CN204459826U - Light emitting module and lighting device - Google Patents

Abstract

The utility model provides a light emitting module and a lighting device. The light emitting module of the embodiment includes: a plurality of first light emitting parts arranged in a predetermined area on the substrate to emit light of a first color temperature; and a plurality of second light emitting parts arranged in the predetermined area to emit light of a second color temperature of light. Furthermore, in the light-emitting module of the embodiment, one of the first light-emitting sections among the plurality of first light-emitting sections is provided at a central portion of the predetermined area. Furthermore, in the light emitting module according to the embodiment, the second light emitting part is provided adjacent to the first light emitting part provided in the central part. Furthermore, in the light-emitting module according to the embodiment, the second light-emitting part provided adjacent to the first light-emitting part is located on the side opposite to the side where the first light-emitting part provided in the central part is located, and further There is the first light emitting part. The utility model suppresses the generation of uneven color.

Description

Light-emitting module and lighting device

technical field

The embodiment of the utility model relates to a light emitting module (module) and a lighting device.

Background technique

In recent years, lighting devices including power-saving light emitting elements such as light emitting diodes (Light Emitting Diodes, LEDs) have been used as lighting devices. A lighting device including such a light-emitting element can obtain higher brightness or illuminance with less power consumption than conventional incandescent light bulbs, for example.

Furthermore, there is a light emitting module in which a plurality of blue LED chips are arranged on a substrate and divided into groups of light emitting parts with different color temperatures.

However, in such a light-emitting module, for example, the amount of light emitted by a light-emitting portion that emits light of the first color temperature disposed in the central portion of the region on the substrate where the light-emitting portion is disposed may be smaller than that of a light-emitting portion disposed in the peripheral portion of the region. The amount of light emitted by the light emitting part that emits light of the second color temperature. This is because the temperature of the central part is higher than the temperature of the peripheral part, and LED has a temperature characteristic that the amount of light emitted decreases as the temperature increases, and the phosphor contained in the light emitting part also has the following temperature characteristic, that is, When the temperature becomes higher, the luminous efficiency similarly decreases. For this reason, color unevenness may occur on the irradiated surface irradiated with the light emitted from the light emitting module.

prior art literature

patent documents

Patent Document 1: Japanese Patent Laid-Open No. 2008-218485

Utility model content

[Problems to be solved by the utility model]

The problem to be solved by the utility model is to suppress the occurrence of color unevenness.

[Technical means to solve the problem]

The light emitting module of the embodiment includes: a plurality of first light emitting parts arranged in a predetermined area on the substrate to emit light of a first color temperature; and a plurality of second light emitting parts arranged in the predetermined area to emit light of a second color temperature of light. Furthermore, in the light-emitting module of the embodiment, one of the first light-emitting sections among the plurality of first light-emitting sections is provided at a central portion of the predetermined area. Furthermore, in the light emitting module according to the embodiment, the second light emitting part is provided adjacent to the first light emitting part provided in the central part. Furthermore, in the light-emitting module according to the embodiment, the second light-emitting part provided adjacent to the first light-emitting part is located on the side opposite to the side where the first light-emitting part provided in the central part is located, and further There is the first light emitting part.

In addition, the first color temperature of the light emitting module is higher than the second color temperature.

In addition, the first light-emitting part of the light-emitting module includes a light-emitting element and a red phosphor, the light-emitting element emits light of a third color temperature, and the red phosphor converts the light of the third color temperature emitted by the light-emitting element into red For light with a color temperature, the second light-emitting unit includes the light-emitting element and the red phosphor, the number of the light-emitting elements in the power supply system that supplies power to the first light-emitting unit, and the power supply system that supplies power to the second light-emitting unit The number of the light-emitting elements in is the same.

A lighting device according to an embodiment includes the light emitting module; a power supply unit that controls power supplied to the light emitting module; and a reflector that reflects light emitted by the light emitting module.

(effect of utility model)

According to the light emitting module of the embodiment, the effect that the occurrence of color unevenness can be suppressed can be expected.

Description of drawings

FIG. 1 is a perspective view showing an appearance example of a lighting device 1 according to the embodiment.

Fig. 2 is a diagram showing an example of the structure of the light emitting module viewed from the direction of arrow A in Fig. 1 .

FIG. 3 is a diagram for explaining an arrangement of light emitting elements such as LEDs in the light emitting module shown in the example of FIG. 2 .

Fig. 4 is a diagram for explaining a modified example of the light emitting module of the embodiment.

Fig. 5 is a diagram for explaining a modified example of the light emitting module of the embodiment.

Fig. 6 is a diagram for explaining a modified example of the light emitting module of the embodiment.

Fig. 7 is a diagram for explaining a modified example of the light emitting module of the embodiment.

Fig. 8 is a diagram for explaining a modified example of the light emitting module of the embodiment.

Fig. 9 is a diagram for explaining a modified example of the light emitting module of the embodiment.

Fig. 10A is a diagram for explaining a modified example of the light emitting module of the embodiment.

Fig. 10B is a diagram for explaining a modified example of the light emitting module of the embodiment.

Explanation of reference signs:

1: Lighting device;

2: Radiator;

2a: cooling fins;

3: decorative frame;

3a: annular flange;

3b: light projection opening;

3c: outer wall;

4: reflector;

5: fixed part;

6: Mounting parts;

7: Install the top plate of the frame;

8: cable;

9: Power supply unit;

10: light emitting module;

110: substrate;

110a: configuration surface;

120, 120a-120c: the first light-emitting part;

120a-1～120a-3, 120b-1～120b-3, 120c-1～120c-3, 125a-1～125a-3, 125b-1～125b-3: light emitting part;

121: blue LED;

125, 125a, 125b: the second light emitting part;

130: frame material;

131, 131a～131e: area;

140, 141: sealing components;

150a～150d: wiring pattern;

201a-201d: connectors;

A, B: Arrows.

Detailed ways

The light-emitting module in the embodiment described below includes: a plurality of first light-emitting parts arranged in a predetermined area on the substrate to emit light of a first color temperature; and a plurality of second light-emitting parts arranged in a predetermined area to emit light of a first color temperature. 2 color temperatures of light. Furthermore, in the light-emitting module according to the embodiment described below, any one of the plurality of first light-emitting sections is provided in the center of the predetermined region. Furthermore, in the light-emitting module according to the embodiment described below, the second light-emitting portion is provided adjacent to the first light-emitting portion provided in the central portion. Furthermore, in the light emitting module according to the embodiment described below, with respect to the second light emitting part provided adjacent to the first light emitting part, the side opposite to the first light emitting part provided in the central part is located. On the side, a first light-emitting part is further provided.

Furthermore, in the light-emitting module of the embodiment described below, the first color temperature is higher than the second color temperature.

Furthermore, in the light-emitting module of the embodiment described below, the first light-emitting portion includes a light-emitting element that emits light of a third color temperature, and a red phosphor that emits light of the third color temperature from the light-emitting element. The light is converted into light with a red color temperature. Furthermore, the second light emitting part includes a light emitting element and a red phosphor, and the ratio of the red phosphor contained in the second light emitting part is larger than that contained in the first light emitting part.

Furthermore, in the light emitting module according to the embodiment described below, the number of light emitting elements in the power supply system supplying power to the first light emitting unit is the same as the number of light emitting elements in the power supply system supplying power to the second light emitting unit.

Furthermore, the lighting device according to the embodiment described below includes: a light emitting module; a power supply unit that controls power supplied to the light emitting module; and a reflector that reflects light emitted from the light emitting module.

Hereinafter, a light emitting module and a lighting device according to an embodiment will be described with reference to the drawings. In addition, in the embodiment, the same symbols are attached to the configurations having the same functions, and overlapping descriptions are omitted. In addition, the light-emitting module and illuminating device demonstrated in the following embodiment are mere examples, and do not limit this invention.

[implementation mode]

A lighting device including a light emitting module according to an embodiment will be described with reference to FIG. 1 . In the embodiment, a downlight will be described as an example of a lighting device including a light emitting module.

[Structure of lighting device 1]

FIG. 1 is a perspective view showing an appearance example of a lighting device 1 according to the embodiment. FIG. 1 shows an example in which the lighting device 1 is viewed obliquely from below.

The lighting device 1 shown in FIG. 1 is, for example, a downlight type lighting fixture installed in a ceiling of a room. The lighting device 1 shown in FIG. 1, for example, illuminates a room or the like in a downward direction shown in FIG. 1 by making the blue LED 121 of the light emitting module 10 installed inside emit light. The lighting device 1 includes a heat sink 2 and a decorative frame 3 .

The heat sink 2 is made of metal with high thermal conductivity. For example, the radiator 2 is formed by aluminum diecast. The heat sink 2 is formed of a plurality of heat radiation fins (fin) 2a as planar members. And, inside the heat sink 2, a light emitting module 10 having a blue LED 121 is provided (refer to FIGS. 2 and 3 ). The heat sink 2 radiates heat generated from the blue LED 121 to the outside. Accordingly, the heat sink 2 can suppress the temperature rise of the lighting device 1 . Furthermore, the radiator 2 is attached to the decorative frame 3 .

The decorative frame 3 is, for example, made of synthetic resin such as acrylonitrile butadiene styrene (Acrylonitrile Butadiene Styrene, ABS) resin. The decorative frame 3 is formed in a cylindrical shape with upper and lower ends opening substantially circularly, and has an annular flange 3a protruding outward from the lower end. Specifically, in the decorative frame 3, as shown in FIG. 1, a light projection opening 3b is formed. Furthermore, a reflector 4 is provided on the decorative frame 3 . The decorative frame 3 adjusts the light distribution of the light emitted by the blue LED 121. Specifically, the light emitted from the blue LED 121 directly passes through the light projection opening 3b of the decorative frame 3, or passes through the light projection opening 3b of the decorative frame 3 after being reflected by the reflector 4, so according to the cylindrical shape of the decorative frame 3 The inner diameter of the blue LED 121, or the length from the blue LED 121 to the lower end of the cylindrical shape of the decorative frame 3, etc., adjust the irradiation direction of the light emitted from the blue LED 121.

Furthermore, three fixing portions 5 are provided on the outer wall 3c of the decorative frame 3 . In addition, in the example of FIG. 1, only one of the three fixing parts 5 is shown in figure. Three attachments 6 are fitted and fixed to each of the three fixing parts 5 . In addition, in the example of FIG. 1, only one of the three attachments 6 is shown in figure. Furthermore, an attachment frame top plate 7 is attached to the outer wall 3c of the decoration frame 3 . On the mounting frame top plate 7, a terminal board not shown is mounted. The terminal block is connected to a power supply unit 9 as a power supply device via a cable 8 . Furthermore, the wiring board is connected to connectors 201 a to 201 d of the substrate 110 of the light emitting module 10 bonded to the flat surface of the heat sink 2 via connection wires (harness). The power supply unit 9 controls power supplied to the light emitting module 10 . For example, the power supply unit 9 is connected to an unillustrated commercial AC power supply, converts the AC power from the commercial AC power supply into DC power, and supplies it to the blue LED 121 through the terminal block and connectors 201a-201d. As a result, the blue LED 121 lights up.

The mount 6 is an elastic member of a metal plate, and can be bent to a position approximately parallel to the outer wall 3c of the decorative frame 3 by being pressed upward from the outside while attached to the fixing portion 5 of the decorative frame 3 . When the lighting device 1 is embedded in the ceiling, the mounting member 6 is inserted into the insertion hole of the ceiling wall while being bent to a position substantially parallel to the outer wall 3c of the decorative frame 3, and pushed up until the ring-shaped protrusion The edge 3a touches the ceiling. Then, the mounting member 6 returns to its original state without being pressed from the outside, thereby sandwiching the ceiling wall with the annular flange 3a. Thus, the lighting device 1 is embedded in the ceiling.

[Structure of light emitting module 10]

FIG. 2 is a diagram showing an example of the structure of the light emitting module 10 viewed from the direction of arrow A in FIG. 1 . FIG. 3 is a diagram for explaining the arrangement of light emitting elements such as LEDs in the light emitting module shown in the example of FIG. 2 . As shown in FIG. 2 , the light emitting module 10 has a substrate 110 . The substrate 110 is, for example, a ceramic substrate, an insulating resin substrate, or a metal base substrate. On the arrangement surface 110a of the substrate 110, a frame material (resin bank) 130 for partitioning first light emitting sections 120a to 120c and second light emitting sections 125a and 125b described later is provided. In addition, the first light emitting units 120a to 120c may be referred to as the first light emitting unit 120 when not distinguishing the description, and the second light emitting units 125a and 125b may be referred to as the second light emitting unit when not distinguishing the description. 125. Sometimes, the first light emitting unit 120 and the second light emitting unit 125 are referred to simply as the light emitting unit 12 unless they are described differently. A plurality of (five, odd number) regions 131 a to 131 e are formed along the arrow B direction by the frame material 130 . Furthermore, a region 131 including the regions 131 a to 131 e is formed by the outer edge of the frame material 130 . That is, the areas obtained by dividing the area 131 into five in the direction of the arrow B are referred to as areas 131a to 131e. The region 131 is a region where the light emitting unit 12 described later is provided. In addition, in order to provide the same type of light-emitting units 12 in the central area of the area 131 and in the outermost area of the area 131 in the direction of the arrow B, the area 131 must be divided into an odd number. As an example of the odd number, an example of five is shown.

As shown in the example of FIG. 3 , wiring patterns 150 a to 150 d are formed on the arrangement surface 110 a of the substrate 110 . The wiring patterns 150 a to 150 d are electrical conductors printed on the substrate 110 . One end of the wiring pattern 150 a is connected to the connector 201 a provided on the substrate 110 . Furthermore, one end of the wiring pattern 150 b is connected to a connector 201 b provided on the substrate 110 . Furthermore, one end of the wiring pattern 150c is connected to the connector 201c provided on the substrate 110 . Furthermore, one end of the wiring pattern 150d is connected to the connector 201d provided on the substrate 110 . In addition, in the example of FIG. 3, only the outer edge part in the frame material 130 is shown, and the illustration of the part which divides regions 131a-131e is abbreviate|omitted.

Furthermore, as shown in FIG. 3 , the other end of the wiring pattern 150 a and the other end of the wiring pattern 150 b are formed on the arrangement surface 110 a so as to be substantially parallel to each other. Furthermore, the other end of the wiring pattern 150c and the other end of the wiring pattern 150d are also formed on the arrangement surface 110a so as to be substantially parallel to each other.

The area 131c among the areas 131a to 131e is the central part of the area 131 . The light emitting units 12 are respectively provided in the areas 131a to 131e, and when the light emitting units 12 are turned on, the temperature of the area 131c which is the center of the area 131 among the areas 131a to 131e becomes the highest. Furthermore, the temperature of the regions 131b and 131d is lower than the temperature of the region 131c and higher than the temperature of the regions 131a and 131e. Furthermore, the temperature of the regions 131a and 131e is the lowest in the regions 131a to 131e. That is, in the region where the light emitting part 12 is provided, the temperature becomes the highest at the central part, and the temperature becomes lower toward the periphery.

In the region 131c, the first light emitting unit 120a is provided. As shown in FIG. 3 , the first light emitting unit 120a has: a plurality of blue LEDs 121 emitting light with a blue color temperature; seal. The sealing member 140 is filled in a space formed by the frame material 130 and the substrate 110 . The sealing member 140 is a highly diffusible and thermoplastic transparent resin such as epoxy resin, urea resin, silicone resin, etc., to which a yellow phosphor and a red phosphor are added. The yellow phosphor reduces the blue color temperature emitted by the blue LED 121 The light of the blue color temperature is converted into the light of the yellow color temperature, and the red phosphor converts the light of the blue color temperature emitted by the blue LED 121 into the light of the red color temperature. In the sealing member 140, the content of the yellow phosphor is larger than that of the red phosphor. That is, in the sealing member 140 , the ratio of the yellow phosphor to all the phosphors is larger than the ratio of the red phosphor to all the phosphors. The color of the light emitted by the first light emitting unit 120a is the result of mixing the light of the blue color temperature emitted by the blue LED 121 with the light of the yellow color temperature and the light of the red color temperature converted by the yellow phosphor and the red phosphor, For example, day white (5000K, Ra70).

In the first light emitting unit 120a shown in the example of FIG. 3, ten blue LEDs 121 are connected in series by bonding wires. And, 8 sets of 10 blue LEDs 121 connected in series (hereinafter sometimes referred to as the first blue LED group) are connected in parallel.

In the regions 131b and 131d, the second light emitting parts 125a and 125b are provided. That is, the second light emitting parts 125a and 125b are provided adjacent to the first light emitting part 120a. In addition, the fact that the second light emitting parts 125a, 125b are adjacent to the first light emitting part 120a means that no other light emitting part is provided between the second light emitting parts 125a, 125b and the first light emitting part 120a. The second light emitting part 125 has: a blue LED 121; The sealing member 141 is provided in a space formed by the frame material 130 and the substrate 110 . The sealing member 141 is a transparent thermoplastic resin with high diffusivity, such as epoxy resin, urea resin, and silicone resin, to which yellow phosphor, green phosphor, and red phosphor are added. The green phosphor emits blue LED 121. Light with a blue color temperature is converted to light with a green color temperature. In the sealing member 141 , the content of the red phosphor is larger than that of the yellow phosphor or the green phosphor. That is, in the sealing member 141 , the ratio of the red phosphor to all the phosphors is larger than the ratio of the yellow phosphor or the green phosphor to all the phosphors. The color of the light emitted by the second light-emitting part 125 is the light of the blue color temperature emitted by the blue LED 121, the light of the yellow color temperature, the light of the green color temperature, and the red light converted by the yellow phosphor, the green phosphor, and the red phosphor. The result of mixing light of color temperature, for example, is the bulb color (2700K, Ra85).

In the second light emitting unit 125a shown in the example of FIG. 3, 15 blue LEDs 121 are connected in series by bonding wires. And, 8 sets of 15 blue LEDs 121 (hereinafter sometimes referred to as the second blue LED group) connected in series are connected in parallel. One end of each of the eight second blue LED groups is connected to the other end of the wiring pattern 150d.

Furthermore, in the second light emitting unit 125b shown in the example of FIG. 3, 15 blue LEDs 121 are connected in series by bonding wires. And, 8 sets of 15 blue LEDs 121 (hereinafter sometimes referred to as a third blue LED group) connected in series are connected in parallel. One end of each of the eight third blue LED groups is connected to the other end of the wiring pattern 150c.

Furthermore, the other ends of the eight second blue LED groups are connected to the other ends of the eight third blue LED groups. That is, in the second light emitting unit 125 (the second light emitting unit 125a and the second light emitting unit 125b) that emits light at the color temperature of the bulb, 8 groups of 30 blue LEDs 121 connected in series are connected in parallel as a whole.

In the regions 131a and 131e, the first light emitting parts 120b and 120c are provided. That is, the first light emitting parts 120b and 120c are provided on the side opposite to the side where the first light emitting part 120a is located with respect to the second light emitting part 125 . The configuration of the first light emitting parts 120b and 120c is substantially the same as that of the first light emitting part 120a. For example, the first light emitting units 120b and 120c have a plurality of blue LEDs 121 and a sealing member 140 that seals the plurality of blue LEDs 121. The color of the light emitted by the first light emitting unit 120b is the result of mixing the light of the blue color temperature emitted by the blue LED 121 with the light of the yellow color temperature and the light of the red color temperature converted by the yellow phosphor and the red phosphor, for example, Day white (5000K, Ra70).

Moreover, in the 1st light emitting part 120b, like the 1st light emitting part 120a, ten blue LED121 are connected in series by the bonding wire. And, 8 sets of 10 blue LEDs 121 (hereinafter sometimes referred to as the fourth blue LED group) connected in series are connected in parallel. One end of each of the eight fourth blue LED groups is connected to the other end of the wiring pattern 150a. Furthermore, the other ends of the eight fourth blue LED groups are connected to one ends of the eight first blue LED groups.

And in the 1st light emitting part 120c, like the 1st light emitting part 120a, ten blue LED121 are connected in series by the bonding wire. And, 8 sets of 10 blue LEDs 121 (hereinafter sometimes referred to as the fifth blue LED group) connected in series are connected in parallel. One end of each of the eight fifth blue LED groups is connected to the other end of the wiring pattern 150b. Furthermore, the other ends of the eight fifth blue LED groups are connected to the other ends of the eight first blue LED groups. That is, in the first light emitting part 120 (the first light emitting part 120a, the first light emitting part 120b, and the first light emitting part 120c) that emits light with a daytime white color temperature, 8 groups of 30 blue LEDs 121 are connected in series as a whole. The resulting parts are connected in parallel.

Therefore, in the light-emitting module 10 of this embodiment, the power supply system is a dual system, but the number (240) of the blue LEDs 121 in each power supply system is equal, so a shared power supply can be used, so the design cost can be suppressed.

The connectors 201a to 201d are electrically connected to the power supply unit 9 via the terminal block. When power is supplied from the power supply unit 9 to the first light emitting unit 120 via the connector 201a and the connector 201b, the first light emitting unit 120 is turned on. Then, when power is supplied from the power supply unit 9 to the second light emitting unit 125 through the connector 201c and the connector 201d, the second light emitting unit 125 is turned on.

Here, the amount of light emitted by the first light emitting unit 120a disposed in the center of the region 131 and emitting light at the daylight white color temperature may be smaller than that of the first light emitting unit 120a disposed adjacent to the first light emitting unit 120a and emitting light at the color temperature of the bulb. 2. The amount of light emitted by the light emitting parts 125a and 125b. This is because the temperature of the central part is higher than the temperature of the peripheral part, and the blue LED 121 has a temperature characteristic that the amount of light emitted by the blue LED 121 decreases as the temperature becomes higher (that is, the luminous efficiency decreases as the temperature becomes higher), and the light emitting part 12 Phosphors contained in also have the following temperature characteristics, that is, if the temperature becomes higher, the luminous efficiency will decrease in the same way. Therefore, in this embodiment, the first light emitting parts 120b and 120c are provided on the side opposite to the side where the first light emitting part 120a provided in the center is located with respect to the second light emitting parts 125a and 125b. The decrease in the light emission amount of the light of the day-white color temperature of the first light-emitting part 120a is compensated by the light of the day-white color temperature emitted by the first light-emitting parts 120b and 120c. Therefore, according to the light-emitting module 10 of this embodiment, occurrence of color unevenness can be suppressed.

In particular, when the substrate 110 is a substrate with low thermal conductivity such as a ceramic substrate or an insulating resin substrate, the temperature at the central portion tends to increase. Therefore, in this case, the luminous efficiency of the first light emitting portion 120a is particularly likely to deteriorate. However, even in this case, according to the present embodiment, the decrease in the light emission amount of the light of the day-white color temperature of the first light-emitting portion 120a is compensated by the light of the day-white color temperature emitted by the first light-emitting portions 120b and 120c. The occurrence of color unevenness can also be suppressed.

Furthermore, in the present embodiment, the light emitting module 10 is used as a light source in the lighting device 1 provided with the reflector 4 . In general, when light from a plurality of light emitting parts that emit light of different color temperatures is reflected by a reflector, and the reflected light is irradiated to a predetermined surface (irradiation surface), the loss of light quantity in the reflected light is large, so Color unevenness tends to occur on the irradiated surface. Furthermore, the closer to the light-emitting portion of the reflector, the larger the amount of light reflected by the reflector among the emitted light. Assuming that a light-emitting part 12 with poor luminous efficiency is provided in the regions 131a, 131e closest to the reflector 4 among the regions 131a-131e, most of the light emitted from the light-emitting part 12 is reflected by the reflector 4, and emits light from the reflector 4. The already dim light emitted by the light-emitting part 12 with low efficiency will be further dimmed. Therefore, in this embodiment, in the regions 131a, 131e closest to the reflector 4, the first light emitting part 120 is provided, and the color temperature of the light emitted by the first light emitting part 120 is higher than that of the second light emitting part 125. And the luminous efficiency is good. This suppresses the occurrence of color unevenness due to a significant drop in brightness of light irradiated from the light emitting parts 12 provided in the regions 131a and 131e closest to the reflector 4 to the irradiated surface. In addition, the second light emitting part 125 has lower light emitting efficiency than the first light emitting part 120 because the ratio of the red phosphor having lower light emitting efficiency is larger than that of the yellow phosphor or the green phosphor.

The embodiments have been described above.

As is clear from the above description, according to the light-emitting module 10 of this embodiment, it can be expected that the occurrence of color unevenness can be suppressed.

In addition, in the above-mentioned embodiment, a case has been described in which, as shown in FIG. The quadrangular shape, but the shape of the outer edge of the frame material 130 or the shape of the region 131 is not limited thereto. For example, as shown in FIG. 4 , the shape of the outer edge of the frame member 130 may be substantially circular, and the shape of the region 131 where the light emitting unit 12 is provided may be substantially circular.

2 and 4, the case where the frame material 130 has the divided regions 131a to 131e has been described, but as shown in FIGS. 5 and 6, the frame material 130 may not have the divided regions 131a to 131e. part. At this time, the light emitting unit 120 and the light emitting unit 125 are formed in a line (line) shape on the arrangement surface 110 a of the substrate 110 . In addition, in the example of FIG. 5 and FIG. 6, the three light emitting parts 120a-1-120a-3 formed in the linear form have the same structure as the 1st light emitting part 120a. The three light emitting units 120a-1 to 120a-3 are regarded as one first light emitting unit 120a. Similarly, the three linear light emitting sections 120b-1 to 120b-3 have the same structure as the first light emitting section 120b, and the three linear light emitting sections 120c-1 to 120c-3 have the same structure as the first light emitting section 120b. Section 120c has the same structure. Furthermore, the three light emitting units 120b-1 to 120b-3 are regarded as one first light emitting unit 120b. Furthermore, the three light emitting units 120c-1 to 120c-3 are regarded as one first light emitting unit 120c.

Moreover, in the example of FIG. 5 and FIG. 6, the three light emitting parts 125a-1-125a-3 formed in the linear form have the same structure as the 2nd light emitting part 125a. The three light emitting units 125a-1 to 125a-3 are regarded as one second light emitting unit 125a. Similarly, the three light emitting parts 125b-1 to 125b-3 formed in a linear shape have the same structure as the second light emitting part 125b. The three light emitting units 125b-1 to 125b-3 are regarded as one second light emitting unit 125b.

Furthermore, in the embodiment, a case has been described in which the light-emitting units 12 are respectively provided in five regions obtained by dividing the region 131 in the direction of the arrow B, but the number of divisions is not limited to this. For example, the light emitting units 12 may be respectively provided in regions obtained by dividing the region 131 into an odd number N greater than 5. The examples in FIG. 7 and FIG. 8 show the case where the first light emitting sections 120 and the second light emitting sections are alternately provided in the direction of the arrow B in the areas obtained by dividing the area 131 into an odd number of 17. 125. In this case, the first light emitting unit 120 is provided in the central region of the region 131 .

Furthermore, in the embodiment, the case where the first light emitting units 120 and the second light emitting units 125 are alternately provided in the direction of the arrow B has been described, but the case where the first light emitting units 120 and the second light emitting units 125 are alternately provided The direction is not limited to this. For example, as shown in the example of FIG. 9 , the first light emitting sections 120 and the second light emitting sections 125 may be alternately provided in all directions. In this case, the first light emitting unit 120 is provided in the central region of the region 131 .

Moreover, in the embodiment, the following case has been described, that is, the light-emitting elements included in the first light-emitting unit 120 and the second light-emitting unit 125 are the same blue LED 121, and the light-emitting elements included in the first light-emitting unit 120 are The mixing ratio of the phosphors is different from the mixing ratio of the phosphors contained in the second light emitting unit 125 . However, it is also possible to use the blue LED 121 as the light-emitting element included in the first light-emitting unit 120, and use the blue LED 121 and the red LED that emit light with a red color temperature as the light-emitting element included in the second light-emitting unit 120. , and the mixing ratio of the phosphors contained in the first light emitting part 120 and the mixing rate of the phosphors contained in the second light emitting part 125 are set to be the same. Therefore, when manufacturing the light-emitting module, it is not necessary to prepare two types of sealing members having different mixing ratios of phosphors, but only one sealing member having a single mixing ratio of phosphors is required, thereby greatly reducing loss in the manufacturing process. As a result, an inexpensive light emitting module can be provided.

Furthermore, in the embodiment, a case has been described in which, in the power supply system of the first light emitting unit 120 among the two power supply systems, as shown in FIG. The number of blue LEDs 121 connected in series in the region 131c, and the number of blue LEDs 121 connected in series in the region 131e are all 10. However, in the power supply system of the first light emitting unit 120, as shown in FIG. 10A, the number of blue LEDs 121 connected in series in the region 131a may be nine, and the number of blue LEDs 121 connected in series in the region 131c may be nine. The number of LEDs 121 is set to 12, and the number of blue LEDs 121 connected in series in the area 131e is set to 9. In addition, the number of parallel connections is "8". Here, if one "light emitting unit" is expressed as one "block", as shown in FIG. 10A , the power supply system of the first light emitting unit 120 is divided into three blocks. Furthermore, as shown in FIG. 10B , the power supply system of the second light emitting unit 125 is divided into two blocks. In the two power supply systems, the number of blue LEDs 121 connected in series is "30", and this "30" is the number of blocks "3" of the power supply system of the first light emitting unit 120 and the number of blocks of the second light emitting unit 125. The common multiple of "2" for the block number of the power system. Therefore, the electrical characteristics of the LED circuits in all the blocks can be equalized, so that stable lighting can be realized even at various color toning ratios. Furthermore, it is easy to obtain the spatial symmetry of the respective blocks of the two electrical systems on the substrate 110 , so that the color unevenness of the light emitting part 12 can be reduced or the color mixing performance can be improved. Moreover, the loss in the manufacturing process is greatly reduced, so that an inexpensive light-emitting module can be provided. In addition, at least a part of the blue LEDs in the blue LEDs 121 used in the light-emitting module can also be changed into red LEDs.

As mentioned above, although this invention was demonstrated using embodiment, the technical scope of this invention is not limited to the range described in the said embodiment. It will be clear to those skilled in the art that various modifications and improvements can be added to the above-described embodiments. Moreover, it should be clear from the description of a claim that the form to which such a change or improvement was added is also included in the technical range of this invention.

Claims (4)

1. a light emitting module, is characterized in that comprising:

Multiple 1st illuminating part, is arranged in the regulation region on substrate, sends the light of the 1st colour temperature; And

Multiple 2nd illuminating part, is arranged in described regulation region, sends the light of the 2nd colour temperature,

Described in multiple 1st illuminating part one, the 1st illuminating part is arranged on the central portion in described regulation region,

2nd illuminating part is arranged with the 1st illuminating part being arranged at described central portion is adjacent,

The 2nd illuminating part arranged relative to adjoining with the 1st illuminating part, is being contrary side with the side residing for the 1st illuminating part being arranged at described central portion, and then is being provided with the 1st illuminating part.

2. light emitting module according to claim 1, is characterized in that,

Described 1st colour temperature is higher than described 2nd colour temperature.

3. light emitting module according to claim 1 and 2, is characterized in that,

1st illuminating part comprises light-emitting component and red-emitting phosphors, and described light-emitting component sends the light of the 3rd colour temperature, and the light of the 3rd colour temperature that described light-emitting component sends by described red-emitting phosphors converts the light of red colour temperature to,

2nd illuminating part comprises described light-emitting component and described red-emitting phosphors,

To the quantity, identical with the quantity the 2nd illuminating part being supplied to the described light-emitting component in the power-supply system of electric power of the described light-emitting component in the power-supply system of the 1st illuminating part supply electric power.

4. a lighting device, is characterized in that comprising:

Light emitting module according to any one of claim 1 to 3;

Power supply unit, controls the electric power being supplied to described light emitting module; And

Reflecting plate, reflects the light that described light emitting module sends.