JP2013235655A - Illumination lamp and lighting fixture - Google Patents

Abstract

An illuminating lamp that can be replaced without worrying about polarity and a luminaire using the illuminating lamp.
A plurality of light emitting elements 25 connected in cascade, a first rectifier circuit 30 connected to an anode side of a first light emitting element 25a, and a second terminal connected to a cathode side of a final light emitting element 25n. The rectifier circuit 40 constitutes an illumination lamp. An LED is used as the light emitting element 25. The internal terminals (connection midpoints) p and q of the first rectifier circuit 30 are connected to the anode side of the first-stage light emitting element 25a, and the internal terminals (connection midpoints) p and q of the second rectifier circuit 40 are Since it is connected to the cathode side of the light emitting element 25n in the final stage, the light emitting element 25 can be turned on without worrying about the polarity of the voltage applied to the external terminals 1 to 4 of the rectifier circuits 30 and 40.
[Selection] Figure 2

Description

  The present invention relates to an illuminating lamp using a light emitting element and a luminaire using the same.

  Fluorescent lamps have long been used as illumination lamps used in living rooms and offices.

  In recent years, instead of fluorescent lamps, lighting lamps using light emitting elements such as LEDs are being changed. An illuminating lamp made of a light emitting element has a long life and can save power. Therefore, even if the selling price is high, there is a strong tendency to replace it with a luminaire using a fluorescent lamp.

  There are a number of prior art lighting fixtures using fluorescent lamps. Among them, recently, there are also many prior arts related to lighting fixtures using LEDs (for example, Patent Documents 1 to 4).

  Patent Document 1 is an invention related to protection of a lighting circuit among lighting fixtures using LEDs, and Patent Literature 2 shows a specific example of dimming in an LED lighting fixture, which is provided with a variable resistor and its value. The brightness of the LED is adjusted according to the above. Patent Document 3 is also an example of a dimming circuit, and the dimming circuit unit is controlled based on a dimming control signal. However, no means for generating the dimming control signal is disclosed. Patent Document 4 is also an invention related to dimming, in which a control unit is provided and dimming is adjusted according to a setting mode.

JP 2011-77037 A JP 2012-14953 A JP-A-6-325890 JP 2012-48854 A

  By the way, straight tube type LED illumination lamps (illumination lamps) having the same size and the same form as fluorescent lamps have been developed even for illumination lamps using light emitting elements such as LEDs. In the case of a straight tube type LED lighting, among existing lighting fixtures for fluorescent lamps, an existing fixture main body attached to the ceiling or the like, a socket (connector) provided in the fixture main body, etc. It can also be used as an instrument body or socket.

  While LED lighting is driven by a DC power supply, fluorescent lamps are driven by AC voltage, so that a ballast or the like necessary for fluorescent lighting fixtures is not required. Four power lines are usually led out from the ballast, two of which are connected to the internal terminals (inserts) of one socket, and the other two power lines are the internal terminals of the other socket. It is connected to the.

  On the other hand, since a DC voltage is applied to an LED lighting lamp, in principle, it is sufficient if there are two cap pins, but since it has the same form as a fluorescent lamp, two caps on one side are provided. It is common to have a pin.

  Since two power supply lines (power supply terminals) and negative power supply lines (power supply terminals) are drawn out from the LED power supply circuit, one of the two power supply lines (for example, the positive power supply line) is described above. Connected to one of the two internal terminals provided in one socket, and the other power supply line (negative power supply line) is also connected to one of the two internal terminals provided in the other socket. The

  Since the LED lamp has a polarity when a voltage is applied, if the polarity of the voltage supplied to the socket B (plus and minus) and the polarity of the LED lamp (anode and cathode) do not match, the illumination The light emitting elements constituting the lamp are not energized, and the light emitting elements cannot be turned on. In addition to being unable to light, the light emitting element itself may be damaged or destroyed.

  If the person in charge of the construction replaces the LED lighting after performing an alternative construction such as removing the ballast on the spot, there will be no particular problem. However, when this LED lamp is replaced with a new one, a general user replaces the LED lamp. Therefore, there is a high possibility of ignoring the polarity of the LED lamp. Then, the above-mentioned thing can happen. Even if it is not so, it is accompanied by troublesome confirmation work other than exchanging while matching the polarities. The above Patent Documents 1 to 4 do not disclose a technique for overcoming these problems.

  Therefore, the present invention solves such conventional problems, and proposes an illuminating lamp that can be replaced without worrying about the polarity of the illuminating lamp, such as at least an LED illuminating lamp, and a luminaire using the same. Is.

  Furthermore, the present invention proposes a lighting fixture that can be used as an emergency light at the time of light control, lighting time adjustment, and power failure with a simple configuration.

  The illumination lamp according to claim 1 is connected to a plurality of light emitting elements connected in cascade, a first rectifier circuit connected to the anode side of the first light emitting element, and a cathode side of the last light emitting element. It is characterized by comprising a second rectifier circuit.

  By providing a rectifier circuit on the lamp itself, it is necessary to always check the positive position of the DC voltage (drive voltage) from the power supply circuit without checking the insertion position of the lamp cap pin with respect to the socket socket on the fixture body. The voltage is applied to the anode side of the light emitting element, and the negative voltage is applied to the cathode side.

  According to a fourth aspect of the present invention, there is provided a lighting fixture comprising a fixture main body, an illumination lamp attached to the fixture main body, and a power supply circuit supplied to the illumination lamp.

  Since the illumination lamp of Claims 1-3 is used for an illumination lamp, a safe lighting fixture can be provided.

  Since the illuminating lamp and the luminaire according to the present invention include a pair of rectifier circuits therein, the insertion position of the base pin is determined regardless of which insertion port the drive voltage applied to the socket of the appliance body is applied. Even if you don't mind, you can always turn on the lights safely and reliably. Therefore, even when the existing fluorescent lamp apparatus main body is diverted for the LED illumination lamp, it is safe, and the replacement work can be simplified and the time for the mounting operation can be shortened.

  By supplying any signal among the dimming signal, human sensor signal, timer signal, power failure detection signal, etc. from the communication port to the control circuit built in the power supply circuit, it is possible to adjust any lighting fixture. In addition to being able to adjust the light, it is possible to automatically control the on / off of the lighting depending on the presence or absence of the room and the presence of people walking in the hallway. It can be used as an emergency light or guide light.

It is a conceptual diagram which shows an example of the lighting fixture which concerns on this invention. It is a specific connection diagram showing an example of an illumination lamp. It is a figure which shows the example of the illumination operation | movement of an illuminating lamp. It is a connection diagram which shows the specific example of the power supply circuit provided in a lighting fixture. It is a timing chart which shows an example of light control operation. It is explanatory drawing of the various functions with which a lighting fixture is equipped. It is a conceptual diagram which shows the other example of the lighting fixture which concerns on this invention. It is a specific block diagram of the lighting fixture used for FIG. It is a conceptual diagram which shows the other example of the lighting fixture which concerns on this invention. It is a conceptual diagram which shows the other example of the lighting fixture which concerns on this invention. It is a conceptual diagram which shows the other example of the lighting fixture which concerns on this invention.

  Then, the illuminating lamp based on this invention and the lighting fixture 10 using the same are demonstrated with reference to figures.

FIG. 1 is a conceptual diagram showing an example of a lighting fixture 10 according to the present invention.
This luminaire 10 is used as a general luminaire, and is not particularly limited in its place of use. Therefore, it can be used for living rooms, hallways, toilets, offices, factories, stores, and the like. Moreover, since it functions also as a substitute for a fluorescent lamp, a part of an existing fluorescent lamp fixture can be used as a part of the lighting fixture 10.

  A lighting fixture 10 shown in FIG. 1 includes a fixture main body 12, an illumination lamp 20 made of a light emitting element, and a power supply circuit 50 for applying a drive voltage or the like to the illumination lamp 20.

  A pair of sockets (connectors) 14 </ b> A and 14 </ b> B are attached to the lower surface of the instrument body 12 at the left and right ends thereof. The sockets 14A and 14B have both functions of holding the illumination lamp 20 and applying voltage. Accordingly, two sockets are usually provided in parallel in the sockets 14A and 14B corresponding to the pair of cap pins provided in the illuminating lamp 20, and function as input terminals for the power supply. The instrument main body 12 can be diverted from that used for fluorescent lamps, or of course, a dedicated instrument main body 12 can be used.

  The illuminating lamp 20 is a straight tube type, and is configured as the same size and the same size as a current fluorescent lamp. Therefore, it is composed of a straight tube type cylindrical tube 21 having a predetermined length and caps 22A and 22B attached to both ends of the cylindrical tube 21, and a pair of cap pins 23a and 23b project by a predetermined length from the caps 22A and 22B. To be provided. The cap pins 23a and 23b are inserted into the sockets 14A and 14B so that they are fixed to the instrument body 12 and supplied with power from the instrument body 12.

  The illumination lamp 20 uses a light emitting element 25 (see FIG. 2). As the light emitting element 25, currently mainstream LED elements (hereinafter referred to as LEDs) are used. A plurality of LEDs 25 are connected in cascade so as to have a predetermined illuminance. Details will be described later.

  The instrument body 12 is provided with a power supply circuit 50. The power supply circuit 50 supplies power to the illumination lamp 20. The power supply circuit 50 has a built-in control circuit composed of a microcomputer, the function of which will be described later. Since the LED 25 is dc lit, a positive power line (power terminal) 50a and a negative power line (power terminal) 50b are drawn from the power circuit 50 and connected to the sockets 14A and 14B, respectively. In the illustrated example, positive DC power is supplied to the right socket 14A, and negative DC power is supplied to the left socket 14B.

  FIG. 2 is a block diagram showing an example of the illumination lamp 20 according to the present invention. As the illumination lamp 20, a light emitting lamp 22 including a plurality of light emitting elements 25 is used. As described above, the light emitting element 25 is an LED which is currently mainstream. In order to obtain a predetermined illuminance, a plurality of LEDs are connected in cascade.

  In this example, an example in which two LEDs 25 further connected in parallel as one set are further connected in cascade. This is because, by simply connecting a single LED 25 in series, even if one of the LEDs cannot be energized for some reason, all the LEDs are not lit at all. In order to eliminate this, even if one or a plurality of LEDs fail, it is turned on and functions as an illuminating lamp. The LED 25 connected in parallel is connected in cascade.

Of the LEDs 25 connected in cascade, the first rectifier circuit 30 is connected to the first LED 25a side, and the second rectifier circuit 40 is connected to the final LED 25n side.
The light-emitting lamp 22 composed of a plurality of light-emitting elements 25 and the first and second rectifier circuits 30 and 40 are mounted on a printed circuit board (not shown) that is the same or divided into a plurality of parts. Fixed inside. A reflection plate or the like for reflecting light toward the room can be provided in the cylindrical tube 21.

  The first and second rectifier circuits 30 and 40 have the same configuration, and a bridge circuit including four diodes is used. The first rectifier circuit 30, the LED 25 as the light-emitting lamp 22, and the second rectifier circuit 40 are selected for mutual connection so that their current directions coincide with each other to form one series circuit. Specifically, the connection is as follows.

Of the terminals derived from the connection midpoints p, q, r, and s of the first rectifier circuit 30, the cathode terminals of a pair of diodes constituting the first rectifier circuit 30 with respect to the anode terminal of the LED 25a in the first stage. The anode terminal of the LED 25 a is connected to the connection midpoint p of the first rectifier circuit 30 so that both sides are in series with this.
On the other hand, the connection midpoint q of the first rectifier circuit 30 is connected to the final-stage cathode terminal side so that the final-stage LED 25n is in series with the cathode terminal. Accordingly, the pair of connection midpoints p and q both function as internal terminals, and the remaining pair of connection midpoints r and s are used as the external terminals 1 and 2.

  The connection of the second rectifier circuit 40 is the same idea as the first rectifier circuit 30. Therefore, first, the anode terminal of the LED 25n is connected to the second rectifier circuit 40 so that the cathode terminals of the pair of diodes constituting the second rectifier circuit 40 are in series with the anode terminal of the LED 25a at the first stage. Are connected to the connection midpoint p.

  The connection middle point q of the second rectifier circuit 40 is connected to the final-stage cathode terminal side so that the final-stage LED 25n is in series with the cathode terminal. Accordingly, the pair of connection midpoints p and q both function as internal terminals (internal connection terminals) for the LED 25, and the remaining pair of connection midpoints r and s function as external terminals 3 and 4.

The conduction state when connected in such a relationship will be described below.
(1) When Plus Power Supply is Connected to External Terminal 1 A description will be given with reference to FIG. In this case, the negative power source is connected to one of the external terminals 3 and 4 in the configuration of FIG. The current from the external terminal 1 flows through the LED 25 as indicated by arrow a → arrow b (solid line arrow) or arrow a → arrow c (chain line arrow). That is, if a negative power supply line (power supply terminal 50b) is connected to any of the internal supply terminals that are insertion ports in the other socket 14B, the LED 25 is turned on.

  The connection method of the power supply line to the sockets 14A and 14B may be different from that in FIG. For example, this is the case where the positive and negative power supply lines are connected only to the internal supply terminal of one socket 14A. In this case, since the current from the external terminal 1 flows to the external terminal 2 via the LED 25 as indicated by arrow a → arrow d (broken line arrow), the LED 25 is turned on and lit even in such a connection example.

In any case, the LED 25 can be properly lit by simply inserting the cap pins 23a and 23b into the sockets 14A and 14B without worrying about the polarity.
(2) When Plus Power Supply is Connected to External Terminal 4 FIG. 3 is a conduction example when it is assumed that a plus power supply line (power supply terminal 50a) is connected to the second rectifier circuit 40 side. Also in this case, a negative power source is connected to one of the external terminals 1 and 2 in the configuration of FIG. The current from the external terminal 4 flows as indicated by arrow e → arrow f or arrow e → arrow g. That is, if a negative power supply line (power supply terminal 50b) is connected to any of the internal supply terminals in one socket 14A, a current path through the LED 25 is formed and the LED 25 is lit.

  A case where the method of connecting the power supply line to the sockets 14A and 14B is different from that shown in FIG. For example, this is a case where positive and negative power supply lines (power supply terminals 50a and 50b) are connected to the internal supply terminal of the other socket 14B. In this case, since the current from the external terminal 4 flows to the external terminal 3 through the arrow e → the arrow h, the LED 25 is turned on and lit even in such a connection example.

  Even in this case, the LED 25 can be properly lit by simply inserting the cap pins 23a and 23b into the sockets 14A and 14B without worrying about the polarity.

FIG. 4 shows an example of the power supply circuit 50 provided in the lighting fixture 10.
This example shows a case where the illumination lamp 20 can be used as an emergency light at the time of a power failure. Therefore, as the power supply circuit 50, in addition to the power supply unit (LED power supply circuit) 52 for the illumination lamp 20, an emergency use is provided. A charging power supply circuit 54 is provided as a power supply unit.

  An AC power supply (about 90 to 240 volts) is supplied to the LED power circuit 52 via the power switch SW, and the LED 25 is stepped down to a voltage at which the LED 25 can be lit, and as a constant current source so that the LED 25 can be driven with a constant current It is configured. The power supply voltage is supplied to the positive power supply terminal 50a via the reverse current blocking diode 62 and the step-down resistor 63. In order to pass a necessary current (approximately 850 mA current to obtain an illuminance of about 25 watts) to the illuminating lamp 20, a predetermined voltage (DC drive voltage, which is 27 volts in this example) is applied to the positive power supply terminal 50a. Degree) is output. In this example obtained between the positive power supply terminal 50a and the negative power supply terminal 50b, a drive voltage of about 27 volts is supplied to both ends of the illuminating lamp 20.

  A predetermined voltage is supplied from the LED power supply circuit 52 to the charging power supply circuit 54 constituting the power failure circuit 70 via the backflow prevention diode 72, and the rechargeable battery 76 is charged with the supplied voltage. In this example, three lithium batteries are used as the rechargeable battery (secondary battery) 76, and an emergency voltage of about 27 volts is obtained. This emergency voltage is led to the positive power supply terminal 50a through the transistor 64 functioning as a switching element, the current limiting resistor 66, and the reverse current blocking diode 67.

  The switching transistor 64 is controlled to be turned on and off by a switching signal from the power failure switching circuit 74.

  A control circuit 60 composed of a microcomputer is provided in association with the LED power supply circuit 52 described above. The control circuit 60 includes a communication port 60a for performing communication with the outside, and a signal related to ON / OFF of the power switch SW is supplied as a signal for adjusting dimming.

  Arbitrary signals are supplied to the communication port 60a from among sensor outputs from human sensors, detection signals associated with power failure detection, and timer signals for setting the lighting time and extinguishing time of the illuminating lamp 20. Is output from the control circuit 60, and the LED power supply circuit 52 is controlled.

  When a detection signal associated with a power failure is input, a switching control signal is supplied from the control circuit 60 to the power failure switching circuit 74, and a switching signal is generated based on the switching control signal to control the switching transistor 64. The switching transistor 64 may be directly controlled from the control circuit 60.

  A power failure state cannot be detected by turning on / off the power switch SW. This is because normal power-off and power failure cannot be distinguished. Therefore, in this example, the power failure detection circuit 80 is connected to the outlet 82 connected to the AC power supply 44, and the power failure detection circuit 80 detects the presence or absence of the power failure. The power failure detection circuit 80 has a transmission function, and a power failure detection signal obtained when a power failure is detected is received by a receiver 90 provided in the power supply circuit 50. Both the power failure detection circuit 80 and the receiver 90 are provided with backup batteries 81 and 91. A backup for the receiver 90 is obtained from the rechargeable battery 76.

  Since the power failure detection signal received by the receiver 90 is input to the control circuit 60 via the communication port 60a described above, the power failure processing as described above is performed. That is, since the switching transistor 64 is turned on at this time, the charging voltage of the rechargeable battery 76 is supplied to the positive power supply terminal 50 a instead of the voltage of the LED power supply circuit 52. The current value of the current limiting resistor 66 is limited to a value significantly lower than that in the normal state, but the illumination lamp 20 remains on without being turned off. Therefore, at the time of a power failure, the illumination lamp 20 and the luminaire 10 can be used as an emergency lamp.

  In this example, since it is designed to be limited to about 100 mA, the brightness of the illuminating lamp 20 becomes considerably dark. However, it is important to ensure light during a power failure, and since it is necessary to keep the lighting state for a certain period of time, the brightness is limited. According to the experiment, the light can be secured for about 2 hours.

  This is a human sensor signal supplied to the communication port 60a described above. When this lighting device 10 is used as a lighting device such as a corridor or a toilet, the human sensor is located near the toilet or at the entrance of the corridor. Since the illumination lamp 20 can be automatically controlled to be turned on / off, it is possible to save power. The sensor output is transmitted to the communication port 60a via a cable.

The dimming function will be described.
In this example, dimming is performed using an on / off operation of the power switch SW. For example, the control circuit 60 determines that the off-on operation has been performed within a predetermined time (set time T) after the on-operation is once performed, and the LED power supply circuit 52 has a current value according to the number of repetitions. Is controlled. An example of four-stage dimming will be described with reference to FIG.

When the predetermined time T is selected as 2 seconds, if it is once turned on and left as it is as shown in FIG. 5A, it becomes the first dimming level, for example, maximum brightness (for example, 25 W).
On the other hand, as shown in FIG. 5B, when the power is turned off within 2 seconds and then turned on again (first off / on operation), the second brightness (second light control level, for example, 20W), the LED power supply circuit 52 is controlled so as to reduce the value of the current supplied to the illuminating lamp 20, and this dimming state continues.

  On the other hand, as shown in FIG. 5C, if an off / on operation is further performed within 2 seconds after the on-time (second off-on operation), the third brightness (the third dimming level) For example, the light is adjusted to 15W). Similarly, when the on / off operation is further performed within 2 seconds (FIG. 5D), the light is adjusted to the lowest brightness (fourth light control level, for example, 10 W). Thereafter, the original brightness (25 W) is restored by an off-on operation.

  The dimming process by the trickle operation can be achieved only by turning on / off the power switch SW. Even if the power switch SW is finally turned off, the previous dimming state is memorized, so that when the power switch SW is turned on next time, the brightness adjusted immediately before is obtained.

  Even if the on / off operation is continued within the set time of 2 seconds, the light control related to the number of on / off operations can be realized. Since dimming is performed in association with the ON / OFF operation of the power switch SW, no special parts or circuits for dimming are required.

  FIG. 6 is an example of generating a control signal (control data) supplied to the communication port 60 a provided in the control circuit 60 of FIG. 1, and the dimmer 85 and the human sensor 86 separately from the lighting fixture 10. A program timer 87 is provided. These can be selected depending on where the luminaire 10 is installed. The dimmer 85 can be provided regardless of the installation location, but the program timer 87 or the like may not be required when it is installed in a corridor or a toilet. The dimmer 85, the human sensor 86, and the like are all provided at predetermined locations in the room (locations that are easy to set and locations that are easy to detect).

  The communication medium may be wireless communication. In this case, a centralized controller is provided to handle the dimming level and the program data timer for setting the lighting and extinguishing times all together.

  Another example according to the present invention shown in FIG. 7 is a case where a control system for using the illumination lamp 20 as an emergency lamp is used externally. This is because it is not necessary to incorporate this control system in all the luminaires 10, and it may be selectively provided only when it is installed at a necessary location.

  The same parts as those in FIG. 1 are denoted by the same reference numerals, and the description thereof is omitted. In this example, the power failure circuit 70 shown in FIG. 1 has an external configuration separated from the power supply circuit 50 and is attached to the instrument body 12.

  FIG. 8 shows a specific example when the power failure circuit 70 has an external configuration. Similarly to FIG. 1, the power failure circuit 70 includes a charging power circuit 54, a rechargeable battery (secondary battery) 76 using a lithium battery, a power failure switching circuit 74, and a power failure detection signal receiver 90.

  The AC power source taken out from the subsequent stage of the power switch SW is led to the charging power source circuit 54 constituting the power failure circuit 70, and the rechargeable battery (secondary battery) 76 is charged by this charging power source. The charging voltage of the secondary battery is led to the positive power supply terminal 50a through the transistor 64, which is a switching element, the current limiting resistor 66, and the reverse current blocking diode 67.

  On the other hand, a power failure detection circuit 80 is connected to the outlet 82 connected to the AC power supply 44 to detect the presence or absence of a power failure. The reason why the power failure detection circuit 80 is not associated with the power switch SW is to reliably distinguish between power failure and power on / off due to switch operation.

  Also in this example, the power failure detection circuit 80 includes a transmission means (transmitter), and the power failure detection signal is transmitted to the receiver 90 wirelessly. The power failure switching circuit 74 is controlled by the power failure detection signal received by the receiver 90. In the power failure switching circuit 74, the on / off state of the switching transistor 64 is controlled. When the power failure detection signal is received, the switching transistor 64 is turned on and the emergency drive power is applied to the positive power supply terminal 50a. Thus, a predetermined power can be supplied to the illuminating lamp 20 even during a power failure, and the luminaire 10 can be utilized as an emergency luminaire.

  The power failure switching circuit 74 is equipped with a small-scale microcomputer. This determines whether or not the power failure detection signal is an instantaneous power failure such as a power failure, and the power failure circuit 70 does not operate in the case of a power failure. Therefore, in this case, a temporary power failure occurs, but the power failure circuit 70 operates in the case of a power failure longer than the instantaneous power failure. The power failure detection circuit 80 can be mounted on the microcomputer used for the instantaneous power discrimination. Needless to say, the power failure circuit 70 can be configured to cope with the electrical shortage.

  FIG. 9 and subsequent figures show another embodiment of the lighting fixture 10 according to the present invention, which is an application example when a plurality of lighting fixtures 10 are installed in a room or the like. In this case, since the central control is preferable, the central controller 100 is installed in an appropriate place such as a wall as shown in FIG. The central controller 100 and each lighting fixture 10 In this example, the four lighting fixtures 10A to 10D are coupled by a signal cable 102.

  In addition to the on / off function of the lighting fixture 10 itself, the centralized controller 100 is equipped with functions that can achieve functions that should be centrally controlled, such as a dimming function, a timer function, and a power failure monitoring function as described above. .

  A connection form other than the signal cable 102 is also conceivable between the centralized controller 100 and each luminaire 10. For example, they can be connected to each other by optical communication as shown in FIG. In this case, the central controller 100 is provided with an optical transmission means (light projector or light emitter) 103 and a light receiver 106, whereas each lighting fixture 10 is provided with a light receiver 104 and a light projector 105.

  The control signal (light signal) emitted from the centralized controller 100 can include identification information for identifying the lighting fixture 10. This is to control individually. For example, it is useful when adjusting the brightness of a lighting fixture near the window and a lighting fixture on the back side.

  In the case of a control signal having identification information, the light is received and identified by the first-stage lighting fixture 10A, and then the control signal is transmitted from the first-stage lighting fixture 10A to the adjacent lighting fixture 10B. This process is sequentially executed in the other lighting fixtures 10C and 10D. As a result, only the luminaire 10 whose identification information matches is executed in response to this control signal.

  In the case of a control signal without identification information, it is transmitted to all the lighting fixtures 10 at the same time, and all the lighting fixtures 10 perform the same control. In this case, a projector is connected to each lighting fixture 10. There is no need to provide it.

  FIG. 11 shows an example of wireless centralized control. While the centralized controller 100 is provided with a transmitter, each lighting fixture 10 is provided with its receivers 90A to 90D. A case where the control signal includes the identification information described above and a case where the control signal does not include the identification information are considered. As a result, it is possible to select whether to control individually or collectively.

  The present invention can be applied as a lighting fixture to replace a fluorescent lamp.

DESCRIPTION OF SYMBOLS 10 ... Lighting fixture 12 ... Appliance main body 14A, 14B ... Socket 20 ... Illuminating lamp 23a, 23b ... Base pin 25 ... LED which is a light emitting element
25a ... First stage LED
25n ... Final LED
30, 40... First and second rectifier circuits p, q, r, s... Connection midpoints 1 to 4... External terminal 50... Power supply circuits 50 a and 50 b. ... LED power circuit 54 ... charging power circuit 60 ... control circuit 76 ... rechargeable battery 74 ... power failure switching circuit SW ... power switch

Claims (7)

A plurality of light emitting elements connected in cascade;
A first rectifier circuit connected to the anode side of the light emitting element of the first stage;
An illuminating lamp comprising: a second rectifier circuit connected to a cathode side of a light emitting element in a final stage.   The illuminating lamp according to claim 1, wherein the light emitting element is an LED. The first and second rectifier circuits are bridge circuits, each having a pair of external terminals and internal terminals,
The internal terminal of the first rectifier circuit is connected to the anode side of the first-stage light emitting element,
The illuminating lamp according to claim 2, wherein an internal terminal of the second rectifier circuit is connected to a cathode side of the light emitting element at the final stage. An instrument body;
The illuminating lamp according to claims 1 to 3, attached to the instrument body,
A luminaire comprising a power supply circuit supplied to the illuminating lamp. The power supply circuit has a power supply circuit for an illumination lamp having a constant current source configuration for supplying power to the illumination lamp,
A control circuit composed of a microcomputer is related to the power supply circuit for the lamp,
The control circuit is provided with a communication port capable of receiving any signal among a control signal for dimming, a power failure detection signal, a sensor signal from a human sensor, and a control signal for adjusting a lighting time. The lighting fixture according to claim 4. A switch for turning on and off the lighting fixture is provided,
5. The illumination according to claim 4, wherein when the switch is turned on / off within a predetermined time after the on operation, the dimming level is controlled in accordance with the number of repetitions of the on / off operation. Instruments. An emergency power supply circuit for applying a driving voltage to the lighting lamp at the time of a power failure, a charging circuit for charging the emergency power supply circuit, and a power failure circuit comprising a power failure switching circuit are provided,
The emergency voltage of the emergency power supply circuit is applied as a drive voltage to the illumination lamp when a signal that detects a power failure state of an AC power supply is supplied to the power failure circuit. 4. The lighting apparatus according to 4.

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