TW201325312A - Light emitting apparatus and dimming method - Google Patents

Abstract

A light emitting apparatus receives an external power and includes a light-emitting unit and a control unit. The light-emitting unit has at least one light emitting diode. The control unit is electrically connected with the light-emitting unit and controls the light-emitting element to emit a nonzero first brightness or a nonzero second brightness, or has a first color temperature or a second color temperature according to a receiving frequency or a switching interval of the external power during a pre-determined period when the control unit receives the external power.

Description

Light emitting device and dimming method

The present invention relates to a light emitting device and a method of dimming the same.

The illuminating device is one of the indispensable devices in modern life. The light source used in the illuminating device, for example, from the early incandescent lamp to the current fluorescent lamp and the illuminating diode lamp, has significant luminous efficiency and longevity. progress. Among them, unlike ordinary incandescent lamps, fluorescent lamps or power-saving bulbs, the light-emitting diodes have been characterized by low power consumption, low pollution, long service life, high safety, short luminous response time and small volume. Widely used in the manufacture of lighting or lighting devices.

In a conventional lighting device, such as indoor lighting in a briefing room, it is often necessary to turn off the illumination source when the briefing room performs the briefing, and the light source of the briefing room is often distributed in different areas of the plurality of lighting devices or lighting devices. In the power control, the briefing room is not completely dark, that is, the first half of the briefing room is completely dark, and the second half is fully lit. At this time, the audience in the bright area is quite difficult to watch the briefing, but in the dark area, the lecture is very difficult. It is difficult to take notes because of insufficient light. Therefore, the control of the illuminating brightness or the illuminating color of the illuminating device or the illuminating device is quite important.

Therefore, how to provide a illuminating device and a dimming method can achieve the purpose of controlling the illuminating brightness or illuminating color of the illuminating device, thereby facilitating the use and improving the competitiveness of the product, which is one of the current important topics.

In view of the above problems, an object of the present invention is to provide a light-emitting device and a light-adjusting method which can achieve the purpose of controlling the light-emitting luminance or the light-emitting color of a light-emitting device, and which are convenient to use and enhance the competitiveness of the product.

To achieve the above object, a light-emitting device according to the present invention receives an external power source and includes a light-emitting unit and a control unit. The light emitting unit has at least one light emitting diode. The control unit is electrically connected to the light-emitting unit. In a state in which the control unit receives the external power source, the control unit controls the light-emitting unit to have a brightness of a non-zero first brightness according to the number or interval of receiving the external power source within a specific time. Or a second brightness, or a first color temperature or a second color temperature.

In an embodiment of the invention, the light emitting unit has a plurality of light emitting diode modules, and the light emitting diode modules are connected in series or in parallel.

In an embodiment of the invention, the LED modules are respectively an AC LED module.

In an embodiment of the invention, the control unit changes the illumination brightness, the illumination color, the number of illuminations, the lighting sequence of the illumination unit, or changes the serial-parallel configuration of the LED modules.

In an embodiment of the invention, the light emitting device further includes: a first electrical connection component electrically connected to the external power source, the light emitting unit and the control unit, the first electrical connection component having two electrical input terminals.

In an embodiment of the invention, the illuminating device further comprises: a second electrical connecting component electrically connected to the external power source, the illuminating unit and the control unit, the second electrical connecting component having two electrical input terminals.

In an embodiment of the invention, the first electrical connection element and the second electrical connection element are respectively located at opposite ends of the light emitting unit.

In an embodiment of the invention, the electrical input ends of the first electrical connection component and the second electrical connection component respectively cooperate with a socket of a fluorescent tube.

In an embodiment of the invention, the light emitting device further includes: at least one impedance element electrically connected between the electrical input ends of the first electrical connection component, or the electrical properties of the second electrical connection component Between the inputs.

In an embodiment of the present invention, when the number of the impedance elements is two, one of the impedance elements is electrically connected between the electrical input terminals of the first electrical connection element, and the impedance elements are The other of the two is electrically connected between the electrical inputs of the second electrical connection element.

In an embodiment of the invention, the impedance element is a resistor, or an inductor, or a capacitor, or a diode, or at least one AC LED, or a combination thereof.

In an embodiment of the invention, the light emitting device further includes: at least one rectifying component having an output end electrically connected to the light emitting unit.

In order to achieve the above object, a dimming method according to the present invention includes the steps of: electrically connecting a light emitting unit and a control unit, wherein the light emitting unit has at least one light emitting diode; and the control unit is based on a specific time Receiving an external power source or the interval time, controlling the lighting unit to make the lighting unit have a first brightness or a second brightness having a brightness other than zero, or having a first color temperature or a state in a state in which the control unit receives the external power source The second color temperature.

In an embodiment of the invention, the light emitting unit has a plurality of light emitting diode modules, and the light emitting diode modules are connected in series or in parallel.

In an embodiment of the invention, the illumination unit, the illumination color, the number of illuminations, the illumination sequence or the serial-parallel configuration of the illumination unit are changed by the control unit.

According to the above aspect, the illuminating device and the dimming method thereof according to the present invention control the illuminating unit by the control unit according to the number or interval of receiving the external power source within a specific time, so that the brightness is not zero. Brightness or a second brightness, or having a first color temperature or a second color temperature. Therefore, the light-emitting device of the present invention can emit light with different light-emitting brightness or different light-emitting color to achieve the purpose of controlling the light-emitting brightness or the light-emitting color of the light-emitting device, thereby facilitating the use and improving the product competitiveness.

Hereinafter, a light-emitting device and a light-modulating method thereof according to a preferred embodiment of the present invention will be described with reference to the accompanying drawings, wherein the same elements will be described with the same reference numerals.

Please refer to FIG. 1, which is a schematic diagram of a light emitting device 1 according to a preferred embodiment of the present invention.

The light-emitting device 1 can receive an external power source. Here, the light-emitting device 1 receives an external power source by turning on a switch SW. The switch SW can be a transistor switch, a wall power switch or a remote switch. The switch SW is electrically connected to the light-emitting unit 11, the control unit 12, and the external power source, respectively, to switch between the external power source and the light-emitting unit 11 and the control unit 12 in an on state or an open state. When the switch SW is in the on state, the external power source is input to the light emitting unit 11 and the control unit 12, and when the switch SW is in the open state, the external power source cannot be input to the light emitting unit 11 and the control unit 12. In addition, the source of the external power source may be a mains power source, and its voltage may be, for example, 110 volts or 220 volts AC, and its frequency may be, for example, 50 hertz (Hz), 60 Hz, or a multiple thereof. In addition, the source of the external power source can also be an electronic ballast that drives a fluorescent lamp, or a coil ballast and starter, or a DC power source. Here, there is no limitation. In addition, it is particularly noted that the illuminating device 1 of the present invention is not limited to being compatible with conventional elongated fluorescent tubes, but only for replacing conventional fluorescent tubes. In other embodiments, the illuminating device 1 can also be substituted for other shapes of fluorescent tubes for another embodiment, such as a circular, mosquito-like, square or other shaped tube. Here, there is no limitation. However, in order to replace the conventional fluorescent tube, the appearance of the light-emitting device 1 can be made the same as that of the conventional fluorescent tube, and can be mounted to be engaged with the lamp holder of the conventional lamp.

The lighting device 1 comprises a lighting unit 11 and a control unit 12.

The light emitting unit 11 can have at least one light emitting diode. In addition, the light emitting unit 11 may also have a plurality of light emitting diodes or a plurality of light emitting diode modules. The light emitting diodes or the light emitting diode modules may be connected in series or in parallel. Additionally, the light emitting diodes may have the same or different luminescent properties or sizes. The luminescent property may be, for example, luminescent color, color temperature, power, or brightness, and the like, and is not limited thereto.

The control unit 12 is electrically connected to the light emitting unit 11. In addition, in a state where the control unit 12 receives the external power source, the control unit 12 controls the light-emitting unit 11 to have a brightness of a non-zero first brightness or a second according to the number of times or the interval of receiving the external power source within a specific time. Brightness, or having a first color temperature or a second color temperature. In other words, the control unit 12 can change the light-emitting brightness, the color of the light, the number of lights, the lighting order, or the series-parallel configuration of the light-emitting diode modules of the light-emitting unit 11.

The present invention is not limited to the length of a specific time, and may be set to, for example, 10 seconds or less depending on the user's usage habit or convenience. The specific time can be determined according to the circuit and the electronic components, for example, depending on the time during which one or more capacitors are charged and discharged.

In addition, the number of times the control unit 12 receives the external power source within a certain time, that is, the number of times the external power source is intermittently transmitted to the control unit 12 within a certain time. The external power source can be transmitted to the control unit 12 at intervals by the switch SW.

The interval at which the control unit 12 receives the external power source within a certain time, that is, the time interval between the external power source being transmitted to the control unit 12 twice or more times in a specific time, wherein in the case of multiple transmissions, the first time may be The time interval between the last transmission to the control unit 12 is the interval time.

The control unit 12 can control the light-emitting unit 11 to have a first brightness or a second brightness with a non-zero brightness, or have a first state, in a state where the control unit 12 receives the external power source according to the number of times the external power source is received within a specific time. Color temperature or second color temperature.

For example, in a case where the specific time is 3 seconds, if the control unit 12 receives the external power supply three times within 3 seconds, the third time the external power source is received, the light-emitting unit 11 is controlled to have a brightness other than zero. a brightness or a first color temperature (ie, a first illuminating color), the first brightness is, for example, one-third of the brightness of the full brightness, and the first color temperature is, for example, red light; and the control unit 12 receives the external power supply within five seconds. Then, when the external power source is received for the fifth time, the light-emitting unit 11 is controlled to have a second brightness or a second color temperature (ie, a second light-emitting color) whose brightness is not zero, and the second brightness is, for example, a two-point brightness of the full brightness. One, and the second color temperature is, for example, blue light.

In addition, the control unit 12 can control the light-emitting unit 11 to have a first brightness or a second brightness with a non-zero brightness when the control unit 12 receives the external power source according to the interval time of receiving the external power source within a specific time, or Has a first color temperature or a second color temperature. For example, in a case where the specific time is 3 seconds and the interval time is the interval at which the external power source is transmitted to the control unit 12 twice, the control unit 12 receives the external power supply twice within 3 seconds, and receives the two times. The interval time is 1 second, and when the external power source is received for the second time, the light-emitting unit 11 is controlled to have a first brightness or a first color temperature (ie, a first light-emitting color) whose brightness is not zero, and the first brightness is, for example, fully bright. One third of the brightness, and the first color temperature is, for example, red light; if the control unit 12 receives the external power twice within 3 seconds and the interval between the two receptions is 2 seconds, the external power is received for the second time. When the light-emitting unit 11 is controlled to have a second brightness or a second color temperature (ie, a second color) that is not zero in brightness, the second brightness is, for example, one-half of the brightness of the full-brightness, and the second color temperature is, for example, Blue light.

Of course, the above-mentioned times, interval time, first brightness, second brightness, first color temperature and second color temperature are all illustrative and are not intended to limit the present invention.

The control unit 12 controls the light-emitting unit 11 according to the number of times or the interval of receiving the external power source in a specific time, which is equivalent to the control unit 12 according to the number of times the switch SW is turned on and off or the interval between the on and off times. The light emitting unit 11 is controlled.

A practical example will be described below to explain how the control unit 12 controls the illumination unit 11 to emit light in accordance with the number of times the switch SW is turned on and off for a certain period of time. For example, when the switch SW is switched once in a certain time (for example, 3 seconds), the control unit 12 outputs a control signal CS to the light emitting unit 11, so that the light emitting unit 11 emits light with a quarter brightness, or causes the light emitting unit 11 to emit red. When the switch SW is switched twice in a certain time, the control unit 12 outputs the control signal CS to the light emitting unit 11, so that the light emitting unit 11 emits light with a brightness of one-half, or causes the light-emitting unit 11 to emit blue light; when the switch SW When the switch is turned on three times within a certain time, the control unit 12 outputs the control signal CS to the light-emitting unit 11, so that the light-emitting unit 11 emits light with three-quarters of brightness, or causes the light-emitting unit 11 to emit yellow light; when the switch SW switches four times within a certain time At the next time, the control unit 12 outputs the control signal CS to the light-emitting unit 11, causing the light-emitting unit 11 to emit light at full brightness, or causing the light-emitting unit 11 to emit mixed color light (i.e., white light) of red, blue, and yellow.

In addition, please refer to FIG. 2, which is a schematic diagram of a light-emitting device 1a according to a different embodiment of the preferred embodiment of the present invention.

The main difference between the illuminating device 1a and the illuminating device 1 of FIG. 1 is that the illuminating unit 11a of the illuminating device 1a has a plurality of illuminating diode modules 111a, and the illuminating diode modules 111a are respectively an ac LED. Alternating current light-emitting diode (AC LED). Each of the AC light-emitting diode modules has two light-emitting diodes, and the light-emitting diode systems are reversed, and the two alternating-current AC light-emitting diodes are connected in series. However, the number of mutually opposite light-emitting diodes and the number of serially connected AC light-emitting diodes are not limited, and in other embodiments, the number may be different. Here, there is no limitation.

In addition, the light emitting device 1a further includes a first electrical connection component 13 and a second electrical connection component 14. The first electrical connection component 13 is electrically connected to an external power source (not shown in FIG. 2 ), the light emitting unit 11 a and the control unit 12 , and the second electrical connection component 14 is electrically connected to the external power source, the light emitting unit 11 a and the control unit 12 . The first electrical connection component 13 has a second electrical input terminal, that is, a first electrode A1 and a second electrode A2, and the second electrical connection component 14 also has two electrical input terminals, that is, a first electrode B1. And a second electrode B2. The external power source can supply power to the first electrodes A1, B1 and the second electrodes A2, B2 of the first electrical connection element 13 and the second electrical connection element 14. The electrical input terminals of the first electrical connection component 13 and the second electrical connection component 14 (ie, the first electrode A1 and the second electrode A2, the first electrode B1, and the second electrode B2) are respectively associated with a firefly The lamp holder of the light tube (such as a fluorescent tube) is matched. In particular, if the shape of the light-emitting device 1a is the same as that of the conventional fluorescent tube, the first electrical connection element 13 and the second electrical connection element 14 may be respectively located at opposite ends of the light-emitting unit 11a. In addition, if the light-emitting device 1a is a ring-shaped, U-shaped or W-shaped lamp, the first electrode A1, B1 and the second electrode A2, B2 of the first electrical connection element 13 and the second electrical connection element 14 can be located. The same side of the light emitting unit 11a. Here, there is no limitation.

In addition, the light-emitting device 1a may further include at least one impedance element electrically connected between the electrical input terminals of the first electrical connection component 13 or the electrical input terminals of the second electrical connection component 14 between. In the present embodiment, the two impedance elements 15a, 15b are taken as an example, and the arrangement of the impedance elements 15a, 15b can be used to simulate the filament of a conventional fluorescent tube.

The impedance element 15a is electrically connected between the first electrode A1 and the second electrode A2 of the first electrical connection element 13, and the impedance element 15b is electrically connected to the first electrode B1 and the second of the second electrical connection element 14. Between the electrodes B2. In the present embodiment, the impedance elements 15a, 15b are respectively exemplified by a resistor. However, in other implementations, the impedance elements 15a, 15b can also be an inductor, or a capacitor, or a diode, or at least one AC LED module, or a combination thereof. Here, there is no limitation.

The arrangement of the impedance elements 15a, 15b allows the illumination device 1a to directly replace the conventional fluorescent tube (or fluorescent tube) with a ballast without having to remove the starter, ballast, or line of the fixture. Wherein, when the light-emitting device 1a is used to replace the conventional fluorescent tube with the coil type ballast and the starter, it is assumed that the first electrode A1 is connected to one end of the main power (external power supply), and the coil type stabilizer is connected to the other end of the commercial power supply. An electrode B1 is connected to the second electrode A2, B2.

When the power supply is started, the current I can flow from the first electrode A1 of the first electrical connection element 13 to the light-emitting unit 11a, through the first electrode B1 to the coil stabilizer, and back to the mains. At this time, both ends of the second electrodes A2 and B2 connected to the actuator are not inductively high because the light-emitting unit 11a is turned on, so that the actuator is not turned on, and the actuator is activated while the light-emitting unit 11a continues to emit light. Will not move. Therefore, when the illuminating device 1a is replaced with a conventional fluorescent tube to which the coil type ballast and the starter are attached, it is not necessary to remove the starter, the ballast or the line for changing the luminaire.

In addition, when the illuminating device 1a is used to replace the fluorescent tube with the electronic ballast, the electronic ballast detects the presence of the filament current. At this time, two current paths provide an analog filament current circuit for providing The electronic ballast detects that it flows between the first electrode A1 of the first electrical connection element 13 and the second electrode A2 of the first electrical connection element 13 (via the impedance element 15a), or at the first The first electrode B1 of the connecting element 13 flows between the second electrode B2 of the second electrical connecting element 14 (via the impedance element 15b). Here, the functions of the impedance elements 15a, 15b are similar to those of a conventional fluorescent tube having an electronic ballast, so that the light-emitting device 1a can directly replace the conventional fluorescent tube (or fluorescent tube) having an electronic ballast without having to Remove the stabilizer of the luminaire or change the wiring of the luminaire. Therefore, the arrangement of the impedance elements 15a, 15b allows the illuminating device 1a to directly replace the conventional fluorescent tube (or fluorescent tube) having a ballast without having to remove the starter, ballast, or line of the luminaire.

In addition, please refer to FIG. 3, which is a schematic diagram of another different embodiment of the light-emitting device 1b according to a preferred embodiment of the present invention.

The main difference between the illuminating device 1b and the illuminating device 1b of FIG. 2 is that the illuminating device 1b further has at least one rectifying element 16, the rectifying element 16 has an output end 161, and the output end 161 is electrically connected to the illuminating unit 11b. The rectifying element 16 can rectify the input external power source (alternating current, for example, commercial power) into direct current, and supply it to the light emitting diode of the light emitting unit 11b. In this embodiment, a rectifying element 16 is used, and a bridge rectifier is taken as an example.

The rectifier component 16 (bridge rectifier) further has a first input terminal 162, a second input terminal 163 and a ground terminal 164. The first input end 162 is electrically connected to the first electrical connection element 13 and the impedance element 15a, and the second input end 163 is electrically connected to the second electrical connection element 14 and the impedance element 15b.

In addition, other technical features of the light-emitting device 1b can be referred to the light-emitting device 1a, and details are not described herein again.

Hereinafter, please refer to FIG. 4A and FIG. 4B, respectively, to explain how to implement the circuit of the present invention. 4A and 4B are circuit diagrams of the light-emitting devices 2a, 2b according to different aspects of the preferred embodiment of the present invention.

As shown in FIG. 4A, the circuit structure of the light-emitting device 2a is substantially the same as that of the light-emitting device 1b of FIG. The main difference from the light-emitting device 1b is that the light-emitting unit 21a of the light-emitting device 2a has a plurality of light-emitting diode modules. Here, two sets of light-emitting diode modules 211a and 211b are taken as an example. In addition, the control unit 22a of the illuminating device 2a has a controller 221a, and the controller 221a may include an analog or digital circuit (for example, a microcontroller, MCU) to calculate the number of interruptions or intervals of the external power source for a specific time to control The illuminating brightness, the number of lighting, the lighting order of the illuminating device 2a, or the series-parallel configuration of the illuminating diode modules, so that the illuminating unit 21a has a first brightness or a second brightness whose brightness is not zero, or has the first One color temperature or a second color temperature. In addition, the control unit 22a further has a transistor M1, and an output terminal P1 of the controller 221a is electrically connected to the gate G1 of the transistor M1 to control the on or off of the transistor M1. Furthermore, the drain D1 of the transistor M1 is electrically connected to the LED module 211a and the LED module 211b, respectively, and the source S1 of the transistor M1 is grounded.

For example, when the power switch (not shown) is switched for the first time (that is, when the power switch is turned on for the first time to illuminate the light-emitting device 2a), the first electrical connection component 23 and the second electrical connection component 24 can be connected. The external power supply, at this time, the output terminal P1 of the controller 221a outputs a high potential to the gate G1 of the transistor M1 to be turned on, so that the LED module 211b is bypassed without being illuminated (current I only The light-emitting diode module 211a is caused to flow through the light-emitting diode module 211a. Therefore, the light-emitting device 2 can have a first brightness or a first color temperature (first light-emitting color).

When the power switch is switched for the second time (ie, the power switch is turned on for the second time), the controller 221a outputs a low potential to the gate G1 of the transistor M2, so that the transistor M2 is in an off state, so that the current I can flow simultaneously. The light-emitting diode module 211a and the light-emitting diode module 211b are used to illuminate the light-emitting diode module 211a and the light-emitting diode module 211b. Therefore, the light-emitting device 2 can have a second brightness or a second color temperature (the second color temperature is a mixed color of the light-emitting diode module 211a and the light-emitting color of the light-emitting diode module 211b).

Moreover, when the power switch is switched for the third time, the controller 221a again outputs a high potential to the gate G1 of the transistor M1 to be turned on, so that the LED module 211b is extinguished again. Therefore, the light-emitting device 2a can have a multi-stage dimming technology, and can control the number of light-emitting diodes of the light-emitting unit 21a according to the number of switching times (or intervals) of the power switch in a fixed time, thereby adjusting the light-emitting brightness or the light-emitting. colour.

The above is only an example. Of course, the light-emitting unit 21a may also have more than two light-emitting diode modules, and control the light-emitting device to emit different light-emitting luminances or color temperatures of more than two kinds in the above-mentioned control manner.

In addition, as shown in FIG. 4B, the circuit structure of the light-emitting device 2b is substantially the same as that of the light-emitting device 2a. The main difference from the light-emitting device 2a is that the light-emitting unit 21b of the light-emitting device 2b has three sets of light-emitting diode modules 211a, 211b, and 211c. The light emitting diode module 211a, the light emitting diode module 211b, and the light emitting diode module 211c may have different light emitting brightness or light emitting color, respectively. In addition, the LED module 211a is connected in series with the LED M1 of the LED module 211b and the control unit 22b, and the LED module 211a and the LED module 211c and the control unit 22b are connected in series. The transistor M2 is connected in series.

In addition, one output terminal P2 of the controller 221b is electrically connected to the gate G1 of the transistor M1 to control the on or off of the transistor M1, and one output terminal P3 of the controller 221b is connected to the gate G2 of the transistor M2. Electrically connected to control the turn-on or turn-off of the transistor M2. The drain D1 of the transistor M1 is electrically connected to the LED module 211b, and the source S1 is grounded. The drain D2 of the transistor M2 is electrically connected to the LED module 211c, and the source S2 is grounded.

For example, when the power switch (not shown) is switched for the first time (ie, when the power switch is turned on for the first time to illuminate the light-emitting device 2b), the first electrical connection component 23 and the second electrical connection component 24 can be connected. The external power supply, at this time, the output terminal P2 of the controller 221b outputs a high potential to the gate G1 of the transistor M1 to be turned on, so that the current I can flow through the LED module 211a and the LED module. 211b, the light-emitting diode module 211a and the light-emitting diode module 211b are illuminated, and the output terminal P3 of the controller 221b outputs a low potential to the gate G2 of the transistor M2 to be turned off, so that the light-emitting two The polar body module 211c is not lit, and the light emitting color of the light emitting device 2b is a mixed color of the light emitting color of the light emitting diode module 211a and the light emitting diode module 211b.

When the power switch is switched for the second time, the output terminal P2 of the controller 221b outputs a low potential to the gate G1 of the transistor M1, so that the transistor M1 is in an off state, and the output terminal P3 outputs a high potential to the transistor M2. The gate G2 is in a conducting state, and the LED module 211a and the LED module 211c are illuminated, and the LED module 211b is not lit, so that the illumination device 2b is The illuminating color is changed to a mixed color of the illuminating colors of the illuminating diode module 211a and the illuminating diode module 211c.

Furthermore, when the power switch is switched for the third time, the controller 221b again outputs a high potential to the gate G1 of the transistor M1 to be turned on, and outputs a low potential to the gate G2 of the transistor M2 to be turned off. The LED module 211a and the LED module 211b are turned on again, and the LED module 211c is turned off, and the color of the illumination is changed. Therefore, the light-emitting device 2b can have a multi-stage dimming (light-emitting color, color temperature) technique, and can adjust the light-emitting color or color temperature of the light-emitting unit 21b according to the number of times of switching of the power switch in a fixed time (ie, the number of times the external power source is received). Therefore, the light-emitting device 2b can achieve the effect of dimming (lighting color, color temperature) without changing the indoor wiring.

In addition, please refer to FIG. 5 , which is a schematic flowchart of a dimming method of the present invention. For the sake of clarity, please also refer to the above-described light-emitting device 2b of FIG. 4B.

The dimming method of the present invention includes step S01 and step S02.

Step S01 is to electrically connect a light emitting unit 21b and a control unit 22b, wherein the light emitting unit 21b has at least one light emitting diode. Herein, the light-emitting unit 21b has three sets of light-emitting diode modules 211a, 211b, and 211c, and the light-emitting diode modules 211a, 211b, and 211c may respectively include a plurality of light-emitting diodes connected in series or in parallel. The light emitting diode module 211a, the light emitting diode module 211b, and the light emitting diode module 211c may have different light emitting brightness or light emitting color, respectively. In addition, the LED module 211a is connected in series with the LED M1 of the LED module 211b and the control unit 22b, and the LED of the LED module 211a and the LED module 211c and the control unit 22b. M2 is connected in series.

Step S02 is: the control unit 12 controls the light-emitting unit 21b to make the light-emitting unit 21b have a non-zero brightness in a state in which the control unit 22b receives the external power source according to the number or interval of receiving an external power source within a specific time. One of the first brightness or the second brightness, or has a first color temperature or a second color temperature. The light-emitting brightness, the color of the light, the number of lighting, the lighting order, or the series-parallel configuration of the light-emitting unit 21b are changed by the control unit 22b.

In addition, since the dimming method has been described in detail above, it will not be described herein.

In summary, the illuminating device and the dimming method thereof according to the present invention control the illuminating unit by the control unit according to the number or interval of receiving the external power source within a specific time, so that the brightness is not zero. Brightness or a second brightness, or having a first color temperature or a second color temperature. Therefore, the light-emitting device of the present invention can emit light with different light-emitting brightness or different light-emitting color to achieve the purpose of controlling the light-emitting brightness or the light-emitting color of the light-emitting device, thereby facilitating the use and improving the product competitiveness.

The above is intended to be illustrative only and not limiting. Any equivalent modifications or alterations to the spirit and scope of the invention are intended to be included in the scope of the appended claims.

1, 1a, 1b, 2a, 2b. . . Illuminating device

11, 11a, 11b, 21a, 21b. . . Light unit

111a, 211a, 211b, 211c. . . Light-emitting diode module

12, 22a, 22b. . . control unit

13,23. . . First electrical connection element

14, 24. . . Second electrical connection element

15a, 15b, 25a, 25b. . . Impedance component

16. . . Rectifying component

161, P1, P2, P3. . . Output

162, 163. . . Input

164. . . Ground terminal

221a, 221b. . . Controller

A1, B1. . . First electrode

A2, B2. . . Second electrode

C. . . capacitance

CS. . . Control signal

D1, D2. . . Bungee

G1, G2. . . Gate

I. . . Current

M1, M2. . . Transistor

R1, R2. . . resistance

S01, S02. . . step

S1, S2. . . Source

SW. . . switch

1 is a schematic view of a light emitting device according to a preferred embodiment of the present invention;

2 and 3 are schematic views of different embodiments of a light-emitting device according to a preferred embodiment of the present invention;

4A and 4B are respectively schematic circuit diagrams of different embodiments of a light-emitting device according to a preferred embodiment of the present invention;

FIG. 5 is a schematic flow chart of a dimming method according to the present invention.

1. . . Illuminating device

11. . . Light unit

12. . . control unit

CS. . . Control signal

SW. . . switch

Claims (15)

An illuminating device receives an external power source and includes: an illuminating unit having at least one illuminating diode; and a control unit electrically connected to the illuminating unit, wherein the control unit receives the external power source The control unit controls the light-emitting unit to have a first brightness or a second brightness that is not zero, or has a first color temperature or a first time according to the number or interval of receiving the external power source within a specific time period. Two color temperature. The illuminating device of claim 1, wherein the illuminating unit has a plurality of illuminating diode modules, and the illuminating diode modules are connected in series or in parallel. The illuminating device of claim 2, wherein the illuminating diode modules are respectively AC illuminating diode modules. The illuminating device of claim 2, wherein the control unit changes the illuminating brightness, the illuminating color, the number of lighting, the lighting order of the illuminating unit, or changes the series-parallel group of the illuminating diode modules. state. The illuminating device of claim 1, further comprising: a first electrical connecting component electrically connected to the external power source, the illuminating unit and the control unit, the first electrical connecting component having two electrical inputs . The illuminating device of claim 5, further comprising: a second electrical connecting component electrically connected to the external power source, the illuminating unit and the control unit, the second electrical connecting component having two electrical inputs end. The illuminating device of claim 6, wherein the first electrical connecting component and the second electrical connecting component are respectively located at opposite ends of the illuminating unit. The illuminating device of claim 6, wherein the electrical input terminals of the first electrical connecting component and the second electrical connecting component respectively cooperate with a socket of a fluorescent tube. The illuminating device of claim 6, further comprising: at least one impedance component electrically connected between the electrical input terminals of the first electrical connection component, or the second electrical connection component Between the isoelectric inputs. The illuminating device of claim 9, wherein when the number of the impedance elements is two, one of the impedance elements is electrically connected to the electrical input terminals of the first electrical connection element The other of the impedance elements is electrically connected between the electrical inputs of the second electrical connection element. The illuminating device of claim 9, wherein the impedance element is a resistor, or an inductor, or a capacitor, or a diode, or at least one ac diode, or a combination thereof. The illuminating device of claim 1, further comprising: at least one rectifying component having an output end electrically connected to the illuminating unit. A dimming method includes the steps of: electrically connecting a light emitting unit and a control unit, wherein the light emitting unit has at least one light emitting diode: and the number of times the control unit receives an external power source according to a specific time Or, at intervals, controlling the lighting unit to have the first unit of brightness or a second brightness having a brightness other than zero, or having a first color temperature or a second state, in a state in which the control unit receives the external power source Color temperature. The dimming method of claim 13, wherein the illuminating unit has a plurality of illuminating diode modules, and the illuminating diode modules are connected in series or in parallel. The dimming method according to claim 13, wherein the control unit changes the light-emitting brightness, the light-emitting color, the number of lighting, the lighting order, or the series-parallel configuration of the light-emitting unit.