WO2022179627A1 - 一种led灯具 - Google Patents

一种led灯具 Download PDF

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Publication number
WO2022179627A1
WO2022179627A1 PCT/CN2022/078055 CN2022078055W WO2022179627A1 WO 2022179627 A1 WO2022179627 A1 WO 2022179627A1 CN 2022078055 W CN2022078055 W CN 2022078055W WO 2022179627 A1 WO2022179627 A1 WO 2022179627A1
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WO
WIPO (PCT)
Prior art keywords
light
emitting
unit
area
lens
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2022/078055
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English (en)
French (fr)
Inventor
王名斌
江涛
张志超
张东梅
许吉锋
岑松原
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jiaxing Super Lighting Electric Appliance Co Ltd
Original Assignee
Jiaxing Super Lighting Electric Appliance Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by Jiaxing Super Lighting Electric Appliance Co Ltd filed Critical Jiaxing Super Lighting Electric Appliance Co Ltd
Publication of WO2022179627A1 publication Critical patent/WO2022179627A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F21K9/20—Light sources comprising attachment means
    • F21K9/23—Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings
    • F21K9/232—Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings specially adapted for generating an essentially omnidirectional light distribution, e.g. with a glass bulb
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V7/00—Reflectors for light sources
    • F21V7/04—Optical design

Definitions

  • the invention belongs to the technical field of LED lighting devices, and particularly relates to an LED lamp.
  • LED lighting is widely used because of its advantages of energy saving and long life.
  • LED lamps in the prior art commonly include flat panel lamps and grille lamps.
  • the flat panel light in the prior art usually includes a light bar, a bottom frame, a power supply, a light guide plate and a diffuser plate.
  • the light bar is arranged on the side of the bottom frame to provide lateral light output. out of the diffuser.
  • the flat panel light in the prior art has the following disadvantages: the power supply of the flat panel light is arranged on the back of the bottom frame, which will occupy additional height space, which is not conducive to the height control of the flat panel light; after the light emitted by the light bar passes through the light guide plate and the diffuser plate, The light loss is large, resulting in low light output efficiency of the panel light; the cost of the light guide plate is high, which is not conducive to the cost control of the flat light, and the glare control of the flat light is relatively general; after the flat light is damaged, it can only be replaced as a whole, and the use cost is high.
  • a grid light in the prior art includes a bottom frame, a light source (light bars, fluorescent tubes or LED light tubes can be used as the light source) and a grid, the light source is fixed on the bottom frame, and a grid is provided on the light emitting side of the light source.
  • the grille lights in the prior art have the following disadvantages: the power supply is arranged on the back of the bottom frame, which will occupy additional height space, which is not conducive to the height control of the panel lights; the way of setting the grille is not conducive to the height control of the grille lights, so that The cost of packaging and transportation is increased; the cost of the grille is high, which is not conducive to the cost control of the whole lamp.
  • Embodiments of the present invention provide a new LED lamp and features in various aspects to solve the above problems.
  • An embodiment of the present invention provides an LED lamp, characterized in that it includes:
  • a support unit comprising at least a plurality of first reflecting surfaces
  • an optoelectronic module which is fixed to the support unit, the optoelectronic module includes a base, a first light-emitting unit, a first beam control member and a light-shielding portion, wherein the first light-emitting unit is disposed on the base , the first light beam control member is arranged on the main light-emitting surface of the first light-emitting unit, the light-shielding portion is arranged at one end of the base and is located on one side of the first light-emitting unit; and
  • a wiring unit which is fixed on the support unit, the wiring unit is electrically connected to the first light-emitting unit, wherein the light emitted by the first light-emitting unit is adjusted by the first light beam control member to make part of the first light-emitting unit
  • the light emitted by the unit is directly projected onto the first reflection surface, and part of the light emitted by the first light-emitting unit is reflected by the light shielding portion and then projected onto the first reflection surface.
  • the first light beam controlling member further includes at least one hole, and the hole is suitable for accommodating the first light-emitting unit.
  • the first beam control member further includes a first exit surface and a second exit surface, the first exit surface is an external convex curved surface, the second exit surface is an internal concave curved surface, and the first exit surface
  • the luminous flux emitted by the light is greater than the luminous flux emitted by the second exit surface.
  • the first emitting surface is a condensing curved surface
  • the second emitting surface is a diffusing curved surface
  • the luminous flux emitted by the first emitting surface is greater than the luminous flux emitted by the second emitting surface
  • the first outgoing surface corresponds to a first area of the first reflecting surface
  • the second outgoing surface corresponds to a second area of the first reflecting surface
  • the first area is opposite to the The distance of the first beam control member is greater than the distance of the second area relative to the first beam control member, wherein the ratio of the average illuminance of the surface of the first area to the average illuminance of the surface of the second area is defined as 1:0.2 ⁇ 1.
  • the support unit further includes a plurality of second reflecting surfaces
  • the optoelectronic module further includes a second light-emitting unit and a second beam control member
  • the second light-emitting unit is disposed on the base
  • the two light beam control members are arranged on the main light emitting surface of the second light emitting unit
  • the light shielding portion is arranged on one end of the base and is located on one side of the second light emitting unit.
  • the second light beam controlling member further includes at least one hole, and the hole is suitable for accommodating the second light-emitting unit.
  • the second beam controlling member further includes a third exit surface and a fourth exit surface, the third exit surface is an external convex curved surface, the fourth exit surface is an internal concave curved surface, and the third exit surface
  • the luminous flux emitted by the light is greater than the luminous flux emitted by the fourth exit surface.
  • the third emitting surface is a condensing curved surface
  • the fourth emitting surface is a diffusing curved surface
  • the luminous flux emitted by the third emitting surface is greater than the luminous flux emitted by the fourth emitting surface
  • the third emission surface corresponds to a third area of the second reflection surface
  • the fourth emission surface corresponds to a fourth area of the second reflection surface
  • the third area is opposite to the second reflection surface.
  • the distance of the second beam control member is greater than the distance of the fourth area relative to the second beam control member, wherein the ratio of the average illuminance of the surface of the third area to the average illuminance of the surface of the fourth area is defined as 1:0.2 ⁇ 1.
  • the present invention has outstanding and beneficial technical effects as follows: the structure is simple and the design is reasonable; the light emitting unit, the power module and the base are integrated into one, so that the whole installation can be carried out, and the modular installation of the photoelectric module can be realized.
  • FIG. 1 is a schematic front view of an LED lamp according to an embodiment of the present invention.
  • FIG. 2 is a schematic diagram of a rear view of an LED lamp according to an embodiment of the present invention.
  • FIG. 3 is a first three-dimensional schematic diagram of an LED lamp according to an embodiment of the present invention.
  • FIG. 4 is a second perspective schematic diagram of an LED lamp according to an embodiment of the present invention.
  • Fig. 5 is the enlarged view at C place in Fig. 4;
  • FIG. 6 is a schematic cross-sectional view of an LED lamp according to an embodiment of the present invention.
  • Fig. 7 is the enlarged view of A place in Fig. 6;
  • Fig. 8 is an enlarged view at B in Fig. 7;
  • Figure 9 is a perspective view of a support unit
  • Figure 10 is a perspective view of a photoelectric module
  • FIG. 11 is a schematic perspective view of the light beam control member in cooperation with the first light-emitting component in an embodiment
  • FIG. 12 is a schematic cross-sectional view of the light beam control member in cooperation with the first light-emitting component in an embodiment
  • Figure 13 is an enlarged view at D in Figure 12;
  • FIG. 14 is a partial cross-sectional view of the light beam control member in cooperation with the first light-emitting component in one embodiment
  • FIG. 15 is a partial cross-sectional view of the light beam control member in cooperation with the first light-emitting component in one embodiment, showing that the surface of the first light-emitting body is concave;
  • FIG. 16 is a schematic cross-sectional view of the light beam control member in cooperation with the first light-emitting assembly in one embodiment, showing that the light beam control member is a single body;
  • FIG. 17 is a schematic diagram of the installation of the light beam control member and the first light-emitting component in an embodiment
  • FIG. 18 is a schematic three-dimensional structure diagram of an LED lamp in an embodiment
  • Figure 19 is a schematic diagram of the cooperation between the first lens and the first illuminant
  • Fig. 20 is the three-dimensional structure schematic diagram of the first lens
  • Fig. 21 is the first three-dimensional structure schematic diagram of the second lens
  • FIG. 22 is a second schematic diagram of the three-dimensional structure of the second lens
  • 23 is a schematic diagram 1 of the cooperation between the second lens and the first light-emitting body, limiting the cross-section in the first direction;
  • 24 is a schematic diagram 1 of the cooperation between the second lens and the first light-emitting body, limiting the cross-section in the second direction;
  • Figure 25 is a light pattern diagram of the first illuminant passing through the first lens
  • Figure 26 is a light pattern diagram of the first illuminant passing through the second lens
  • 27 and 28 show a perspective view and a top view, respectively, of a polygonal lens device according to an embodiment of the present invention
  • FIG. 29 shows a schematic diagram of the optical path of a strip lens in a polygonal lens device according to an embodiment of the present invention, viewed from a long strip direction;
  • Figure 30 shows a six-sided view of the bar lens shown in Figure 29;
  • FIG. 31 shows a schematic perspective view of a single particle lens in a polygonal lens device according to an embodiment of the present invention
  • Figure 32 shows a six-sided view of the particle lens shown in Figure 31;
  • Figure 33 shows a schematic perspective view of a light fixture according to an embodiment of the present invention.
  • Figure 34 shows a schematic diagram of the lamp in Figure 33 after disassembly
  • Fig. 35 is a perspective view of the lamp in Fig. 33 after being completely removed and placed upside down;
  • Figure 36 shows an example of a luminaire according to the present invention
  • FIG. 38 is a schematic diagram 1 of the three-dimensional structure of the optoelectronic module in the second embodiment
  • FIG. 39 is a second schematic three-dimensional structure diagram of the optoelectronic module in the second embodiment.
  • Fig. 40 is a three-dimensional schematic diagram of the optoelectronic module without optical components
  • Figure 41 is a schematic view of the three-dimensional structure of the optoelectronic module without optical components and light-emitting units;
  • FIG. 42 is the first three-dimensional schematic diagram of the base.
  • an LED lighting fixture is provided in an embodiment of the present invention, for example, it may be a linear lighting fixture installed in a suspension, or a lighting fixture fixedly installed on a ceiling or a suspended ceiling.
  • the LED lamp includes: a support unit 1 and a photoelectric module 2 .
  • the optoelectronic module 2 is connected to the support unit 1 in a replaceable (removable) manner, so that the optoelectronic module 2 can be replaced for the LED lamp. If the photoelectric module 2 is damaged, only part of the photoelectric module 2 can be replaced, which can reduce the replacement cost compared to replacing the entire lamp.
  • the photovoltaic module 2 can also be connected to the support unit 1 in a non-detachable manner, that is, after the photovoltaic module 2 is fixed to the support unit 1, it cannot be easily disassembled.
  • the photovoltaic module 2 can be configured to be quickly installed with the support unit 1 , and after the installation, the photovoltaic module 2 and the support unit 1 cannot be easily disassembled. In this way, the photovoltaic module 2 and the support unit 1 can be packaged and transported separately during packaging and transportation, saving packaging and transportation costs, and the photovoltaic module 2 and the support unit 1 can be quickly installed during sale or use.
  • the front surface of the support unit 1 is provided with a reflective surface 11 .
  • the reflection surfaces 11 are provided in plural. At least a part of the light of the optoelectronic module 2 can be emitted to the plurality of reflective surfaces 11 and emitted from the LED lamp through the plurality of reflective surfaces 11 .
  • a photoelectric module 2 is provided, which can be applied to the LED lamp in the embodiment of the present invention.
  • the optoelectronic module 2 includes a light-emitting unit 21, a power supply module 24, a wiring unit 22 and a base 23.
  • the light-emitting unit 21 is disposed on the base 23 and is connected with the light-emitting unit 21 ( The first light-emitting unit and the second light-emitting unit) are electrically connected, the wiring unit 22 is arranged on the back of the support unit 1 for connecting an external power source or a commercial power supply, and the power module 24 (not shown) is arranged on the base 23 inside.
  • the light emitting unit 21 , the power module 24 and the base 23 are integrated into one body, so that the whole assembly can be disassembled and assembled, and the modular disassembly and assembly of the optoelectronic module 2 can be realized.
  • the wiring unit 22 can also be integrated with the above components.
  • the support unit 1 has a front surface and a back surface, wherein the side where the light emitting unit 21 is arranged is defined as the front surface, and the opposite side is defined as the back surface, and the wiring unit 22 is arranged on the back surface of the support unit 2 .
  • the photoelectric module 2 does not exceed the range limited by the support unit 1 in the thickness direction of the LED lamp, that is, the photoelectric module does not occupy (greater) the additional thickness dimension of the LED lamp (support unit 1 ).
  • the base 23 has a side wall 231 on which at least part of the light emitting unit 21 is disposed.
  • the light-emitting unit 21 includes a first light-emitting component 211, and the first light-emitting component 211 includes a first circuit board 2111 and a first light-emitting body 2112, wherein the first light-emitting body 2112 may be an LED lamp bead, or other types of LED light-emitting units.
  • the first circuit board 2111 is attached (the attachment here can be that the first circuit board 2111 is directly attached to the side wall 231, or the first circuit board 2111 is attached to the side wall 231 through an intermediate medium, and the intermediate medium can be glue, or other medium that can complete the effect of connecting the first circuit board 2111 and the side wall 231) on the side wall 231, and form a heat conduction path, so that the heat generated by the first light-emitting body 2112 can pass through the first circuit board. 2111 to conduct heat to the base 23, and dissipate heat through the base 23.
  • the base 23 in this embodiment can be made of metal material or plastic material.
  • the first light-emitting components 211 can be arranged in multiple groups to emit light in different directions.
  • the cross-sectional shape of the base 23 is square, that is, the base 23 has four sets of side walls 231 , and the first light emitting components 211 are correspondingly disposed on each set of side walls 231 .
  • the cross-sectional shape of the base 23 is a polygon, such as an octagon, that is, the base 23 has eight sets of side walls 231 , and the first light emitting components 211 are correspondingly disposed on each set of side walls 231 .
  • At least 60% of the luminous flux generated by the first illuminant 2112 of the lamp is reflected, and then changes the direction of the light and emits from the lamp to reduce the lateral direction of the lamp. light, thereby reducing glare. Further, after at least 70%, 80% or 90% of the luminous flux generated by the first light-emitting body 2112 of the lamp is reflected, the direction of the light is changed and emitted from the lamp.
  • the front surface of the support unit 1 is provided with a reflective surface 11, and at least 25% of the luminous flux generated by the first illuminant 2112 is directly reflected by the reflective surface 11 (this part of the luminous flux is emitted from the LED lamp without secondary reflection), It is emitted from the LED lamp to reduce glare or local strong light when the first illuminant 2112 is directly irradiated. Further, at least 30% of the luminous flux generated by the first light-emitting body 2112 is emitted from the LED lamp after being reflected by the reflective surface 11 . Furthermore, at least 40% of the luminous flux generated by the first light-emitting body 2112 is reflected by the reflective surface 11 and then emitted from the LED lamp.
  • the reflective surface 11 can be configured as a curved surface to improve the uniformity of light output. In addition, the reflective surface 11 can also be configured as a straight surface, which is not limited in the present invention.
  • the light beam control member 26 may be disposed on the first light-emitting body 2112 to change the light-emitting path of the first light-emitting body 2112, thereby achieving better light-emitting effect. Specifically, through the arrangement of the beam control member 26, the light exit path of the first illuminator 2112 can be changed, thereby reducing the light directly emitted from the LED lamp after the first illuminator 2112 passes through the beam control member 26. The light emitted directly from the 2112 (without being reflected by the reflective surface 11 ) is reduced, which can reduce glare.
  • the photoelectric module 2 in other embodiments may not be provided with a light beam control member.
  • the base 23 is provided with a light-shielding portion 232, and the light-shielding portion 232 is located further outside the first light-emitting body 2112 in the light-emitting direction of the LED lamp.
  • the first illuminant 2112 and/or the light beam controlling member 26 are projected onto the plane where the light shielding portion 232 is located, they completely fall within the range of the plane where the light shielding portion 232 is located.
  • the arrangement of the shading portion 232 can reduce the direct light emitted by the first light-emitting body 2112, thereby reducing glare and avoiding local strong light.
  • a reflection surface 2321 is provided on the side of the light shielding portion 232 close to the first light-emitting body 2112 , so as to reflect the light from the light-shielding portion 232 provided on the first light-emitting body 2112 .
  • the reflective surface 2321 reflects the light directly irradiated by the first light-emitting body 2112 to the reflective surface 2321 to the reflective surface 11 for secondary reflection, and then exits the LED lamp.
  • the luminous flux of the first luminous body 2112 directly directed to the reflection surface 2321 does not exceed 40% of the total luminous flux of the first luminous body 2112, so as to control the light loss caused by secondary reflection.
  • the light shielding portion 232 in this embodiment is formed by bending directly on the side wall 231 .
  • the light shielding portion 232 and the side wall 231 can also be formed as a separate structure.
  • the shading portion 232 may not need to be arranged, so as to reduce the direct light emitted by the first light-emitting body 2112 .
  • the light emitted from the first illuminant 2112 is reflected once (only after passing through the reflective surface 11 or the reflective surface 2321 and then directly emitted), and the luminous flux emitted from the LED lamp is greater than that emitted from the LED lamp after being reflected twice or more. luminous flux.
  • the light extraction efficiency of the first light-emitting body 2112 can reach more than 65%. Further, the light extraction efficiency of the first light-emitting body 2112 can reach more than 65%.
  • the light extraction efficiency here refers to the ratio between the luminous flux emitted from the LED lamp and the luminous flux generated by the first illuminant 2112 in the luminous flux generated by the first illuminant 2112 .
  • the LED lamp may further include a second light-emitting component 212, the second light-emitting component 212 includes a second circuit board 2121 and a second light-emitting body 2122, wherein the first light-emitting body 2112 may be an LED lamp bead.
  • the second light-emitting component 212 is disposed inside the base 23 .
  • the power module 24 includes a plurality of electronic components 241, and at least a part of the plurality of electronic components 241 is disposed on the second circuit board 2121, so that the same circuit board can be shared and the structure is simplified.
  • the second light-emitting component 212 may not be provided.
  • the base 23 is provided with a light diffusing portion 27 in the light-emitting direction of the second light-emitting body 2122 (when the second light-emitting body 2122 is not provided, the light diffusing portion 27 can be replaced by an opaque material to form the photoelectric module 2 The outer end surface of the end portion) to diffuse the light generated when the second light-emitting body 2122 works.
  • the edge of the diffusing portion 27 can cover the light shielding portion 232 to prevent the light shielding portion 232 from being exposed.
  • the light shielding portion 232 is projected onto the plane where the light diffusing portion 27 is located, it is completely located on the plane where the light diffusing portion 27 is located.
  • the light diffusing part 27 can be a milky white PC cover, which has a light diffusing function due to its own material properties.
  • the light diffusing portion 27 can be made of a transparent material, such as glass or transparent plastic, and a diffusing layer is provided on the surface of the light diffusing portion 27 to have a light diffusing function.
  • the area of the light diffusing portion 27 covering the front surface of the support unit 1 is not more than 20% of the area in the front surface of the support unit 1 .
  • the area of the front surface of the support unit 1 here refers to the projected area in the direction perpendicular to the light diffusing portion 27 .
  • the area of the front surface of the support unit 1 is the length multiplied by the width of the support unit 1 .
  • the area of the light diffusing portion 27 covering the front surface of the support unit 1 is the area occupied by the light diffusing portion 27 projected onto the support unit 1 , in fact, the area is the length multiplied by the width of the support unit 1 .
  • the area of the light diffusing portion 27 covering the front surface of the support unit 1 accounts for no more than 15% of the area in the front surface of the support unit 1 . Further, the area of the light diffusing portion 27 covering the front surface of the support unit 1 accounts for no more than 15% and more than 7% of the area in the front surface of the support unit 1 .
  • the control of the area of the light diffusing portion 27 can reduce the material cost, and in addition, the volume of the base 23 can be reduced, thereby increasing the distance between the first light-emitting body 2112 and the reflective surface 11, so that the first light-emitting body 2112 can work
  • the reflective surface 11 is arranged to disperse the light generated at the time, so as to make the light output more uniform.
  • the front surface of the LED lamp includes a first area 1001 and a second area 1002 .
  • the first area 1001 may be the area where the reflective surface 11 is located
  • the second area 1002 may be the area where the light diffusing part 27 is located.
  • the ratio of the surface illuminance of the first region 1001 to the surface illuminance of the second region 1002 is 0.1 ⁇ 0.5:1.
  • the ratio of the surface illuminance of the first region 1001 to the surface illuminance of the second region 1002 is configured to be 0.13 ⁇ 0.3:1.
  • the photovoltaic module 2 is detachably connected to the support unit 1 through a mounting unit 3 .
  • the installation unit 3 includes a first member 31 and a second member 32 , the first member 31 is arranged on the photovoltaic module 2 , and the second member 32 is arranged on the support unit 1 , and the first member 31 and the second member 32 can be The connection is realized by disassembling and assembling, so that the photoelectric module 2 and the supporting unit 1 can be detachably connected.
  • the first member 31 includes an elastic body 311 and an arm portion 312 , the arm portion 312 is connected with the elastic body 311 , and the elastic body 311 is disposed on the base 23 .
  • the elastic body 311 can be a spring, which has elastic potential energy when twisted.
  • the second member 32 includes a hole 103 provided on the support unit 1 , and the arm portion 312 passes through the hole 103 and is pressed against the back of the support unit 1 by the elastic potential energy of the elastic body 311 , so as to support the photovoltaic module through the arm portion 312 2.
  • the installation unit 3 may also be connected by a snap-fit structure, a plug-in structure, etc. in the prior art, which will not be repeated here.
  • the wiring unit 22 includes a stopper portion 221 and an elastic arm 222 .
  • the support unit 1 is provided with a through hole 104 , the stopper 221 of the wiring unit 22 abuts on one side surface of the wall of the support unit 1 at the edge of the through hole 104 , and the elastic arm 222 abuts against the support unit at the edge of the through hole 104 .
  • the wall of the support unit 1 is clamped, and the wiring unit 22 is fixed on the support unit 1 .
  • the light generated when the first light-emitting body 2112 is turned on passes through the light flux controlling member 26 and is directed to the reflective surface 11 .
  • the reflective surface 11 is an arc surface, therefore, when the light is projected to different positions of the reflective surface 11 , the light output effect of the LED lamp will show a great difference. Therefore, it is necessary to ensure the positional accuracy of the light beam control member 26 and the first light-emitting body 2112 during assembly, as well as the positional accuracy of the light beam control member 26 and the reflective surface 11 to prevent excessive assembly errors from affecting light output.
  • an installation area is provided on the light beam control member 26, and the first light-emitting body 2112 is disposed in the installation area.
  • the installation area defines the relative positions of the first light-emitting body 2112 and the light beam control member 26 to ensure the assembly accuracy of the two.
  • the displacement distance of the first light-emitting body 2112 relative to the light beam controlling member 26 in any direction is controlled to be greater than 0.05 mm or 0.1 mm, thereby preventing the first light-emitting body 2112 from being displaced.
  • the change of heat and cold that occurs when the 2112 is turned on or off causes the beam control member 26 to expand and contract with heat and cause stress to the first light-emitting body 2112 (when the stress is generated, the positional relationship between the two may be affected, or the beam control may be squeezed and damaged.
  • a limiting portion may be provided at the installation area to limit the displacement distance of the first light-emitting body 2112 .
  • a hole 2601 may be provided on the light beam control member 26, and the hole 2601 defines the installation area, that is, the first light-emitting body 2112 is limited by the inner wall of the hole (the aforementioned limit is formed on the inner wall). part), but can only produce relative displacement within a certain range (for example, the displacement range does not exceed 0.25mm).
  • the light beam control member 26 may be a single body, and is configured in a one-to-one correspondence with the first light-emitting body 2112 .
  • the beam control member 26 can also be integrated on a bracket 263 to form a beam control member module.
  • the light beam control member 26 and the bracket 263 are formed as an integral structure.
  • the light beam controlling member 26 and the bracket 263 are formed as separate structures, and the light beam controlling member 26 is mounted on the bracket 263 (not shown).
  • n 1 is the refractive index of the first medium
  • n 2 is the refractive index of the second medium.
  • a first medium ie, the encapsulant 21121
  • the first light-emitting body 2112 has a second medium between the light-emitting direction and the light beam controlling member 26 . 2602.
  • the absolute value of the difference between the refractive indices of the second medium 2602 and the first medium and the light beam controlling member 26 is less than 0.15. Further, the absolute value of the difference between the refractive indices of the second medium 2602 and the first medium and the light beam controlling member 26 is less than 0.1. From another angle, the ratio of the refractive indices of the first medium and the second medium 2602 is 1:0.9 ⁇ 1.1. Further, the ratio of the refractive index of the first medium to the second medium 2602 is 1:0.95 ⁇ 1.05.
  • the first medium and the second medium 2602 are made of the same material, that is, theoretically, the refractive indices of the two are the same.
  • the ratio of the refractive index of the second medium 2602 to the light beam controlling member 26 is 1:0.9 ⁇ 1.1. Further, the ratio of the refractive index of the second medium 2602 to the beam control member 26 is 1:0.95 ⁇ 1.05.
  • the light-extraction efficiency of the first light-emitting body 2112 at the beam control member 26 is greater than 97% (the light-extraction efficiency here is the ratio of the luminous flux emitted from the beam control member 26 to the luminous flux generated when the first light-emitting body 2112 is lit ). Further, the light extraction efficiency of the first light-emitting body 2112 in the light beam controlling member 26 is greater than 98%. Furthermore, the light extraction efficiency of the first light-emitting body 2112 in the light beam controlling member 26 is greater than 98.5%.
  • the light beam controlling member 26 forms the mounting area in the form of a hole 2601 .
  • a filling layer ie, the aforementioned second medium 2602
  • the air in the gap between the first light-emitting body 2112 in the light-emitting direction and the light beam controlling member 26 is excluded, so as to reduce the light loss caused by reflection.
  • the material of the filling layer can be the same as the material of the encapsulant of the LED lamp bead, so that the two have the same refractive index, thereby reducing light loss.
  • the filling layer can also be made of silicone material.
  • the contact area between the filling layer and the front surface of the first light-emitting body 2112 (the end surface on the light-emitting side) is larger than the cross-sectional area of the first light-emitting body 2112 (the cross-section is parallel to the end surface on the light-emitting side), so that , the bonding strength between the filling layer and the first light-emitting body 2112 can be increased.
  • the cross-sectional area of the first light-emitting body 2112 refers to the value of the length multiplied by the width of the first light-emitting body 2112 .
  • the light-emitting surface of the first light-emitting body 2112 is concave or convex, so that the contact area between the filling layer and the front surface (the end face on the light-emitting side) of the first light-emitting body 2112 is larger than that of the first light-emitting body 2112 cross-sectional area.
  • the light-emitting surface of the first light-emitting body 2112 may be a rough surface (not shown in the figure), so that the contact area between the filling layer and the front surface (the end face on the light-emitting side) of the first light-emitting body 2112 is larger than the cross-section of the first light-emitting body 2112 area.
  • the filling layer covers at least part of the side surface of the first reflective body 2112 to further increase the bonding strength between the filling layer and the first luminous body 2112 , and can further limit or reduce the first luminous body 2112 The displacement distance of the relative beam control member 26 .
  • the installation of the light beam control member 26 can be completed in the following manner: firstly, the first light-emitting body 2112 is mounted on the first circuit board 2111 by welding; the light beam control member 26 is installed on the first light-emitting body 2112 .
  • This installation method may have the following problems: when the first light-emitting body 2112 is mounted on the first circuit board 2111 by soldering, the positional accuracy of the first light-emitting body 2112 is relatively poor.
  • the positional accuracy of the beam control member 26 on the first circuit board 2111 is poor, and the positional consistency between the beam control member 26 and the reflective surface 11 is poor, which affects the light output. .
  • the installation of the light beam control member 26 is performed in the following manner:
  • a beam control member module ie, a plurality of beam control members 26 are integrated on a bracket 263 to form an integrated structure
  • the connection between the first circuit board 2111 and the first light-emitting body 2112 is completed.
  • the first circuit board 2111 is provided with solder, and the first circuit board 2111 is welded with the first light-emitting body 2112 through the solder.
  • the position between the first light-emitting body 2112 and the light beam controlling member 26 is relatively fixed. Therefore, when the first light-emitting body 2112 and the first circuit board 2111 are soldered, the position of the first light-emitting body 2112 will not change due to the fluidity of the solder. In this way, the positional accuracy between the first light-emitting body 2112 and the light beam control member 26, between the light beam control member 26 and the adjacent light beam control member 26, and between the light beam control member 26 and the reflective surface 11 can be guaranteed to ensure the position accuracy of the LED lamps. light effect.
  • the solder by heating the first circuit board 2111 (here, the first circuit board 2111 adopts an aluminum substrate), the solder can be melted, so that the solder and the first circuit board 2111 are connected to each other.
  • a heating table 10 is configured, and the first circuit board 2111 is heated by the heating table 10 .
  • the first circuit board 2111 can also be heated by means of electromagnetic heating or the like. The heating table 10 itself is in the prior art, and details are not repeated here.
  • the bracket 263 of the beam control member is spaced apart from the first circuit board 2111 .
  • an active heat dissipation unit 20 is configured to dissipate heat from the beam control member.
  • the heat dissipation unit 20 may be a fan.
  • the positions of the first circuit board 2111 and the bracket 263 can be positioned by the positioning unit.
  • positioning posts are provided on the bracket 263
  • positioning holes are correspondingly provided on the first circuit board 2111 .
  • the cross-sectional shape of the base 23 of the photovoltaic module 2 can be designed as a polygonal row. As shown in FIG. 18 to FIG. 24 , the cross-sectional shape of the base 23 of the LED lamp is octagonal, that is, the base 23 has 8 sets of side walls 231 , and each set of side walls 231 is provided with the first light-emitting component 211 correspondingly.
  • the number of the first light-emitting bodies 2112 of one of the first light-emitting components 211 is the same as or different from the number of the first light-emitting bodies 2112 of the adjacent first light-emitting components 211 .
  • the reflection surface 11 of the support unit 1 includes a plurality of reflection surfaces 111 (eg, four reflection surfaces 111 ) and a transition surface 112 for connecting two adjacent reflection surfaces 111 .
  • a part of the first light-emitting element 211 corresponds to the reflection surface 111 , and the other part corresponds to the transition surface 112 , so that a dark area is not easily formed at the transition surface 112 .
  • the first light emitting body 2112 includes a first light emitting unit.
  • the light beam control member 26 includes a first lens/first light beam control member 261 and a second lens/second light beam control member 262 , wherein the first lens 261 is provided corresponding to the first light emission of the first light emitting component 211 of the reflection surface 111
  • the second lens 262 is disposed on the first light-emitting body 2112 of the first light-emitting component 211 corresponding to the transition surface 112 .
  • the first light-emitting body 2112 of the first light-emitting component 211 corresponds to the reflective surface 111 , and the second lens 262 may not be provided at this time.
  • the first lens/first light beam controlling member 261 is disposed on the main light-emitting surface of the first light-emitting unit (the first light-emitting body 2112 ).
  • the light shielding portion 232 is disposed at one end of the base 23 but is located at one side of the first light emitting unit.
  • the reflective surface 11 may include a first reflective surface (corresponding to the first optical unit) and a second reflective surface (corresponding to the second optical unit) through which the light emitted by the first light-emitting unit (the first light-emitting body 2112 ) passes.
  • the light beam control member 161 is adjusted so that part of the light emitted by the first light-emitting unit (the first light-emitting body 2112 ) is directly projected onto the first reflective surface, and part of the light emitted by the first light-emitting unit (the first light-emitting body 2112 ) The light is reflected by the light shielding portion 23 and then projected onto the first reflection surface.
  • the first lens 261 in some embodiments is in the shape of a strip, which includes a first bottom surface 2611 .
  • the first bottom surface 2611 is recessed and opens to the first bottom surface 2611 to form a first concave portion 2612 .
  • the inner surface of the concave portion 2612 serves as an incident surface 2613 that receives light emitted from the first light-emitting body 2112 .
  • the first light-emitting body 2112 may be partially or completely accommodated in the first cavity 2612 .
  • the first lens 261 has an exit surface 2614 that controls the exit of incident light from the incident surface 2613 and emits the light to the outside of the first lens 261 .
  • the first light emitter 2112 may be spaced from the exit surface 2614 .
  • a group of first lenses 261 is correspondingly matched with the plurality of first light-emitting bodies 2112 to control the light output of the plurality of first light-emitting bodies 2112 .
  • the optical axis L of the first light-emitting body 2112 and the focal point O of the light-emitting surface of the first light-emitting body 2112 are used as reference points.
  • the incident surface 2613 is a curve which can be distributed symmetrically or asymmetrically about the optical axis L.
  • the optical axis L referred to here refers to the light from the center of the three-dimensional outgoing light beam of the first light-emitting body 2112 .
  • the distance between the point of the incident surface 2613 on one side of the optical axis L (the same side of the first exit surface 26141 ) and the reference point O is greater than that of the incident surface 2613 on the other side of the optical axis L (the same side of the second exit surface 26141 )
  • the distance between the corresponding point of ) and the reference point O can make the incident surfaces 2613 on the two sides corresponding to the optical axis L have different refraction angles, so that the light exit direction can be controlled.
  • the corresponding point here refers to the same angle between the line connecting the two points and the reference point O and the optical axis L.
  • the outgoing surface 2614 includes a first outgoing surface 26141 and a second outgoing surface 26142.
  • the first outgoing surface 26141 can be configured as a convex curved surface (condensing curved surface), and the second outgoing surface 26142 can be configured as an inwardly concave curved surface (diffusing curved surface). ).
  • the connection between the first exit surface 26141 and the second exit surface 26142 has an inflection point, and the inflection point is a smooth transition.
  • the first exit surface 26141 plays a role of concentrating light, and the second exit surface 26142 plays a role of light diffusion.
  • the luminous flux emitted from the first emitting surface 26141 is greater than the luminous flux emitted from the second emitting surface 26142 .
  • the illumination in the inner area is too large, and the first emitting surface 26141 plays the role of concentrating and redirecting the light. light can improve the surface illuminance of the relatively outer area of the reflective surface 111 .
  • the center line of the reflective surface 111 can be roughly used as the boundary between the inner area and the outer area, and the ratio of the average illuminance of the surface of the inner area to the average illuminance of the surface of the outer area is limited to 1:0.2-1, so as to satisfy the Illumination uniformity on the surface of the inner and outer regions to make the light output more uniform.
  • the first exit surface 26141 may correspond to a first area of the first reflection surface
  • the second exit surface 26142 may correspond to a second area of the first reflection surface
  • the first area is opposite to the first area of the first beam control member 261 .
  • the distance is greater than the distance of the second area relative to the first beam controlling member 261 , wherein the ratio of the average illuminance of the surface of the first area to the average illuminance of the surface of the second area is defined as 1:0.2 ⁇ 1.
  • the first exit surface 26141 extends from one side to the other side of the optical axis L.
  • the second exit surface 26142 is only located on one side of the optical axis L.
  • FIG. 25 a light pattern diagram when the light emitted by the first light-emitting body in one direction (the width section of the first lens 261 ) passes through the first lens is shown.
  • the luminous flux of one side of the optical axis L in the width direction of the first lens 261 is greater than that of the other side. Further, the ratio of the luminous flux on one side of the optical axis L in the width direction of the first lens 261 to the luminous flux on the other side is greater than 1.5, 2 or 2.5.
  • the second lens 262 (second light beam control member) may be arranged in a one-to-one correspondence with the first light-emitting body 2112 (second light-emitting unit), or may be arranged as a group of first
  • the second lens 262 is matched with a plurality of groups of the first light-emitting bodies 2112 .
  • the first light emitting body 2112 may include a first light emitting unit corresponding to the first light beam controlling member 261 and a second light emitting unit corresponding to the second light beam controlling member 262 .
  • the second light beam controlling member 262 is disposed on the main light emitting surface of the second light emitting unit, and the light shielding portion 232 is disposed on one end of the base 23 and is located on one side of the second light emitting unit.
  • the second lens 262 and the first light-emitting body 2112 are arranged in a one-to-one correspondence for description.
  • the second lens 262 includes a second bottom surface 2621 , the second bottom surface 2621 is concave and opens to the second bottom surface 2621 to form a second concave portion 2622 , and the inner surface of the second concave portion 2622 serves as an incident surface for receiving the light emitted from the first light-emitting body 2112 2623.
  • the first light-emitting body 2112 may be partially or fully accommodated in the second cavity 2622 (hole).
  • the first light emitting body 2112 may maintain a distance from the incident surface 2623 .
  • the second lens 262 has an exit surface 2624 , and the exit surface 2624 controls the exit of the incident light from the incident surface 2623 and emits the light to the outside of the second lens 262 .
  • the exit surface 2624 is curved.
  • the first light-emitting body 2112 On the cross section of the second lens 262 in a first direction Y (the first direction Y is the length direction of the second lens 262 , the length direction is perpendicular or substantially perpendicular to the extending direction of the first lamp panel 2111 ), the first light-emitting body 2112
  • the optical axis L and the focus O of the light-emitting surface of the first light-emitting body 2112 are used as reference points.
  • the incident surface 2623 includes a curve, the curve is concave relative to the first light-emitting body 2112 , and the curve can be symmetrical or asymmetrical about the optical axis L.
  • the optical axis L referred to in this embodiment refers to the light from the center of the three-dimensional outgoing light beam from the first light-emitting body 2112 .
  • the exit surface 2624 includes a first exit surface 26241 and a second exit surface 26242 .
  • the first outgoing surface 26241 shows a convex curve
  • the second outgoing surface 26242 exhibits a concave curve.
  • the first outgoing surface 26241 is a convex curved surface (diffusing curved surface)
  • the second outgoing surface 26242 is an inwardly concave curved surface (condensing curved surface)
  • the connection between the first outgoing surface 26241 and the second outgoing surface 26242 Has an inflection point where the transition is smooth.
  • the first emitting surface 26241 plays a role of diffusing, and the second emitting surface 26142 plays a role of concentrating light.
  • the luminous flux emitted from the first emitting surface 26241 is greater than the luminous flux emitted from the second emitting surface 26242 .
  • the distance between the transition surface 112 and the second lens 262 gradually increases in the outward direction, and the second exit surface 26242 corresponds to the inner area opposite to the transition surface 112 (the relative distance between the transition surface 112 and the second lens 262 is relatively short), and the first An exit surface 26241 corresponds to the opposite outer area of the transition surface 112 (the relative distance between the transition surface 112 and the second lens 262 is relatively far).
  • the illumination in the inner area is too large, and the first emitting surface 26241 plays the role of concentrating and redirecting the light.
  • light which can enhance the surface illuminance of the relatively outer regions of the transition surface 112 .
  • roughly the midline of the transition surface 112 serves as the boundary between the inner region and the outer region, and the ratio of the average illuminance of the surface of the inner region to the average illuminance of the surface of the outer region is limited to 1:0.2-1, so as to satisfy the inner region. Illumination uniformity on the surface and the outer area surface to make the light output more uniform.
  • the first exit surface 26241 corresponds to a third area of the second reflection surface
  • the second exit surface 26242 corresponds to a fourth area of the second reflection surface
  • the third area is opposite to the second beam control member 262
  • the distance is greater than the distance of the fourth region relative to the second beam controlling member 262 , wherein the ratio of the average illuminance of the surface of the third region to the average illuminance of the surface of the fourth region is defined as 1:0.2 ⁇ 1.
  • the first exit surface 26241 extends from one side to the other side of the optical axis L.
  • the second exit surface 26242 is only located on one side of the optical axis L.
  • the first light-emitting body 2112 On a cross section of the second lens 262 in a second direction X (the second direction X is the width direction of the second lens 262 , the width direction is parallel or substantially parallel to the extending direction of the first lamp panel 2111 ), the first light-emitting body 2112
  • the optical axis L and the focus O of the light-emitting surface of the first light-emitting body 2112 are used as reference points.
  • the incident surface 2623 includes a curve, the curve is concave relative to the first light-emitting body 2112 , and the curve can be symmetrical or asymmetrical about the optical axis L.
  • the optical axis L refers to the light from the center of the three-dimensional outgoing light beam from the first light-emitting body 2112 .
  • the exit surface 2624 shows a convex curve. In some embodiments, on a cross section of the second lens 262 in a second direction X, the exit surface 2624 only shows a convex curve (does not include a concave curve).
  • the second lens 262 is configured to condense light, so that the light generated by the first light-emitting body 2112 corresponding to the transition surface 112 is concentrated at the transition surface 112 as much as possible to prevent excessive light
  • the light is emitted to the emitting surface 111 , thereby enhancing the local illuminance of the reflective surface 111 , thereby affecting the illuminance uniformity of the entire reflective surface 11 .
  • FIG. 26 a light pattern diagram of the light emitted by the first light-emitting body in the first direction Y and the second direction X when passing through the second lens is shown.
  • the luminous flux on one side of the optical axis L in the first direction Y is greater than the luminous flux on the other side.
  • the ratio of the luminous flux on one side of the optical axis L in the width direction of the first lens 261 to the luminous flux on the other side is greater than 1.5, 2 or 2.5.
  • the second lens 262 mainly plays a role of condensing light.
  • an optoelectronic module for an LED lamp is provided.
  • FIGS. 27 and 28 there are shown a perspective view and a top view, respectively, of an optoelectronic module 100 according to an embodiment of the present invention.
  • the optoelectronic module 100 includes a plurality of strip lenses 102 (which can be the same as the first lens 261 in the foregoing embodiment or substantially the same as the first lens 261 in the foregoing embodiment) and a plurality of particle lens groups staggered on each side. 104.
  • Each particle lens group 104 includes one or more particle lenses 106 (which may be the same as the second lens 262 in the previous embodiment or substantially the same as the second lens 262 in the previous embodiment).
  • each of the strip lenses 102 and each of the particle lens groups 104 in FIG. 27 are mounted on a base, but it will be appreciated that they may be assembled together in other ways.
  • the cross-sectional shape of the optoelectronic module 100 shown in FIGS. 27 and 28 is an octagon, this is for illustrative purposes only and is not meant to limit the scope of the present invention, and the optoelectronic module 100 may be any polygonal shape (for example, a quadrilateral or dodecagonal shape).
  • each strip lens 102 includes an incident surface of the strip lens and an exit surface of the strip lens, and light enters from the incident surface of the strip lens and exits from the exit surface of the strip lens.
  • FIG. 30 further shows a six-sided view of a single bar lens 102 .
  • the left view and the right view show the bar lens incident surface curve 202 and the bar lens exit surface curve 204 observed along the elongated direction of the bar lens 102 .
  • the entrance surface curve 202 determines the shape of the entrance surface of the strip lens
  • the exit surface curve 204 determines the shape of the exit surface of the strip lens.
  • the entrance surface of the strip lens is used to concentrate the incident light.
  • the exit surface curve 204 of the strip lens 102 can be represented by a first polynomial.
  • a schematic perspective view of a single particle lens 106 is shown. Similar to the strip lens 102 , the particle lens 106 also includes an incident surface of the particle lens and an exit surface of the particle lens, and the exit surface of the particle lens is a free-form surface. As shown in Fig. 31, for the exit surface of the particle lens, since light needs to be controlled in both the meridional direction and the sagittal direction, for the above-mentioned free-form surface, a set of meridional plane curves viewed from the meridional direction and a set of meridional planes observed from the sagittal direction are designed respectively. The sagittal curve group viewed in the direction, the meridional direction and the sagittal direction are shown in the figure.
  • the meridional plane is the plane formed by the chief ray of the off-axis object point and the main axis of the optical system
  • the sagittal plane is the plane that passes through the chief ray of the off-axis object point and is perpendicular to the meridional plane.
  • a further six-sided view of a single particle lens 106 is shown.
  • the left and right views show a set of meridional plane curves viewed from the meridional direction, the set of meridional plane curves including a first curve 302 and a second curve 304 that can be represented by a second polynomial.
  • a set of sagittal curves viewed from the sagittal direction, is shown, the set of sagittal curves comprising a third curve 306, which can be represented by a third polynomial, and a fourth polynomial, which can be represented by a fourth polynomial.
  • Fourth curve 308 a further six-sided view of a single particle lens 106 is shown.
  • the left and right views show a set of meridional plane curves viewed from the meridional direction, the set of meridional plane curves including a first curve 302 and a second curve 304 that can be represented by a second polynomial.
  • the above-mentioned optoelectronic module 100 adopts a new polygonal lens structure obtained by combining a strip lens and a particle lens, and this structure has never appeared in any lamps.
  • the curves corresponding to the respective incident surfaces and exit surfaces of the strip lens 102 and the particle lens 106 can be adjusted to meet various requirements of the lamps, for example, to make the light passing through the polygonal lens device reach all the surfaces very uniformly. expected range.
  • the above-mentioned optoelectronic module 100 when used in, for example, a Troffer lamp, it is desirable that the light of the illuminant can reach the base plate as uniformly as possible after passing through the incident surface and the exit surface of the strip lens 102 .
  • a "majority" here may, for example, be about at least 80%, 85%, 90% or 95%.
  • a three-dimensional representation of the strip lens exit surface curve 204 has been obtained in a computer. Further, the specific expression of the curve can be obtained by performing fitting (eg, polynomial fitting, least squares method, etc.) through software.
  • fitting eg, polynomial fitting, least squares method, etc.
  • polynomial fitting may be performed on the obtained curve 204 of the exit surface of the strip lens, and the first polynomial corresponding to the curve 204 of the exit surface of the strip lens may be set as: p10+p11x1+p12x12+p13x13+p14x14+ p15x15+p16x16, where the range of x1 is set to (-9, 10.8), the following parameter information can be obtained by software fitting:
  • the above SSE is the sum variance, which is the sum of the squares of the errors between the fitting results and the corresponding points of the original data. The closer it is to 0, the better the fitting effect is;
  • R-square is the correlation coefficient, which is an index to evaluate the linear correlation of two variables. , which is used to reflect the linear correlation between the fitting result and the original data. The closer to 1, the better the fitting effect;
  • Adjusted R-square is the correction coefficient of determination, which is used to offset the influence of the number of samples on R-Square. It is also used for It reflects the linear correlation between the fitting result and the original data. The closer it is to 1, the better the fitting effect is;
  • RMSE is the mean square error, which is the mean value of SSE, and the closer it is to 0, the better the fitting effect.
  • the first polynomial p10+p11x1+p12x12+p13x13+p14x14+p15x15+p16x16 obtained above is not unique, if it is set to p10'+p11'x1+p12'x12+p13'x13 +p14'x14+p15'x15+p16'x16+p17'x17, and the range of x1 is also set to (-9,10.8), then the coefficients p17' to p10' can be obtained by software fitting.
  • the above polynomial can also be set to p10"+p11"x1+p12"x12+p13"x13+p14"x14+p15"x15, etc., as long as the fitting accuracy meets the expected value, and will not be repeated here.
  • the range of x1 is not limited to the above (-9, 10.8), and other ranges can also be selected according to actual conditions.
  • the curve 202 of the entrance surface of the strip lens can be set as an arc.
  • the curve 202 of the entrance surface of the strip lens is not necessarily a complete arc, as long as it can cooperate with the curve 204 of the exit surface of the strip lens, most of the light rays can reach the bottom plate evenly after passing through the strip lens 102 That's it.
  • the above-mentioned optoelectronic module 100 when used in, for example, a Troffer lamp, it is desirable that the light of the illuminant can reach the bottom plate as uniformly as possible after passing through the incident surface and the exit surface of the particle lens 106 .
  • a substantial portion eg, at least about 80%, 85%, or 90%
  • the first curve 302 , the second curve 304 , the third curve 306 and the fourth curve 308 of the particle lens 106 can be obtained.
  • a polynomial fit may be performed on the resulting second curve 304, third curve 306, and fourth curve 308, respectively.
  • the second polynomial corresponding to the second curve 304 can be set as: p20+p21x2+p22x22+p23x23+p24x24+p25x25+p26x26, where the range of x2 is set to (-10.5, 10.8), then software fitting can Get the following parameter information:
  • the third polynomial corresponding to the third curve 306 can be set as: p30+p31x3+p32x32+p33x33, where the range of x3 is set to (-9.8, 9.8), then the following parameter information can be obtained by software fitting:
  • the fourth polynomial corresponding to the fourth curve 308 can be set as: p40+p41x4+p42x42+p43x43, where the range of x4 is set to (-11.1, 11.1), then the following parameter information can be obtained by software fitting:
  • the expressions corresponding to each curve of the particle lens 106 obtained above are not unique, and polynomials with more or less terms than the above-mentioned polynomial terms can be set for each curve, and After taking the same or different ranges for each x2, x3, and x4, a polynomial with more or less items is obtained by software fitting, as long as the fitting accuracy of the obtained polynomial meets the expected value, and no more Repeat.
  • the first curve 302 of the particle lens 106 may be set as an arc.
  • the first curve 302 is not necessarily a complete arc, as long as it can cooperate with the second curve 304 , the third curve 306 and the fourth curve 308 so that most of the light rays can pass through the particle lens 106 . reach the bottom plate evenly.
  • a groove (not shown) can be provided for the particle lens 106, and the groove is designed to contain the incident surface of the particle lens for focusing the received light.
  • the groove may also serve to accommodate the illuminator (in whole or in part). Of course, the groove may also not accommodate the illuminant.
  • the optoelectronic module 100 can be designed as an octagonal structure, wherein four strip lenses 102 and four particle lens groups 104 are arranged alternately on eight sides. This design is carried out because it is the best in terms of both aesthetics and lighting effects. However, this does not mean that the polygonal lens device of the present invention must adopt an octagonal shape, as mentioned above, it can also adopt other suitable shapes.
  • each particle lens group 104 may include two particle lenses 106 .
  • the particle lens group 104 can also be designed to have other numbers of particle lenses 106, such as three particle lenses.
  • the polygonal lens device for a luminaire according to the present invention has been described so far, which is not present in any luminaire.
  • This polygonal lens structure using a combination of strip lenses and particle lenses can meet various requirements for the direction of light by adjusting the curves corresponding to the incident surface and the exit surface of each lens as required.
  • the polygonal lens device of the present invention can make most of the light emitted by the illuminant reach the base plate of the lamp very uniformly, so that the illumination on the base plate is uniform, and the glare problem can be effectively solved.
  • a lamp is also provided.
  • the light fixture 400 includes an optoelectronic module 402 and a base plate 404 .
  • FIG. 34 shows a schematic diagram of the lamp 400 after disassembly and assembly.
  • the optoelectronic module 402 includes an integrated light-emitting component 406 and a power control component 408 .
  • one or more LED illuminators are correspondingly arranged for each of the strip lenses 410 and the particle lenses 412 , for example, LED lamp beads (the arrangement position of the LED illuminators is shown in the figure as in each strip lens 410 and diagonally above the particle lens 412). It can be understood that, because this FIG.
  • the base plate 404 also serves as the lampshade of the lamp 400, which supports the optoelectronic module 402. At the same time, the size of the base plate 404 is specially designed to be adapted to the optoelectronic module 402, so as to receive most of the light emitted by the optoelectronic module 402.
  • the above-mentioned lamp 400 adopts the polygonal lens device according to the present invention, most of the light (with a beam angle of about 90°) emitted by the LED illuminator (usually having a beam angle of 120°) can be projected evenly onto the bottom plate 404 on.
  • the base plate 404 is also specially designed adaptively according to the polygonal lens device, so that most of the received light can be reflected to the irradiation surface.
  • the optoelectronic module 402 of the above-mentioned lamp 400 integrates power control, light-emitting components, and wiring space, which makes the appearance of the lamp simple and beautiful.
  • the light emitting assembly 406 may be disposed on the top of the power control assembly 408 and inclined relative to the bottom plate 404, so that the light emitted by the light emitting assembly 406 is more likely to be directed to the bottom plate 404 without substantially leakage from the luminaire, further improving light efficiency and reducing glare.
  • each particle lens 412 may be correspondingly provided with one LED light-emitting body.
  • each strip lens 410 may be correspondingly provided with five LED light-emitting bodies.
  • the bottom plate 404 may be one-shot stretch-formed from a cold-rolled sheet of SPCC (ie, a steel material that complies with "Cold-Rolled Carbon Steel Sheets and Strips for General Use” in accordance with the Japanese Industrial Standards (JIS) regulations). Therefore, the appearance is simplified while ensuring the strength, and the cost of the bottom plate 404 manufactured by this method is lower than that of other sheet metal splicing methods.
  • SPCC cold-rolled sheet of SPCC
  • the lamp adopts an octagonal photoelectric module, and four strip lenses and four particle lens groups are arranged alternately on eight sides, and two particles are arranged in each particle lens group. lens.
  • the lamp adopts an octagonal photoelectric module, and four strip lenses and four particle lens groups are arranged alternately on eight sides, and two particles are arranged in each particle lens group. lens.
  • five LED light beads are arranged under each bar lens, and two LED light beads are arranged under each particle lens, and these LED light beads adopt a single-row structure.
  • the whole light flux of the above-mentioned lamp example is 4000 lumens, and the luminous efficiency is 74%, which improves the luminous efficiency compared with traditional LED lamps.
  • the UGR (Unified Glare Value) of this luminaire example is 21.33 (for commercial buildings, theater buildings, etc., the UGR is required to be lower than 22), which greatly reduces the glare compared with traditional LED lamps.
  • the ratio of the average illuminance to the maximum illuminance on the base plate of this luminaire example is 1:1.2, which can provide uniform and soft illumination.
  • a photoelectric module 4 is provided, which can be applied to the LED lamp in the embodiment of the present invention.
  • the optoelectronic module 4 includes a light emitting unit 41 , a base 42 and an optical member 43 .
  • the base 42 is connected to the support unit 1 .
  • the base 42 may include a bottom plate 421 and a base body 422, the base plate 421 and the base body 422 are fixed, and an accommodation space is formed between the base plate 421 and the base body 422 (that is, inside the base 42), and LED lamps can be arranged inside the accommodation space power supply.
  • the light-emitting unit 41 is fixed on the base body 422 .
  • a first connecting wall 4221 is disposed on one end of the opening of the base body 422
  • a second connecting wall 4211 is disposed on the bottom plate 421 , and the first connecting wall 4221 and the second connecting wall 4211 are attached and fixed.
  • the arrangement of the second connecting wall 4211 can increase the contact area between the base 422 and the bottom plate 421 , so that the heat generated when the light emitting unit 41 works is quickly conducted to the bottom plate 421 through the base 422 .
  • the bottom plate 421 When the bottom plate 421 is attached to the support unit 1 , the bottom plate 421 and the support unit 1 form heat conduction, which facilitates heat conduction to the support unit 1 and dissipates heat through the larger heat dissipation area on the support unit 1 .
  • the light-emitting unit 41 includes a first light-emitting unit 411 and a second light-emitting unit 412 .
  • the light-emitting direction of the first light-emitting unit 411 is different from the light-emitting direction of the second light-emitting unit 412 .
  • the seat body 422 has a first mounting surface 4222 and a plurality of second mounting surfaces 4223, which are arranged around the first mounting surface 4222.
  • the first mounting surface 4222 is parallel or substantially parallel to the horizontal plane, while the second mounting surface 4223 forms an included angle with the horizontal plane, and the included angle is an acute angle (the angle is 45 degrees to 85 degrees) between degrees).
  • the first light emitting units 411 are mounted on the first mounting surface 4222
  • the second light emitting units 412 are mounted on the second mounting surface 4223 in a one-to-one correspondence.
  • the second installation surface 4223 can be provided with 8 groups, and the 8 groups of the second installation surface 4223 are evenly distributed on the base body 422 around the first installation surface 4222 .
  • the number of the second mounting surfaces 4223 can also be set to 4 groups, 5 groups or 6 groups.
  • the first light-emitting unit 411 includes a first circuit board 4111 and a first light-emitting body 4112, wherein the first light-emitting body 4112 can be an LED lamp bead or other types of LED light-emitting units.
  • the first circuit board 4111 is at least partially attached (the attaching here can be that the first circuit board 4111 is directly attached to the first mounting surface 4222, or the first circuit board 4111 can be attached to the first mounting surface through an intermediate medium 4222, the intermediate medium can be glue, or other medium that can complete the connection effect between the first circuit board 4111 and the first mounting surface 4222) on the first mounting surface 4222, and form a heat conduction path, so that the first light-emitting body 4112 works
  • the heat generated during the process can be thermally conducted to the base body 422 through the first circuit board 4111 and dissipated by the base body 422 .
  • the area of the first mounting surface 4222 is at least 10% of the area of the bottom surface of the first circuit board 4111 to ensure heat conduction between the first circuit board 4111 and the first mounting surface 4222 .
  • the area of the first mounting surface 4222 does not exceed 30% of the area of the bottom surface of the first circuit board 4111 to save material cost.
  • the second light-emitting unit 412 includes a second circuit board 4121 and a second light-emitting body 4122, wherein the second light-emitting body 4122 may be an LED lamp bead, or other types of LED light-emitting units.
  • the second circuit board 4121 is at least partially attached (the attaching here can be that the second circuit board 4121 is directly attached to the second mounting surface 4223, or the second circuit board 4121 is attached to the second mounting surface through an intermediate medium 4223, the intermediate medium can be glue, or other medium that can complete the connection effect of the second circuit board 4121 and the second mounting surface 4223) on the second mounting surface 4223, and form a heat conduction path, so that the second light emitting body 4122 works
  • the heat generated during the process can be thermally conducted to the base body 422 through the second circuit board 4121 and dissipated through the base body 422 .
  • the light effects of the first light emitting unit 411 and the second light emitting unit 412 may be the same or different.
  • the light efficiency of the second light-emitting unit 412 is higher than that of the first light-emitting unit 411, so that the photoelectric module 4 has more luminous flux in the lateral direction, so that more light is emitted through the reflection of the support unit 1, thereby avoiding local Strong light, improve the uniformity of light output, and reduce glare.
  • the optical member 43 is covered on the base 42 to perform optical processing on the light generated when the first light emitting unit 411 and the second light emitting unit 412 work.
  • the optical member 43 can be made of plastic material, such as acrylic, so as to play the role of light diffusion, so as to make the light output more uniform.
  • the optical member 43 is provided with a bottom wall 431, and the optical member 43 is connected with the first connecting wall 4221 or the second connecting wall 4211 through the bottom wall 431, so as to realize the fixing of the optical member 43 and the base 42, so that the optoelectronic module 4 form an integral structure.

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Abstract

一种LED灯具，包括：一支承单元（1），至少包含复数个第一反射面（11）；光电模组（2），其可拆卸的固定至支承单元（1），该光电模组（2）包含一基座（23）、一第一发光单元（21）、一第一光束控制构件（261）及一遮光部（232），其中该第一发光单元（21）设置在该基座（23）上，该第一光束控制构件（261）配置在该第一发光单元（21）的主要出光面上，该遮光部（232）设置在该基座（23）的一端部且位于第一发光单元（21）的一侧；以及接线单元（22），其固定于支承单元（1）上，该接线单元（22）电性连接该第一发光单元（21），其中，该第一发光单元（21）所发出的光经由该第一光束控制构件（261）所调节使部分该第一发光单元（21）所发出的光直接投射至该第一反射面（11）且部分该第一发光单元（21）所发出的光经由该遮光部（232）反射后在投射至该第一反射面（11）。

Description

一种LED灯具 技术领域
本发明属于LED照明装置的技术领域，具体地说是涉及一种LED灯具。
背景技术
LED照明因为具有节能、寿命长等优点而被广泛采用。现有技术中的LED灯具，常见的包括平板灯和格栅灯。
现有技术中的平板灯，通常包括灯条、底框、电源、导光板和扩散板，灯条设置于底框的侧部，以提供侧向出光，灯条发出的光经导光板后，从扩散板射出。现有技术中的平板灯具有以下缺点：平板灯的电源设置于底框背面，会额外占用高度空间，不利于平板灯的高度的控制；灯条发出的光经导光板和扩散板后，其光损较大，导致平板灯出光效率较低；导光板成本较高，不利于平板灯的成本控制，平板灯眩光控制较为一般；平板灯损坏后，只能整体替换，使用成本较高。
现有技术中的格栅灯，包括底框、光源(光源可采用灯条、荧光灯管或LED灯管)和格栅，光源固定在底框上，光源出光侧设置格栅。现有技术中的格栅灯具有以下缺点：电源设置于底框背面，会额外占用高度空间，不利于平板灯的高度的控制；设置格栅的方式，不利于格栅灯的高度控制，使得包装运输成本提高；格栅的成本较高，不利于整灯成本控制。
综上所述，鉴于现有技术的LED灯具存在的不足和缺陷，如何设计LED灯具，来解决眩光的问题，是亟待本领域技术人员解决的技术问题。
发明内容
在此摘要描述关于本发明的许多实施例。然而所述词汇本发明仅仅用来描述在此说明书中揭露的某些实施例(不管是否已在权利要求项中)，而不是所有可能的实施例的完整描述。以上被描述为本发明的各个特征或方面的某些实施例可以不同方式合并以形成LED灯具或其中一部分。
本发明实施例提供一种新的LED灯具，以及各个方面的特征，以解决上述问题。
本发明实施例提供一种LED灯具，其特征在于，包括：
一支承单元，至少包含复数个第一反射面；
光电模组，其固定至所述支承单元，该光电模组包含一基座、一第一发光单元、 一第一光束控制构件及一遮光部，其中该第一发光单元设置在该基座上，该第一光束控制构件配置在该第一发光单元的主要出光面上，该遮光部设置在该基座的一端部且位于第一发光单元的一侧；以及
接线单元，其固定于所述支承单元上，该接线单元电性连接该第一发光单元，其中，该第一发光单元所发出的光经由该第一光束控制构件所调节使部分该第一发光单元所发出的光直接投射至该第一反射面且部分该第一发光单元所发出的光经由该遮光部反射后在投射至该第一反射面。
本发明实施例中该第一光束控制构件更包含至少一孔洞，该孔洞适于容置该第一发光单元。
本发明实施例中该第一光束控制构件更包含一第一出射面与一第二出射面，该第一出射面为外凸曲面，该第二出射面为内凹曲面，该第一出射面光射出的光通量大于该第二出射面光射出的光通量。
本发明实施例中该第一出射面为聚光曲面，该第二出射面为扩散曲面，该第一出射面光射出的光通量大于该第二出射面光射出的光通量。
本发明实施例中该第一出射面对应于该第一反射面的一第一区域，该第二出射面对应于该第一反射面的一第二区域，该第一区域相对于该第一光束控制构件的距离大于该第二区域相对于该第一光束控制构件的距离，其中该第一区域的表面的平均照度与该第二区域的表面的平均照度比值限定为1：0.2～1。
本发明实施例中该支承单元更包含复数个第二反射面，该光电模组更包含一第二发光单元及一第二光束控制构件，该第二发光单元设置在该基座上，该第二光束控制构件配置在该第二发光单元的主要出光面上，该遮光部设置在该基座的一端部且位于第二发光单元的一侧。
本发明实施例中该第二光束控制构件更包含至少一孔洞，该孔洞适于容置该第二发光单元。
本发明实施例中该第二光束控制构件更包含一第三出射面与一第四出射面，该第三出射面为外凸曲面，该第四出射面为内凹曲面，该第三出射面光射出的光通量大于该第四出射面光射出的光通量。
本发明实施例中该第三出射面为聚光曲面，该第四出射面为扩散曲面，该第三出射面光射出的光通量大于该第四出射面光射出的光通量。
本发明实施例中该第三出射面对应于该第二反射面的一第三区域，该第四出射面对应 于该第二反射面的一第四区域，该第三区域相对于该第二光束控制构件的距离大于该第四区域相对于该第二光束控制构件的距离，其中该第三区域的表面的平均照度与该第四区域的表面的平均照度比值限定为1：0.2～1。
本发明相比现有技术突出且有益的技术效果是：结构简单，设计合理；发光单元、电源模组及基座结合为一体，从而可整体进行安装，实现光电模组的模块化安装。
附图说明
图1是本发明实施例的LED灯具的主视示意图；
图2是本发明实施例的LED灯具的后视示意图；
图3是本发明实施例的LED灯具的立体示意图一；
图4是本发明实施例的LED灯具的立体示意图二；
图5是图4中C处的放大图；
图6是本发明实施例的LED灯具的剖视示意图；
图7是图6中的A处的放大图；
图8是图7中的B处的放大图；
图9是支承单元的立体示意图；
图10是光电模组的立体示意图；
图11是一实施例中的光束控制构件与第一发光组件配合的立体示意图；
图12是一实施例中的光束控制构件与第一发光组件配合的剖视示意图；
图13是图12中D处的放大图；
图14是一实施例中的光束控制构件与第一发光组件配合的局部剖视图；
图15是一实施例中的光束控制构件与第一发光组件配合的局部剖视图，显示第一发光体表面内凹；
图16是一实施例中的光束控制构件与第一发光组件配合的剖视示意图，显示光束控制构件为单个体；
图17是一实施例中光束控制构件与第一发光组件的安装示意图；
图18是一实施例中的LED灯具的立体结构示意图；
图19是第一透镜与第一发光体的配合示意图；
图20是第一透镜的立体结构示意图；
图21是第二透镜的立体结构示意图一；
图22是第二透镜的立体结构示意图二；
图23是第二透镜与第一发光体的配合示意图一，限制第一方向上的截面；
图24是第二透镜与第一发光体的配合示意图一，限制第二方向上的截面；
图25是第一发光体透过第一透镜的光型图；
图26是第一发光体透过第二透镜的光型图；
图27和图28分别示出了根据本发明的实施例的多边形透镜装置的立体图和俯视图；
图29示出了根据本发明的实施例的多边形透镜装置中的条形透镜从长条形方向观察的光路示意图；
图30示出了图29中所示条形透镜的六面视图；
图31示出了根据本发明的实施例的多边形透镜装置中的单个颗粒透镜的立体示意图；
图32示出了图31中所示颗粒透镜的六面视图；
图33示出了根据本发明的实施例的灯具的立体示意图；
图34示出了图33中灯具在拆装后的示意图；
图35为将图33中灯具整个拆下后颠倒放置所看到的立体示意图；
图36示出了根据本发明的灯具的一个实例；
图37是第二实施例中的光电模组与支承单元的配合示意图；
图38是第二实施例中的光电模组的立体结构示意图一；
图39是第二实施例中的光电模组的立体结构示意图二；
图40是光电模组去掉光学构件的立体结构示意图；
图41是光电模组去掉光学构件和发光单元的立体结构示意图；
图42是基座的立体结构示意图一。
具体实施方式
现在将在下文中参考附图更完整地描述本发明的实施例，在这些附图中示出了本发明的实施例。然而，本发明可以以诸多不同的形式体现，并且不应被解释为限于本文中阐述的实施例。相反，提供这些实施例使得本公开将为彻底且完整的，并且将向本领域中的技术人员完全地传达本发明的范围。相同的标号在图中指示相同的元件。
将理解的是，尽管用语第一、第二等可在本文中使用来描述各种元件，但这些元件不应 由这些用语限制。这些用语仅用于将一种元件与另一种元件彼此区分开。例如，第一元件可被称为第二元件，并且类似地，第二元件可被称为第一元件，而不脱离本发明的范围。当在本文中使用时，用语“和/或”包含相关联的所列项目中的一个或多个的任意组合和全部组合。
将理解的是，当诸如层、区域或衬底的元件称为“在”另一个元件“上”或延伸“到”另一个元件“之上”时，元件可直接地在另一个元件上或直接地延伸到另一个元件之上，或也可存在中间元件。相反地，当元件被称为“直接地在”另一个元件“上”或“直接地延伸到”另一个元件“之上”时，不存在中间元件。还将理解的是，当元件称为“连接”或“联接”到另一个元件上时，其可直接地连接或联接到另一个元件上，或可存在中间元件。相反地，当元件称为“直接地连接”或“直接地联接”到另一个元件上时，不存在中间元件。
可在本文中使用诸如“下方”或“上方”或“上部”或“下部”或“水平”或“垂直”的相对用语来描述如图中所图示的一个元件、层或区域与另一个元件、层或区域的关系。将理解的是，这些用语意在涵盖除图中所描绘的定向之外的不同的器件定向。在本发明中，所述“垂直”、“水平”、“平行”定义为：包括在标准定义的基础上±10％的情形。例如，垂直通常指相对基准线夹角为90度，但在本发明中，垂直指的是包括80度至100以内的情形。
本文中使用的用语仅出于描述特定实施例的目的，并且并非意在限制本发明。当在本文中使用时，除非上下文另外清楚地说明，否则单数形式“一种”、“一个”和“该”意在也包含复数形式。还将理解的是，当在本文中使用时，用语“包括”、“包括了”、“包含”和/或“包含了”指定了所陈述的特征、整数、步骤、操作、元件和/或部件的存在，但并不排除一个或多个其它特征、整数、步骤、操作、元件、部件和/或它们的组合的存在或增加。
除非另外限定，否则本文中使用的所有用语(包含技术和科学用语)具有与本发明所属领域中的普通技术人员通常所理解的含义相同的含义。还将理解的是，本文中使用的用语应解释为具有与它们在本说明书的上下文和相关领域中的含义相一致的含义，并且不应以理想化或过度正式的意义来解释，除非在本文中明确地如此限定。
除非另外明确地声明，否则比较性数量用语(诸如“小于”和“大于”)意在涵盖相等的概念。作为示例，“小于”不仅可表示最严格的数学意义上的“小于”，而且也可表示“小于或等于”。
如图1至图3所示，本发明实施例中提供一种LED灯具，举例来说，其可以为悬挂安装的线性照明灯具，或固定安装至天花板或吊顶的灯具。该LED灯具包括：支承单元1及光电模组2。其中，光电模组2以可替换(可拆卸)的方式连接至支承单元1，以使得可对LED灯具替换光电模组2。如果光电模组2损坏，则可仅替换光电模组2部分，相比替换整灯， 可降低替换成本。光电模组2也可采用不可拆卸的方式连接至支承单元1，即光电模组2固定于支承单元1后，其无法进行轻易的拆卸。
一些实施例中，光电模组2可配置为可与支承单元1快速安装，安装后，光电模组2与支承单元1便无法轻易的拆卸。以此，在包装运输时，光电模组2与支承单元1可分开包装和运输，节约包装和运输成本，而在售卖或使用时，光电模组2与支承单元1可快速安装。
支承单元1的正面设置反射表面11。反射表面11设置有多个。光电模组2的至少一部分光可射至多个反射表面11，并通过多个反射表面11而从LED灯具射出。
于一第一实施例中提供一种光电模组2，可应用于本发明实施例中的LED灯具。如图6至图8所示，所述光电模组2包括发光单元21、电源模组24、接线单元22及基座23，所述发光单元21配置于基座23上并且与发光单元21(第一发光单元和第二发光单元)电性连接，接线单元22配置于支承单元1的背面，以用于连接外部电源或市电，而电源模组24(图未示)则设置于基座23内部。本实施例中的发光单元21、电源模组24及基座23结合为一体，从而可整体进行拆装，实现光电模组2的模块化拆装。一些实施例中，接线单元22也可与上述的部件结合为一体。
支承单元1，其具有正面及背面，其中，设置发光单元21的一侧定义为正面，而相对的另一面则为背面，接线单元22配置于支承单元2的背面。本实施例中，光电模组2在LED灯具的厚度方向上不超过支承单元1限定的范围，也就是说，光电模组不会占用(大于)LED灯具(支承单元1)额外的厚度尺寸。
基座23内部形成容置空间，电源模组24配置于所述容置空间内。基座23具有侧壁231，至少部分发光单元21设置于侧壁231上。发光单元21包括第一发光组件211，第一发光组件211包括第一电路板2111及第一发光体2112，其中，第一发光体2112可为LED灯珠，或其他类型的LED发光单体。第一电路板2111贴设(本处的贴设可以是第一电路板2111直接贴设于侧壁231，也可是第一电路板2111通过中间介质而贴设于侧壁231，中间介质可以是胶，或其他可完成第一电路板2111与侧壁231连接效果的介质)于侧壁231上，并形成导热路径，以此，第一发光体2112工作时产生的热可通过第一电路板2111而热传导至基座23，并借由基座23进行散热.。本实施例中的基座23可采用金属材质或塑料材质。
第一发光组件211可设置多组，以向不同方向出光。举例来讲，基座23的截面形状为方形，即基座23具有4组侧壁231，每组侧壁231上对应设置第一发光组件211。又例如，基座23的截面形状为多边形，如八边形，即基座23具有8组侧壁231，每组侧壁231上对应设置第一发光组件211。
为减少灯具的眩光，或防止灯具局部发出的强光，灯具的第一发光体2112工作时产生的光通量的至少60％通过反射后，改变出光方向，并从灯具射出，以减小灯具侧向的发光，从而降低眩光。进一步的，灯具的第一发光体2112工作时产生的光通量的至少70％、80％或90％通过反射后，改变出光方向，并从灯具射出。
具体的，支承单元1的正面设置反射表面11，第一发光体2112工作时产生的光通量的至少25％直接经过反射表面11的反射后(该部分光通量无二次反射而从LED灯具射出)，从LED灯具射出，以减小第一发光体2112直射时产生眩光或局部强光。进一步的，第一发光体2112工作时产生的光通量的至少30％经过反射表面11的反射后，从LED灯具射出。更进一步的，第一发光体2112工作时产生的光通量的至少40％经过反射表面11的反射后，从LED灯具射出。反射表面11可配置为曲面，以提高出光的均匀性。另外，反射表面11亦可配置为平直表面，本发明不以此为限制。
第一发光体2112上可配置光束控制构件26，以改变第一发光体2112的出光路径，从而达到更好的出光效果。具体来讲，通过光束控制构件26的设置，以改变第一发光体2112的出光路径，从而降低第一发光体2112穿过光束控制构件26后从LED灯具直射出去的光线，由于第一发光体2112直射出去(不经反射表面11反射)的光线减少，可减小眩光。另外，其他实施例中的光电模组2也可不设置光束控制构件。
另外，基座23上设置遮光部232，遮光部232在LED灯具的出光方向上位于第一发光体2112的更外侧。在LED灯具的高度方向上，第一发光体2112和或光束控制构件26投影至遮光部232所在平面时，完全落入遮光部232所在平面的范围内。遮光部232的设置，可减少第一发光体2112往外直射的光，以此可降低眩光及避免局部强光。本实施例中，遮光部232靠近第一发光体2112的一侧设置反射面2321，以将第一发光体2112设置遮光部232的光线进行反射。具体的，反射面2321将第一发光体2112直射至反射面2321的光线反射至反射表面11进行二次反射，并从LED灯具射出。本实施例中，第一发光体2112工作时直射至反射面2321的光通量不超过第一发光体2112的总光通量的40％，以控制二次反射造成的光损。本实施例中的遮光部232直接于侧壁231上折弯形成。其他实施例中，遮光部232也可与侧壁231为分体式结构构成。于一些实施例中，通过光束控制构件26的设置，也可不需要设置所述遮光部232，并达到减少第一发光体2112往外直射的光。
第一发光体2112工作时射出的光经一次反射后(仅经过反射表面11或反射面2321后直接射出)而从LED灯具射出的光通量大于经二次或二次以上反射后而从LED灯具射出的光通量。通过控制二次反射的光通量，可降低反射时造成的光损，提高出光效率。本实施例中， 第一发光体2112的出光效率可达到65％以上。进一步的，第一发光体2112的出光效率可达到65％以上。此处的出光效率指的是第一发光体2112产生的光通量中从LED灯具射出的光通量与第一发光体2112产生的光通量之间的比值。
LED灯具还可进一步包括第二发光组件212，第二发光组件212包括第二电路板2121和第二发光体2122，其中，第一发光体2112可为LED灯珠。第二发光组件212设置于基座23内部。本实施例中，电源模组24包括若干电子元件241，若干电子元件241中的至少一部分设置于第二电路板2121上，以此，可共用同一电路板，简化结构。其他实施例中，也可不设置第二发光组件212。
第二发光体2122工作时产生的光全部通过光扩散后，从LED灯具射出，从而提高出光的均匀性。具体的，基座23在第二发光体2122的出光方向上设置光扩散部27(当不设置第二发光体2122时，光扩散部27可用不透光的材质替代，以形成光电模组2端部的外端面)，以对第二发光体2122工作时产生的光进行光扩散。扩散部27的边缘可覆盖于遮光部232处，以防止遮光部232外露。进一步的，在LED灯具的高度方向上，遮光部232投影至光扩散部27所在平面时，完全位于光扩散部27所在平面。
光扩散部27可采用乳白色PC罩，以其自身材料属性而具有光扩散功能。其他实施例中，光扩散部27可采用透明材质，如玻璃或透明的塑料，并在其表面设置扩散层，以使其具有光扩散功能。
光扩散部27覆盖支承单元1的正面的面积占支承单元1正面中的面积不超过20％。此处的支承单元1的正面的面积指的是垂直于光扩散部27的方向上的投影面积。具体的，支承单元1的正面的面积为支承单元1的长度乘以宽度。而光扩散部27覆盖支承单元1的正面的面积为光扩散部27投影至支承单元1所占用的面积，实际上，该面积为支承单元1的长度乘以宽度。进一步的，光扩散部27覆盖支承单元1的正面的面积占支承单元1正面中的面积不超过15％。更进一步的，光扩散部27覆盖支承单元1的正面的面积占支承单元1正面中的面积不超过15％，且大于7％。光扩散部27面积的控制，可减小材料成本，另外，基座23的体积可减小，从而可增加第一发光体2112与反射表面11之间的距离，以使得第一发光体2112工作时产生的光线更分散的设置反射表面11，以使出光更加均匀。
如图1，图6至图8所示，LED灯具的正面包括第一区域1001和第二区域1002。示例性的，第一区域1001可为反射表面11所在的区域，第二区域1002可为光扩散部27所在的区域。为达到LED灯具出光的均匀性，需要减小第一区域1001与第二区域1002的表面照度的差值。本实施例中，第一区域1001的表面照度配置为与第二区域1002的表面照度的比值 为0.1～0.5:1。进一步的，第一区域1001的表面照度配置为与第二区域1002的表面照度的比值为0.13～0.3:1。
光电模组2通过一安装单元3而可拆卸的连接至支承单元1。安装单元3包括第一构件31及第二构件32，第一构件31设置于光电模组2上，而第二构件32设置于支承单元1上，且第一构件31与第二构件32以可拆装的方式实现连接，以使光电模组2与支承单元1实现可拆卸连接。
如图4，图9和图10所示，第一构件31包括弹性本体311及臂部312，臂部312与弹性本体311连接，弹性本体311设置于基座23上。弹性本体311可为弹簧，以其扭转而具有弹性势能。第二构件32包括设于支承单元1上的孔洞103，臂部312穿过孔洞103，并以弹性本体311的弹性势能而抵于支承单元1的背面，以通过臂部312而支撑光电模组2。安装单元3还可以是现有技术中卡扣结构、插接结构等实现连接，此处不再赘述。
如图4，图9和图10所示，接线单元22包括止挡部221及弹性臂222。支承单元1上设置有通孔104，接线单元22的止挡部221抵于通孔104边缘的支承单元1的壁的一侧表面上，而弹性臂222则抵于通孔104边缘的支承单元1的壁的另一侧表面上，以此将支承单元1的壁夹持住，实现将接线单元22固定在支承单元1上。
参见图3、图11至图14，第一发光体2112点亮时产生的光线通过光束控制构件26而射至反射表面11。反射表面11为弧面，因此，光线投射至反射表面11的不同位置时，LED灯具的出光的效果会呈现较大的差异。因此，需保证光束控制构件26和第一发光体2112的装配时的位置精度，及光束控制构件26与反射表面11的位置精度，以防止过大的装配误差而影响出光。
为确保光束控制构件26与第一发光体2112的装配精度，光束控制构件26上设置一安装区域，第一发光体2112设于该安装区域内。安装区域限定了第一发光体2112与光束控制构件26的相对位置，以保证两者的装配精度。第一发光体2112设于安装区域后，第一发光体2112在任意方向上相对光束控制构件26位移距离控制在小于0.25mm或0.2mm(可以理解为：第一发光体2112设于该安装区域内后，在平行于第一发光体2112出光表面方向的位移量)。一些实施例中，第一发光体2112设于安装区域后，第一发光体2112在任意方向上相对光束控制构件26位移距离控制在大于0.05mm或0.1mm，以此，可防止第一发光体2112点亮或熄灭时发生的冷热变化，使光束控制构件26热胀冷缩而对第一发光体2112产生应力(产生应力时，可能影响两者的位置关系，或挤压并损坏光束控制构件26表面)，另外，也可防止光束控制构件26或第一发光体2112的制造误差，而影响两者的装配，如光束控制构件26的 安装区域偏小时，可能影响第一发光体2112的装入。一些实施例中，安装区域处可设置限位部，以限定第一发光体2112的位移距离。参见图13至图15，一些实施例中，光束控制构件26上可设置一孔洞2601，孔洞2601限定了安装区域，也就是说，第一发光体2112受孔洞内壁(内壁处形成前述的限位部)的限定，而仅能在一定范围内产生相对的位移(如位移范围不超过0.25mm)。如图16所示，一些实施例中，光束控制构件26可以为单个的个体，并与第一发光体2112一一对应配置。光束控制构件26也可以整合于一支架263上，从而形成一光束控制构件模组。如图12所示，一些实施例中，光束控制构件26与支架263为一体式结构构成。一些实施例中，光束控制构件26与支架263为分体式结构构成，光束控制构件26安装于支架263上(图未示)。
光通过两种介质时，反射率P的计算方式为：P＝[(n 2-n 1)/(n 2+n 1)] 2，其中，n 1为第一种介质的折射率，而n 2为第二种介质的折射率。两种介质的折射率越接近，则反射率越低，光输出效率则越高。如图13和图14所示，第一发光体2112的表面可设置第一介质(即封装胶21121)，第一发光体2112在其出光方向上与光束控制构件26之间具有了第二介质2602。也就是说，第一发光体2112点亮时，光线依次通过第一介质、第二介质2602及光束控制构件26。为提升出光效率，第二介质2602分别与第一介质及光束控制构件26的折射率的差值的绝对值小于0.15。进一步的，第二介质2602分别与第一介质及光束控制构件26的折射率的差值的绝对值小于0.1。另一角度来讲，第一介质与第二介质2602的折射率的比值为1:0.9～1.1。进一步的，第一介质与第二介质2602的折射率的比值为1：0.95～1.05。更进一步的，第一介质与第二介质2602采用相同的材质，也就是说，理论上，两者的折射率相同。第二介质2602与光束控制构件26的折射率的比值为1:0.9～1.1。进一步的，第二介质2602与光束控制构件26的折射率的比值为1：0.95～1.05。通过上述的限定，第一发光体2112在光束控制构件26的出光效率大于97％(此处的出光效率为光束控制构件26处射出的光通量与第一发光体2112点亮时产生的光通量的比值)。进一步的，第一发光体2112在光束控制构件26的出光效率大于98％。更进一步的，第一发光体2112在光束控制构件26的出光效率大于98.5％。
如图13和图14所示，光束控制构件26以孔洞2601的形式形成所述安装区域。第一发光体2112设于孔洞2601时，第一发光体2112的至少正面(出光面)与光束控制构件26之间设置填充层(即前述的第二介质2602)，通过填充层的设置，以排除第一发光体2112在出光方向上与光束控制构件26之间的间隙内的空气，以此可减少因反射而造成的光损。当第一发光体2112为LED灯珠时，填充层材质可采用同LED灯珠的封装胶的材质，使两者的折射 率相同，以此可减少光损。填充层也可采用硅胶材质。
如图15所示，填充层与第一发光体2112的正面(出光一侧的端面)的接触面积大于第一发光体2112的横截面积(该截面平行于出光一侧的端面)，以此，可增加填充层与第一发光体2112的结合强度。第一发光体2112的横截面积指的是第一发光体2112的长度乘以宽度的值。如图15所示，第一发光体2112的出光面呈内凹或外凸状，以此使得填充层与第一发光体2112的正面(出光一侧的端面)的接触面积大于第一发光体2112的横截面积。第一发光体2112的出光面可以为粗糙面(图未示)，以此使得填充层与第一发光体2112的正面(出光一侧的端面)的接触面积大于第一发光体2112的横截面积。
如图13和图14所示，填充层至少覆盖第一反光体2112的部分侧面，以进一步增加填充层与第一发光体2112的结合强度，并且，可进一步限制或减小第一发光体2112相对光束控制构件26的位移距离。
一实施例中，可以采用以下的方式完成光束控制构件26的安装：先将第一发光体2112通过焊接的方式安装至第一电路板2111；将光束控制构件26安装至第一发光体2112上。这种安装方式可能存在以下问题：第一发光体2112通过焊锡安装至第一电路板2111时，第一发光体2112的位置精度相对较差，此时，光束控制构件26在采用前述的配合精度时，只能单颗的进行安装，并且安装完成后，光束控制构件26在第一电路板2111上的位置精度较差，光束控制构件26与反射表面11的位置的一致性较差，影响出光。
如图12至图14及图17所示，一些实施例中，采用以下方式进行光束控制构件26的安装：
配置光束控制构件模组(即多个光束控制构件26整合于一支架263上，形成一体式结构)；
将第一发光体2112放置于光束控制构件26的孔洞2601处；
配置第一电路板2111，并将第一电路板2111放置于对应第一发光体2112处；
完成第一电路板2111与第一发光体2112的连接。
其中，第一电路板2111上设置焊锡，第一电路板2111通过焊锡与第一发光体2112完成焊接。
上述的安装方式，第一发光体2112至少部分放入孔洞2601后，第一发光体2112与光束控制构件26之间的位置即被相对固定。因此，第一发光体2112与第一电路板2111焊接时，第一发光体2112不会因为焊锡的流动性而发生位置的变化。如此一来，第一发光体2112与光束控制构件26之间，光束控制构件26与相邻光束控制构件26之间，光束控制构件26与反射表面11之间均可保证位置精度，保证LED灯具的出光效果。
一些实施例中，通过加热第一电路板2111(此处的第一电路板2111采用铝基板)，可熔化焊锡，从而使焊锡与第一电路板2111完成连接。一些实施例中，配置一加热台10，并通过加热台10加热第一电路板2111。一些实施例中，还可通过电磁加热等方式加热第一电路板2111。加热台10本身为现有技术，此处不再赘述。
加热第一电路板2111时，需防止熔化光束控制构件(光束控制构件采用PC材质，熔点低于锡)。因此，一些实施例中，光束控制构件的支架263与第一电路板2111保持间距。一些实施例中，配置一主动式散热单元20，以对光束控制构件进行散热。例如散热单元20可以是风扇。
一些实施例中，可通过定位单元将第一电路板2111与支架263的位置进行定位。例如，在支架263上设置定位柱，而在第一电路板2111上相应的设置定位孔。
光电模组2的基座23的截面形状可设计为多边行。如图18至图24所示，显示LED灯具的基座23的截面形状为八边形，即基座23具有8组侧壁231，每组侧壁231上对应设置第一发光组件211。其中一第一发光组件211的第一发光体2112的数量与相邻的第一发光组件211的第一发光体2112的数量相同或不同。
支承单元1的反射表面11包括多个反射面111(如四个反射面111)及用于连接相邻两个反射面111之间的过渡面112。第一发光组件211中的一部分对应于反射面111，而另一部分对应于过渡面112，以使过渡面112处不易形成暗区。
第一发光体2112包括第一发光单元。光束控制构件26包括第一透镜/第一光束控制构件261和第二透镜/第二光束控制构件262，其中，第一透镜261设置于对应于反射面111的第一发光组件211的第一发光体2112(第一发光单元)上，而第二透镜262设置于对应于过渡面112的第一发光组件211的第一发光体2112上。当基座23的截面形状为四边形时，即基座23具有4组侧壁231时，第一发光组件211的第一发光体2112对应于反射面111，此时可不设置第二透镜262。
第一透镜/第一光束控制构件261配置在第一发光单元(第一发光体2112)的主要出光面上。而遮光部232则设置在基座23的一端部却位于第一发光单元的一侧。反射表面11可包括第一反射面(对应于第一光学单元)及第二反射面(对应于第二光学单元)，第一发光单元(第一发光体2112)所发出的光经由该第一光束控制构件161所调节使部分该第一发光单元(第一发光体2112)所发出的光直接投射至该第一反射面，且部分该第一发光单元(第一发光体2112)所发出的光经由该遮光部23反射后在投射至该第一反射面。
如图18至图20所示，一些实施例中的第一透镜261呈条状，其包括第一底面2611，第 一底面2611凹陷并向第一底面2611开口形成一第一凹部2612，第一凹部2612的内表面作为接收从第一发光体2112发出的光的入射表面2613。第一发光体2112可部分或全部容置于第一凹腔2612内。第一透镜261具有出射表面2614，出射表面2614控制来自入射表面2613的入射光的出光，并将光发射至第一透镜261外部。第一发光体2112可与出射表面2614保持间距。一些实施例中的一组第一透镜261对应的与多个第一发光体2112配合，以控制多个第一发光体2112的出光。
一些实施例中，在第一透镜261的宽度的截面上，第一发光体2112的光轴L与第一发光体2112的发光面的焦点O作为参考点。入射表面2613处是一曲线，该曲线可以以光轴L而对称或不对称分布。所述入射表面2613上的任意点和参考点O的连线与光轴L形成的角度a增大时，入射表面2613上的任意点与参考点O之间的距离增大。假设光线从参考点O射出，则其设置入射表面2613，随着角度a的增大，其入射角度相应增加，折射角度也相应增加，可起到聚光的作用。此处所指的光轴L是指来自第一发光体2112的三维射出光束的中心的光线。一些实施例中，入射表面2613于光轴L一侧(第一出射面26141同侧)的点与参考点O的距离大于入射表面2613于光轴L另一侧(第二出射面26141同侧)的对应点与参考点O的距离，可使光轴L对应的两侧的入射表面2613处具有不同的折射角度，从而可达到控制出光方向。本处的对应点指的是这两点与参考点O的连线与光轴L夹角相同。
出射表面2614包括第一出射面26141及第二出射面26142，第一出射面26141可配置为外凸的曲面(聚光曲面)，而第二出射面26142可配置为内凹的曲面(扩散曲面)。第一出射面26141和第二出射面26142的连接处具有拐点，该拐点处为平滑过渡。第一出射面26141起到聚光作用，而第二出射面26142起到光扩散作用。于第一出射面26141射出的光通量大于于第二出射面26142射出的光通量。反射面111在往外侧的方向与第一透镜261的距离逐渐递增，第二出射面26142对应于反射面111相对的内侧区域(反射面111与第一透镜261的相对距离较近)，而第一出射面26141对应于反射面111相对的外侧区域(反射面111与第一透镜261的相对距离较远)，因此，第二出射面26142起光扩散作用时，可防止反射面111的相对的内侧区域的照度过大，而第一出射面26141起聚光作用，并且起到重定向出光的作用，一方面可防止光线从发射面111的边缘直接射出而增加眩光，另一方面，通过聚光，可提升反射面111的相对外侧区域的表面照度。本实施例中，大致可将反射面111的中线作为内侧区域和外侧区域的分界，内侧区域的表面的平均照度与外侧区域的表面的平均照度的比值限定为1：0.2～1，以此满足内侧区域表面和外侧区域表面的照度均匀性，以使出光更加均匀。
第一出射面26141可对应于第一反射面的一第一区域，第二出射面26142对应于该第一反射面的一第二区域，该第一区域相对于该第一光束控制构件261的距离大于该第二区域相对于该第一光束控制构件261的距离，其中该第一区域的表面的平均照度与该第二区域的表面的平均照度比值限定为1：0.2～1。
第一出射面26141至光轴L的一侧延伸至另一侧。而第二出射面26142仅位于光轴L的其中一侧。
如图25所示，显示一方向上(第一透镜261宽度截面)第一发光体射出的光线通过第一透镜时的光型图。光轴L于第一透镜261宽度方向上的一侧的光通量大于另一侧的光通量。进一步的，光轴L于第一透镜261宽度方向上的一侧的光通量与另一侧的光通量的比值大于1.5、2或2.5。
如图18，图21至图24所示，第二透镜262(第二光束控制构件)可以设置为与第一发光体2112(第二发光单元)一一对应配置，也可设置为一组第二透镜262与多组第一发光体2112配合。第一发光体2112可包括对应于第一光束控制构件261的第一发光单元和对应于第二光束控制构件262的第二发光单元。第二光束控制构件262配置于第二发光单元的主要出光面上，遮光部232设置在基座23的一端且位于第二发光单元的一侧。
以第二透镜262与第一发光体2112(第二发光单元)一一对应配置为例进行说明。第二透镜262包括第二底面2621，第二底面2621凹陷并向第二底面2621开口形成一第二凹部2622，第二凹部2622的内表面作为接收从第一发光体2112发出的光的入射表面2623。第一发光体2112可部分或全部容置于第二凹腔2622(孔洞)内。第一发光体2112可与入射表面2623保持间距。
第二透镜262具有出射表面2624，出射表面2624控制来自入射表面2623的入射光的出光，并将光线射至第二透镜262的外部。出射表面2624为曲面状。
第二透镜262在一第一方向Y(第一方向Y为第二透镜262的长度方向，该长度方向垂直或大致垂直于第一灯板2111的延伸方向)的截面上，第一发光体2112的光轴L与第一发光体2112的发光面的焦点O作为参考点。入射表面2623处包括一曲线，该曲线相对第一发光体2112为内凹状，该曲线可以以光轴L对称或不对称设置。所述入射表面2613上的任意点和参考点O的连线与光轴L形成的角度b增大时，入射表面2613上的任意点与参考点O之间的距离增大，以此可控制光分布。本实施例中所指的光轴L是指来自第一发光体2112的三维射出光束的中心的光线。
出射表面2624包括第一出射面26241和第二出射面26242。第二透镜262在一第一方向 Y的截面上，第一出射面26241显示一外凸的曲线，而第二出射面26242显示一内凹的曲线。换句话讲，该第一出射面26241为外凸曲面(扩散曲面)，该第二出射面26242为内凹曲面(聚光曲面)，第一出射面26241和第二出射面26242的连接处具有拐点，该拐点处平滑过渡。第一出射面26241起到扩散作用，而第二出射面26142起到聚光作用。于第一出射面26241射出的光通量大于于第二出射面26242射出的光通量。过渡面112在往外侧的方向与第二透镜262的距离逐渐递增，第二出射面26242对应于过渡面112相对的内侧区域(过渡面112与第二透镜262的相对距离较近)，而第一出射面26241对应于过渡面112相对的外侧区域(过渡面112与第二透镜262的相对距离较远)，因此，第二出射面26242起光扩散作用时，可防止过渡面112的相对的内侧区域的照度过大，而第一出射面26241起聚光作用，并且起到重定向出光的作用，一方面可防止光线从过渡面112的边缘直接射出而增加眩光，另一方面，通过聚光，可提升过渡面112的相对外侧区域的表面照度。一些实施例中，大致过渡面112的中线作为内侧区域和外侧区域的分界，内侧区域的表面的平均照度与外侧区域的表面的平均照度的比值限定为1：0.2～1，以此满足内侧区域表面和外侧区域表面的照度均匀性，以使出光更加均匀。
第一出射面26241对应于该第二反射面的一第三区域，该第二出射面26242对应于该第二反射面的一第四区域，该第三区域相对于该第二光束控制构件262的距离大于该第四区域相对于该第二光束控制构件262的距离，其中该第三区域的表面的平均照度与该第四区域的表面的平均照度比值限定为1：0.2～1。
第一出射面26241至光轴L的一侧延伸至另一侧。而第二出射面26242仅位于光轴L的其中一侧。
第二透镜262在一第二方向X(第二方向X为第二透镜262的宽度方向，该宽度方向平行或大致平行于第一灯板2111的延伸方向)的截面上，第一发光体2112的光轴L与第一发光体2112的发光面的焦点O作为参考点。入射表面2623处包括一曲线，该曲线相对第一发光体2112为内凹状，该曲线可以以光轴L对称或不对称设置。所述入射表面2613上的任意点和参考点O的连线与光轴L形成的角度c增大时，入射表面2613上的任意点与参考点O之间的距离增大，以此可控制光分布。本实施例中所指的光轴L是指来自第一发光体2112的三维射出光束的中心的光线。
一些实施例中，第二透镜262在一第二方向X的截面上，出射表面2624显示一外凸的曲线。一些实施例中，第二透镜262在一第二方向X的截面上，出射表面2624仅显示一外凸的曲线(未包含内凹的曲线)。在第二方向X上，第二透镜262配置为起到聚光作用，以 使对应于过渡面112的第一发光体2112产生的光线尽可能集中于过渡面112处，以防止过多的光线射至发射面111，从而使得反射面111局部的照度增强，从而影响反射表面11整体的照度均匀性。
如图26所示，显示第一方向Y和第二方向X上的第一发光体射出的光线通过第二透镜时的光型图。光轴L于第一方向Y的一侧的光通量大于另一侧的光通量。进一步的，光轴L于第一透镜261宽度方向上的一侧的光通量与另一侧的光通量的比值大于1.5、2或2.5。第二方向X上，第二透镜262主要起聚光作用。
根据本发明的实施例，提供了一种用于LED灯具的光电模组。参考图27和图28，其中分别示出了根据本发明的实施例的光电模组100的立体图和俯视图。该光电模组100包括在各边上交错布置的多个条形透镜102(可同前述实施例中的第一透镜261或大致同前述实施例中的第一透镜261)和多个颗粒透镜组104。每个颗粒透镜组104包括一个或多个颗粒透镜106(可同前述实施例中的第二透镜262或大致同前述实施例中的第二透镜262)。图27中的各个条形透镜102和各个颗粒透镜组104被安装在一个底座上，但可以理解的是，它们也可以以其它方式被组装在一起。另外，虽然在图27和图28中示出的光电模组100的截面形状为八边形，但这仅出于说明性目的而不意味着限制本发明的范围，光电模组100可以是任意的多边形形状(例如，四边形或十二边形形状)。
参考图29，其中示出了单个条形透镜102从长条形方向观察的光路示意图。该“长条形方向”如图27中所示，即沿着各个条形透镜102的长条形的方向。如图所示，每个条形透镜102包括条形透镜入射面和条形透镜出射面，光线从条形透镜入射面进入并从条形透镜出射面射出。
图30进一步示出了单个条形透镜102的六面视图。其中在左视图和右视图中示出了沿着条形透镜102的长条形方向观察到的条形透镜入射面曲线202和条形透镜出射面曲线204。入射面曲线202决定条形透镜入射面的形状，出射面曲线204决定条形透镜出射面的形状。条形透镜入射面用于使入射光聚集。条形透镜102的出射面曲线204可以以第一多项式表示。
参考图31，其中示出了单个颗粒透镜106的立体示意图。与条形透镜102相同，颗粒透镜106也包括颗粒透镜入射面和颗粒透镜出射面，该颗粒透镜出射面为自由曲面。如图31所示，对于该颗粒透镜出射面，因为需要在子午方向和弧矢方向两个方向上均控制光线，所以对于上述自由曲面分别设计从子午方向观察的子午面曲线组和从弧矢方向观察的弧矢面曲线组，子午方向和弧矢方向如图中所示。其中子午面为轴外物点的主光线与光学系统主轴所构成的平面，而弧矢面为过轴外物点的主光线并与子午面垂直的平面。
参考图32，其中进一步示出了单个颗粒透镜106的六面视图。其中左视图和右视图示出了从子午方向观察的子午面曲线组，该子午面曲线组包括第一曲线302和可以以第二多项式表示的第二曲线304。在仰视图和俯视图中，示出了从弧矢方向观察的弧矢面曲线组，该弧矢面曲线组包括可以以第三多项式表示的第三曲线306和可以以第四多项式表示的第四曲线308。
上述光电模组100采用由条形透镜和颗粒透镜组合得到的全新多边形透镜结构，这种结构在任何灯具中都没有出现过。在实际应用中，可以调节条形透镜102和颗粒透镜106的各个入射面和出射面所对应的曲线，以满足灯具的各种需求，比如，使经过该多边形透镜装置的光线非常均匀地到达所期望的范围。
作为一个示例，当在比如Troffer灯中使用上述光电模组100，希望发光体的光线经过条形透镜102的入射面和出射面后尽可能都能均匀地到达底板。本领域技术人员可以理解，由于光损和工艺误差等原因，发光体的光线如果实际能做到大部分到达底板，这已经是非常理想的了。这里的“大部分”可以比如为大约至少80％、85％、90％或95％。由此，只要在发光体的光线经过条形透镜102的入射面和出射面后至少80％、85％、90％或95％能均匀地到达底板这一条件下进行光学模拟，便可以得到条形透镜入射面曲线202和条形透镜出射面曲线204。
通过上述光学模拟，已经可以在计算机中得到条形透镜出射面曲线204的三维表示。进一步地，可以通过软件进行拟合(例如，多项式拟合、最小二乘法等)来得到该曲线的具体表达式。
在一个示例中，可对得到的条形透镜出射面曲线204进行多项式拟合，将条形透镜出射面曲线204所对应的第一多项式设为：p10+p11x1+p12x12+p13x13+p14x14+p15x15+p16x16，其中x1的范围设为(-9,10.8)，则通过软件拟合可以得到如下参数信息：
系数(95％置信度范围):
p16＝-6.824e-06(-6.955e-06,-6.694e-06)
p15＝4.514e-05(4.427e-05,4.602e-05)
p14＝0.0005846(0.0005671,0.0006021)
p13＝0.00104(0.0009495,0.00113)
p12＝-0.06973(-0.07038,-0.06908)
p11＝-0.3531(-0.3553,-0.351)
p10＝10.08(10.07,10.08)
Goodness of fit:
SSE:10.56
R-square:0.9991
Adjusted R-square:0.9991
RMSE:0.06448
其中，求得p16至p10，便得到了第一多项式的具体表达式。上述SSE为和方差，是拟合结果和原始数据对应点的误差的平方和，越接近于0则说明拟合效果越好；R-square为相关系数，是评价两个变量线性相关度的指标，用于反映拟合结果和原始数据的线性相关度，越接近1则说明拟合效果越好；Adjusted R-square为校正决定系数，用于抵消样本数量对R-Square的影响，同样用于反映拟合结果和原始数据的线性相关度，越接近1则说明拟合效果越好；RMSE为均方误差，是SSE的均值，同样越接近于0则说明拟合效果越好。
可以理解的是，上述得到的第一多项式p10+p11x1+p12x12+p13x13+p14x14+p15x15+p16x16并不是唯一的，如果将其设为p10’+p11’x1+p12’x12+p13’x13+p14’x14+p15’x15+p16’x16+p17’x17，并且x1的范围同样设为(-9,10.8)，则通过软件拟合可以得到系数p17’至p10’。由此得到的多项式p10’+p11’x1+p12’x12+p13’x13+p14’x14+p15’x15+p16’x16+p17’x17仍然是与上述条形透镜出射面曲线204近似的多项式，但精度比上述p10+p11x1+p12x12+p13x13+p14x14+p15x15+p16x16更高，拟合结果也更加精确。当然也可以将上述多项式设为p10”+p11”x1+p12”x12+p13”x13+p14”x14+p15”x15等，只要其拟合精度符合期望值即可，此处不再赘述。此外，x1的范围也并不仅限于以上的(-9,10.8)，也可以根据实际情况选择其他的范围。
为配合上述得到的条形透镜出射面曲线204，可以将条形透镜入射面曲线202设置为圆弧。但可以理解的是，该条形透镜入射面曲线202也不一定完全是圆弧，只要能跟条形透镜出射面曲线204配合地使光线经过条形透镜102后能够大部分都均匀地到达底板即可。
作为一个示例，当在比如Troffer灯中使用上述光电模组100，希望发光体的光线经过颗粒透镜106的入射面和出射面后尽可能都能均匀地到达底板。如前面所论述地，实际由于光损和工艺误差等原因，希望发光体的光线大部分(例如，至少大约80％、85％或90％)都能到达底板。这样，只要在该希望的条件下进行光学模拟，便可以得到上述颗粒透镜106的第一曲线302、第二曲线304、第三曲线306和第四曲线308。
通过上述光学模拟，已经可以在计算机中得到第二曲线304、第三曲线306和第四曲线 308的三维表示。进一步地，可以通过软件进行拟合(例如，多项式拟合、最小二乘法等)来得到这些曲线的具体表达式。
在一个示例中，可对得到的第二曲线304、第三曲线306和第四曲线308分别进行多项式拟合。
可将第二曲线304所对应的第二多项式设为：p20+p21x2+p22x22+p23x23+p24x24+p25x25+p26x26，其中x2的范围设为(-10.5,10.8)，则通过软件拟合可以得到如下参数信息：
系数(95％置信度范围):
p26＝-5.617e-06(-5.735e-06,-5.5e-06)
p25＝2.927e-05(2.864e-05,2.989e-05)
p24＝0.0007757(0.0007567,0.0007947)
p23＝0.0002268(0.0001434,0.0003102)
p22＝-0.08104(-0.08185,-0.08022)
p21＝-0.4321(-0.4346,-0.4296)
p20＝11.85(11.84,11.86)
Goodness of fit:
SSE:23.2
R-square:0.9987
Adjusted R-square:0.9987
RMSE:0.09101
求得p26至p20，便得到了第二多项式的具体表达式。
可将第三曲线306所对应的第三多项式设为：p30+p31x3+p32x32+p33x33，其中x3的范围设为(-9.8,9.8)，则通过软件拟合可以得到如下参数信息：
系数(95％置信度范围):
p33＝-1.492e-06(-1.141e-05,8.424e-06)
p32＝-0.01418(-0.01423,-0.01413)
p31＝-7.288e-05(-0.0005684,0.0004227)
p30＝2.066(2.065,2.067)
Goodness of fit:
SSE:0.9086
R-square:0.9938
Adjusted R-square:0.9937
RMSE:0.02133
求得p33至p30，便得到了第三多项式的具体表达式。
可将第四曲线308所对应的第四多项式设为：p40+p41x4+p42x42+p43x43，其中x4的范围设为(-11.1,11.1)，则通过软件拟合可以得到如下参数信息：
系数(95％置信度范围):
p43＝-2.186e-06(-4.551e-05,4.114e-05)
p42＝-0.05628(-0.05653,-0.05603)
p41＝-0.0004819(-0.003433,0.002469)
p40＝8.2(8.189,8.211)
Goodness of fit:
SSE:59.35
R-square:0.9898
Adjusted R-square:0.9898
RMSE:0.1724
求得p43至p40，便得到了第四多项式的具体表达式。
同样，类似于上述条形透镜102，上述得到的颗粒透镜106的各个曲线所对应的表达式也不是唯一的，可以为该各个曲线分别设置比上述多项式项数更多或更少的多项式，并在对各个x2、x3、x4取相同或不同的范围后通过软件拟合得到该项数更多或更少的多项式，只要由此得到的多项式的拟合精度符合期望值即可，此处不再赘述。
为配合上述得到的颗粒透镜106的第二曲线304、第三曲线306和第四曲线308，可以将颗粒透镜106的第一曲线302设置为圆弧。但可以理解的是，该第一曲线302也不一定完全是圆弧，只要能跟上述第二曲线304、第三曲线306和第四曲线308配合地使光线经过颗粒透镜106后能够大部分都均匀地到达底板即可。
需要特别说明的是，虽然在拟合上述各个曲线时采用了多项式拟合的方式，但本领域技术人员可以理解，也可以通过其它方式来拟合得到上述各个曲线，只要拟合精度符合所期望的要求。
可选地，可以为颗粒透镜106设置一个槽(未图示)，并设计该槽包含所述颗粒透镜入射面，用于聚焦接收到的光线。所述槽还可以起到容纳发光体(全部或部分)的作用。当然， 所述槽也可以不容纳发光体。
可选地，光电模组100可以设计为八边形结构，其中在八条边上交错地设置四个条形透镜102和四个颗粒透镜组104。进行这样的设计，因为其在美观和光照效果的兼顾上做到了最优。但这并不意味着，本发明的多边形透镜装置必须采用八边形，如前面所述地，其也可以采用其它合适的形状。
可选地，每个颗粒透镜组104可包括两个颗粒透镜106。但可以理解，也可以设计颗粒透镜组104具有其它数目的颗粒透镜106，比如三个颗粒透镜。
至此描述了根据本发明的用于灯具的多边形透镜装置，其在任何灯具中都没有出现过。这种组合使用条形透镜和颗粒透镜的多边形透镜结构可以根据需要，通过调节各个透镜的入射面和出射面所对应的曲线，来满足对光线方向的各种需求。特别地，当被用于灯具中时，本发明的多边形透镜装置可以使发光体发出的光线大部分都非常均匀地到达灯具的底板，从而使底板上的光照均匀，且可以有效解决眩光问题。
根据本发明的实施例，还提供一种灯具。
参考图33，其中示出了根据本发明的实施例的灯具400。该灯具400包括光电模组402和底板404。
图34示出了灯具400在拆装后的示意图。如图33所示，光电模组402包括集成在一起的发光组件406和电源控制组件408。图35中的光电模组，为各个条形透镜410和颗粒透镜412对应设置一个或多个LED发光体，例如LED灯珠(LED发光体的设置位置在图中示出为在各个条形透镜410和颗粒透镜412的斜上方)。可以理解的是，因为该图35示出的是灯具400拆下后颠倒放置的视图，所以对于实际使用中的灯具400来说，LED发光体可以设置在各个条形透镜410和颗粒透镜412斜下方，如图34所示。底板404也兼做灯具400的灯罩，其对光电模组402起到支撑作用，同时底板404的尺寸被特别设计为适配于光电模组402，以接收光电模组402发出的大部分光线并将所接收到的光线绝大部分(该仅有的少量光损源自于底板本身对光的吸收、以及底板反射的光线不可避免地会有少量落回到光电模组上)都反射到照射面。上述灯具400因为采用了根据本发明的多边形透镜装置，因此可以将LED发光体(通常具有120°的光束角)发出的光(以例如大约90°的光束角)大部分都均匀地投射到底板404上。而底板404也根据该多边形透镜装置作了特别的适应性设计，以使其可以把接收到的光线绝大部分都反射到照射面。由此，灯具400发出的光大部分都通过底板404均匀反射到照射面，与传统LED灯相比更加均匀柔和，有效地解决了眩光问题，大大提升了空间光的舒适度。此外，上述灯具400的光电模组402集电源控制、发光组件、接线空间于一 体，这使得灯具外观简洁美观。
可选地，如图34所示，发光组件406可在电源控制组件408的顶部并相对于底板404倾斜地设置，从而使得发光组件406发出的光更容易射向底板404，而基本上不会从灯具漏出，从而进一步提高光效和降低眩光。
作为一个示例，每个颗粒透镜412可对应设置有一个LED发光体。
作为另一个示例，每个条形透镜410可对应设置有五个LED发光体。
可选地，底板404可由SPCC(即，符合按照日本工业标准(JIS)规定的“一般用冷轧碳钢薄板及钢带”的钢材)冷轧板一次性拉伸成型。由此在保证强度的同时使外观简约，而且与其他的钣金拼接方式相比，使用该方式制造的底板404成本更低。
以下将结合图36描述根据本发明的灯具的一个实例。如图36所示，在该实例中，灯具采用八边形的光电模组，在八条边上交错地设置四个条形透镜和四个颗粒透镜组，每个颗粒透镜组中设置两个颗粒透镜。其中每个条形透镜下方设置有五颗LED光珠，每个颗粒透镜下方设置有两颗LED光珠，这些LED光珠采用单排结构。
经测试，上述灯具实例的整灯光通量为4000流明，光效为74％，相比传统LED灯提升了光效。该灯具实例的UGR(统一眩光值)为21.33(对于商业建筑、影剧院建筑等的照明标准值规定UGR需低于22)，相比传统LED灯大大地降低了眩光。此外，该灯具实例的底板上的平均照度与最大照度的比值为1：1.2，能够提供均匀且柔和的光照。
于一第二实施例中提供一种光电模组4，可应用于本发明实施例中的LED灯具。参见图37到图42，所述光电模组4包括发光单元41、基座42和光学构件43。
基座42连接至支承单元1。基座42可包括一底板421及一座体422，底板421与座体422固定，并且底板421与座体422之间(即基座42内部)形成容置空间，容置空间内部可设置LED灯具的电源。发光单元41固定于座体422上。
座体422的一端敞口设置，以用于将电源从敞口处装入座体422内。座体422的敞口处的一端设置有第一连接壁4221，底板421上具有第二连接壁4211，第一连接壁4221与第二连接壁4211贴合并固定。第二连接壁4211的设置，可增加座体422与底板421的接触面积，从而使发光单元41工作时产生的热量通过座体422而快速的传导至底板421。当底板421贴合安装在支承单元1时，底板421与支承单元1形成热传导，便于将热量传导至支承单元1，并透过支承单元1上更大的散热面积而进行散热。
发光单元41包括第一发光单元411及第二发光单元412，第一发光单元411的出光方向与第二发光单元412的出光方向不同。具体的，座体422上具有第一安装面4222及若干围绕 第一安装面4222设置的第二安装面4223,。当LED灯具沿水平面安装设置时，第一安装面4222平行或大致平行于水平面，而第二安装面4223则与水平面呈一夹角，所述夹角为一锐角(其角度为45度至85度之间)。第一发光单元411安装至第一安装面4222，而第二发光单元412则一一对应的安装至第二安装面4223。
第二安装面4223可设置有8组，8组第二安装面4223围绕第一安装面4222而均布于座体422。一些实施例中，第二安装面4223的数量也可设置为4组、5组或6组。
第一发光单元411包括第一电路板4111及第一发光体4112，其中，第一发光体4112可为LED灯珠，或其他类型的LED发光单体。第一电路板4111至少部分贴设(本处的贴设可以是第一电路板4111直接贴设于第一安装面4222，也可是第一电路板4111通过中间介质而贴设于第一安装面4222，中间介质可以是胶，或其他可完成第一电路板4111与第一安装面4222连接效果的介质)第一安装面4222上，并形成导热路径，，以此，第一发光体4112工作时产生的热可通过第一电路板4111而热传导至座体422，并借由座体422进行散热.。
第一安装面4222的面积至少为第一电路板4111的底面的面积的10％，以保证第一电路板4111与第一安装面4222之间的热传导。第一安装面4222的面积不超过第一电路板4111的底面的面积的30％，以节省材料成本。
第二发光单元412包括第二电路板4121和第二发光体4122，其中，第二发光体4122可为LED灯珠，或其他类型的LED发光单体。第二电路板4121至少部分贴设(本处的贴设可以是第二电路板4121直接贴设于第二安装面4223，也可是第二电路板4121通过中间介质而贴设于第二安装面4223，中间介质可以是胶，或其他可完成第二电路板4121与第二安装面4223连接效果的介质)第二安装面4223上，并形成导热路径，，以此，第二发光体4122工作时产生的热可通过第二电路板4121而热传导至座体422，并借由座体422进行散热。
第一发光单元411与第二发光单元412的光效可相同或不同。如第二发光单元412的光效高于第一发光单元411，以使光电模组4的侧向具有更多的光通量，进而使更多光线通过支承单元1的反射而出光，从而避免局部的强光，提高出光的均匀性，并且可降低眩光。
光学构件43罩于基座42上，以对第一发光单元411和第二发光单元412工作时产生的光进行光学处理。光学构件43可采用塑料材质，如亚克力，以起到光扩散的作用，以使出光更加均匀。
光学构件43上设置有底壁431，光学构件43通过底壁431而与第一连接壁4221或第二连接壁4211连接，以实现光学构件43与基座42的固定，以使光电模组4形成一整体式结构。
应该理解，以上描述是为了进行图示说明而不是为了进行限制。通过阅读上述描述，在 所提供的示例之外的许多实施方式和许多应用对本领域技术人员来说都将是显而易见的。因此，本教导的范围不应该参照上述描述来确定，而是应该参照所附权利要求以及这些权利要求所拥有的等价物的全部范围来确定。出于全面之目的，所有文章和参考包括专利申请和公告的公开都通过参考结合在本文中。在前述权利要求中省略这里公开的主题的任何方面并不是为了放弃该主体内容，也不应该认为发明人没有将该主题考虑为所公开的发明主题的一部分。

Claims (10)

  1. 一种LED灯具，其特征在于，包括：
    一支承单元，至少包含复数个第一反射面；
    光电模组，其固定至所述支承单元，该光电模组包含一基座、一第一发光单元、一第一光束控制构件及一遮光部，其中该第一发光单元设置在该基座上，该第一光束控制构件配置在该第一发光单元的主要出光面上，该遮光部设置在该基座的一端部且位于第一发光单元的一侧；以及
    接线单元，其固定于所述支承单元上，该接线单元电性连接该第一发光单元，其中，该第一发光单元所发出的光经由该第一光束控制构件所调节使部分该第一发光单元所发出的光直接投射至该第一反射面且部分该第一发光单元所发出的光经由该遮光部反射后在投射至该第一反射面。
  2. 如权利要求1所述的LED灯具，其中该第一光束控制构件更包含至少一孔洞，该孔洞适于容置该第一发光单元。
  3. 如权利要求2所述的LED灯具，其中该第一光束控制构件更包含一第一出射面与一第二出射面，该第一出射面为外凸曲面，该第二出射面为内凹曲面，该第一出射面光射出的光通量大于该第二出射面光射出的光通量。
  4. 如权利要求2所述的LED灯具，其中该第一出射面为聚光曲面，该第二出射面为扩散曲面，该第一出射面光射出的光通量大于该第二出射面光射出的光通量。
  5. 如权利要求4所述的LED灯具，其中该第一出射面对应于该第一反射面的一第一区域，该第二出射面对应于该第一反射面的一第二区域，该第一区域相对于该第一光束控制构件的距离大于该第二区域相对于该第一光束控制构件的距离，其中该第一区域的表面的平均照度与该第二区域的表面的平均照度比值限定为1：0.2～1。
  6. 如权利要求5所述的LED灯具，其中该支承单元更包含复数个第二反射面，该光电模组更包含一第二发光单元及一第二光束控制构件，该第二发光单元设置在该基座上，该第二光束控制构件配置在该第二发光单元的主要出光面上，该遮光部设置在该基座的一端部且位于第二发光单元的一侧。
  7. 如权利要求6所述的LED灯具，其中该第二光束控制构件更包含至少一孔洞，该孔洞适于容置该第二发光单元。
  8. 如权利要求7所述的LED灯具，其中该第二光束控制构件更包含一第三出射面与一第四出射面，该第三出射面为外凸曲面，该第四出射面为内凹曲面，该第三出射面光射出 的光通量大于该第四出射面光射出的光通量。
  9. 如权利要求7所述的LED灯具，其中该第三出射面为聚光曲面，该第四出射面为扩散曲面，该第三出射面光射出的光通量大于该第四出射面光射出的光通量。
  10. 如权利要求9所述的LED灯具，其中该第三出射面对应于该第二反射面的一第三区域，该第四出射面对应于该第二反射面的一第四区域，该第三区域相对于该第二光束控制构件的距离大于该第四区域相对于该第二光束控制构件的距离，其中该第三区域的表面的平均照度与该第四区域的表面的平均照度比值限定为1：0.2～1。
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