CN102865464B - Light-emitting diode (LED) lamp source - Google Patents
Light-emitting diode (LED) lamp source Download PDFInfo
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- CN102865464B CN102865464B CN201110189357.5A CN201110189357A CN102865464B CN 102865464 B CN102865464 B CN 102865464B CN 201110189357 A CN201110189357 A CN 201110189357A CN 102865464 B CN102865464 B CN 102865464B
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- radiating block
- led lamp
- optical surface
- light reflection
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Abstract
The invention relates to a light-emitting diode (LED) lamp source. The LED lamp source comprises a radiating block, a lamp source panel, a light reflection support and a secondary optical element. The lamp source panel consists of a circuit board positioned on the radiating block and a light-emitting element positioned on the circuit board. The light reflection support is arranged on the lamp source panel and comprises a panel part and a light reflection column. The panel part is provided with a plurality of openings exposed out of the light-emitting element. The light reflection column is positioned on the panel part and physically connected with the panel part. The secondary optical element covers the lamp source panel and the light reflection support and is physically connected with the radiating block. The secondary optical element is provided with a first optical surface and a second optical surface. The first optical surface is connected with the radiating block and the second optical surface. The absolute value of slope of a tangential line of any point on the first optical surface is substantially constant. The absolute value of slope of a tangential line of any point on the second optical surface is gradually decreased towards the direction far away from the radiating block.
Description
Technical field
The present invention relates to a kind of lamp source, and relate in particular to evenly LED lamp source preferably of a kind of light.
Background technology
Because the development of light emitting diode (LED) is used in bulb widely, to reduce power consumption, meet the trend of environmental protection.Yet because LED has the light source output characteristics of spot light, high brightness, arrow beam of light, and its mechanical property is also different with conventional lamp product from considering of production reliability.Various countries start, for solid-state illumination field, to comprise the application such as road lighting, outdoor lighting, room lighting at present, development coherent detection standard.
It is actually rare that light emitting diode bulb ball meets the product of Energy Star (Energy Star) standard in the market, and its main cause is that the directive property of the light that provides due to light emitting diode itself is strong, that is lumination of light emitting diode has directionality.Moreover the position that light emitting diode is put in bulb ball can be subject to the impact of internal drive circuits and radiating block and limit to some extent.In general, illumination mostly at present is 120 degree angle designs with the rising angle of High Power LED, and how to reach in structure and optical design, still has target even and that the enough light emitting diode bulb ball Shi Weigejia manufacturers of luminous intensity make great efforts in the situation that rising angle is wide.
Figure 1A is the schematic diagram of existing LED lamp source, the schematic diagram of the optical field distribution that Figure 1B provides for the LED lamp source of Figure 1A.Please also refer to Figure 1A and Figure 1B, the lampshade 110 of existing LED lamp source 100 is generally hemispherical, so the light that the light emitting diode (not shown) that is positioned at lamp source 100 provides is when by lampshade, outgoing is in lamp source 100, its distribution of light intensity distribute still can concentrations in central authorities, and make performing poor of the uniformity and rising angle.
Summary of the invention
The present invention proposes a kind of LED lamp source, and it has preferably radiator structure, and can provide more homogenising and the larger illumination zone of angle simultaneously.
Other objects of the present invention and advantage can be further understood from disclosed technical characterictic.
For reaching one of above-mentioned or partly or entirely object or other objects, one embodiment of the invention provide a kind of LED lamp source, and it comprises radiating block, lamp source plate, light reflection support and secondary optics element.Lamp source plate is positioned on radiating block, and lamp source plate comprises circuit board and a plurality of light-emitting component.Circuit board is positioned on radiating block, and light-emitting component is arranged on circuit board.Light reflection support is arranged on lamp source plate.Light reflection support comprises flat part and light reflection cylinder.Flat part is disposed on circuit board and has a plurality of openings, to expose these light-emitting components.Light reflection cylinder is positioned on flat part and entity connects flat part.Secondary optics element covers lamp source plate and is connected radiating block with light reflection support entity.Secondary optics element is mixed with a plurality of diffusion particles and has the first optical surface and the second optical surface.The first optical surface connects radiating block and the second optical surface, wherein on the first optical surface, the slope absolute value of the relative radiating block of tangent line of any point is essentially fixingly, and on the relative radiating block of the second optical surface, the tangent slope absolute value of any point diminishes gradually in the direction toward away from radiating block.
In an embodiment of the present invention, radiating block has a plurality of the first radiating fins, these the first radiating fin cover part first optical surfaces.
In an embodiment of the present invention, each these light-emitting component is suitable for providing light beam.Segment beam be suitable for being directly passed to light reflection support and by light reflection cylinder, reflexed to secondary optics element and outgoing in LED lamp source.Segment beam be suitable for being directly passed to secondary optics element and outgoing in LED lamp source.
In an embodiment of the present invention, the material of light reflection support is heat-conducting.
In an embodiment of the present invention, LED lamp source also comprises heat dissipation element, and wherein heat dissipation element is disposed on secondary optics element.Heat dissipation element has locking perforate and a plurality of the second radiating fin, and these the second radiating fin cover part second optical surfaces.
In an embodiment of the present invention, LED lamp source also comprises lock member, and wherein lock member wears the locking perforate of heat dissipation element and is locked in the threaded hole of light reflection cylinder, so that heat dissipation element is locked on secondary optics element.
In an embodiment of the present invention, LED lamp source also comprises top cover, and wherein top cover is disposed in the locking perforate of heat dissipation element, to cover lock member.
In an embodiment of the present invention, light reflection cylinder is hollow cylinder.
In an embodiment of the present invention, LED lamp source also comprises heat conducting element, and wherein heat conducting element is arranged in light reflection cylinder.
In an embodiment of the present invention, on the first optical surface, the tangent line of any point and the angle between radiating block are greater than in fact 90 degree and are less than 180 degree.In an embodiment of the present invention, angle drops in fact between 116 degree and 146 degree.
In an embodiment of the present invention, secondary optics element also has plane, and the slope of the relative radiating block of its midplane is zero, and plane be positioned at circuit board directly over and connect the second optical surface.
In an embodiment of the present invention, secondary optics element also comprises a plurality of clamping parts, and these clamping parts are suitable for and radiating block buckle, so that secondary optics element is fixed on radiating block.
In an embodiment of the present invention, secondary optics element can be formed by a plurality of sub-optical element engagings.
In an embodiment of the present invention, LED lamp source also comprises driving element support, and wherein driving element support is connected in the bottom of radiating block.In driving element support, be suitable for being equiped with drive circuit, wherein drive circuit is electrically connected to lamp source plate.
In an embodiment of the present invention, LED lamp source also comprises lamp screw base, and wherein a part for driving element support is sticked in lamp screw base, and drive circuit is electrically connected to lamp screw base.
In an embodiment of the present invention, drive circuit is for exchanging the drive circuit that turns direct current.
One embodiment of the invention separately provide a kind of LED lamp source, and it comprises radiating block, lamp source plate, light reflection support and secondary optics element.Lamp source plate is positioned on radiating block, and lamp source plate comprises circuit board and a plurality of light-emitting component.Circuit board is positioned on radiating block, and light-emitting component is arranged on circuit board.Light reflection support is arranged on lamp source plate, and light reflection support comprises flat part and light reflection cylinder.Flat part is disposed on circuit board and has a plurality of openings, to expose these light-emitting components.Light reflection cylinder is positioned on flat part and entity connects flat part.Secondary optics element covers lamp source plate and is connected radiating block with light reflection support entity.Secondary optics element is mixed with a plurality of diffusion particles and has the first optical surface and the second optical surface.The first optical surface connects radiating block and the second optical surface, wherein on the first optical surface, the slope absolute value of the relative radiating block of tangent line of any point is essentially fixingly, and on the second optical surface, the slope absolute value of the relative radiating block of tangent line of any point becomes gradually after large and diminishes gradually again in the direction toward away from radiating block.
Based on above-mentioned, embodiments of the invention can reach at least one of following advantages or effect.LED lamp source can reach the all-round optical illumination of wide-angle by using secondary optics element, wherein the slope absolute value of the relative radiating block of the first optical surface of secondary optics element in the direction toward away from radiating block is essentially fixingly, and the slope absolute value of the relative radiating block of the second optical surface in the direction toward away from radiating block diminishes gradually.In addition, because secondary optics element is mixed with a plurality of diffusion particles, therefore, light beam except can by refraction mode outgoing in LED lamp source, also mode that can be by diffusion/scattering and outgoing, outside LED lamp source, and can provide more homogenising and the larger illumination zone of angle.Moreover, owing to being positioned at the other light reflection cylinder of light-emitting component, also can assist segment beam to reflex to secondary optics element, therefore also can make LED lamp source that more homogenising and the larger illumination zone of angle are also provided further.
For above-mentioned feature and advantage of the present invention can be become apparent, a plurality of embodiment cited below particularly, and coordinate accompanying drawing, be described in detail below.
Accompanying drawing explanation
Figure 1A is the schematic diagram of existing LED lamp source.
The schematic diagram of the optical field distribution that Figure 1B provides for the LED lamp source of Figure 1A.
Fig. 2 A is the schematic perspective view of the LED lamp source of one embodiment of the invention.
Fig. 2 B is the decomposing schematic representation of the LED lamp source of Fig. 2 A.
Fig. 3 A is the partial cutaway schematic that the light beam of the LED lamp source of Fig. 2 A is advanced.
The schematic diagram of the optical field distribution that Fig. 3 B provides for the LED lamp source of Fig. 2 A.
Fig. 4 A and Fig. 4 B are that angle is respectively the cuing open of LED lamp source of 116 degree and 146 while spending and shows schematic diagram.
The schematic diagram of the different enforcement states of secondary optics element that Fig. 5 A～Fig. 5 C is shown.
Fig. 6 shows the schematic diagram of the sub-optical element of secondary optics element.
Fig. 7 is the generalized section of the LED lamp source of another embodiment of the present invention.
Reference numeral:
200: LED lamp source
210: radiating block
212: the first radiating fins
220: lamp source plate
222: circuit board
224: light-emitting component
230: light reflection support
232: flat part
234: light reflection cylinder
232a: opening
240: secondary optics element
242: clamping part
244: diffusion particle
250: heat dissipation element
252: locking perforate
254: the second radiating fins
260: lock member
270: top cover
280: driving element support
290: lamp screw base
S1: the first optical surface
S2: the second optical surface
The specific embodiment
About aforementioned and other technology contents, feature and effect of the present invention, in the detailed description in following cooperation with reference to a plurality of embodiment of accompanying drawing, can clearly present.The direction term of mentioning in following examples, such as " on ", D score, 'fornt', 'back', " left side ", " right side " etc., be only the direction with reference to attached drawings.Therefore, the direction term of use is for explanation, but not is used for limiting the present invention.
Fig. 2 A is the schematic perspective view of the LED lamp source of one embodiment of the invention, Fig. 2 B is the decomposing schematic representation of the LED lamp source of Fig. 2 A, Fig. 3 A is the partial cutaway schematic that the light beam of the LED lamp source of Fig. 2 A is advanced, the schematic diagram of the optical field distribution that Fig. 3 B provides for the LED lamp source of Fig. 2 A.Please also refer to Fig. 2 A, Fig. 2 B, Fig. 3 A and Fig. 3 B, the LED lamp source 200 of the present embodiment comprises a radiating block 210, a lamp source plate 220, light reflection support 230 and a secondary optics element 240.Lamp source plate 220 is positioned on radiating block 210, and lamp source plate 220 comprises a circuit board 222 and a plurality of light-emitting component 224, and wherein circuit board 222 is positioned on radiating block 210, and light-emitting component 224 is arranged on circuit board 222.In the present embodiment, radiating block 210 can adopt the heat radiation material that thermal conductivity factor is high, and thus, the heat energy that lamp source plate 220 is driven produced just can be passed to outside effectively by radiating block 210, to dispel the heat.Wherein, in order to improve the radiating effect of LED lamp source 200, the radiating block 210 of the present embodiment also can have a plurality of the first radiating fins 212, and wherein these first radiating fins 212 can cover part secondary optics element 240.
Particularly, because radiating block 210 has a plurality of the first radiating fins 212, therefore the integral heat sink area of radiating block 210 just can increase significantly, thereby can make the heat energy that lamp source plate 220 produces by the mode of conduction, effectively be excluded from the outside of LED lamp source 200, so, lamp source plate 220 just can be relatively easily under normal operating temperature and there is higher service life.In other words, the present embodiment can promote effectively by the use of the first radiating fin 212 radiating effect of LED lamp source 200.Moreover, in order to improve further the integral heat sink effect of LED lamp source 200, the material of the circuit board 222 of lamp source plate 220 can be to select preferably heat-conducting substrate of thermal conductivity, meaning is that circuit board 222 can be selected metal-core printed circuit board (metal core printed circuit board, MCPCB), ceramic substrate or the good circuit board of other suitable thermal conductivity factors, this part is for illustrating, but is not limited to this.In the present embodiment, light-emitting component 224 is for example light-emitting diode, and each light-emitting component 224 is suitable for providing a light beam L1.
Please continue to refer to Fig. 2 A, Fig. 2 B and Fig. 3 A, light reflection support 230 is arranged on lamp source plate 220, and wherein light reflection support 230 comprises a flat part 232 and light reflection cylinder 234.Specifically, flat part 232 is arranged on circuit board 222 and has a plurality of opening 232a, and its split shed 232a can expose these light-emitting components 224, as shown in Fig. 2 B and 3A.In addition, light reflection cylinder 234 is positioned on flat part 232 and entity connects flat part 232.In the present embodiment, the directive property of the light beam L1 providing due to light-emitting component 224 is strong, therefore, LED lamp source 200 just can reflect segment beam L1 by being positioned at the other light reflection cylinder 234 of light-emitting component 224, thereby makes light beam L1 can present preferably optical uniformity in outgoing during in LED lamp source 200.In addition, light reflection support 230 is except can folded light beam L1, if suitably select light reflection support also can effectively promote the radiating effect of LED lamp source 200.In the present embodiment, light reflection cylinder 234 is a hollow cylinder.
In LED lamp source 200, because the flat part 232 of light reflection support 230 can be by aforesaid opening 232a and fixed light source plate 220 directly contacting with lamp source plate 220 simultaneously, if therefore the material of light reflection support 230 is heat-conductings of selecting thermal conductivity factor higher, the heat energy that lamp source plate 220 produces is except can dispelling the heat by aforementioned heat-conducting block 210, and its heat energy producing also can be passed to flat part 232 and dispel the heat with light reflection cylinder 234.Similarly, in order effectively to reflect the thermal energy conduction of cylinder 234 to the outside of LED lamp source, with improving radiating effect by being passed to flat part 232 with light.Therefore, LED lamp source 200 also can comprise a heat dissipation element 250 and a lock member 260, wherein heat dissipation element 250 is disposed on secondary optics element 240 and has a locking perforate 252 and a plurality of the second radiating fin 254, and lock member 260 wears the locking perforate 252 of heat dissipation element 250 and be connected to light reflection cylinder 234, as shown in Fig. 2 B and Fig. 3 A.
Particularly, lock member 260 wears the locking perforate 252 of heat dissipation element 250 and is locked in the threaded hole 234a of light reflection cylinder 234, and can make heat dissipation element 250 be locked on secondary optics element 240 and with light reflection cylinder 234, contact, if wherein lock member 260 is adopted as a thermal conductivity preferably during material, except can be effectively fixedly heat dissipation element 250 in secondary optics element 240, also can assist effectively to conduct to heat dissipation element 250 by being passed to flat part 232 with the heat energy of light reflection cylinder 234, thereby dispel the heat by the second radiating fin 254, and these the second radiating fin 254 cover part secondary optics elements 240, as Fig. 2 A, shown in Fig. 2 B and Fig. 3 A.In the present embodiment, the first radiating fin 212 and the second radiating fin 254 can contact, and form a heat dissipation circulating system, as shown in Figure 2 A.Yet in other embodiment, the first radiating fin 212 also can not contact with the second radiating fin 254, above are only and illustrates, but be not limited to this.
Please continue to refer to Fig. 2 A, Fig. 2 B and Fig. 3 A, secondary optics element 240 covers lamp source plate 220 and is connected radiating block 210 with light reflection support 230 entity.Specifically, secondary optics element 240 has one first optical surface S1 and one second optical surface S2, and wherein the first optical surface S1 connects radiating block 210 and the second optical surface S2.Specifically, the slope absolute value of going up the relative radiating block 210 of tangent line of any point due to the first optical surface S1 is essentially fixing, and the slope absolute value of the relative radiating block 210 of tangent line of the upper any point of the second optical surface S2 diminishes gradually in the direction toward away from radiating block 210, therefore, the segment beam L1 that carrys out self-emission device 224 when being passed to the first optical surface S1 and the second optical surface S2, just can effectively be refracted and outgoing outside LED lamp source 200, and make LED lamp source 200 can provide the uniform light field of wide-angle to distribute.
In LED lamp source 200, the secondary optics element 240 of the present embodiment is mixed with a plurality of diffusion particles 244, thus, light beam L1 except can by refraction mode outgoing in LED lamp source 200, also can outgoing outside LED lamp source 200, as shown in Figure 3A, and then can further provide the illumination zone that angle is larger by the mode of diffusion/scattering, meaning can present the illumination of all-round light, the optical field distribution as shown in Fig. 3 B.From Fig. 3 B, the LED lamp source 200 of the present embodiment can reflect by light the bang path of support 230 and secondary optics element change light beam L1, thereby can make LED lamp source 200 can reach the illumination of all-round light, for example: the light angle of the LED lamp source 200 of the present embodiment can reach 309 degree, and the light uniformity is all to drop on 0.78～0.8 in this light angle.In other words, compared to the light angle in traditional light emitting diode bulb/lamp source, only can drop on 286 degree and the light uniformity only 0.4～0.6, the LED lamp source 200 of the present embodiment is to have outside the illumination zone that angle is larger really, also can have the more uniform optical field distribution of brightness simultaneously.
In the LED lamp source 200 of Fig. 2 A and Fig. 3 A, the tangent line of the upper any point of the first optical surface S1 and the angle theta 1 between radiating block 210 are greater than in fact 90 degree and are less than 180 degree, preferably, angle theta 1 can drop in fact between 116 degree and 146 degree, as shown in Fig. 4 A and Fig. 4 B, wherein Fig. 4 A and Fig. 4 B are that angle is respectively the cuing open of LED lamp source of 116 degree and 146 while spending and shows schematic diagram.In the present embodiment, if angle theta 1 can drop between 116 degree and 146 degree, just LED lamp source 200 can present the optical field distribution figure as shown in Fig. 3 B, meaning can larger illumination zone and the more uniform optical field distribution of brightness of angle presentation.
In addition, above-mentioned secondary optics element 240 can adopt the secondary optics element 240 ', 240 as shown in Fig. 5 A～Fig. 5 C ", 240 " ' enforcement state, but be not limited to this.Specifically,, in Fig. 5 A, secondary optics element 240 ' can have a planar S 3, wherein the slope of planar S 3 relative radiating blocks 210 is zero, meaning is that planar S 3 is to be parallel to radiating block 210, and planar S 3 be positioned at circuit board 222 directly over and connect the second optical surface S2, as shown in Figure 5A; In Fig. 5 B, secondary optics element 240 " except having aforesaid planar S 3, and the slope absolute value of the relative radiating block 210 of tangent line of the upper any point of the second optical surface S2 diminishes gradually after change greatly gradually in the direction toward away from radiating block 210; In Fig. 5 C, secondary optics element 240 " ' adopt optical element 240 " embodiment, but what the two was different is, secondary optics element 240 " ' the tangent line of the upper any point of the first optical surface S1 be greater than secondary optics element 240 with the angle between radiating block 210 " the first optical surface S1 go up the tangent line of any point and the angle between radiating block 210, as shown in Fig. 5 B and Fig. 5 C.It should be noted that, above-mentioned is only to illustrate the enforceable state of secondary optics element 240, but is not limited to this.
In addition, secondary optics element 240,240 ', 240 ", 240 " ' also can be engaged and be formed by a plurality of sub-optical element 240a as shown in Figure 6, or can be integrated structure.Specifically, secondary optics element 240,240 ', 240 ", 240 " ' can be to be engaged by two, three, four or other integers optical element 240a, and form the enforcement state as shown in Fig. 2 B, Fig. 5 A～Fig. 5 C.In another embodiment, secondary optics element 240,240 ', 240 ", 240 " ' can be one-body molded, meaning is that secondary optics element can form by the mode of punching press, pressing mold, mold and so on.
Please continue with reference to figure 2A, Fig. 2 B and Fig. 3 A, above-mentioned secondary optics element 240 can comprise a plurality of clamping parts 242 again, and wherein these clamping parts 242 are suitable for and radiating block 210 buckles, so that secondary optics element 240 is fixed on radiating block 210.In addition, LED lamp source 200 can comprise a driving element support 280, wherein driving element support 280 is connected in a bottom B1 of radiating block 210, and in driving element support 280, is suitable for being equiped with one drive circuit (not shown), and wherein drive circuit is suitable for being electrically connected to lamp source plate 220.In the present embodiment, LED lamp source 200 can comprise a lamp screw base 290, and wherein a part for driving element support 280 is sticked in lamp screw base 290, and drive circuit 282 electrical connection lamp screw bases 290, as shown in Fig. 2 A, Fig. 2 B and Fig. 3 A.In the present embodiment, drive circuit is mainly to can be used to convert to and can supply the spendable DC signal of lamp source plate 220 putting on ac signal on lamp screw base 290.
In addition; LED lamp source 200 also can comprise a top cover 270; wherein top cover 270 is disposed in the locking perforate 252 of heat dissipation element 250; to cover lock member 260; so except having effect attractive in appearance, and there is protection lock member 260 and be easy to rustization to avoid lock member 260 to be exposed to outside.
Fig. 7 is the generalized section of the LED lamp source of another embodiment of the present invention.Please refer to Fig. 7, the LED lamp source 300 of the present embodiment adopts identical concept with aforesaid LED lamp source 200, the two difference be in, LED lamp source 300 can comprise a heat conducting element 310, wherein heat conducting element 310 is to be arranged in light reflection cylinder 234, as shown in Figure 7.In general, the heat conduction efficiency of solid is greater than the conduction efficiency of liquid and gas, therefore by heat conducting element 310 being arranged in light reflection cylinder 234, can further the heat energy producing from lamp source plate 220 be conducted to more rapidly to the outside of LED lamp source 300, with improving heat radiation efficiency.
In sum, LED lamp source of the present invention at least has the following advantages.First, LED lamp source can reach the all-round optical illumination of wide-angle by using secondary optics element, wherein on the first optical surface of secondary optics element, the slope absolute value of the relative radiating block of tangent line of any point is essentially fixingly, and on the second optical surface, the relative radiating block of tangent slope absolute value of any point diminishes gradually in the direction toward away from radiating block.In addition, because secondary optics element is mixed with a plurality of diffusion particles, therefore, light beam except can by refraction mode outgoing in LED lamp source, also mode that can be by diffusion/scattering and outgoing, outside LED lamp source, and can provide more homogenising and the larger illumination zone of angle.Moreover, owing to being positioned at the other light reflection cylinder of light-emitting component, also can assist segment beam to reflex to secondary optics element, therefore also can make LED lamp source that more homogenising and the larger illumination zone of angle are further provided.In addition, because radiating block has a plurality of the first radiating fins, and heat dissipation element has the second radiating fin, therefore can make LED lamp body there is larger area of dissipation, thereby can make the heat energy that lamp source plate produces be excluded from more efficiently LED lamp source outside by the mode of conduction, so, lamp source plate just can have higher service life.In other words, the present embodiment can promote the radiating effect of LED lamp source effectively by the use of the first radiating fin and the second radiating fin.
Only as described above, it is only preferred embodiment of the present invention, when not limiting scope of the invention process with this, the simple equivalence of generally doing according to the claims in the present invention and invention description content changes and modifies, and all still remains within the scope of the patent.In addition, arbitrary embodiment of the present invention or claim must not reached disclosed whole objects or advantage or feature.In addition, summary part and title are only for the use of auxiliary patent document search, are not used for limiting interest field of the present invention.
Claims (15)
1. a LED lamp source, is characterized in that, comprising:
Radiating block;
Lamp source plate, is positioned on described radiating block, and described lamp source plate comprises:
Circuit board, is positioned on described radiating block; And
A plurality of light-emitting components, are arranged on described circuit board;
Light reflection support, is arranged on described lamp source plate, and described light reflection support comprises:
Flat part, is disposed on described circuit board and has a plurality of openings, to expose described light-emitting component; And
Light reflection cylinder, is positioned on described flat part and entity connects described flat part;
Secondary optics element, cover described lamp source plate and be connected described radiating block with described light reflection support entity, described secondary optics element is mixed with a plurality of diffusion particles and has the first optical surface and the second optical surface, described the first optical surface connects described radiating block and described the second optical surface, on wherein said the first optical surface, the slope absolute value of the relatively described radiating block of tangent line of any point is essentially fixingly, and on described the second optical surface, the slope absolute value of the relatively described radiating block of tangent line of any point diminishes gradually in the direction toward away from described radiating block; And
Heat dissipation element, is disposed on described secondary optics element, and wherein said heat dissipation element has locking perforate and a plurality of the second radiating fin, and the second optical surface described in described the second radiating fin cover part.
2. LED lamp source according to claim 1, is characterized in that, described radiating block has a plurality of the first radiating fins, the first optical surface described in described the first radiating fin cover part.
3. LED lamp source according to claim 1, it is characterized in that, described in each, light-emitting component is suitable for providing light beam, the described light beam of part is suitable for being directly passed to described light reflection support and by described light reflection cylinder, is reflexed to described secondary optics element and from described LED lamp source outgoing, and the described light beam of part is suitable for being directly passed to described secondary optics element and from described LED lamp source outgoing.
4. LED lamp source according to claim 1, is characterized in that, the material of described light reflection support is heat-conducting.
5. LED lamp source according to claim 1, it is characterized in that, also comprise lock member, wear the described locking perforate of described heat dissipation element and be locked in the threaded hole of described light reflection cylinder, so that described heat dissipation element is locked on described secondary optics element.
6. LED lamp source according to claim 5, is characterized in that, also comprises top cover, is disposed in the described locking perforate of described heat dissipation element, to cover described lock member.
7. LED lamp source according to claim 1, is characterized in that, described light reflection cylinder is hollow cylinder.
8. LED lamp source according to claim 7, is characterized in that, also comprises heat conducting element, is arranged in described light reflection cylinder.
9. LED lamp source according to claim 1, is characterized in that, on described the first optical surface, the tangent line of any point and the angle between described radiating block are greater than in fact 90 degree and are less than 180 degree.
10. LED lamp source according to claim 9, is characterized in that, described angle drops in fact between 116 degree and 146 degree.
11. LED lamp sources according to claim 1, it is characterized in that, described secondary optics element also has plane, and the slope of the relatively described radiating block of described plane is zero, and described plane be positioned at described circuit board directly over and connect described the second optical surface.
12. LED lamp sources according to claim 1, is characterized in that, described secondary optics element also comprises a plurality of clamping parts, and described clamping part is suitable for and described radiating block buckle, so that described secondary optics element is fixed on described radiating block.
13. LED lamp sources according to claim 1, is characterized in that, described secondary optics element is formed by a plurality of sub-optical element engagings.
14. LED lamp sources according to claim 1, it is characterized in that, also comprise driving element support, be connected in the bottom of described radiating block, and in described driving element support, be suitable for being equiped with drive circuit, wherein said drive circuit is electrically connected to described lamp source plate.
15. 1 kinds of LED lamp sources, is characterized in that, comprising:
Radiating block;
Lamp source plate, is positioned on described radiating block, and described lamp source plate comprises:
Circuit board, is positioned on described radiating block; And
A plurality of light-emitting components, are arranged on described circuit board;
Light reflection support, is arranged on described lamp source plate, and described light reflection support comprises:
Flat part, is disposed on described circuit board and has a plurality of openings, to expose described light-emitting component; And
Light reflection cylinder, is positioned on described flat part and entity connects described flat part;
Secondary optics element, cover described lamp source plate and be connected described radiating block with described light reflection support entity, described secondary optics element is mixed with a plurality of diffusion particles and has the first optical surface and the second optical surface, described the first optical surface connects described radiating block and described the second optical surface, on wherein said the first optical surface, the slope absolute value of the relatively described radiating block of tangent line of any point is essentially fixing, on described the second optical surface, the slope absolute value of the relatively described radiating block of tangent line of any point diminishes again after becoming gradually greatly in the direction toward away from described radiating block gradually, and
Heat dissipation element, is disposed on described secondary optics element, and wherein said heat dissipation element has locking perforate and a plurality of the second radiating fin, and the second optical surface described in described the second radiating fin cover part.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110189357.5A CN102865464B (en) | 2011-07-07 | 2011-07-07 | Light-emitting diode (LED) lamp source |
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|---|---|---|---|
| CN201110189357.5A CN102865464B (en) | 2011-07-07 | 2011-07-07 | Light-emitting diode (LED) lamp source |
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| CN102865464B true CN102865464B (en) | 2014-08-13 |
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| CN201836676U (en) * | 2010-08-26 | 2011-05-18 | 深圳北森科技有限公司 | LED lamp with down light shaped structure |
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| KR101080355B1 (en) * | 2004-10-18 | 2011-11-04 | 삼성전자주식회사 | Light emitting diode, lens for the same |
| US8403531B2 (en) * | 2007-05-30 | 2013-03-26 | Cree, Inc. | Lighting device and method of lighting |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2173993Y (en) * | 1993-08-19 | 1994-08-10 | 刘立民 | Color-changing lamp with refraction lampshade |
| CN2369073Y (en) * | 1999-02-14 | 2000-03-15 | 恒嘉光电股份有限公司 | Luminous ornament with wide look-out angle |
| CN2618045Y (en) * | 2003-03-10 | 2004-05-26 | 许顺喜 | LED lamp bulb |
| CN201221735Y (en) * | 2008-06-13 | 2009-04-15 | 李金传 | Light guiding structure |
| CN201739869U (en) * | 2010-08-20 | 2011-02-09 | 沈李豪 | LED bulb |
| CN201836676U (en) * | 2010-08-26 | 2011-05-18 | 深圳北森科技有限公司 | LED lamp with down light shaped structure |
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