting device according to this embodiment switches between the first mode and the second mode. In other words, the microcomputer 6 (lighting circuit control unit) switches between the first mode and the second mode by the on / off operation of the power switch described in the above embodiment, and dimming the discharge lamp. Change the level. That is, the microcomputer 6 (lighting circuit control unit) switches between the first mode and the second mode when the power switch is turned on / off three times (first number of times) continuously. . If it is the process shown in FIGS. 4 and 5 (S12), and if it is the process shown in FIGS. 8 and 9 (S42), the first mode and the second mode are switched.

  By operating as in the second example, the light output is changed along with the lighting integration time even for a discharge lamp having two rated values of high output 45 W and low output 32 W such as HF 32 W, for example. Technology can be applied. In other words, the first mode is set to a rated output of 32 W, the second mode is set to a high output of 45 W, and the mode is switched by turning on / off the power switch so as to compensate for the light beam deterioration due to the aging of the discharge lamp. While increasing the light output with time, the discharge lamp can be lit by switching between high output and low output.

The storage unit 10 (control value storage unit) takes a dimming level value between the first mode (for example, rated output 32 W) and the second mode (for example, high output 45 W), and Similarly to the first mode and the second mode, a third mode that changes in accordance with the accumulated lighting time may be stored. In other words, if the discharge lamp has two rated values, a mode that takes an intermediate value between outputs determined by the two rated values may be set. FIG. 41 is a diagram showing the light control level values in the third mode. In this case, the microcomputer 6 (lighting circuit control unit) switches the first mode, the second mode, and the third mode by the forward feed process described in the above embodiment, and controls the dimming level of the discharge lamp. To change.
Note that any number of modes may be provided between the first mode and the second mode.

  In the two examples described above, when the microcomputer 6 (lighting circuit control unit) determines that the power supply pause detection count Foff is 3 times (first count), the progressive process (mode When the power supply pause detection count Foff is determined to be 5 (third count), the lighting integrated time may be initialized (returned to 0). That is, when the microcomputer 6 (counting unit) determines that the power supply temporary stop detection number Foff is the third number in (S11) shown in FIG. Is initialized.

  As described above, the light output can be obtained by increasing the light output with the lighting time so as to compensate for the dimming level adjustment by turning on / off the power switch described in the above embodiment and the light beam deterioration due to the aging of the discharge lamp. Combined with technology that makes the luminous flux constant, the light output of the discharge lamp is adjusted. Therefore, it is possible to arbitrarily select the intensity of light output by the user while realizing correction of light beam deterioration due to the aging of the discharge lamp. Further, when realizing the above function, it is not necessary to provide a circuit for inputting a dimming signal, and it is not necessary to add a circuit component or the like.

In the above description, the internal configuration of the lighting device according to this embodiment is described based on FIG. 38 as being the same as the internal configuration of the lighting device shown in FIG. However, the lighting device according to this embodiment may have the internal configuration shown in FIGS. 10, 11, 12, 14, 15, 17, 19, and 20.
That is, as shown in FIG. 10, the power supply time and power are not provided by the circuit unit 7 and the microcomputer 6 for detecting the presence or absence of the commercial power supply, without the power supply time detection unit 8 or the power supply pause detection unit 9. The supply pause time may be determined.
Further, as shown in FIGS. 11 and 12, the commercial power supply includes a charge charging unit 12 that charges a charge during a supply period and discharges a charge during a supply stop period, and the microcomputer 6 (power measurement unit) supplies power again. It may be determined that the supply stop state is within a predetermined set time based on the remaining amount of charge charged in the charge charging unit 12 when starting.
Furthermore, as shown in FIG. 14, the configuration corresponding to the processing described in the second embodiment may be excluded from the configuration of the lighting device in FIGS. 11 and 12 except for the charge charging unit 12.
Further, as shown in FIG. 15, the charge charging unit 12 of the lighting device shown in FIGS. 11 and 12 may be controlled by the microcomputer 6.
Further, the configuration of the charge charging unit 12 may be the configuration shown in FIGS. 17 and 19.
Further, as shown in FIG. 20, a configuration in which a commercial power source presence / absence detection circuit is added to the lighting device shown in FIG. 15 may be used.
Furthermore, as shown in FIG. 42, the lighting control circuit that does not include the microcomputer 6 and the commercial power source detection circuit 7 but fulfills the functions of the counting unit and the lighting circuit control unit among the functions of the microcomputer 6; A lighting timing timer that performs the function of the lighting integrated time counting unit may be provided. That is, in this configuration, the lighting integrated time is counted by the lighting timing timer connected to the load circuit 4, and the counted lighting integrated time is input to the lighting control circuit. Then, the lighting control circuit adjusts the output of the discharge lamp by controlling the drive circuit 5 based on the lighting integrated time and the dimming level.

Embodiment 9 FIG.
In this embodiment, a lighting state display device that displays an output display indicating the degree of output of the discharge lamp of the discharge lamp lighting device will be described. The case where the discharge lamp lighting device includes a display unit 16 that displays an output display indicating the degree of output will also be described.

FIG. 43 is an internal configuration diagram of the lighting device and the lighting state display device according to this embodiment. In FIG. 43, a broken line portion A indicates a lighting device, and a broken line portion B indicates a lighting state display device.
The configuration of the lighting device shown in FIG. 43 is substantially the same as the configuration of the lighting device according to the first embodiment shown in FIG. 2, but the processing contents are the same.

In FIG. 43, the microcomputer 6 performs frequency control of the inverter circuit 3 and determination of a power on / off signal sent from the power synchronizing circuit unit 18. The power supply synchronization circuit unit 18 is a circuit that detects on / off of the commercial power supply, and has functions equivalent to the power supply time detection unit 8 and the power supply temporary stop detection unit 9 of FIG.
Here, the configuration of the lighting device according to this embodiment is described as being the same as the configuration of the lighting device according to Embodiment 1 shown in FIG. 2, but the lighting device according to this embodiment is not limited to the other embodiments. It can be said that the lighting device according to the embodiment has substantially the same configuration.

(Configuration of lighting status display device)
The lighting state display device shown in FIG. 43 includes a control circuit power supply 13 (display power supply), a microcomputer 14 (second count unit, display control unit), and a power supply synchronization circuit unit 15 (second power supply measurement unit, first power supply unit). 2 period determination unit), a display unit 16, and a storage unit 17 (display level storage unit).
The control circuit power supply 13 is a power supply for display elements included in the internal microcomputer 14 and the display unit 16. The microcomputer 14 includes the same algorithm as the change of the dimming level of the lighting device (sometimes referred to as the microcomputer 6) in the program of the storage unit 17 (nonvolatile memory), and the dimming of the lighting device based on the algorithm. Detects the level setting status and controls the status. The power supply synchronization circuit unit 15 detects ON / OFF of the power switch and inputs it to the microcomputer 14. The display unit 16 includes a plurality of LEDs (display elements, light emitters) for display. The lighting device and the lighting state display device are commonly connected from a commercial power source to a power source via a power switch provided on the wall, and the on / off state of the power source as a result of the operation of the power switch is determined by the lighting device. The same is applied to the lighting state display device.

  As shown in FIG. 43, the control circuit power supply 13 and the power supply of the lighting device are connected in parallel to the power supply. Therefore, the power supply synchronization circuit unit 15 detects the same results as the power supply time detection unit 8 and the power supply pause detection unit 9 for the power supply time and the power supply pause time based on the power supply. Since the microcomputer 14 operates with a program of the same algorithm as the microcomputer 6, the microcomputer 14 controls the dimming level with respect to the detection results of the power supply time detection unit 8 and the power supply pause detection unit 9. Can be obtained, the same dimming level (display level) as the dimming level changed by the microcomputer 6 can be obtained. The display unit 16 displays an output display corresponding to the light control level (display level) obtained by the microcomputer 14. The same algorithm is just an example. Even if the algorithm is not the same, the microcomputer 14 can detect the detection result of the power supply synchronization circuit unit 15 (the power supply synchronization circuit unit 15 can detect the power supply time detection unit 8 and the power supply pause detection unit 9 It is only necessary to incorporate a program for determining the same dimming level (display level) as that of the microcomputer 6 for detecting the same result. Each time the microcomputer 14 changes the dimming level (display level), the storage unit 17 overwrites and stores the changed dimming level (display level). The display unit 16 causes the display unit 16 to display an output display corresponding to the dimming level (display level) stored in the storage unit 17.

(Display control by microcomputer 6)
FIG. 44 is a diagram showing a configuration in which the microcomputer 6 of the lighting device performs control by the microcomputer 14 of the lighting state display device. A display unit 16 composed of LEDs is connected to the microcomputer 6 and displays the dimming level of the lighting device. As described above, when the dimming level is changed by the microcomputer 6, the display unit 16 displays a display corresponding to the changed dimming level by the LED.

(Storing in the switch box 600)
FIG. 45 shows an operation method using a power switch as a wall switch as an operation method of turning on / off the power. FIG. 45 shows lighting devices 701a to 701n, all of which include the lighting device shown in FIG. The same applies to the other drawings. FIG. 45 is a wiring diagram showing the relationship between the plurality of lighting devices 701a to 701n, the power switch, and the lighting state display device, and shows a case where the power switch and the lighting state display device are housed in the switch box 600. Yes. Although the lighting state display device has the configuration of FIG. 43, only the LEDs are shown and simplified. As shown in FIG. 45, the plurality of lighting devices 701a to 701n are connected in parallel to the power source. The lighting state display device is connected to the power supply in parallel with the lighting device (rectifier circuit). The lighting state display device is stored together with the power switch in the switch box 600 in which the power switch is stored. FIG. 46 is a diagram showing a structure in which a lighting state display device and a power switch are housed in a single switch box 600. 46 (a) is a front view, and FIG. 46 (b) is a cross-sectional view along the line AA.

(Adoption of SSR)
FIG. 47 shows a method using a semiconductor contact or a mechanical contact controlled by the microcomputer 14 as a power on / off operation method. In FIG. 47, the microcomputer 14 and the SSR 551 (Solid State Relay) constitute an operation conversion unit 550. When the SSR 551 is used, the microcomputer 14 controls the SSR 551 by a complicated on / off operation of the power switch (commercial power) by the direct switches 552a, 552b, and 552c that can be set to a desired output by one operation. This is possible. The microcomputer 14 controls the display element (LED). That is, when any of the direct switches 552a to 552c is operated, the microcomputer 14 detects this operation and controls the SSR 551. The control by the microcomputer 14 is control for creating on / off of a power switch corresponding to the direct switch. For example, when the direct switch 552b (70%) is operated, the microcomputer 14 detects that the direct switch 552b is operated, and executes the forward feed process until the dimming level reaches 70%. An on / off operation of the power switch in the above embodiment is created. Electric power is supplied to the lighting devices 701a to 701n having lighting devices according to the on / off state (switching state) of the power switch created by the microcomputer 14 controlling the SSR 551. Therefore, each of the illuminating devices 701a to 701n has a dimming level changed by a forward feed process. On the other hand, when the direct switch 552b (forward feeding process) is operated, the microcomputer 14 displays a display corresponding to the light control level of 70% on the display unit 16 including a plurality of LEDs.

  FIG. 48 is a diagram illustrating a case where the operation conversion unit 550 uses an infrared remote controller instead of the direct switch. The operation conversion unit 550 includes an infrared light receiving unit (reception unit) 561 instead of the direct switch. The infrared remote controller 570 transmits one of the signals (output correspondence signals) corresponding to the direct switches 552a to 552c, and the infrared light receiving unit 561 receives this signal. The subsequent operation is the same as that of the direct switch of FIG.

(Adoption of LED)
As the display element of the display unit 16 of the lighting state display device or the display unit 16 of FIG. 44, the cheapest LED (an example of a light emitter) is suitable. As a display method in the case of using an LED, for example, a case is assumed where the output is set in three stages of high output (all light), intermediate output, and low output. The LED of the lighting state display device (or display unit 16) assumes the case of FIG. At this time, the LED of the lighting state display device has LED 1 as a high output (all light), LED 2 as a medium output, LED 3 as a low output, and LED 4 as a setting confirmation display. By controlling so that one LED is lit only in each setting state, the efficiency of the display power supply can be improved, which is also effective for energy saving. The display element of the display unit 16 is not limited to a single LED, and an LCD (Liquid Crystal Display), an LED segment device, or the like may be used. To make the energy saving effect known to those who use this lighting device, LEDs are arranged on a straight line as shown in Fig. 46 (a), and only LED1 is turned on at high output, and LEDs 1 and 2 are turned on at medium output. It is also effective to arrange the LEDs in a substantially straight line shape to form a bar graph. Alternatively, in addition to the case where the discharge lamp lighting device is turned off, the LED may not be lit when all light is lit.

(Removable method)
FIG. 49 is a diagram showing a configuration in which the lighting state display device is detachable from the display outlet 610. FIG. Although the lighting state display device has the configuration of FIG. 43, only the LEDs are shown and simplified. A display outlet 610 is provided on the wall, ceiling, or lighting device. The indicator plug 620 provided in the lighting state display device is connected to the indicator outlet 610. Thereby, the lighting state display device was made detachable. The lighting state display device includes a display plug 620 that is connected to a display outlet 610 that is connected in parallel to the lighting devices 701a to 701n (discharge lamp lighting devices) with respect to the power source. The power supply synchronization circuit unit 15 of the lighting state display device detects the same result as the power supply synchronization circuit unit 18 via the display plug 620 connected to the display outlet 610. The microcomputer 14 sets the same value as the setting value that the microcomputer 6 determines as a new setting based on the detection result of the power supply synchronization circuit unit 18 based on the detection result of the power supply synchronization circuit unit 15 (the second new new value). Set value), and an output display corresponding to the confirmed set value (second new set value) is displayed on the display unit 16. For example, when the lighting state display device cannot be accommodated in the switch box 600 as shown in FIG. 46 due to space constraints, this method is used to connect the lighting state display device to the display outlet 610 only at the time of output setting. After connecting and setting, the lighting state display device can be removed. Further, since the lighting state display device is detachable, it is possible to set a plurality of lighting devices with one lighting state display device, thereby saving resources and energy.

(Adoption of power supply terminal block 660)
FIG. 50 is a diagram in which the lighting state display device has a ceiling embedded structure. FIG. 51 is a diagram showing a configuration of a lighting state display device. The lighting state display device of FIG. 51 is provided with a power supply terminal block 660 on the input side of the diode bridge with respect to the lighting state display device of FIG. The lighting state display device has a ceiling mounting structure and includes a power terminal block 660 that enables feed wiring. 50 are the same as the wirings 651 to 654 in FIG. The lighting state display device includes a power supply terminal block 660 that inputs a current before the lighting devices 701a to 701n and distributes the input current to the lighting devices (lighting devices). The power supply synchronization circuit unit 15 detects the same result as that of the power supply time detection unit 8 and the power supply pause detection unit 9 via the power supply terminal block 660. The microcomputer 14 obtains a dimming level that is the same as the dimming level changed by the microcomputer 6 based on the detection result of the power supply synchronization circuit unit 18 as a dimming level (display level) based on the detection result of the power supply synchronization circuit unit 15. Then, an output display corresponding to the obtained light control level (display level) is displayed on the display unit 16.

  By providing the power supply terminal block 660, for example, when the lighting state display device cannot be accommodated in the switch box 600 due to space reasons, or because only one line is originally drawn because of a single-cut switch, and two lines are drawn. This method is effective when wiring work is required. Since this method is a ceiling embedding method, the wiring connected to the lighting fixture (illumination device) installed behind the ceiling is cut, and the cut wiring is only connected to the power supply terminal block 660 of the lighting state display device. Because it can be used in, it does not require troublesome wiring work.

  In the above embodiment, what has been described as “to part” may be “to circuit”, “to device”, “to step”, “to processing”, and the like.

1 is an overall view of a lighting system. FIG. 3 is an internal configuration diagram of the lighting device according to Embodiment 1. 3 is a flowchart showing an outline of the operation of the lighting device according to Embodiment 1. 5 is a flowchart showing the operation of the lighting device when the commercial power supply is turned on according to Embodiment 1. 5 is a flowchart showing the operation of the lighting device when commercial power is turned off according to the first embodiment. Explanatory drawing of the light control level change in a sequential feed process. The internal block diagram of the lighting device which concerns on Embodiment 2. FIG. 6 is a flowchart showing the operation of the lighting device when the commercial power supply is turned on according to the second embodiment. 9 is a flowchart showing the operation of the lighting device when commercial power is turned off according to the second embodiment. The internal block diagram of the lighting device which shows the other structure which detects the presence or absence of a commercial power source. The figure which shows the other structure which measures the stop period of a commercial power supply (corresponding to Embodiment 1). The figure which shows the other structure which measures the stop period of a commercial power supply (corresponding to Embodiment 1). The operation | movement chart figure of a structure shown in FIG. 11 and FIG. The figure which shows the other structure which measures the stop period of a commercial power supply (corresponding to Embodiment 2). FIG. 13 is an internal configuration diagram of a lighting device configured to control a charge charging unit 12 of the lighting device illustrated in FIGS. 11 and 12 by a microcomputer 6. The operation | movement chart figure of a structure shown in FIG. The internal block diagram of the lighting device which changed the structure of the charge charge part 12 of the lighting device shown in FIG. The operation | movement chart figure of a structure shown in FIG. The figure which shows the structure which changed the location where the microcomputer 6 of a structure shown in FIG. 15 receives power supply. The figure which shows the structure which added the commercial power presence / absence detection circuit to the structure shown in FIG. 6 is a flowchart showing the operation of the lighting device when a commercial power supply is turned on, in which an initial lighting process is added to the lighting device according to the first embodiment. 9 is a flowchart showing the operation of the lighting device when the commercial power is turned on in the lighting device according to the second embodiment. The figure which shows the output change when a sequential feed process is performed. The figure which shows the output change when a sequential feed process is performed. The figure which shows the output change when a sequential feed process is performed. The figure which shows the output change when a sequential feed process is performed. The figure which shows operation | movement of the buzzer circuit 27 when a sequential feed process is performed. The figure which shows operation | movement of the buzzer circuit 27 when a sequential feed process is performed. The internal block diagram of a lighting device provided with the buzzer circuit 27. FIG. The figure which shows the output change when an initial lighting process is performed. The figure which shows operation | movement of the buzzer circuit 27 when an initial lighting process is performed. The flowchart which shows operation | movement of the lighting device at the time of commercial power-on of the lighting device which sets arbitrary brightness by one change operation (corresponding to Embodiment 1). The figure which shows the change of the light control level of the discharge lamp in an output setting process. The flowchart which shows operation | movement of an output setting process. The flowchart which shows operation | movement of the lighting device at the time of commercial power ON of the lighting device which sets arbitrary brightness by one change operation (corresponding to Embodiment 2). The figure which shows the relationship between the input in an output setting process, and the light control level set. The figure which shows the synchronization method in an output setting process. FIG. 10 is an internal configuration diagram of a lighting device according to an eighth embodiment. Explanatory drawing of the light control level change in a sequential feed process. The figure which shows the value of the light control level of a 1st mode and a 2nd mode. The figure which shows the value of the light control level of a 3rd mode. FIG. 20 is a diagram showing another example of an internal configuration diagram of a lighting device according to Embodiment 8. The internal block diagram of the lighting device and lighting state display device which concern on Embodiment 9. FIG. FIG. 10 shows a structure of a lighting device according to Embodiment 9. FIG. 10 shows a lighting state display device housed in a switch box according to a ninth embodiment. FIG. 10 shows a state of a switch box according to the ninth embodiment. FIG. 10 shows a structure of a lighting state display device according to Embodiment 9; FIG. 10 shows a configuration of a lighting state display device realized as a remote control unit according to a ninth embodiment. FIG. 10 shows a lighting state display device including a display plug in Embodiment 9; FIG. 10 illustrates a lighting state display device having a power supply terminal block in Embodiment 9; FIG. 10 is a configuration diagram of a lighting state display device having a power supply terminal block in Embodiment 9.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 Power supply rectifier circuit, 2 Active filter circuit, 3 Inverter circuit, 4 Load circuit, 5 Drive circuit, 6,14 Microcomputer, 7 Commercial power supply detection circuit, 8 Power supply time detection part, 9 Power supply temporary stop detection part, 10 , 17 Storage unit, 11 Control circuit power supply, 12 Charge charging unit, 13 Display power supply, 15, 18 Power supply synchronization circuit unit, 16 Display unit, 19 Lamp detection circuit, 20 Lighting fixture, 701a to 701n Lighting device, 21 fixture Main body, 22 reflector, 23 discharge lamp, 24 switch box, 25 first power switch, 26 second power switch, 27 buzzer circuit, 550 operation conversion unit, 551 SSR, 600 switch box, 610 outlet for display, 620 Plug for display, 660 Power terminal block.

Claims (34)

It is a lighting device for a light source that is lit by power supplied from a power source,
A power source measurement unit that measures at least one of a period in which a supply state in which power is supplied from the power source continues and a period in which a stop state in which power is not supplied from the power source continues;
A period determination unit that determines whether the period measured by the power supply measurement unit is shorter than a predetermined period;
A counting unit that counts the number of times the period determination unit determines that the period measured by the power source measurement unit is shorter than a predetermined period;
When the number of times counted by the counting unit is a first number, the lighting circuit control unit changes the dimming level of the light source, and when changing the dimming level of the light source, a predetermined dimming level and When the difference in brightness from the dimming level after change is α, the dimming level at which the difference between the predetermined dimming level and the brightness is at least 2α and the predetermined dimming level alternately, A lighting device comprising: a lighting circuit controller configured to change the light control level of the light source to the light control level after the change after changing the light control level of the light source a plurality of times . It is a lighting device for a light source that is lit by power supplied from a power source,
A power source measurement unit that measures at least one of a period in which a supply state in which power is supplied from the power source continues and a period in which a stop state in which power is not supplied from the power source continues;
A period determination unit that determines whether the period measured by the power supply measurement unit is shorter than a predetermined period;
A counting unit that counts the number of times the period determination unit determines that the period measured by the power source measurement unit is shorter than a predetermined period;
When the number of times counted by the counting unit is a first number, the lighting circuit control unit changes the dimming level of the light source, and the dimming level of the light source is at least 50% or more of the maximum output If the dimming level of the light source is changed only up to the level, after changing the dimming level of the light source a plurality of times alternately between the output of 50% or less of the maximum output and the predetermined dimming level A lighting device comprising: a lighting circuit control unit that changes a dimming level of the light source . It is a lighting device for a light source that is lit by power supplied from a power source,
A power source measurement unit that measures at least one of a period in which a supply state in which power is supplied from the power source continues and a period in which a stop state in which power is not supplied from the power source continues;
A period determination unit that determines whether the period measured by the power supply measurement unit is shorter than a predetermined period;
A counting unit that counts the number of times the period determination unit determines that the period measured by the power source measurement unit is shorter than a predetermined period;
When the number of times counted by the counting unit is a first number of times, the dimming level of the light source is changed, and when the number of times counted by the counting unit is a second number of times, the dimming of the light source is set to an initial value. A lighting circuit control unit for changing the level, and when changing the dimming level of the light source to an initial dimming level, the dimming level brighter than the predetermined dimming level and the predetermined dimming level A lighting circuit control unit that changes the light control level of the light source to an initial light control level after changing the light control level of the light source by repeating a plurality of times alternately with a dark light control level. A lighting device. It is a lighting device for a light source that is lit by power supplied from a power source,
A power source measurement unit that measures at least one of a period in which a supply state in which power is supplied from the power source continues and a period in which a stop state in which power is not supplied from the power source continues;
A period determination unit that determines whether the period measured by the power supply measurement unit is shorter than a predetermined period;
A counting unit that counts the number of times the period determination unit determines that the period measured by the power source measurement unit is shorter than a predetermined period;
When the number of times counted by the counting unit is the first number, the dimming level of the light source is changed from a dimming level darker than the dimming level after change or a dimming level brighter than the dimming level after change A lighting circuit controller that changes the dimming level of the light source in a stepwise manner until a later dimming level, and when changing the dimming level of the light source to an initial dimming level, from a predetermined dimming level The light control level of the light source is changed to the initial light control level after changing the light control level of the light source by repeating a plurality of times alternately between a bright light control level and a light control level darker than the predetermined light control level. A lighting device comprising: a lighting circuit control unit that changes a level . It is a lighting device for a light source that is lit by power supplied from a power source,
A power source measurement unit that measures at least one of a period in which a supply state in which power is supplied from the power source continues and a period in which a stop state in which power is not supplied from the power source continues;
A period determination unit that determines whether the period measured by the power supply measurement unit is shorter than a predetermined period;
A counting unit that counts the number of times the period determination unit determines that the period measured by the power source measurement unit is shorter than a predetermined period;
When the number of times counted by the counting unit is the first number, the period determining unit changes the light control level of the light source temporarily and the period measured by the power source measuring unit is not shorter than a predetermined period. And a lighting circuit control unit for confirming a change in the light control level of the light source when determined . It is a lighting device for a light source that is lit by power supplied from a power source,
A power source measurement unit that measures at least one of a period in which a supply state in which power is supplied from the power source continues and a period in which a stop state in which power is not supplied from the power source continues;
A period determination unit that determines whether the period measured by the power supply measurement unit is shorter than a predetermined period;
A counting unit that counts the number of times the period determination unit determines that the period measured by the power source measurement unit is shorter than a predetermined period;
When the number of times counted by the counting unit is the first number, the dimming level of the light source is changed stepwise so as to brighten or darken from the first dimming level to the second dimming level. And a lighting circuit control unit that stops changing the light control level of the light source when a predetermined input is received . It is a lighting device for a light source that is lit by power supplied from a power source,
A power source measurement unit that measures at least one of a period in which a supply state in which power is supplied from the power source continues and a period in which a stop state in which power is not supplied from the power source continues;
A period determination unit that determines whether the period measured by the power supply measurement unit is shorter than a predetermined period;
A counting unit that counts the number of times the period determination unit determines that the period measured by the power source measurement unit is shorter than a predetermined period;
A lighting integrated time counting unit for counting the lighting integrated time of the light source;
A control value storage unit that stores the value of the light control level of the light source with respect to the integrated lighting time of the light source;
When the number of times counted by the counting unit is a first number, the lighting circuit control unit changes the dimming level of the light source, and the control is performed on the lighting integrated time counted by the lighting integrated time counting unit. A timing control mode for controlling the dimming level of the light source based on the dimming level value stored in the value storage unit, and a set value for controlling the dimming level of the light source to a set value determined irrespective of the lighting integrated time A lighting device comprising: a lighting circuit control unit that switches a mode and changes a dimming level of the light source . It is a lighting device for a light source that is lit by power supplied from a power source,
A power source measurement unit that measures at least one of a period in which a supply state in which power is supplied from the power source continues and a period in which a stop state in which power is not supplied from the power source continues;
A period determination unit that determines whether the period measured by the power supply measurement unit is shorter than a predetermined period;
A counting unit that counts the number of times the period determination unit determines that the period measured by the power source measurement unit is shorter than a predetermined period;
A lighting integrated time counting unit for counting the lighting integrated time of the light source;
A control value storage unit for storing a value of the light control level of the first mode and a value of the light control level of the second mode with respect to the lighting integrated time of the light source;
When the number of times counted by the counting unit is the first number of times, the lighting circuit control unit changes the dimming level of the light source, and when the number of times counted by the counting unit is the first number of times, The dimming level value stored in the control value storage unit with respect to the total lighting time counted by the total lighting time counting unit, and the dimming level of the light source is set to a dimming level value in a mode different from the current mode. A lighting device comprising: a lighting circuit control unit that changes a level . 9. The counting unit according to claim 1, wherein the counting unit resets the counted number when the period determination unit determines that the period measured by the power source measurement unit is not shorter than a predetermined period . lighting device according to. The power source measurement unit measures both a period in which a supply state in which power is supplied from the power source continues and a period in which a stop state in which power is not supplied from the power source continues,
The period determination unit determines whether or not the period during which the supply state in which power is supplied from the power source has been continued is shorter than the first period, and the period in which the stop state measured by the power source measurement unit has continued. Determine whether it is shorter than the second period,
The counting unit counts the number of times the period determination unit determines that the period during which the stopped state has continued is shorter than the second period, and the period during which the supply state has continued is shorter than the first period. If when the period determination unit determines or periods stop state continues is determined that the period determining unit when not less than the second period, from claim 1, characterized in that resetting the number of counts to 9 The lighting device in any one of. The lighting device further includes
A set value storage unit that stores a value that can be taken as the dimming level of the light source as a set value;
A dimming level storage unit that stores a current value that is the dimming level of the current light source;
When the number of times counted by the counting unit is the first number, the lighting circuit control unit is next to the current value stored by the dimming level storage unit among the setting values stored by the setting value storage unit. and the claims 1 to 3, characterized in that to change the dimming level of the light source to the value of the bright dimming level value or next darker dimming level, the lighting device according to any one of the claims 5 . The lighting device further includes
A charge charging unit that charges electric charges while electric power is supplied from the power source and discharges electric charges while electric power is not supplied from the power source,
The power supply measurement unit measures a period during which the stopped state is continued based on a residual amount of charge charged in the charge charging unit at a time when power supply from the power supply is started. The lighting device according to 10 or 11 . When the lighting circuit control unit changes the dimming level of the light source to an n-step bright dimming level or an n-step dark dimming level with a setting value stored in the setting value storage unit, rather than a predetermined dimming level. The lighting device according to claim 11 , wherein a specific sound corresponding to the dimming level to be changed is sounded. The lighting device according to claim 13 , wherein the lighting circuit control unit plays a predetermined sound n times as the specific sound. The set value storage unit stores an initial value of a light control level of the light source,
When the number of times counted by the counting unit is the second number, the lighting circuit control unit emits a sound different from the predetermined sound and adjusts the light source to the initial value stored in the set value storage unit. The lighting device according to claim 13 or 14 , wherein the light level is changed. The lighting circuit control unit repeats the operation of changing the light control level of the light source stepwise from the first light control level to the second light control level a predetermined number of times, and repeats the operation a predetermined number of times. The lighting device according to claim 6 , wherein when there is no predetermined input, the dimming level is not changed and the dimming level before the change is maintained. The lighting circuit control unit, after changing the dimming level of the light source from the dimming level of the first stage to the dimming level of the second stage, after the predetermined input within a predetermined period, The lighting device according to claim 6 or 16, wherein the light control level of the light source is changed to the light control level of the first stage, and the change of the light control level is stopped. The lighting device further includes
The lighting device according to any one of claims 1 to 17, further comprising a count storage unit that stores the number of times counted by the count unit in a nonvolatile memory. The lighting device further includes
In the set value mode, a set value storage unit that stores a value that can be taken as a dimming level of the light source as a set value in a predetermined order;
When the number of times counted by the counting unit is the first number, the lighting circuit control unit switches to the set value mode if the current mode is the timekeeping control mode, and the current mode is the set value mode. If so, the dimming level of the light source is changed to the dimming level value stored as the set value by the set value storage unit next to the current dimming level value, and the current dimming level value is changed. 8. The lighting device according to claim 7 , wherein when there is no dimming level value stored as a set value, the mode is switched to the timekeeping control mode. The lighting device according to claim 7 or 19 , wherein the lighting integrated time counting unit counts the lighting integrated time of the light source only when the light source is turned on in the timekeeping control mode. 21. The lighting circuit control unit according to claim 7, wherein when the number of times counted by the counting unit is a third number, the lighting integrated time is initialized. Lighting device. It is a lighting device for a light source that is lit by power supplied from a power source,
A charge charging unit that charges a charge while power is supplied from the power source to the light source, and discharges a charge while power is not supplied from the power source;
A power source measurement unit that measures a period of time during which a stop state in which no power is supplied from the power source continues due to a residual amount of charge charged in the charge charging unit at the time when power supply from the power source is started;
A lighting circuit control unit that changes the dimming level of the light source based on the length of the period measured by the power source measurement unit ;
The charge charging part is
A first capacitor that charges a charge while power is supplied from the power source to the light source;
A resistor that consumes the electric charge charged in the first capacitor;
A second capacitor connected to the first capacitor via a switch;
When a discharge signal is input when connected to the switch, a discharge signal output terminal for controlling on / off of the switch by the discharge signal;
A charge output terminal connected to the first capacitor and charged with the charge when the charge is input;
A charge charge detection terminal connected between the first capacitor and the second capacitor and detecting a charge moving from the first capacitor to the second capacitor;
The lighting device further includes
When power is supplied from the power source to the light source, a discharge signal is input to the discharge signal output terminal to control the switch, and the charge charged in the first capacitor is moved to the second capacitor. A charge control unit configured to input the charge to the charge output terminal and charge the first capacitor when the charge charged in the first capacitor moves to the second capacitor;
The power supply measurement unit detects, from the charge charge detection terminal, a charge that moves from the first capacitor to the second capacitor when the charge control unit inputs a discharge signal to the discharge signal output terminal. A lighting device characterized by measuring a remaining amount of electric charge charged in the first capacitor and measuring a period during which the stopped state continues . The lighting device according to claim 22 , wherein the charge output terminal and the charge charge detection terminal are the same terminal. A lighting state display device for displaying a dimming level of a light source to be turned on by the lighting device according to any one of claims 1 to 23 ,
A lighting state display device comprising: a display unit that changes a display in synchronization with a change in a dimming level of the light source by the lighting circuit control unit. The lighting state display device is connected to the power source in parallel with the lighting device,
The lighting state display device further includes:
A second power measurement unit that measures at least one of a period in which a supply state in which power is supplied from the power source continues and a period in which a stop state in which power is not supplied from the power source continues;
A second period determination unit that determines whether the period measured by the second power measurement unit is shorter than a predetermined period;
A second count unit that counts the number of times the period determination unit determines that the period measured by the second power source measurement unit is shorter than a predetermined period;
When the number of times counted by the second count unit is the first number, a display control unit that sets a dimming level that is the same as the dimming level of the light source changed by the lighting circuit control unit as a display level; Prepared,
The lighting state display device according to claim 24 , wherein the display unit changes the display based on a display level set by the display control unit. The lighting state display device is connected to the lighting device,
The display unit obtains information indicating a change in the dimming level of the light source from the lighting device, and changes the display in synchronization with the change in the dimming level of the light source by the lighting circuit control unit. The lighting state display device according to claim 24 . The lighting state display device further includes:
A display level for storing the dimming level of the light source as a display level, and for each time the dimming level of the light source is changed, the changed dimming level is overwritten on the already stored display level as a display level. A storage unit,
The display unit, a lighting state display device according to claim 24, characterized in that the display based on the display level where the display level storage unit has stored to 26. The display unit has a light emitter, and does not emit light when at least one of the case where no current is supplied from the power source and the light control level of the light source is the brightest light control level. 28. A lighting state display device according to any one of claims 24 to 27 . The lighting state display device according to any one of claims 24 to 28 , wherein the display section includes a plurality of light emitters, and emits one of the light emitters. The display unit includes a plurality of light emitters disposed in a substantially straight line, from claim 24, wherein changing the number of light emitters for emitting light in response to a change of the dimming level of the light source 29 The lighting state display apparatus in any one of to. The lighting state display apparatus, according to claim 24, characterized in that the said lighting device switches whether to supply power from the power switch is housed in a switch box which is housed up to 30 Lighting status display device. The lighting state display device further includes:
Lighting state display device according to claim 24, characterized in that it comprises a plug which can be connected to outlets connected in parallel with the lighting device relative to the power supply to 31. The lighting state display device further includes:
The lighting state display device according to any one of claims 24 to 32, further comprising a power supply terminal block that receives current from the power source and distributes the input current to the lighting device. A lighting apparatus comprising at least one of the lighting device according to any one of claims 1 to 23 and the lighting state display device according to any one of claims 24 to 33. .

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