CN202274328U - Light source module and light emitting device with the light source module - Google Patents

Abstract

A light source module and light-emitting device with the light source module, the light source module includes a light-emitting unit, a light guide pole and a first reflecting element, the light-emitting unit has an optical axis and includes at least one light-emitting diode; the light guide column comprises a base part and a light guide part extending from the base part along the optical axis direction, the light emitting unit is arranged on the base part, the tail end of the light guide part is provided with a top surface, the top surface is concave towards the base part direction, and the curvature of the top surface is continuously distributed; the first reflection element is arranged on the top surface. Wherein, the partial light that this luminescence unit sent transmits this first reflection component through this leaded light post, and this first reflection component reflects this partial light and makes this partial light go out the light-emitting from this light guide portion. The utility model also provides a illuminator of having above-mentioned light source module.

Description

Light source module and light emitting device with the light source module

technical field

The utility model relates to a light emitting device, in particular to a light emitting diode light emitting device.

Background technique

Light emitting diode (light emitting diode, LED) is a kind of semiconductor element, which mainly converts electrical energy into light energy through semiconductor compounds to achieve luminous effect. Therefore, it has the advantages of long life, high stability and low power consumption, and has been widely used. It is widely used in home, office, outdoor and mobile lighting to replace traditional non-directional light sources such as lamp tubes and incandescent bulbs.

Since the light emitting diode is a point light source and has high directivity, the illuminated area of the light emitting diode is narrower than that of the traditional light source, and the luminous brightness gradually decreases with the increase of the distance, so it is more suitable for providing short distance and small area Lighting lamps, such as: table lamps.

In order to apply light-emitting diodes to other lamps, such as light bulbs or candle lamps, most manufacturers combine and arrange multiple light-emitting diodes to concentrate the light to achieve the problem of too small illumination range; however, the increase in the number of light-emitting diodes is making The increase in power required to drive LEDs cannot effectively achieve the effect of power saving, and the price of LED lamps is much higher than that of traditional light sources, which makes users less willing to use LED lamps.

Utility model content

In view of the prior art, an object of the present invention is to provide a light source module, which can effectively expand the outgoing angle of the passing light.

Another object of the present utility model is to provide a light emitting device, which can effectively expand the outgoing angle of the passing light.

To achieve the above purpose, the utility model provides a light source module, comprising:

A light emitting unit having an optical axis, the light emitting unit comprising at least one light emitting diode;

A light guide column, the light guide column includes a base, a light guide part extending from the base along the optical axis, the end of the light guide part has a top surface, the top surface is concave toward the base part, and the top surface the curvature is continuous; and

a first reflective element disposed on at least a portion of the top surface;

Wherein, part of the light emitted by the light emitting unit is transmitted to the first reflective element through the light guide column, and the first reflective element reflects the part of the light and makes the part of the light go out from the light guide part.

In the above light source module, the diameter of the light guide portion increases gradually as it gets away from the base portion.

The light source module above, wherein the light guide column further includes a plurality of planes extending perpendicular to the direction of the optical axis, the distance between any two planes increases with distance from the base, and there is a connection surface between any two planes, and the connection surface and the The distance of the optical axis decreases as one approaches the base.

The above-mentioned light source module further includes at least one second reflective element disposed on at least one of the planes.

The above-mentioned light source module further includes a fluorescent layer disposed on a light-emitting surface, and the light-emitting surface connects the base and the top surface.

In the above-mentioned light source module, the light guide column further includes a groove, the groove is recessed from the base toward the light guide portion and forms a light incident surface, and the light emitting diode is disposed in the groove.

The above-mentioned light source module further includes a fluorescent layer disposed on the light-incident surface.

In the above light source module, the light emitting unit further includes a circuit board, and the light emitting diode is arranged on the circuit board.

In the above light source module, wherein the first reflective element is disposed on the central portion of the top surface.

In the above light source module, the first reflective element is disposed on the periphery of the top surface.

In the above light source module, wherein the first reflective element completely covers the top surface.

The light source module above, wherein the light emitting diode is a high power light emitting diode or a high power polycrystalline package light emitting diode.

In order to achieve the above purpose, the utility model also provides a light emitting device, comprising:

a body;

A light source module is arranged on the base, and the light source module includes:

A light emitting unit having an optical axis, the light emitting unit comprising at least one light emitting diode;

A light guide column, the light guide column includes a base and a light guide part extending from the base along the optical axis, the end of the light guide part has a top surface, the top surface is concave toward the base part, and the curvature of the top surface is continuous; and

a first reflective element disposed on at least a portion of the top surface;

a lampshade, combined with the base body, so that the light source module is located between the lampshade and the base body; and

a conductive joint connected to the base and opposite to one side of the lampshade;

Wherein, part of the light emitted by the light emitting unit is transmitted to the first reflective element through the light guide column, and the first reflective element reflects the part of the light and makes the part of the light emerge from the light guide part and then transmit to the lampshade to emit light.

In the above-mentioned light-emitting device, the diameter of the light guide portion gradually increases as it gets away from the base portion.

The light-emitting device above, wherein the light guide column further includes a plurality of planes extending perpendicular to the direction of the optical axis, the distance between any two planes increases as the distance between the two planes increases, and there is a connection surface between any two planes, and the connection surface and the The distance of the optical axis decreases as one approaches the base.

The above-mentioned light-emitting device further includes at least one second reflective element disposed on at least one of the planes.

In the above-mentioned light-emitting device, the light source module further includes a fluorescent layer disposed on a light-emitting surface, and the light-emitting surface connects the base and the top surface.

In the above-mentioned light-emitting device, the light-guiding column further includes a groove, the groove is recessed from the base toward the light-guiding portion to form a light-incident surface, and the light-emitting diode is disposed in the groove.

In the above-mentioned light-emitting device, the light source module further includes a fluorescent layer disposed on the light-incident surface.

In the above light-emitting device, a plurality of microstructures are arranged on an outer surface of the lampshade.

In the above light emitting device, the light emitting unit further includes a circuit board, and the light emitting diode is arranged on the circuit board.

In the above-mentioned light-emitting device, the first reflective element is disposed on the central portion of the top surface.

In the above light emitting device, the first reflective element is disposed on the periphery of the top surface.

In the above light emitting device, wherein the first reflective element completely covers the top surface.

The above-mentioned light-emitting device, wherein the light-emitting diode is a high-power light-emitting diode or a high-power polycrystalline package light-emitting diode.

The above-mentioned light-emitting device further includes a reflective layer disposed on the circuit board.

The light source module of the utility model uses the light guide rod to change the path of the light, so as to effectively expand the outgoing angle of the light passing through the light guide rod, so as to be suitable for commonly used lamps today.

The utility model will be described in detail below in conjunction with the accompanying drawings and specific embodiments, but not as a limitation of the utility model.

Description of drawings

Fig. 1 is a perspective view of a light emitting device according to a first embodiment of the present invention;

Fig. 2 is a cross-sectional view of the light emitting device of the first embodiment of the present invention;

3 is a cross-sectional view of the light source module of the first embodiment of the present invention;

Fig. 4 is a perspective view of the light guide column of the first embodiment of the present invention;

Fig. 5 is a light intensity distribution diagram of light passing through the light guide column shown in Fig. 4;

Fig. 6 is a light intensity distribution diagram of the light source module corresponding to the first embodiment of the present invention;

Fig. 7 is a perspective view of a light guide column according to a second embodiment of the present invention;

Fig. 8 is a light intensity distribution diagram of light passing through the light guide column shown in Fig. 7;

Fig. 9 is a perspective view of a light guide column according to a third embodiment of the present invention;

Fig. 10 is a light intensity distribution diagram of light passing through the light guide column shown in Fig. 9;

11 is a cross-sectional view of a light source module according to a fourth embodiment of the present invention;

Fig. 12 is a cross-sectional view of a light source module according to a fifth embodiment of the present invention;

Fig. 13 is a light intensity distribution diagram of the light emitting device corresponding to the first embodiment of the present invention;

Fig. 14 is a perspective view of a light source module according to a sixth embodiment of the present invention;

Fig. 15 is a light intensity distribution diagram corresponding to the light source module shown in Fig. 14;

Fig. 16 is a perspective view of a light guide column according to a seventh embodiment of the present invention;

Fig. 17 is a perspective view of a light guide column according to an eighth embodiment of the present invention;

Fig. 18 is a cross-sectional view of a light emitting device according to a second embodiment of the present invention;

Fig. 19 is a perspective view of a light source module according to a fourth embodiment of the present invention;

Fig. 20 is a light intensity distribution diagram of light passing through the light guide column shown in Fig. 18;

FIG. 21 is a light intensity distribution diagram of the light emitting device corresponding to the second embodiment of the present invention.

Among them, reference signs

10, 20 light emitting device

110 seat body

120, 120a, 120b, 120c, 120d, 120e, 220 light source module

122 lighting units

1220 circuit board

1221 reflective layer

1222 LED

124, 224 light guide column

1240, 2240 base

1242, 2242 light guide

1244, 2244 top surface

1246, 2246 light emitting surface

1248, 2248 plane

1249, 2249 connection surface

125, 225 grooves

1250 incident surface

126, 226 first reflective element

128a, 128b fluorescent layer

129 second reflective element

130, 230 shade

132, 232 outer surface

134, 234 inner surface

140 conductive connector

236 Microstructure

I optical axis

Detailed ways

Please refer to the accompanying drawings, the above and additional purposes, features and advantages of the present utility model will be better understood through the following illustrative and non-limiting detailed descriptions of preferred embodiments of the present utility model, in the accompanying drawings In the drawings, the same reference numerals are used for the same or similar elements.

Referring to FIG. 1 and FIG. 2 , they are respectively a perspective view and a cross-sectional view of a light emitting device according to a first embodiment of the present invention. The light emitting device 10 includes a base 110 , a light source module 120 , a lampshade 130 and a conductive connector 140 .

The base body 110 can preferably be made of metal material or coated with a heat-conducting material on the surface of the metal material, so as to increase the speed of heat conduction; or, the base body 110 can be made of heat-conducting plastic, and the inside of the heat-conducting plastic base body contains At least one material with high thermal conductivity, such as metal powder, graphite powder or ceramic powder, can effectively conduct away the heat energy generated by the light source module 120, and has the advantages of easy fabrication and high insulation. In addition, the outer wall of the base body 110 may also be provided with multiple heat sinks (not shown), so as to conduct away the heat generated by the light source module 120 more effectively.

Referring to FIG. 3 , it is a cross-sectional view of the light source module according to the first embodiment of the present invention. The light source module 120 includes a light emitting unit 122 , a light guide bar 124 and a first reflective element 126 .

The light emitting unit 122 has an optical axis I, and the light emitting unit 122 includes a circuit board 1220 and at least one light emitting diode (LED) 1222 . The circuit board 1220 is arranged on the base body 110 (as shown in FIG. 2 ). The circuit board 1220 is pre-set with multi-circuit wiring (not shown) and welding pads (not shown). The circuit board 1220 can be a printed circuit board. (Printed Circuit Board, PCB), metal-based printed circuit board (Metal Core PCB), ceramic circuit board (Ceramic PCB) or composite material PCB (Composite material PCB) can quickly dissipate the heat energy generated by the light emitting diode 1222.

The light emitting diode 1222 is arranged on the circuit board 1220 and is electrically connected to the circuit board 1220. In this embodiment, one light emitting diode 1222 is taken as an example, and the light emitting diode 1222 is preferably a high-power light emitting diode. In this case, the light-emitting diode 1222 may be a high-power polycrystalline package light-emitting diode (multi-chip LED).

The light guide column 124 is made of light-transmitting materials, such as: polymethyl methacrylate (PMMA), synthetic resin, acryl, polycarbonate (PC), polyester (PET), polyolefin (Polyolefins), glass Or a combination of the above materials. At the same time, refer to FIG. 4 , which is a perspective view of the light guide column according to the first embodiment of the present invention. The light guide bar 124 has a base portion 1240 , a light guide portion 1242 and a groove 125 . The light emitting unit 122 is disposed on the base 1240 , and the axis of the light guide column 124 coincides with the optical axis I of the light emitting unit 122 .

The light guide part 1242 is extended from the base part 1240 along the direction of the optical axis I. The end of the light guide part 1242 has a top surface 1244, and the top surface 1244 is concaved in an arc shape toward the base part 1240, and The curvature of the top surface 1244 is continuously distributed; in addition, the tangent of the top surface 1244 at the passage of the optical axis I is approximately perpendicular to the optical axis I, so as to reflect the light traveling to the top surface 1244 . In this embodiment, the light guide part 1242 is a cylinder as an example, and in actual implementation, the light guide part 1242 can be any polygonal cylinder. Moreover, the diameter of the light guide part 1242 increases gradually as it gets away from the base part 1240, so that the cross section of the light guide part 1242 is roughly trapezoidal, so as to improve the transmission of the light incident on the light guide part 1242 by total internal reflection. probability. The light guiding portion 1242 also includes a light emitting surface 1246 connected to the bottom 1240 and the top surface 1244 .

The groove 125 is recessed from the base portion 1240 toward the light guide portion 1242 to form a light incident surface 1250. The light emitting diode 1222 is disposed in the groove 125 so that the light guide column 124 surrounds the light emitting diode 1222. The diode 1222 emits light toward the light incident surface 1250 .

Furthermore, the light guide part 1242 is provided with a plurality of planes 1248 perpendicular to the direction of the optical axis I near the base 1240, the diameter of the planes 1248 is approximately equal to the diameter of the top surface 1244, and the adjacent two planes 1248 The pitch increases with distance from the base 1240 . In this embodiment, the number of the planes 1248 is three as an example, which is not limited in actual implementation. There is a connection surface 1249 between any two planes 1248, and the distance between the connection surface 1249 and the optical axis I gradually decreases as it approaches the base 1240 so that any two planes 1248 are connected in an inclined plane, that is, the connection surface 1249 The distance from the optical axis I gradually decreases from the edge of a plane 1248 farther from the base 1240 and is connected to another plane 1248 closer to the base 1240 . The planes 1248 and the connection surfaces 1249 can increase the probability of refracting light from the light guide part 1242 adjacent to the base part 1240 .

Part of the light emitted by the light emitting diode 1222 is directly refracted from the connection surface 1249 or the plane 1248, and other part of the light is guided to the top surface 1244 by the light guide part 1242 in the form of total internal reflection. , and the light is refracted on the top surface 1244 , and the light intensity distribution of the light passing through the light guide rod 124 is shown in FIG. 5 .

Referring to FIG. 3 again, the first reflective element 126 is arranged on the top surface 1244, so that at least a part of the light transmitted to the top surface 1244 is reflected. The first reflective element 126 can be, for example, a metal film or a glue of a resin material. , the rubber material can be white or silver and other colors with better reflection effects. In actual implementation, the color of the first reflective element 126 can be adjusted according to actual needs or restrictions; or, the first reflective element 126 can use a The first reflective element 126 is transparent (or at least translucent), and the refractive index of the first reflective element 126 is smaller than the refractive index of the light guide column 124 .

In this embodiment, the first reflective element 126 is arranged on the top surface 1244, so that the light transmitted to the top surface 1244 is reflected, and the corresponding light intensity distribution diagram is shown in FIG. 6; Compared with FIG. 5 , the first reflective element 126 can reflect the light transmitted to the top surface 1244 , so that the traveling path of the light is changed, and the light is emitted from the light exit surface 1246 , thereby expanding the exit angle of the light.

In addition, the first reflective element 126 can only be arranged on the central part of the top surface 1244, so that the periphery of the top surface 1244 forms a light-transmitting area, as shown in FIG. Light, its light intensity distribution diagram is as shown in Figure 8; Alternatively, the first reflective element 126 can be arranged on the periphery of the top surface 1244, so that the central part of the top surface 1244 forms a light-transmitting area, as shown in Figure 9 , to reflect the light transmitted to the periphery of the top surface 1244 , and its light intensity distribution diagram is shown in FIG. 10 .

Moreover, the light source module 128 can also include a phosphor, which can be evenly distributed inside the light guide column 124, so that the light passing through the light guide column 124 undergoes wavelength conversion with the phosphor to generate a The wavelength converts the light so that the user can change the color of the phosphor according to the desired light color. In addition, in a variation of the present invention, the light source module 120a may include a fluorescent layer 128a, as shown in FIG. The wavelength of the light is converted by the fluorescent layer 128a, so that the light transmitted to the light guiding portion 1242 is a wavelength-converted light. Moreover, in another variant form of the present invention, the light source module 120b can also include a fluorescent layer 128b, as shown in FIG. The light at 1246 undergoes wavelength conversion with the fluorescent layer 128b, so that the light emitted from the light guide rod 124 to the outside is a wavelength-converted light.

Referring again to FIG. 1 , FIG. 2 and FIG. 3 , the lampshade 130 is combined with the base body 110 to seal the light source module 120 , and the lampshade 130 is made of transparent materials such as resin, plastic or glass. In this embodiment, the lampshade 130 is a spherical shade. In actual implementation, the lampshade 130 can be a candle lamp-shaped or other special lamp-shaped shade according to different applications, and the lampshade 130 can be shaped according to requirements. The light transmittance is different and it is transparent, translucent or foggy. The translucent lampshade 130 can be divided into an outer surface 132 of the lampshade 130 that is foggy, or an inner surface of the lampshade 130. 134 is two kinds of different implementation states of matte shape.

When the light emitting unit 122 is turned on, the light emitted by the light emitting diode 1222 enters the light guide portion 1242 from the light incident surface 1250 . Part of the light incident to the light guide part 1242 is directly emitted from the light exit surface 1246, wherein the incident angle of this part of the light is smaller than the total internal reflection angle; other part of the light is guided to the top surface through the light guide part 1242 1244, and after being reflected by the first reflective element 126 arranged on the top surface 1244, the light exits from the light exit surface 1246, wherein the incident angle of the other part of the light is greater than or equal to the critical angle of total internal reflection; The light emitted from the surface 1246 is transmitted to the outside after passing through the lampshade 130 , and its light intensity distribution diagram is shown in FIG. 13 . Since the cross-section of the light guide part 1242 is roughly trapezoidal, the light rays with an incident angle greater than or equal to the critical angle of total internal reflection are continuously transmitted back and forth in the light guide part 124 until they reach the top surface 1244 and pass through the first The reflective element 126 reflects and then emits light from the light emitting surface 1246 .

Referring to Fig. 1 and Fig. 2 again, the conductive connector 140 is connected to the opposite side of the lampshade 130 of the seat body 110, and the conductive connector 140 is screwed into a general light bulb socket for electrical connection to an AC power supply. In this embodiment, the conductive connector 140 may be an E26 or E27 conductive connector, but it is not limited to this in actual implementation.

In addition, the circuit board 1220 can also be provided with a reflective layer 1221, as shown in the second figure, the reflective layer 1221 can be a highly reflective material, such as: a film made of chrome or aluminum, or a surface coated or adhesive A plastic sheet coated with a highly reflective material.

Referring to FIG. 14 , it is a perspective view of the light guide column according to the fourth embodiment of the present invention. The light source module 120c of this embodiment is substantially the same as the above-mentioned first embodiment, the difference is that it also includes at least one second reflective element 129, and the second reflective element 129 is arranged on at least one plane 1248 therein for reflecting Light passing to the plane 1248 smoothes the angle of the overall outgoing light. The second reflective element 129 can be, for example, a metal film or a glue of resin material, and the glue can be white or silver or other color with better reflection effect; or, the second reflective element 129 can use a light-transmitting made of glue (such as UV glue), wherein the second reflective element 129 is transparent (or at least translucent), and the refractive index of the second reflective element 129 is smaller than the refractive index of the light guide column 124 . Moreover, the second reflective material 129 can be the same as the first reflective material 126 , or the second reflective material 129 can be different from the first reflective material 126 . In this embodiment, the second reflective element 129 is disposed on the plane 1248 closest to the top surface 1244 , but it is not limited to this in actual implementation. The light intensity distribution corresponding to the light source module 120c is shown in FIG. 15 .

In addition, in another variation of the present invention, the light source module 120d may include a plurality of second reflective elements 129, and these reflective elements 129 are respectively arranged on the planes 1248, as shown in FIG. Rays to the planes 1248. In this embodiment, the number of the planes is three, and the number of the second reflective elements 129 is also three, and the second reflective elements 129 are correspondingly disposed on the planes 1248 . Moreover, in another variant form of the present utility model, the second reflective element 129 of the light source module 120e can only be arranged on two planes 1248 therein, as shown in FIG. 17; in this embodiment, the planes 1248 The number is three, and the number of these reflective elements 129 can be two. The two reflective elements 129 are arranged on the two planes 1248, and the two second reflective elements 129 are arranged on the top surface 1244. The second plane 1248 is not limited to this in actual implementation.

Referring to FIG. 18 and FIG. 19 , they are respectively a sectional view of the light emitting device according to the second embodiment of the present invention and a perspective view of the light source module according to the fourth embodiment of the present invention. The light emitting device 20 of this embodiment is substantially the same as the above-mentioned first embodiment, the difference lies in the light guide rod 224 of the light source module 220 and the lampshade 230 .

The light guide bar 224 of the light source module 220 includes a base 2240 and a light guide 2242 , and the light emitting unit 122 is disposed on the base 2240 . The light guiding part 2242 is extended from the base part 2240 along an optical axis direction of a light emitting unit 1222 . The end of the light guiding part 2242 has a top surface 2244 , the top surface 2244 is arc-shaped concave toward the direction of the base part 2240 , and the curvature of the top surface 2244 is continuously distributed.

The diameter of the light guide part 2242 increases gradually as it gets away from the base part 2240, so that the cross section of the light guide part 2242 is roughly trapezoidal; and the top surface 2244.

The top surface 2244 is provided with a first reflective element 226 . In this embodiment, the first reflective element 226 is disposed on the top surface 2244 so as to reflect the light transmitted to the top surface 2244 . In practical implementation, the first reflective element 226 may only be disposed on the central portion of the top surface 2244 , or, the first reflective element 226 may be disposed on the periphery of the top surface 2244 .

The light guide part 2242 is provided with a plurality of planes 2248 perpendicular to the direction of the optical axis I near the base 2240. The diameter of the planes 2248 is approximately equal to the diameter of the top surface 2244, and the distance between two adjacent planes 2248 varies with Increments away from the base 2240. In this embodiment, the number of the planes 2248 is four as an example, which is not limited in actual implementation. There is a connection surface 2249 between any two planes 2248 , and the distance between the connection surface 2249 and the optical axis I decreases gradually as it approaches the base 2240 so that any two planes 2248 are connected in an inclined plane.

The light emitting diode 1222 is arranged in the groove 225, so that the light guiding column 224 surrounds the light emitting diode 1222, and the light emitting diode 1222 emits light toward the light guiding portion 2242, and the light intensity distribution of the light passing through the light guiding column 224 is as follows: Figure 20 shows.

In addition, a reflective layer 1221 can also be provided on the circuit board 1220, and the reflective layer 1221 can be a high reflective material, such as: a film made of aluminum or chrome, or a film coated or pasted with a high reflective material. Plastic piece. The light source module 220 can include at least one second reflective layer, and the second reflective layer is arranged on at least one plane 2248; the number of the second reflective layer can be one or more, and the second reflective layer is arranged on one of the planes 2248 or a plurality of planes 2248 therein, or the number is correspondingly set on these planes 2248 . The detailed description thereof is the same as that of the light source modules of the sixth embodiment, the seventh embodiment and the eighth embodiment, and will not be repeated here. In addition, the light source module 220 may further include a fluorescent layer, and the fluorescent layer may be disposed on a light incident surface of the light guide column 224 or the light output surface 2246, and the detailed description thereof is the same as that of the light sources of the fourth embodiment and the fifth embodiment. module, which will not be described in detail here.

Referring to FIG. 18 again, an outer surface 232 of the lampshade 230 includes many microstructures 236, and the microstructures 236 may preferably be circular or hexagonal, but not limited thereto in actual implementation; or, the microstructures 236 It can be disposed on an inner surface 234 of the lampshade 230 . The microstructure 236 is mainly used to eliminate the halo generated by the light source module 220 so as to enhance the luminous effect of the light emitting device 20 . The lampshade 230 is combined with the base body 110 to seal the light source module 220 , and the light intensity distribution diagram of the light emitting device 20 is shown in FIG. 21 .

Based on the above, the light source module of the present invention uses the light guide rod to change the path of the light, thereby effectively expanding the outgoing angle of the light passing through the light guide rod, so as to be suitable for commonly used lamps today.

Of course, the utility model can also have other various embodiments, and those skilled in the art can make various corresponding changes and deformations according to the utility model without departing from the spirit and essence of the utility model, but These corresponding changes and deformations should all belong to the protection scope of the appended claims of the present utility model.

Claims (26)

1. a light source module is characterized in that, comprises:

One luminescence unit has an optical axis, and this luminescence unit comprises at least one light emitting diode;

One leaded light post, this leaded light post comprise a base portion, by the light guide section of this base portion along this optical axis extension, and this light guide section end has an end face, and this end face is towards this base portion direction depression, and the curvature of this end face is continuous; And

One first reflecting element is arranged at least a portion of this end face;

Wherein, the part light that this luminescence unit sends is passed to this first reflecting element via this leaded light post, and this part light of this first reflected also makes this part light by this light guide section bright dipping.

2. light source module according to claim 1 is characterized in that, the diameter of this light guide section is along with increasing progressively away from this base portion gradually.

3. light source module according to claim 2; It is characterized in that; This leaded light post also comprises the plane that a plurality of vertical these optical axis directions extend; The spacing on any two planes has a joint face along with increasing progressively away from this base portion between any two planes, the distance of this joint face and this optical axis is successively decreased along with moving closer to this base portion.

4. light source module according to claim 3 is characterized in that, also comprises at least one second reflecting element, be arranged at said plane at least one of them.

5. light source module according to claim 1 is characterized in that, also comprises a fluorescence coating, is arranged at an exiting surface, and this exiting surface connects this base portion and this end face.

6. light source module according to claim 1 is characterized in that, this leaded light post also comprises a groove, and towards this light guide section depression and form an incidence surface, this light emitting diode is arranged at this groove to this groove by this base portion.

7. light source module according to claim 6 is characterized in that, also comprises a fluorescence coating, is arranged at this incidence surface.

8. light source module according to claim 1 is characterized in that this luminescence unit also comprises a circuit board, and this light emitting diode is arranged at this circuit board.

9. light source module according to claim 1 is characterized in that this first reflecting element is arranged at the core of this end face.

10. light source module according to claim 1 is characterized in that this first reflecting element is arranged at the periphery of this end face.

11. light source module according to claim 1 is characterized in that, this first reflecting element covers this end face fully.

12. light source module according to claim 1 is characterized in that, this light emitting diode is High Power LED or high power polycrystalline encapsulation LED.

13. a light-emitting device is characterized in that, comprises:

One pedestal;

One light source module is arranged at this pedestal, and this light source module comprises:

One luminescence unit has an optical axis, and this luminescence unit comprises at least one light emitting diode;

One leaded light post, this leaded light post comprise a base portion and by the light guide section of this base portion along this optical axis extension, and this light guide section end has an end face, and this end face is towards this base portion direction depression, and the curvature of this end face is continuous; And

One first reflecting element is arranged at least a portion of this end face;

One lampshade combines with this pedestal, makes this light source module as between this lampshade and this pedestal; And

One conductive contact connects this pedestal and is oppositely arranged a side of this lampshade;

Wherein, the part light that this luminescence unit sends is passed to this first reflecting element via this leaded light post, this part light of this first reflected and make this part light by this light guide section bright dipping after be passed to this lampshade bright dipping again.

14. light-emitting device according to claim 13 is characterized in that, the diameter of this light guide section is along with increasing progressively away from this base portion gradually.

15. light-emitting device according to claim 1; It is characterized in that; This leaded light post also comprises the plane that a plurality of vertical these optical axis directions extend; The spacing on any two planes has a joint face along with increasing progressively away from this base portion between any two planes, the distance of this joint face and this optical axis is successively decreased along with moving closer to this base portion.

16. light-emitting device according to claim 15 is characterized in that, also comprises at least one second reflecting element, be arranged at said plane at least one of them.

17. light-emitting device according to claim 13 is characterized in that, this light source module also comprises a fluorescence coating, is arranged at an exiting surface, and this exiting surface connects this base portion and this end face.

18. light-emitting device according to claim 13 is characterized in that, this leaded light post also comprises a groove, and towards this light guide section depression and form an incidence surface, this light emitting diode is arranged at this groove to this groove by this base portion.

19. light-emitting device according to claim 18 is characterized in that, this light source module also comprises a fluorescence coating, is arranged at this incidence surface.

20. light-emitting device according to claim 13 is characterized in that, an outer surface of this lampshade is provided with a plurality of micro-structurals.

21. light-emitting device according to claim 13 is characterized in that, this luminescence unit also comprises a circuit board, and this light emitting diode is arranged at this circuit board.

22. light-emitting device according to claim 13 is characterized in that, this first reflecting element is arranged at the core of this end face.

23. light-emitting device according to claim 13 is characterized in that, this first reflecting element is arranged at the periphery of this end face.

24. light-emitting device according to claim 13 is characterized in that, this first reflecting element covers this end face fully.

25. light-emitting device according to claim 13 is characterized in that, this light emitting diode is High Power LED or high power polycrystalline encapsulation LED.

26. light-emitting device according to claim 21 is characterized in that, also comprises a reflecting layer, is arranged on this circuit board.

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