JP2007173120A - Lighting system and lighting fixture provided with the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To easily reduce a color drift of a mixed color light and a timing deviation of a color change based on a controlling pattern at a low cost without a correction control by a sensor detection or an adjustment during a manufacturing process. <P>SOLUTION: In the case a light volume ratio of a green LED 31 is 1.3, and a light volume ratio of a red LED 30 and a blue LED32 are 0.7, a green LED 31 is lit firstly by pushing several times an LED button 422 of a remote control transmitter 42. Then, after a darkening button 425 is pushed to change from 70% to 54% on duty at the maximum light output, a memory button 426 is pushed to be stored in a color changeable direction control part 7. On the other hand, after the red LED 30 or the blue LED 32 is lit, a lighting button 424 is pushed to change from 70% to 100% on duty at the maximum light output, and the memory button is pushed to memorize in the color changeable direction control part 7. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an illuminating device that generates mixed color light by controlling a plurality of effect light sources that output different colored light, and a luminaire including the same.

  Conventionally, this type of lighting fixture is a ceiling light for homes, for example, and has a configuration including a plurality of light emitting diodes that output red light, green light, and blue light, respectively, separately from the main light source for lighting. .

As an example of the above-described conventional lighting apparatus, Patent Document 1 discloses a light control device that performs light control of a plurality of light sources that output different colored lights (light emission colors), and a color mixture obtained by mixing each colored light. A light control unit that receives a light setting value signal as a wireless medium signal, sends a signal to the light control device, and controls the light control device, and a light color / light amount that inputs the light color / light amount setting value of the mixed color light Disclosed is a variable color illumination system (lighting fixture) that includes a setting unit and a remote controller unit that includes a sensor that detects the light color / light quantity of mixed color light and transmits a detection value or a setting value to a dimming control unit. Yes. The variable color illumination system of Patent Document 1 compares the setting value input to the light color / light quantity setting unit with the detection value detected by the sensor, and adjusts the mixed color light so as to eliminate the deviation between the setting value and the detection value. I do.
Japanese Patent Laid-Open No. 5-21168 (pages 3 to 6 and FIG. 1)

  However, the conventional lighting fixture has a problem that the light color / light quantity detection sensor is expensive and the program for performing the arithmetic processing becomes complicated, so that it takes time and cost for development. In addition, the conventional lighting fixture includes light from other than the plurality of light sources by the light color / light quantity detection sensor when the main light source is turned on at the same time, or when external light or other illumination is in the surroundings. Since the light color / light quantity is detected, there is a problem that the adjustment of the mixed color light is shifted as a result.

  The present invention has been made in view of the above points, and an object thereof is based on color misregistration of mixed color light and a control pattern without performing correction control by sensor detection or adjustment in a manufacturing process. An object of the present invention is to provide a lighting device and a lighting fixture including the same that can easily and inexpensively reduce a shift in timing of color change.

  The invention according to claim 1 is an illuminating device that controls a main light source for illumination and a plurality of effect light sources that output different colored light, and each of the plurality of effect light sources is determined in advance. Variable color effect control means for generating mixed color light from a plurality of the colored light by controlling based on the control pattern, and outputting the colored light individually to each of the plurality of effect light sources, Manual adjustment means for manually adjusting and fixing the maximum light output of each of the plurality of effect light sources in accordance with the output state of the light and the mixed color light.

  In this configuration, the user can manually adjust and fix the maximum light output of each of the plurality of effect light sources while actually confirming the mixed color light and each color light, so that correction control by sensor detection or Without adjustment in the manufacturing process, it is possible to easily and inexpensively reduce the color shift of the mixed color light and the shift of the color change timing based on the control pattern. Further, even when the main light source is turned on, it is possible to reduce the color shift of the mixed color light and the timing of the color change without being affected by the illuminance of the main light source.

  The invention according to claim 2 is the invention according to claim 1, wherein the manual adjustment means is a remote control transmitter. In this configuration, even if the lighting device is out of the reach of the user, it can be easily adjusted by the remote control transmitter.

  According to a third aspect of the present invention, in the first or second aspect of the present invention, the plurality of effect light sources includes a red light emitting diode that outputs red colored light and a green light emitting diode that outputs green colored light. And a blue light emitting diode that outputs blue colored light. In this configuration, a large amount of mixed color light can be generated by the red, green, and blue colored light.

  According to a fourth aspect of the present invention, in the invention of the third aspect, the manual adjustment unit controls on-duties of power supply outputs to the red light emitting diode, the green light emitting diode, and the blue light emitting diode. It is characterized by that. In this configuration, since the maximum light output can be manually adjusted without changing the maximum allowable power for each light emitting diode, the lifetime of each light emitting diode can be maintained long.

  The invention according to claim 5 is the invention according to claim 4, wherein the manual adjustment means controls the on-duty so that the maximum light of the red light emitting diode, the green light emitting diode and the blue light emitting diode is obtained. The output is set to a predetermined reference value. In this configuration, it is possible to reduce the influence due to the variation of each light emitting diode.

  The invention according to claim 6 is the invention according to claim 5, characterized in that an initial state of the on-duty at the time of the maximum light output is 60 to 80%. With this configuration, it is possible to efficiently cope with either the case where the light output of each light emitting diode is too large or the case where the light output is too small.

  The invention according to claim 7 is the invention according to any one of claims 1 to 3, wherein the manual adjustment means controls the magnitude of the power supply output to the plurality of effect light sources. . In this configuration, the maximum light output of each light emitting diode can be easily adjusted manually.

  The invention according to claim 8 is the invention according to any one of claims 1 to 3, wherein the manual adjustment means is a plurality of variable resistors each connected in series with any one of the plurality of effect light sources. It is characterized by that. In this configuration, the maximum light output of each light emitting diode can be easily adjusted manually.

  Invention of Claim 9 is controlled by the illuminating device in any one of Claims 1-8, the main light source for illumination controlled by the said illuminating device, and the said illuminating device, and each differs colored light And a plurality of light sources for production.

  In this configuration, the user can manually adjust and fix the maximum light output of each of the plurality of effect light sources while actually confirming the mixed color light and each color light, so that correction control by sensor detection or Without adjustment in the manufacturing process, it is possible to easily and inexpensively reduce the color shift of the mixed color light and the shift of the color change timing based on the control pattern. Further, even when the main light source is turned on, it is possible to reduce the color shift of the mixed color light and the timing of the color change without being affected by the illuminance of the main light source.

  According to the present invention, it is possible to easily and inexpensively reduce color shift of mixed color light and color change timing shift based on a control pattern without performing correction control by sensor detection or adjustment in a manufacturing process. .

(Embodiment 1)
A first embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a block diagram illustrating a configuration of a lighting fixture according to the first embodiment. 2A and 2B are main parts of the lighting apparatus of Embodiment 1, wherein FIG. 2A is a side view and FIG. 2B is a bottom view. FIG. 3 is a main part circuit diagram of the lighting apparatus of the first embodiment. FIG. 4 is a diagram illustrating the operation of the switching element of the variable color effect control unit in the lighting apparatus of the first embodiment. FIG. 5 is a diagram showing the on-duty and light quantity ratio of each light emitting diode with respect to time when the lighting fixtures of Embodiment 1 are not varied (a) and (b), and (c) and (d). It is a figure which shows on-duty and light quantity ratio in case there exists dispersion | variation. In FIG. 3, only two LED boards are shown and the rest are omitted. However, even if the number of LED boards increases, they are connected in parallel in the same manner as shown.

  First, the basic configuration of the first embodiment will be described. The lighting fixture 1 of Embodiment 1 is a ceiling light for homes, for example, and as shown in FIG. 1, a main light source 2, four production light source groups 3, 3, 3, 3, a lighting device 4, An appliance main body 5 (see FIG. 2A) and a shade 6 (see FIG. 2A) are provided and connected to an AC power source AC. The AC power supply AC is, for example, a commercial power supply of 100V. In addition, the lighting fixture 1 is not limited to the ceiling light for housing | casings, A bracket may be sufficient and it may be for facilities use, a shop use, etc. instead of a house use.

  As shown in FIG. 2A, the instrument body 5 includes a lamp socket 50, a lamp support part 51, and a reflector (cover) 52, and an instrument mounting part (power connection part) 55 (FIG. 5B). )) Is attached to the ceiling surface L. On the other hand, the shade 6 engages with the instrument body 5 and covers the lower surface of the instrument body 5.

  The main light source 2 is a fluorescent lamp such as a double ring fluorescent lamp FHD100, and is mainly for illumination. The main light source 2 is fixed to the instrument body 5 by being supported by a lamp support portion 51 in a state where the lamp base 20 is joined to the lamp socket 50. The main light source 2 is not limited to a fluorescent lamp, and may be an incandescent lamp.

  As shown in FIG. 1, each effect light source group 3 includes three effect light sources that output different colored light as one package. The three effect light sources are three chips of a red light emitting diode (hereinafter referred to as “red LED”) 30, a green light emitting diode (hereinafter referred to as “green LED”) 31, and a blue light emitting diode (hereinafter referred to as “blue LED”) 32. It is.

  The illumination device 4 includes an inverter unit 40, four LED boards 41, 41, 41, 41, a remote control transmitter 42, and a remote control reception unit 43, and includes a main light source 2, a red LED 30, a green LED 31, and a blue LED 32. It is something to control.

  The inverter part 40 is attached to the reflecting plate 52 of the instrument body 5 as shown in FIG. Moreover, the inverter part 40 has connected the power input terminal with the power connector (not shown) installed in the ceiling surface L (refer Fig.2 (a)). As shown in FIG. 1, the inverter unit 40 is supplied with AC power from an AC power source AC. The circuit system of the inverter unit 40 is a combination of a boost chopper circuit and a half bridge inverter.

  On each LED board 41, as shown in FIG. 3, a red LED 30, a green LED 31, and a blue LED 32 are mounted in parallel. Each LED board 41 is mounted with current-limiting resistors 44r, 44g, 44b that are connected in series with the LEDs 30, 31, 32. As shown in FIG. 2B, each of the LED substrates 41 is attached to each of the four LED portions 54, 54, 54, 54 provided on the outer peripheral frame 53 of the instrument body 5. A cover 540 is attached to the front surface of each LED board 41 while being attached to the LED section 54. Thereby, each colored light diffuses.

  As shown in FIG. 1, the remote control transmitter 42 includes a full light button 420, a dimming button 421, an LED button 422, a turn-off button 423, a light button 424, a dark button 425, and a storage button 426. I have. When the user operates the remote control transmitter 42 and the full light button 420 is pressed, the main light source 2 is fully turned on. When the dimming button 421 is pressed, the main light source 2 enters the dimming state, and the bright button 424, When the dark button 425 is pressed, the dimming level of the main light source 2 is changed. In addition, when the LED button 422, the bright button 424, and the dark button 425 are pressed by the user, the remote control transmitter 42 controls the LEDs 30, 31, 32, and individually controls the plurality of LEDs 30, 31, 32. Manual adjustment that outputs red light, green light, and blue light, and manually adjusts and fixes the maximum light output of each LED 30, 31, 32 according to the output state of the red light, green light, blue light, and mixed light Means.

  The remote control receiver 43 includes a light receiving module 430, a control main microcomputer 431, and a variable color effect controller 7. The light receiving module 430 receives a transmission signal such as an infrared ray transmitted from the remote control transmitter 42. The control main microcomputer 431 sends a control signal to the inverter unit 40 in accordance with the signal code received by the light receiving module 430, and performs control such as turning on, turning off, and dimming the main light source 2. Further, the control main microcomputer 431 sends a control signal to the variable color effect control unit 7 in accordance with the signal code received by the light receiving module 430.

  As shown in FIG. 3, the variable color effect control unit 7 includes an LED control sub-microcomputer 70, an EEPROM 71, duty control switches 72r, 72g, 72b, switching elements 73r, 73g, 73b, and a three-terminal regulator 74. The light output of each LED 30, 31, 32 is controlled based on a predetermined control pattern to generate mixed color light from red light, green light and blue light. The LED control sub-microcomputer 70 performs lighting control of the LEDs 30, 31, and 32 such as continuous color change (see FIG. 5A), color fixed output, and dimming according to a pre-programmed control pattern. Note that the functions of the control main microcomputer 431 and the LED control sub-microcomputer 70 may be combined and realized by a single microcomputer. The duty control switches 72r, 72g, 72b are npn-type bipolar transistors, and are connected in series with the LEDs 30, 31, 32 and the current-limiting resistors 44r, 44g, 44b between the power supply voltage Vcc and the ground, and are switching elements. The LED control sub-microcomputer 70 is connected to the output terminals 75r, 75g, and 75b via 73r, 73g, and 73b. The switching elements 73r, 73g, and 73b are pnp bipolar transistors. The three-terminal regulator 74 is connected to the capacitor 740 at one end and connected to the capacitor 741 at the other end.

  The operation of the variable color effect control unit 7 will be described with reference to FIGS. When the control signals from the output terminals 75r, 75g, and 75b of the LED control sub-microcomputer 70 shown in FIG. 3 are at the L (low) level (see FIG. 4), the switching elements 73r, 73g, and 73b are turned on. Current flows through the bases of the duty control switches 72r, 72g, 72b, and the duty control switches 72r, 72g, 72b are also turned on. As a result, forward currents IFr, IFg, IFb flow through the LEDs 30, 31, 32, respectively. Here, the peak values IF-H of the forward currents IFr, IFg, IFb are determined by the power supply voltage Vcc and the current limiting resistors 44r, 44g, 44b. Further, the control signal from the LED control sub-microcomputer 70 is made constant in one cycle T0 (see FIG. 4), and the L level width TL (see FIG. 4) is changed from 0% to 100% with respect to T0. To control the effective current of the forward currents IFr, IFg, IFb from IF-H to 0. In this way, by programming the LED control sub-microcomputer 70 in advance so that the duty ratios of the LEDs 30, 31, and 32 become a predetermined ratio, a desired mixed color light and continuous color changing operation can be obtained.

  If the on-duty at the time of maximum light output in the initial state is 50% and the forward currents IFr, IFg, IFb at the time of maximum light output of the LEDs 30, 31, 32 are set to a predetermined magnitude, wider variations are possible. However, if the on-duty at the time of maximum light output is reduced, the resolution is lowered, so that it is difficult to obtain a smooth color change. On the other hand, if the on-duty at the maximum light output in the initial state is set to 100% and the forward currents IFr, IFg, IFb at the maximum light output of the LEDs 30, 31, 32 are set to a predetermined magnitude, the current increases. Although the light beam deterioration life is not deteriorated, the adjustment is made only in the direction in which the on-duty at the time of maximum light output is lowered. In addition, it is extremely rare that the maximum variation in the amount of light becomes ± 50%, and it is only necessary to be able to handle substantially ± 30%. From the above, it is preferable to set the on-duty at the maximum light output in the initial state to about 70%.

  Next, a case where continuous color change is performed using the red LED 30, the green LED 31, and the blue LED 32 in the lighting fixture of Embodiment 1 will be described with reference to FIG. It is assumed that the on-duty of the forward currents IFr, IFg, and IFb of the LEDs 30, 31, and 32 is substantially proportional to the effective value current and the light amount of the LEDs 30, 3, 1, and 32. FIG. 5A shows a control pattern in the case where the color is continuously changed by automatic circulation. The horizontal axis represents time t (sec) and the vertical axis represents on-duty (%), which indicates on-duty with respect to time change. Here, the on-duty at the maximum light output in the initial state is set to 70%, and the forward current IFg at the maximum light output (Full output) of each LED 30, 31, 32 (see FIG. 3) becomes a predetermined magnitude. Has been. Specifically, when the power supply voltage Vcc = 12 V and the resistance values of the current-limiting resistors 44r, 44g, 44b (see FIG. 3) of the LEDs 30, 31, 32 are 3 kΩ, 1.75 kΩ, and 750Ω, respectively, the forward current IFr , IFg, IFb are approximately 3.5 mA, 5.4 mA, and 12.3 mA in this order. The ratio (red LED: green LED: blue LED) of the light quantity (luminance) at this time is approximately 1: 3.3: 1.8. First, when the LED button 422 (see FIG. 1) of the remote control transmitter 42 is pressed, as shown in FIG. 5 (b), blue, light blue, green, yellow, red, purple, blue, and blue are repeated at intervals of 5 seconds. Lights up automatically in 30 seconds. On the other hand, every time the LED button 422 is continuously pressed, the mode changes to a fixed color or a continuous color change in a sequential manner such as blue, light blue, green, yellow, red, purple, and a continuous color change.

  Next, the light intensity variation due to the component variation of each LED 30, 31, 32 (see FIG. 3) will be described. Here, when the forward voltage of each LED 30, 31, 32 includes about ± 0.4V, the power source voltage Vcc is about ± 1V, and the resistance values of the current limiting resistors 44r, 44g, 44b include variations of ± 1%. Then, the forward currents IFr, IFg, IFb of the LEDs 30, 31, 32 vary up to about ± 15%, and depending on the color, the variation in luminous intensity at the rated current is up to about ± 33-48%. The maximum variation in luminous intensity is about ± 50 to 70% in calculation (assuming that the current and luminous intensity are in a substantially proportional relationship). However, there is almost no possibility of variation so far.

  Here, a case where the light quantity ratio of each LED 30, 31, 32 (see FIG. 3) varies by ± 30% will be described. For example, when the light quantity ratio of the green LED 31 is 1.3 and the light quantity ratio of the red LED 30 and the blue LED 32 is 0.7, the green color is dominant and bright compared to other colors, and the green color at the time of continuous color change. The time becomes longer, and there arises a problem that a color shift of mixed color light and a shift timing of a change from blue to light blue and from yellow to red occur. That is, color misregistration when colors are fixed at a predetermined color mixture ratio, unnatural appearance when changing colors, and the like occur. In the above case, first, the LED button 422 (see FIG. 1) of the remote control transmitter 42 is pressed several times to turn on the green LED 31. Thereafter, the dark button 425 (see FIG. 1) is pressed to change the on-duty at the maximum light output from 70% to 54% as shown in FIG. 5D, and the memory button 426 (see FIG. 1) is pressed. . Thereafter, the EEPROM 71 (see FIG. 3) stores information that the on-duty at the maximum light output of the green LED 31 is 54%. As a result, the on-duty at the time of maximum light output of the green LED 31 is 54%. On the other hand, the LED button 422 is pressed several times to turn on the red LED 30 or the blue LED 32. Thereafter, the bright button 424 (see FIG. 1) is pressed to change the on-duty at the maximum light output from 70% to 100%, and the memory button 426 is pressed. Thereafter, the EEPROM 71 stores information that the on-duty at the maximum light output of the red LED 30 and the blue LED 32 is 100%. Thereby, the on-duty at the time of the maximum light output of the red LED 30 and the blue LED 32 becomes 100%.

  From the above, it is possible to suppress variations in the light amount ratio of the LEDs 30, 31, and 32 as shown in FIG. In other words, it is possible to cope with either large or small variations.

  The LED control sub-microcomputer 70 is programmed in advance so that the operation of the green LED 31 when changing from blue to light blue at the time of continuous color change changes the on-duty from 0% to 54% in 5 seconds. Yes. In other words, depending on the on-duty at the time of maximum light output, the on-duty change speed is obtained by calculation in the case of changing from 0% to 70% in the same 5 seconds and in the case of changing from 0% to 54%. It has been programmed.

  As described above, according to the first embodiment, the user can manually adjust and fix the maximum light output of each LED 30, 31, 32 while actually checking the mixed color light and each colored light. Thus, it is possible to easily and inexpensively reduce the color shift of the mixed color light and the shift of the timing of the color change based on the control pattern without performing the correction control or the adjustment in the manufacturing process. Further, even when the main light source 2 is turned on, the color shift of the mixed color light and the shift of the color change timing can be reduced without being affected by the illuminance of the main light source 2. Furthermore, it can be arbitrarily adjusted according to the user's preference.

  In addition to the above, even if the main body side of the luminaire 1 is out of the reach of the user, it can be easily adjusted by the remote control transmitter 42. Further, since the red LED 30, the green LED 31, and the blue LED 32 are combined, a large amount of mixed color light can be generated by the red light, the green light, and the blue light. Further, by controlling the on-duty at the time of maximum light output of the supply voltage to each LED 30, 31, 32, the maximum light output is manually adjusted without changing the maximum allowable power for each LED 30, 31, 32. Since it can adjust, the lifetime of each LED30,31,32 can be maintained long.

  In addition, it is possible to reduce the influence due to the variation of the LEDs 30, 31 and 32. Further, by setting the initial state of the supply voltage to each LED 30, 31, 32 to 70%, the efficiency is improved in either case where the light output of each LED 30, 31, 32 is too large or the light output is too small. Can respond well.

(Embodiment 2)
A second embodiment of the present invention will be described with reference to FIG. FIG. 6 is a main part circuit diagram of the lighting apparatus of the second embodiment.

  Although the lighting fixture of Embodiment 2 is provided with the main light source 2 and the four light source groups 3, 3, 3, and 3 similarly to the lighting fixture of Embodiment 1 (refer FIG. 1), Embodiment There is a characteristic part described below which is not included in the lighting fixture 1.

  The lighting fixture of Embodiment 2 includes a power supply circuit unit 8 as shown in FIG. The power supply circuit unit 8 includes a diode bridge 80, resistors 81 and 82, a smoothing capacitor 83, and a Zener diode 84. Further, the power supply circuit unit 8 includes resistors 85r, 85g, and 85b, variable resistors 86r, 86g, and 86b, and smoothing capacitors 87r, 87g, and 87b for each of the LEDs 30, 31, and 32. The diode bridge 80 rectifies the AC voltage from the AC power supply AC. The resistors 81 and 82 divide the rectified voltage. The smoothing capacitor 83 smoothes the divided voltage of the resistors 81 and 82. The Zener diode 84 sets the smoothed voltage to a constant voltage. The variable resistors 86r, 86g, and 86b are provided with knobs (not shown), and reflect so that the user can operate the knobs when the shade 6 (see FIG. 2A) is removed. This is manual adjustment means having a structure in which a hole is made in the plate 52 (see FIG. 2A) and a knob protrudes. The smoothing capacitors 87r, 87g, 87b smooth the divided voltages of the resistors 85r, 85g, 85b and the variable resistors 86r, 86g, 86b. The smoothed voltages become the power supply voltages Vccr, Vccg, Vccb for the respective LEDs 30, 31, 32. In the second embodiment, independent power supply voltages Vccr, Vccg, Vccb are used for the respective LEDs 30, 31, 32.

  Moreover, the illuminating device 4a of Embodiment 2 is provided with the variable color effect control part 7a as shown in FIG. 6 instead of the variable color effect control part of Embodiment 1. FIG. The variable color effect control unit 7a fixes the on-duty of the LEDs 30, 31, and 32. The variable color effect control unit 7a is the same as the variable color effect control unit 7 (see FIG. 3) of the first embodiment except for the points described above.

  Next, the operation of the lighting fixture according to the second embodiment will be described. In the lighting device 4a, the power supply voltage Vccr for causing a current to flow through each LED 30, 31, 32 while the on-duty of each LED 30, 31, 32 is fixed. , Vccg, Vccb are changed to change the forward current of each LED 30, 31, 32 to adjust the light quantity.

  As described above, according to the second embodiment, the maximum light output of each LED 30, 31, 32 can be adjusted by turning the knob of each variable resistor 86r, 86g, 86b, and can be fixed by itself. The maximum light output of 32 can be easily adjusted manually. In the second embodiment, it is not necessary for the remote control transmitter 42 to include a memory button, so that an existing remote control transmitter can be used.

(Embodiment 3)
A third embodiment of the present invention will be described with reference to FIG. FIG. 7 is a main part circuit diagram of the lighting fixture of the third embodiment.

  Although the lighting fixture of Embodiment 3 is provided with the main light source 2 and the four light source groups 3, 3, 3, 3 similarly to the lighting fixture of Embodiment 1 (refer FIG. 1), Embodiment There is a characteristic part described below which is not included in the lighting fixture 1.

  The lighting device 4b of the third embodiment includes an LED board 41a and a variable color effect control unit 7b as shown in FIG. 7 instead of the LED board and the variable color effect control unit of the first embodiment. Unlike the LED substrate of the first embodiment, the LED substrate 41a does not include a current limiting resistor.

  On the other hand, the variable color effect control unit 7b includes three current limiting resistors 76r, 76g, and 76b, and fixes the on-duty and the power supply voltage Vcc. Each of the current limiting resistors 76r, 76g, 76b is a variable resistor connected in series with each of the LEDs 30, 31, 32. Each of the current limiting resistors 76r, 76g, and 76b is provided with a knob (not shown), and the user can operate the knob when the shade 6 (see FIG. 2A) is removed. As described above, the manual adjustment means has a structure in which a hole is formed in the reflection plate 52 (see FIG. 2A) and a knob protrudes. In the third embodiment, the resistance values of the current limiting resistors 76r, 76g, and 76b are adjusted for the respective LEDs 30, 31, and 32. The variable color effect control unit 7b is the same as the variable color effect control unit 7 (see FIG. 3) of the first embodiment except for the points described above.

  In the third embodiment, since the current limiting resistors 76r, 76g, and 76b are common to a plurality of LEDs for each color, it is desirable that the LEDs that output the same color are in the same lot (the same variation).

  Next, the operation of the lighting apparatus according to the third embodiment will be described. In the lighting device 4b, the resistance values of the current limiting resistors 76r, 76g, and 76b are maintained while the on-duty and the power supply voltage Vcc of the LEDs 30, 31, and 32 are fixed. Is changed to change the forward current of each LED 30, 31, 32 to adjust the light quantity.

  As described above, according to the third embodiment, the maximum light output of each LED 30, 31, 32 can be adjusted by turning the knob of each of the current limiting resistors 76r, 76g, 76b and can be fixed by itself. , 32 can be easily adjusted manually with a simpler configuration. In the third embodiment, since the remote control transmitter 42 does not need to include a memory button, an existing remote control transmitter can be used.

It is a block diagram which shows the structure of the lighting fixture and remote control transmitter of Embodiment 1 by this invention. It is a lighting fixture same as the above, Comprising: (a) is a side view, (b) is a bottom view. It is a principal part circuit diagram of the lighting fixture same as the above. It is a figure which shows operation | movement of the switching element of the variable color effect control part in a lighting fixture same as the above. FIG. 2 is a diagram illustrating the on-duty and light quantity ratio when there is no variation, and (c) and (d) are the on-duty and light quantity ratio when there is variation. FIG. It is a principal part circuit diagram of the lighting fixture of Embodiment 2 by this invention. It is a principal part circuit diagram of the lighting fixture of Embodiment 3 by this invention.

Explanation of symbols

30 Red light emitting diode 31 Green light emitting diode 32 Blue light emitting diode 42 Remote control transmitter 422 LED button 424 Bright button 425 Dark button 426 Storage button 7 Variable color effect control unit

Claims (9)

An illumination device that controls a main light source for illumination and a plurality of effect light sources each outputting different colored light,
Variable color effect control means for controlling each of the plurality of effect light sources based on a predetermined control pattern to generate mixed color light from the plurality of colored light;
The colored light is individually output to each of the plurality of effect light sources, and the maximum light output of each of the plurality of effect light sources is manually adjusted according to the output state of the color light and the mixed light. And a manual adjustment means for fixing the lighting device.   The lighting device according to claim 1, wherein the manual adjustment means is a remote control transmitter.   The plurality of effect light sources are a combination of a red light emitting diode that outputs red colored light, a green light emitting diode that outputs green colored light, and a blue light emitting diode that outputs blue colored light. The lighting device according to claim 1 or 2.   4. The lighting device according to claim 3, wherein the manual adjustment unit controls on-duties of power supply outputs to the red light emitting diode, the green light emitting diode, and the blue light emitting diode.   5. The manual adjustment means controls the on-duty to set the maximum light outputs of the red light emitting diode, the green light emitting diode, and the blue light emitting diode to predetermined reference values. The lighting device described.   The lighting device according to claim 5, wherein an initial state of the on-duty at the maximum output is 60 to 80%.   The lighting device according to any one of claims 1 to 3, wherein the manual adjustment unit controls a magnitude of a power supply output to the plurality of effect light sources.   The lighting device according to claim 1, wherein the manual adjustment unit is a plurality of variable resistors each connected in series with any of the plurality of effect light sources. The lighting device according to any one of claims 1 to 8,
A main light source for illumination controlled by the illumination device;
A lighting apparatus comprising: a plurality of effect light sources that are controlled by the lighting device and that output different colored light.

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