CN101082412A - Illuminating apparatus - Google Patents

Illuminating apparatus Download PDF

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Publication number
CN101082412A
CN101082412A CNA2007100238715A CN200710023871A CN101082412A CN 101082412 A CN101082412 A CN 101082412A CN A2007100238715 A CNA2007100238715 A CN A2007100238715A CN 200710023871 A CN200710023871 A CN 200710023871A CN 101082412 A CN101082412 A CN 101082412A
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China
Prior art keywords
unit
led lamp
length direction
lamp
surface portion
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Granted
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CNA2007100238715A
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Chinese (zh)
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CN100590352C (en
Inventor
陈桂芳
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Hershey Energy Technology (shanghai) Co Ltd
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Individual
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Publication of CN101082412A publication Critical patent/CN101082412A/en
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Publication of CN100590352C publication Critical patent/CN100590352C/en
Expired - Fee Related legal-status Critical Current
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  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

This invention provides a sort of illuminating set; it consists of heating cell, circuit board cell, illumination cell. The heating cell has base wall which can prolong direction prolongation, the under side of the base wall has an arc surface. The circuit board cell is located in the arc surface. The illumination cell has multi-lamp group which is above the arc surface and connects with circuit board cell by electricity, and the LED group divides into multi-lamp bank which alternates with others. Thereinto the number of the LED lamp which is in the furthest outboard lamp bank is much more than other lamp bank. Because the design of the radian of the arc surface and the number of the LED lamp which is in the furthest outboard lamp bank is much more than the middle lamp bank, it makes that the furthest outboard lamp bank has much light flux and cast to the sideward area beside the road surface which is in further place, and it makes that the middle lamp bank has little light flux and cast center area beside the road surface which is near it. Accordingly it can't bring big fall and it makes the light flux distribute averagely into the sideward area and the center area, namely it increases useable efficiency of the energy of the light.

Description

Lighting device
Technical field
The present invention relates to a kind of lighting device, particularly relate to a kind of more consistent street lamp of illumination that makes on the zones of different of road surface.
Background technology
As shown in Figure 1, existing a kind of LED street lamp 1 generally have a plurality of evenly and the compartment of terrain be arranged in LED lamp group 102 on the mounting plane 101, the light that this LED lamp group 102 is produced down throws the road surface 2 of can throwing light on.
Though this street lamp 1 can produce the effect of illumination by this LED lamp group 102,, when reality was used, this kind street lamp 1 but had following disappearance:
The street lamp setting of China at present requires to need the distance of 30m at interval between two street lamps in accordance with regulations, and this street lamp 1 be projeced into the zone 201, next door on this road surface 2 can not be with the illumination ratio on the middle section 202 less than 0.3.
Yet because this LED lamp group 102 is to be even compartment of terrain to be arranged on this mounting plane 101, and LED itself has the characteristic of rectipetaly projection light, and the luminous flux F that causes this LED lamp group 102 is incident upon on the middle section 202; Moreover, by computing formula (the E=F/4 π R of illumination E 2) more as can be known illumination E be and square being inversely proportional to of distance R.Therefore, zone, this next door 201 is because the luminous flux F deficiency of being accepted, and is distal to this middle section 202 again apart from the distance of this street lamp 1, causes illumination on this next door regional 201 far below the illumination on this middle section 202.
So; this street lamp 1 not only illumination ratio regular meeting of next door and central authorities is lower than 0.3 and do not conform to the rules; and can produce tangible light and shade difference between this middle section 202 and the zone, this next door 201; cause the driver when fast running; can because light light and shade Fast transforms caused dazzle optical phenomenon, and produce visual sense of discomfort.
In addition, the luminous flux of this street lamp 1 also can't throw on the zones of different on this road surface 2 effectively, and most of luminous flux all is to concentrate on this middle section 202, has caused bright excessively middle section 202 and dark excessively zone, next door 201, therefore, the luminous energy service efficiency of this street lamp 1 is not good.
Summary of the invention
The present invention seeks to provide in order to overcome the deficiencies in the prior art a kind of makes illumination on the zones of different of road surface more consistent and can improve the lighting device of the service efficiency of luminous energy.
For achieving the above object, technical scheme of the present invention is: a kind of lighting device, it comprises: a heat-sink unit, a circuit board unit, a lighting unit, a lampshade unit, two side cover unit, described heat-sink unit has basal wall, an a plurality of compartment of terrain along the length direction extension and is arranged at the radiating fin on the described basal wall, described basal wall has an end face, a bottom surface with respect to described end face setting, described each radiating fin is arranged on the described end face at intervals, and described bottom surface has a cambered surface portion of protruding and having a radian down; The radian of the corresponding described cambered surface of described circuit board unit portion is arranged in the described cambered surface portion; Described lighting unit has a plurality of LED lamp groups that are installed in the described cambered surface portion and are electrically connected with described circuit board unit, described LED lamp group is arranged in the described cambered surface portion along length direction with being ordered series of numbers, and described LED lamp component becomes a plurality of lamp row that are provided with separately, and wherein the number of the LED lamp group of two outermost side lamps row is greater than the number of all the other lamp row; Described lampshade unit is arranged on the described basal wall and with described each radiating fin and is provided with on the contrary, and described lampshade unit enclosure is covered described each LED lamp group; Described side cover unit is arranged at described heat-sink unit and described lampshade unit respectively along on the both ends of length direction, and described two side cover unit match with described heat-sink unit, described lampshade unit to be provided with and form an accommodation space.
Have several on the bottom surface of described basal wall and be arranged at caulking groove in the described cambered surface portion along length direction, described a plurality of caulking groove is provided with at intervals, described circuit board unit has several and is arranged at circuit lath in described each caulking groove along length direction respectively, described each LED lamp group correspondingly and be removably disposed in the described caulking groove and connects with described circuit lath respectively.
The bottom surface of described basal wall has four and is arranged at caulking groove in the described cambered surface portion along length direction, described circuit board unit has four and is arranged at circuit lath in the described caulking groove along length direction respectively, described LED lamp component becomes four lamp row separately, two outermost side lamps row are made of five LED lamp groups respectively, two intermediate lamp row are made of three LED lamp groups respectively, and the LED lamp group of two intermediate lamp row is provided with on the contrary along length direction with distributing.
Offer a plurality of perforations that are provided with separately on described each circuit lath respectively, described each LED lamp group has a lamp grain respectively, described each lamp grain has a back side metal radiating seat respectively, and perforation and described cambered surface portion that the back side metal radiating seat of described each lamp grain passes described each circuit lath respectively are provided with offseting.
Described heat-sink unit is coated with one deck heat-conducting insulated film.
Described each radiating fin extends along length direction respectively, and described radiating fin is arranged on the end face of described basal wall at intervals, and described each radiating fin extends upward from described end face respectively.
Described each radiating fin extends along length direction respectively, and described radiating fin is arranged on the end face of described basal wall at intervals, and described each radiating fin stretches out towards both sides from described end face respectively.
The present invention compared with prior art, has following advantage: because the number of the LED lamp group of design of the radian of described cambered surface portion and two outermost side lamps row is the numbers greater than two intermediate lamp row, two outermost side lamps row are projected to more relatively luminous flux on the distance zone, next door, road surface far away, and two intermediate lamp row are projected to less relatively luminous flux on the road surface middle section of close together, thereby can not produce excessive drop, luminous flux can be dispensed to more fifty-fifty on zone, next door and the middle section, can effectively increase the service efficiency of luminous energy.
Description of drawings
Accompanying drawing 1 is the floor map on a kind of street lighting road surface in the prior art;
Accompanying drawing 2 is that first preferred embodiment of lighting device of the present invention is installed in the schematic perspective view on the lamp stand;
Accompanying drawing 3 is exploded perspective schematic diagrames of the present invention's first preferred embodiment;
Accompanying drawing 4 is elevational schematic view of the present invention's first preferred embodiment;
Accompanying drawing 5 is cross-sectional schematic of the present invention's first preferred embodiment;
Accompanying drawing 6 is the throw light on schematic diagrames on a road surface of the present invention's first preferred embodiment;
Accompanying drawing 7 is schematic perspective views of heat-sink unit of second preferred embodiment of lighting device of the present invention;
Wherein:
1, street lamp; 101, mounting plane; 102, LED lamp group;
2, road surface; 201, zone, next door; 202, middle section; 100, lamp stand; 200, road surface; 210, zone, next door; 220, middle section;
10, heat-sink unit;
11, basal wall; 111, end face; 112, bottom surface; 113, through hole; 114, cambered surface portion; 115, caulking groove;
12, radiating fin; 20, circuit board unit; 21, circuit lath; 211, perforation;
30, lighting unit; 31, LED lamp group; 311, inlay card seat; 312, lamp grain; 313, projection; 314, back side metal radiating seat;
32, lamp row; 33, lamp row; 34, lamp row; 35, lamp row;
40, lampshade unit; 50, side cover unit; 51, accommodation space; 52, perforate; 60, waterproof washer;
70, power line; 80, water joint; X, length direction.
The specific embodiment
Below in conjunction with accompanying drawing embodiments of the present invention are described in detail:
Before proposing detailed description, be noted that in the following description similarly assembly is to represent with identical numbering.
As shown in Figure 2, first preferred embodiment of lighting device of the present invention can be installed on the lamp stand 100, shown in Fig. 3,4,5, this lighting device comprises: a heat-sink unit 10, a circuit board unit 20, a lighting unit 30, a lampshade unit 40, two side cover unit 50, two waterproof washers 60, a power line 70, and a water joint 80.
Described heat-sink unit 10 is an aluminium extruded type, and this heat-sink unit 10 has basal wall 11, an a plurality of compartment of terrain of extending along length direction X and is arranged at a radiating fin 12 on this basal wall 11 and a heat-conducting insulated film of coating on the outer peripheral face.In the present embodiment, this heat-sink unit 10 is through anodized, and forms this heat-conducting insulated film, and this heat-conducting insulated film is a kind of anode oxide film, have heat conduction, antirust and the insulation effect.This basal wall 11 has an end face 111, a bottom surface 112 in contrast to this end face 111, and one extends through hole 113 between end face 111, the bottom surface 112 along length direction X.Described bottom surface 112 has a cambered surface portion 114 of protruding and having a radian down, and four are arranged with caulking groove 115 in this cambered surface portion 114 along length direction X.Described caulking groove 115 apart from one another by.Described each radiating fin 12 extends along length direction X respectively, and each radiating fin 12 is that the compartment of terrain is arranged on the end face 111 of this basal wall 11, and extends up from described end face 111 respectively.Described heat-sink unit 10 can produce radiating effect to described lighting unit 30.
Described circuit board unit 20 is that the radian of corresponding described cambered surface portion 114 is arranged in this cambered surface portion 114.In the present embodiment, this circuit board unit 20 has four and is arranged at circuit lath 21 in described each caulking groove 115 along described length direction X respectively.Described each circuit lath 21 has a plurality of perforations 211 that are provided with separately respectively.
Described lighting unit 30 has a plurality of LED lamp groups 31 that are installed in the described cambered surface portion 114 and are electrically connected with described circuit board unit 20, described each LED lamp group 31 has an inlay card seat 311 respectively, an and lamp grain 312, the bottom surface of described inlay card seat 311 has projection 313 respectively, and each lamp grain 312 has a back side metal radiating seat 314 respectively.The inlay card seat 311 of described each LED lamp group 31 is removably to be halved together with described each caulking groove 115 respectively, and respectively with described circuit lath 21 butts, the back side metal radiating seat 314 of described each lamp grain 312 extends inlay card seat 311 respectively, and perforation 211 that passes circuit lath 21 respectively and described cambered surface portion 114 butts, with the reduction thermal resistance, and carry out more effective heat exchange.In the present embodiment, described each LED lamp group 31 when mounted, be to make the length of each inlay card seat 311 be parallel to each caulking groove 115 earlier, and each inlay card seat 311 is pressed in the caulking groove 115 of correspondence, then, each LED lamp group 31 is rotated 90 degree, the length of described each inlay card seat 311 is turned to perpendicular to each caulking groove 115, and then be embedded in the caulking groove 115, at this moment, the projection 313 of described each inlay card seat 311 is resisted against on the described basal wall 11, thereby each inlay card seat 311 can stably be positioned in each caulking groove 115.
Described a plurality of LED lamp group 31 is to be arranged in the described cambered surface portion 114 along described length direction X with being ordered series of numbers, in the present embodiment, be divided into into the lamp row 32,33,34,35 at four intervals, wherein the number of the LED lamp group 31 of two outermost side lamp row 32,33 is greater than the number of all the other lamp row 34,35.In the present embodiment, two outermost side lamp row 32,33 are made of five LED lamp groups 31, two intermediate lamp row 34,35 are made of three LED lamp groups 31 respectively, and the LED lamp group 31 of two intermediate lamp row 34,35 is opposite mutually along the distribution of described length direction X.
Described lampshade unit 40 is arranged on the bottom, both sides of described basal wall 11, and is provided with on the contrary with described each radiating fin 12, and this lampshade unit 40 can cover and cover described each LED lamp group 31.
Described side cover unit 50 is arranged at described heat-sink unit 10 and described lampshade unit 40 along on the opposite end of described length direction X, and each side cover unit 50 can cooperate the accommodation space 51 that defines ccontaining described each the LED lamp group 31 of a confession with described heat-sink unit 10, described lampshade unit 40.
Described waterproof washer 60 is located between described side cover unit 50 and heat-sink unit 10, the lampshade unit 40, and can produce waterproof effect.
One end of described power line 70 is electrically connected with each circuit lath 21 respectively, and the other end of this power line 70 passes the through hole 113 and a wherein perforate 52 of a side cover unit 50 of described basal wall 11 along described length direction X, and extends in the lamp stand 100.This power line 70 can be delivered to described each LED lamp group 31 with electric current through each circuit lath 21.
Described water joint 80 is installed on the basal wall 11 of described heat-sink unit 10, but the connection electric wire of power circuit board bar 21 penetrates with described power line 70 and is connected.
By this, as Fig. 4,5, shown in 6, the lamp row 32 that LED lamp group 31 of the present invention is constituted, 33,34,35, be to cooperate the radian of the cambered surface portion 114 of described basal wall 11 to be installed in this cambered surface portion 114, wherein, two outermost side lamp row 32, the 33rd, be positioned at the outermost of this cambered surface portion 114, therefore, cooperate the radian design of this cambered surface portion 114, two outermost side lamp row 32,33 can be projected to most luminous flux on the 200 distances zone, next door 210 far away, road surface, and two intermediate lamp row 34,35 is the central authorities that are positioned at this cambered surface portion 114, therefore, cooperate the radian design of this cambered surface portion 114, two intermediate lamp row 34,35 can be projected to most luminous flux on the middle section 220 of these road surface 200 close together.
Moreover, the present invention is the two outermost side lamp row 32,33 that constitute with more LED lamp group 31, make two outermost side lamp row 32,33 produce more relatively luminous flux, and the two intermediate lamp row 34,35 that constitute with less LED lamp group 31, and make two intermediate lamp row 34,35 produce less relatively luminous flux, therefore, by the computing formula (E=/4 π R of illumination E 2) as can be known, because two outermost side lamp row 32,33 can come compensate for slower projection distance R far away by increasing luminous flux F, therefore, two outermost side lamp row 32,33 are projected to illumination on the zone, this next door 210 and two intermediate lamp row 34,35 and are projected between the illumination on this middle section 220, promptly can not produce excessive drop, both ratios can meet standing order (according to the actual test of inventor, both ratios can reach 0.354), so, can make the more consistent illumination of generation on this zone 210, next door and this middle section 220.
By above explanation, can be again the advantage of present embodiment be summarized as follows:
One, the present invention is by the radian design of described cambered surface portion 114, and the number of the LED lamp group 31 of two outermost side lamp row 32,33 is the numbers greater than two intermediate lamp row 34,35, two outermost side lamp row 32,33 are projected to more relatively luminous flux on the distance zone, next door, road surface 210 far away, and two intermediate lamp row 34,35 are projected to less relatively luminous flux on the road surface middle section 220 of close together, by computing formula (the E=F/4 π R of illumination E 2) as can be known, because two outermost side lamp row 32,33 can come compensate for slower projection distance R far away by increasing luminous flux F, therefore, two outermost side lamp row 32,33 are projected to illumination and the two intermediate lamp row 34 on this zone, next door 210, between 35 illumination that are projected on the middle section 220, promptly can not produce excessive drop, so, the present invention can make on zone 210, next door and the middle section 220 and produce more consistent illumination, the excessive problem of light light and shade difference can not take place between two zones and make, and then can make the driver when fast running, the one tunnel keeps visual comfort.
Two, the present invention is by the radian design of described cambered surface portion 114, two outermost side lamp row 32,33 and two intermediate lamp row 34,35 can be respectively with luminous fluxes, be projected on the zone 210, next door and middle section 220 on road surface 200, therefore, the present invention can effectively improve the most of luminous flux of prior art and concentrate on problem on the middle section of road surface, and luminous flux can be dispensed to more fifty-fifty on zone 210, next door and the middle section 220, so, compared to prior art, the present invention can effectively increase the service efficiency of luminous energy.
What deserves to be mentioned is that the present invention utilizes the described waterproof washer 60 that waits can produce good waterproof effect, and described power line 70 is after through hole 113 pass-outs of heat-sink unit 10, can directly extend in the lamp stand 100, and do not expose fully, therefore, the present invention meets the operating specification of Europe rule.In addition, certainly the present invention also can with solar powered be that device is used, utilize solar powered lighting device and become.
Shown in Figure 7 is second preferred embodiment of the present invention, and this second preferred embodiment is similar to described first preferred embodiment, and its difference part is:
Described each radiating fin 12 is to extend along described length direction X respectively, and each radiating fin 12 is that the compartment of terrain is arranged on the end face 111 of described basal wall 11, and extends outward towards both sides from end face 111 respectively.
So, this second preferred embodiment also can reach purpose and the effect identical with above-mentioned first preferred embodiment.
Conclude above-mentionedly, lighting device of the present invention not only can make next door zone, road surface more consistent with illumination on the middle section, and can effectively reduce the light and shade otherness of zones of different on the road surface, and can improve the service efficiency of luminous energy, so can reach the purpose of invention really.
Above-mentioned only is preferred embodiment of the present invention, can not limit protection scope of the present invention with this, and all simple equivalent of being done according to the present patent application claim and invention description content change and modify, and all belongs in the scope that patent of the present invention contains.

Claims (7)

1, a kind of lighting device, it is characterized in that: it comprises:
One heat-sink unit (10), described heat-sink unit (10) has a radiating fin (12) that is arranged at along basal wall (11), a plurality of compartment of terrain that length direction (X) extends on the described basal wall (11), described basal wall (11) has an end face (111), a bottom surface (112) with respect to described end face (111) setting, described each radiating fin (12) is arranged on the described end face (111) at intervals, and described bottom surface (112) have a cambered surface portion (114) of protruding and having a radian down;
One circuit board unit (20), the radian of the corresponding described cambered surface portion of described circuit board unit (20) (114) are arranged in the described cambered surface portion (114);
One lighting unit (30), described lighting unit (30) has a plurality of LED lamp groups (31) that are installed in that described cambered surface portion (114) goes up and are electrically connected with described circuit board unit (20), described LED lamp group (31) is arranged in the described cambered surface portion (114) along length direction (X) with being ordered series of numbers, and described LED lamp group (31) is divided into a plurality of lamp row (32,33,34,35) that are provided with separately, and wherein the number of the LED lamp group (31) of two outermost side lamps row (32,33) is greater than the number of all the other lamp row (34,35);
One lampshade unit (40), described lampshade unit (40) are arranged at described basal wall (11) and go up and be provided with on the contrary with described each radiating fin (12), and described lampshade unit (40) cover covers described each LED lamp group (31); And
Two side cover unit (50), described side cover unit (50) is arranged at described heat-sink unit (10) and described lampshade unit (40) respectively along on the both ends of length direction (X), and described two side cover unit (50) match with described heat-sink unit (10), described lampshade unit (40) formation one accommodation space (51) is set.
2, lighting device according to claim 1, it is characterized in that: have several on the bottom surface (112) of described basal wall (11) and be arranged at caulking groove (115) in the described cambered surface portion (114) along length direction (X), described a plurality of caulking groove (115) is provided with at intervals, described circuit board unit (20) has several and is arranged at the interior circuit lath (21) of described each caulking groove (115) along length direction (X) respectively, described each LED lamp group (31) correspondingly and be removably disposed in the described caulking groove (115) and connects with described circuit lath (21) respectively.
3, lighting device according to claim 2, it is characterized in that: the bottom surface (112) of described basal wall (11) has four and is arranged at caulking groove (115) in the described cambered surface portion (114) along length direction (X), described circuit board unit (20) has four and is arranged at the interior circuit lath (21) of described caulking groove (115) along length direction respectively, described LED lamp group (31) is divided into four lamp row (32 separately, 33,34,35), two outermost side lamps row (32,33) constituted by five LED lamp groups (31) respectively, two intermediate lamp row (34,35) constituted by three LED lamp groups (31) respectively, and the LED lamp group (34 of two intermediate lamp row, 35) be provided with on the contrary along length direction with distributing.
4, lighting device according to claim 2, it is characterized in that: offer a plurality of perforations (211) that are provided with separately on described each circuit lath (21) respectively, described each LED lamp group (31) has a lamp grain (312) respectively, described each lamp grain (312) has a back side metal radiating seat (314) respectively, and the perforation (211) that the back side metal radiating seat (314) of described each lamp grain (312) passes described each circuit lath (21) respectively is provided with described cambered surface portion (114) with offseting.
5, lighting device according to claim 1 is characterized in that: described heat-sink unit (10) is coated with one deck heat-conducting insulated film.
6, lighting device according to claim 1, it is characterized in that: described each radiating fin (12) extends along length direction (X) respectively, and described radiating fin (12) is arranged on the end face (111) of described basal wall (11) at intervals, and described each radiating fin (12) extends upward from described end face (111) respectively.
7, lighting device according to claim 1, it is characterized in that: described each radiating fin (12) extends along length direction respectively, and described radiating fin (12) is arranged on the end face (111) of described basal wall (11) at intervals, and described each radiating fin (12) stretches out towards both sides from described end face (111) respectively.
CN200710023871A 2007-06-22 2007-06-22 Illuminating apparatus Expired - Fee Related CN100590352C (en)

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Application Number Priority Date Filing Date Title
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CN101082412A true CN101082412A (en) 2007-12-05
CN100590352C CN100590352C (en) 2010-02-17

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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101551087B (en) * 2008-04-03 2010-12-29 富准精密工业(深圳)有限公司 Light emitting diode lamp
CN102155725A (en) * 2010-02-11 2011-08-17 亿光电子工业股份有限公司 Cooling device and illumination lamp comprising same
CN102537908A (en) * 2011-11-18 2012-07-04 董付生 LED (Light-Emitting Diode) lamp with high-efficiency heat-radiating function
CN101701690B (en) * 2007-05-31 2012-07-04 陈桂芳 Lighting device
CN101769471B (en) * 2008-12-26 2012-11-21 富准精密工业(深圳)有限公司 Light-emitting diode table lamp
CN101881383B (en) * 2009-05-08 2013-01-23 安提亚科技股份有限公司 Fresnel type light emitting diode light bar type light fitting
CN101463982B (en) * 2007-12-21 2013-02-20 富准精密工业(深圳)有限公司 LED lamp
CN101598279B (en) * 2008-06-02 2013-06-05 周泽鹏 LED street lamp device and illuminance uniforming method
CN101614379B (en) * 2008-06-25 2013-06-05 富准精密工业(深圳)有限公司 Light-emitting diode lamp
TWI404884B (en) * 2008-10-09 2013-08-11 Foxconn Tech Co Ltd Led lamp

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101701690B (en) * 2007-05-31 2012-07-04 陈桂芳 Lighting device
CN101463982B (en) * 2007-12-21 2013-02-20 富准精密工业(深圳)有限公司 LED lamp
CN101551087B (en) * 2008-04-03 2010-12-29 富准精密工业(深圳)有限公司 Light emitting diode lamp
CN101598279B (en) * 2008-06-02 2013-06-05 周泽鹏 LED street lamp device and illuminance uniforming method
CN101614379B (en) * 2008-06-25 2013-06-05 富准精密工业(深圳)有限公司 Light-emitting diode lamp
TWI404884B (en) * 2008-10-09 2013-08-11 Foxconn Tech Co Ltd Led lamp
CN101769471B (en) * 2008-12-26 2012-11-21 富准精密工业(深圳)有限公司 Light-emitting diode table lamp
CN101881383B (en) * 2009-05-08 2013-01-23 安提亚科技股份有限公司 Fresnel type light emitting diode light bar type light fitting
CN102155725A (en) * 2010-02-11 2011-08-17 亿光电子工业股份有限公司 Cooling device and illumination lamp comprising same
CN102537908A (en) * 2011-11-18 2012-07-04 董付生 LED (Light-Emitting Diode) lamp with high-efficiency heat-radiating function
CN102537908B (en) * 2011-11-18 2014-09-03 董付生 LED (Light-Emitting Diode) lamp with high-efficiency heat-radiating function

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