WO2023035992A1 - 一种led照明设备 - Google Patents

一种led照明设备 Download PDF

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Publication number
WO2023035992A1
WO2023035992A1 PCT/CN2022/115343 CN2022115343W WO2023035992A1 WO 2023035992 A1 WO2023035992 A1 WO 2023035992A1 CN 2022115343 W CN2022115343 W CN 2022115343W WO 2023035992 A1 WO2023035992 A1 WO 2023035992A1
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WO
WIPO (PCT)
Prior art keywords
light
optical
led lighting
lighting device
led
Prior art date
Application number
PCT/CN2022/115343
Other languages
English (en)
French (fr)
Inventor
王名斌
张志超
张东梅
许吉锋
江涛
林宽
卫欢
赵恒�
荆泽成
Original Assignee
嘉兴山蒲照明电器有限公司
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Application filed by 嘉兴山蒲照明电器有限公司 filed Critical 嘉兴山蒲照明电器有限公司
Publication of WO2023035992A1 publication Critical patent/WO2023035992A1/zh

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    • 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
    • F21V11/00—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00
    • F21V11/06—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00 using crossed laminae or strips, e.g. grid-shaped louvers; using lattices or honeycombs
    • 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
    • F21V13/00—Producing particular characteristics or distribution of the light emitted by means of a combination of elements specified in two or more of main groups F21V1/00 - F21V11/00
    • F21V13/02—Combinations of only two kinds of elements
    • 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
    • F21V3/00—Globes; Bowls; Cover glasses
    • F21V3/02—Globes; Bowls; Cover glasses characterised by the shape
    • 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
    • F21V5/00—Refractors for light sources
    • 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
    • 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
    • F21V7/05—Optical design plane
    • 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
    • F21V7/06—Optical design with parabolic curvature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

Definitions

  • the invention belongs to the technical field of LED lighting devices, and in particular relates to LED lighting equipment.
  • LED lighting is widely used because of its advantages of energy saving and long life.
  • Common LED lamps in the prior art include flat panel lamps and grille lamps.
  • the flat panel lights in the prior art usually include a light bar, a bottom frame, a light guide plate and a diffusion plate.
  • the light bar is arranged on the side of the bottom frame to provide side light.
  • the board shoots out.
  • the flat panel lights in the prior art have the following disadvantages: after the light emitted by the light bar passes through the light guide plate and the diffuser plate, the light loss is relatively large, resulting in low light output efficiency of the flat panel light; the cost of the light guide plate is high, which is not conducive to the cost of the flat panel light Control, flat panel light glare control is relatively general.
  • the grid lamp in the prior art includes a bottom frame, a light source (the light source can be a light bar, a fluorescent tube or an LED tube) and a grid.
  • the light source is fixed on the bottom frame, and a grid is arranged on the light output side of the light source.
  • the grille lamp in the prior art has the following disadvantages: the way of setting the grille is not conducive to the height control of the grille lamp, which increases the cost of packaging and transportation; the cost of the grille is high, which is not conducive to the cost control of the whole lamp; the installation of the grille , the light loss is large, and dark areas are easily formed at the grille, which is not conducive to light emission.
  • An embodiment of the present invention provides an LED lighting device, which is characterized in that it includes:
  • the base has a bottom plate and a side wall, and a cavity is formed between the bottom plate and the side wall;
  • a light source which is arranged in the concave cavity of the base, the light source includes a circuit board and several LED arrays, the LED array includes LED lamp beads, and the LED lamp beads are fixed on the circuit board;
  • the optical component includes an optical unit, the optical unit includes a plurality of first optical components and a plurality of second optical components corresponding to the first optical components, and the LED array corresponds to the first optical components;
  • the second optical component includes one or more sets of optical walls, the optical walls are arranged around the first optical component;
  • A is a constant, and the range of A is 0.048 to 0.052; E is the meaning of the index; K is a constant, and the range of K is 9 to 12.
  • a is a constant, and its absolute number ranges from 1.35 to 1.45;
  • L is a constant, and the range of L is 18 to 22.
  • the light extraction efficiency of the LED lighting device described in the embodiment of the present invention is greater than 80%.
  • the embodiment of the present invention has only one thermal resistance layer in the direction of the optical axis of the LED lamp bead.
  • the first optical component and the second optical component are made of the same layered material.
  • the ratio of the light intensity of the two sets of light distribution curves at the same angle in any direction of the LED lighting device according to the embodiment of the present invention is between 0.8 and 1.2.
  • the ratio of the light intensity of the two sets of light distribution curves at the same angle in any direction of the LED lighting device according to the embodiment of the present invention is between 0.9 and 1.1.
  • the LED lighting equipment described in the embodiment of the present invention has a light distribution curve, and a coordinate system is established with the 0 point of the light distribution curve as the center. Within the range of 0 to 60 degrees, any point on the light distribution curve conforms to the following formula :
  • the beam angle of the light distribution curve described in the embodiment of the present invention is 100° to 110°.
  • An embodiment of the present invention provides an LED lighting device, which is characterized in that it includes:
  • a base having a bottom plate and side walls forming a cavity therebetween;
  • the light source is arranged in the concave cavity of the base, the light source includes a circuit board and several LED arrays, the LED array includes LED lamp beads, and the LED lamp beads are fixed on the circuit board.
  • An embodiment of the present invention provides an LED lighting device, which is characterized in that it includes:
  • the optical component is entirely covered on one side of the base in the light emitting direction of the LED lighting equipment.
  • the outstanding and beneficial technical effect of the present invention compared with the prior art is: at least a part of the light passing through the second optical member can be emitted from the adjacent second optical member, or part of the light passing through the second optical member At least a part, after being reflected, is emitted from the second optical component, so as to avoid forming a dark area at the second optical component, thereby improving the appearance of the LED lighting device when it is lit.
  • FIG. 1 is a schematic front view of an LED lighting device according to an embodiment of the present invention
  • Fig. 2 is an enlarged view of A place in Fig. 1;
  • FIG. 3 is a schematic cross-sectional view of an LED lighting device according to an embodiment of the present invention.
  • Fig. 4 is the enlarged view of place B in Fig. 3;
  • Fig. 5 is a three-dimensional schematic diagram of an LED lighting device according to an embodiment of the present invention.
  • Fig. 6 is a schematic diagram of removing the optical components in Fig. 1;
  • Figure 7 is an enlarged view at C in Figure 6;
  • Fig. 8 is a three-dimensional schematic diagram of an optical component
  • Fig. 9 is a three-dimensional schematic view of the base
  • Fig. 10 is a first three-dimensional structural schematic diagram of LED lighting equipment in an embodiment
  • Fig. 11 is a schematic diagram 2 of the three-dimensional structure of the LED lighting device in an embodiment
  • Fig. 12 is a schematic cross-sectional structure diagram of an LED lighting device in an embodiment
  • Figure 13 is an enlarged view at D in Figure 12;
  • Fig. 14 is an enlarged view at the E place in Fig. 12;
  • Fig. 15 is a schematic diagram of the three-dimensional structure of the LED lighting device in the embodiment without the optical components
  • Fig. 16 is a schematic perspective view of the three-dimensional structure of the optical component in an embodiment
  • Fig. 17 is a schematic cross-sectional structure diagram of an LED lighting device in an embodiment
  • Figure 18 is an enlarged view at F in Figure 17;
  • Figure 19 is a schematic diagram of the light output of the LED lamp bead
  • Fig. 20 is a schematic diagram of the light output of the LED array
  • Fig. 21 is a schematic perspective view of the three-dimensional structure of LED lighting equipment in an embodiment
  • Fig. 22 is a schematic cross-sectional structure diagram of an LED lighting device in an embodiment
  • Figure 23 is an enlarged view at G in Figure 22;
  • Fig. 24 is a partial cross-sectional schematic view of the installation structure
  • Figure 25 is an enlarged view at H in Figure 22;
  • Fig. 26 is a first structural schematic diagram of the rear view of the LED lighting device in some embodiments.
  • Fig. 27 is a second structural schematic diagram of the rear view of LED lighting equipment in some embodiments.
  • Fig. 28 is a third structural schematic diagram of the rear view of LED lighting equipment in some embodiments.
  • Fig. 29 is a schematic perspective view of the three-dimensional structure of LED lighting equipment in an embodiment
  • Figure 30 is an enlarged schematic view of the I place in Figure 29;
  • Fig. 31 is a schematic cross-sectional structure diagram of an LED lighting device in an embodiment
  • Fig. 32 is an enlarged schematic view at J in Fig. 31;
  • Fig. 33 is a schematic perspective view of the three-dimensional structure of LED lighting equipment in an embodiment
  • Fig. 34 is a schematic diagram of the front structure of LED lighting equipment in an embodiment
  • Fig. 35 is a first cross-sectional view of an LED lighting device in an embodiment
  • Figure 36 is an enlarged view at K in Figure 35;
  • Fig. 37 is a second cross-sectional view of the LED lighting device in an embodiment, which shows a cross-section in a different direction from that in Fig. 35;
  • Figure 38 is an enlarged view at the L place in Figure 37;
  • Fig. 39 is a partial cross-sectional structural schematic diagram of LED lighting equipment installed horizontally and emitting light downward in an embodiment
  • Fig. 40 is a partial cross-sectional structural schematic diagram of LED lighting equipment installed horizontally and emitting light downward in an embodiment
  • Fig. 41 is a partial cross-sectional structural schematic diagram of LED lighting equipment installed horizontally and emitting light downward in an embodiment
  • Fig. 42 is a partial cross-sectional structural schematic diagram of LED lighting equipment installed horizontally and emitting light downward in an embodiment
  • Fig. 43 is a partial cross-sectional structural schematic diagram of LED lighting equipment installed horizontally and emitting light downward in an embodiment
  • Fig. 44 is a light distribution curve of an LED lighting device in an embodiment
  • Fig. 45 is a schematic diagram of an LED lighting device in an embodiment
  • Fig. 46 is a three-dimensional schematic diagram of the LED lighting device in an embodiment, showing the front of the LED lighting device;
  • Fig. 47 is a second stereoscopic structural diagram of the LED lighting device in an embodiment, showing the back side of the LED lighting device;
  • Fig. 48 is a schematic cross-sectional structure diagram of an LED lighting device in an embodiment
  • Figure 49 is an enlarged view at M in Figure 48;
  • Fig. 50 is a schematic diagram of the three-dimensional structure of Fig. 46 with the optical components removed;
  • Fig. 51 is a schematic diagram of the three-dimensional structure of Fig. 46 without the light redirection unit;
  • Fig. 52 is a schematic diagram of the three-dimensional structure of Fig. 51 with the power supply box removed;
  • Fig. 53 is a schematic perspective view of the three-dimensional structure of the bottom plate in an embodiment
  • Fig. 54 is a schematic perspective view of a power supply in an embodiment
  • Figure 55 is a schematic diagram of cooperation between the power supply circuit board and the electronic components
  • Figure 56 is a rear view of Figure 55;
  • Fig. 57 is a schematic perspective view of the LED lighting device in some embodiments.
  • Fig. 58 is a schematic diagram of the three-dimensional structure of Fig. 57 without the second optical component;
  • Figure 59 is an enlarged view at N in Figure 58;
  • Fig. 60 is a schematic diagram of the three-dimensional structure of Fig. 57 with the optical components removed;
  • Fig. 61 is a first cross-sectional structural schematic diagram of LED lighting equipment in some embodiments.
  • Figure 62 is an enlarged view at P in Figure 61;
  • Fig. 63 is a second schematic cross-sectional structure diagram of LED lighting equipment in some embodiments.
  • Figure 64 is an enlarged view at the Q place in Figure 63;
  • Fig. 65 is a schematic perspective view of the LED lighting device in some embodiments.
  • Fig. 66 is a schematic diagram of the three-dimensional structure of Fig. 65 without the second optical component
  • Fig. 67 is a schematic cross-sectional structure diagram of an LED lighting device in some embodiments.
  • Figure 68 is an enlarged view at O in Figure 67;
  • Fig. 69 is a three-dimensional schematic diagram of LED lighting equipment in some embodiments.
  • Fig. 70 is a second stereoscopic structural diagram of LED lighting equipment in some embodiments.
  • Fig. 71 is a first schematic cross-sectional structure of LED lighting equipment in some embodiments.
  • Figure 72 is an enlarged view at P in Figure 71;
  • Figure 73 is an enlarged view at Q in Figure 71;
  • Fig. 74 is a second schematic cross-sectional structure diagram of LED lighting equipment in some embodiments.
  • FIG. 75 is an enlarged view at R in FIG. 74 .
  • an LED lighting device is provided in an embodiment of the present invention, and the LED lighting device includes: a base 1 , a light source 2 , an optical component 3 and a power source 4 .
  • the light source 2 is electrically connected to the power source 4 , the light source 2 is arranged on the base 1 , and the optical component 3 is arranged in the light emitting direction of the light source 2 .
  • the base 1 in this embodiment has a bottom plate 11 and a side wall 12 , and the side wall 12 is disposed on the outer edge of the bottom plate 11 to form a cavity 101 between the side wall 12 and the bottom plate 11 .
  • the light source 2 is disposed in the concave cavity 101 .
  • the base 1 can be made of metal, such as iron or stainless steel, to increase its heat dissipation performance.
  • the base 1 is formed as an integral structure, and the side wall 12 is formed by bending directly relative to the bottom plate 11 .
  • the base 1 is formed as a one-piece structure, which is directly formed by stamping or stretching, so that it has better structural strength.
  • the base 1 can also be made of plastic.
  • the light source 2 can be directly fixed on the bottom plate 11 of the base 1 .
  • the light source 2 includes an LED lamp bead 21 and a circuit board 22 , wherein the LED lamp bead 21 is fixed on the circuit board 22 , and the light source 2 is directly fixed to the bottom plate 11 of the base 1 through the circuit board 22 .
  • the circuit board 22 is directly fixed to the bottom plate 11 of the base 1 by bonding.
  • the light source 2 can be clamped on the bottom plate 11 of the base 1 through the circuit board 22 .
  • the light source 2 can be directly fixed to the bottom plate 11 of the base 2 by welding.
  • the light source 2 forms a heat conduction path with the bottom plate of the base 1, so that the heat generated by the LED lamp bead 21 can be quickly heat-conducted to the base 1, and dissipated through the base 1 to improve heat dissipation efficiency.
  • the LED lamp beads 21 on the circuit board 22 are arranged in two columns. Referring to FIG. 13 and FIG. 15 , in some embodiments, the LED lamp beads 21 on the circuit board 22 are arranged in one row.
  • a positioning unit 102 may be provided on the base 1 for positioning the light source 2 .
  • the positioning unit 102 includes a bar-shaped groove disposed on the bottom plate 11 , and at least part or all of the circuit board 22 of the light source 2 is accommodated in the groove, so that the position of the circuit board 22 is relatively fixed and configured as the bottom plate 11 .
  • punching and forming grooves on the bottom plate 11 is equivalent to providing reinforcing ribs on the bottom plate 11 , which can increase the structural strength of the bottom plate 11 against bending.
  • the thickness of the circuit board 22 is approximately the same as the depth of the groove.
  • the electrical connection unit 24 can be pasted on the base plate 11 and electrically connected to the circuit board 22 located in the groove.
  • the electrical connection unit 24 is attached to the bottom plate 11 and can press the circuit board 22 to limit the loosening of the circuit board 22 .
  • the electrical connection unit 24 can be fixed to the base plate 11, such as by glue or screws, so as to increase its stability and prevent the electrical connection unit 24 from being electrically connected to the circuit board 22 due to the loosening of the electrical connection unit 24. Failed due to disengagement.
  • a reinforcement unit 1001 may also be provided on the base 1 .
  • the reinforcement unit 1001 may include several first reinforcement structures 10011 and several second reinforcement structures 10012, and the first reinforcement structures 10011 and the second reinforcement structures 10012 may be connected.
  • the first reinforcement structure 10011 and the second reinforcement structure 10012 may be arranged vertically or substantially perpendicularly to each other, wherein the first reinforcement structure 1011 is extended along the length direction of the LED lighting device.
  • the first reinforcement structure 10011 protrudes toward the back of the base 1 (the side where the light source 2 is not provided), and similarly, the second reinforcement structure 10012 protrudes toward the back of the base 1 and is on the front of the base 1. Then the first reinforcement structure 10011 and the second reinforcement structure 10012 are in communication. Both the first reinforcement structure 10011 and the second reinforcement structure 10012 can be integrally formed on the base 1 , such as by drawing or stamping, so that the first reinforcement structure 10011 and the second reinforcement structure 10012 protrude toward the back of the base 1 . Moreover, the wall thicknesses of the first reinforcement structure 10011 and the second reinforcement structure 10012 are substantially the same as those of the rest of the base 1 . That is to say, in the case that no additional material is provided on the bottom plate 1 , the overall structural strength of the base 1 can be improved through the arrangement of the first reinforcement structure 10011 and the second reinforcement structure 10012 .
  • a part of the first reinforcing structure 10011 forms the aforementioned positioning unit 102 for mounting the circuit board 22 of the light source 2 , and the part of the first reinforcing structure 10011 has a first width.
  • One of the first reinforcement structures 10011 has a region for disposing the power supply 4 , and the first reinforcement structure 10011 has a second width. Since the first reinforcing structure 10011 is concave on the front of the base 1, when the power supply 4 is arranged at the first reinforcing structure 10011, the size of the power supply 4 protruding from the surface of the base 1 can be reduced, thereby reducing the overall thickness of the LED lighting device.
  • the remaining first reinforcing structures 10011 have a third width.
  • the dimension of the third width is smaller than the dimension of the first width, and the dimension of the first width is smaller than the dimension of the second width.
  • the dimension of the third width is greater than 2.5 mm.
  • the distance between adjacent first reinforcement structures 10011 is between 10mm and 30mm.
  • the optical component 3 includes an optical unit 31 and an installation unit 32 , and the installation unit 32 matches with the base 1 correspondingly.
  • the installation unit 32 is connected to the side wall 12 of the base 1 .
  • the installation unit 32 can be disposed on the inner side or the outer side of the side wall 12 .
  • the installation unit 32 is disposed on the outside of the side wall 12 so that the optical component 3 is entirely covered on one side of the base 1 in the light emitting direction of the LED lighting device.
  • the LED lighting device is installed on the ceiling, the base 1 is not exposed, and the user cannot directly see the base 1 . Only one set of optical units 31 is provided.
  • the mounting unit 32 includes a hole 303 disposed on the optical component 3 .
  • holes corresponding to the holes 303 are also provided on the base 1 , therefore, the optical component 3 and the base 1 can be fixed through the corresponding holes of the optical component 3 and the base 1 through rivets.
  • the mounting unit 32 is disposed on the outer edge of the optical component 3 and includes a wall portion 321 , the wall portion 321 is disposed around the side wall 12 of the base 1 and is disposed on the side wall 12 outside.
  • a bending portion 3211 is provided on the wall portion 321, and the bending portion 3211 covers or abuts against the end of the side wall 12 in the thickness direction of the LED lighting equipment, so it can be clamped by the bending portion 3211 and the optical member 3 itself
  • the side wall 12 is used to fix the optical component 3 to the base 1 .
  • the optical member 3 and the base 1 can be fixed without installing fasteners (such as bolts, rivets, etc.), which can prevent the fasteners from being arranged on the light-emitting surface of the optical member 3 and affecting the light-emitting surface of the optical member 3. (For example, local dark spots caused by the installation of fasteners on the light-emitting surface of the optical member 3), and can ensure the integrity and aesthetics of the appearance of the optical member 1 .
  • fasteners such as bolts, rivets, etc.
  • the optical component 3 is molded by plastic material.
  • the wall portion 321 of the optical component 3 can be deformed by hot pressing to form a bent portion 3211 , thereby completing the fixing.
  • the wall portion 321 and the side wall 12 of the base 1 can also be fixed by buckles, fasteners and the like.
  • the above-mentioned way that the wall portion 321 of the optical member 3 is arranged outside the side wall 12 and fixed can simplify the structure, thereby reducing the frame of the lamp, improving the aesthetics and light output effect, and reducing the dark area caused by the frame.
  • the mounting unit can also be constructed as a separate component.
  • the installation unit 8 includes a support 81, and the support 81 is arranged around the outer edge of the optical member 9 and/or the base 1 to provide support for the optical member 9 and the base 1, thereby improving the overall performance.
  • the support member 81 constitutes the outer frame of the LED lighting device.
  • the support 81 includes a first wall 811, the first wall 811 is attached to the surface of the optical member 9 in the thickness direction of the LED lighting equipment, and the wall 901 at the edge of the optical member 9 is clamped between the support 81 and the base 1 Between the end walls 121 extending outward from the side walls 12 .
  • the supporting member 81 may further include a second wall 812 having a stop portion 8121 on the second wall 812 .
  • There is a forcing member 1211 on the end wall 121 and the forcing member 1211 is inserted into the space formed between the stop portion 8121 and the first wall 811, and the wall 901 at the edge of the optical member 9 is pressed against the end wall 121 and the first wall 811. between the first walls 811 to complete the fixing of the three.
  • the forcing member 1211 is inserted between the first wall 81 and the stop portion 8121 in an interference manner, thereby completing the fixing.
  • the supporting member 1211 is pressed between the stop portion 8121 and the first wall 811, the end wall 121 is pressed against the wall 901 at the edge of the optical member 9, thereby fixing the base 1, the optical unit 2 and the supporting member 81 as one.
  • the end wall 121 has a first portion 1212 that is attached to the wall 901 at the edge of the optical member 9 and a second portion 1213 that is not attached to the wall 901 at the edge of the optical member 9.
  • the distance from the second portion 1213 to the first wall 812 is less than The distance from the first portion 1212 to the first wall 812 . That is to say, because there is no wall 901 at the edge of the optical member 9 between the second part 1213 and the first wall 811, there will be a certain gap between the second part 1213 and the first wall 811.
  • the second part 1213 connected to the forcing member 1211 has a space to deform toward the first wall 812, so that the forcing member is snapped into the stopper 8121 and the first wall 811.
  • the setting of the second part 1213 can make the deformation of the forcing member 1211 when it is inserted between the stop part 8121 and the first wall 811 occur in the forcing member 1211 and the second part 1213, preventing the deformation from concentrating on the forcing member.
  • Part 1211 sometimes causes the supporting part 1211 to be damaged or cannot be normally snapped between the stopper part 8121 and the first wall 811 .
  • the end of the forcing member 1211 is against the stop portion 8121, and at least a part of the main body of the forcing member 1211 can maintain a gap with the second wall 812, so that the forcing member 1211 can have sufficient elastic deformation, Sufficient force is maintained on the stop portion 8121 to prevent the forcing member 1211 from slipping from between the stop portion 8121 and the first wall 811 .
  • the distance between the end of the forcing member 1211 and the second wall 812 is the shortest, and the distance between the forcing member 1211 and the second wall 812 gradually increases in the direction of the forcing member 1211 toward the end wall 121 .
  • the supporting member 81 may be formed by sheet metal, for example, formed by bending a thin sheet material.
  • the support 81 can also be a profile formed by extrusion.
  • support members 81 There are multiple sets of support members 81, and adjacent support members 81 can be fixed by welding.
  • the supporting member 81 does not exceed the space defined by the optical member 9 , therefore, the supporting member 81 does not occupy an additional thickness dimension of the LED lighting device.
  • the lower surface of the first wall 811 of the support member 81 may be flush or substantially flush with the lower surface of the optical member 9 .
  • the optical unit 31 in this embodiment includes several first optical components 311 (light-transmitting components), and the light generated when the light source 2 is in operation can pass through the first optical components 311 .
  • the light source 2 includes several LED arrays 23 , and the LED array 23 includes at least one LED lamp bead 21 .
  • each LED array 23 includes a plurality of LED lamp beads 21 .
  • the LED array 23 corresponds to the first optical member 311 , that is to say, the LED array 23 and the first optical member 311 are configured in one-to-one correspondence, and both are provided in the same number. In other embodiments, it can also be set that the number of first optical members 311 is greater than the number of LED arrays 23 .
  • the LED lamp beads 21 in the LED array 23 only correspond to the first optical member 311 , that is, the lamp beads 21 in the LED array 23 are completely covered by the first optical member 311 . At least a part of the light generated by the LED beads 21 in the LED array 23 is emitted from the first optical member 311 .
  • the first optical component 311 has a light-emitting surface 3111, and there is a distance between the light-emitting surface 3111 and the LED lamp beads 21 of the LED array 23, and the light generated by the LED lamp beads 21 is emitted from the light-emitting surface 3111 shoot out.
  • a plurality of LED lamp beads 21 of the LED array 23 are arranged along a first direction.
  • the first optical member 311 (or the light emitting surface 3111 ) is extended along the first direction.
  • the light emitting surface 3111 has a main body portion 31111 extending along the first direction and end portions 31112 located at both ends of the main body portion 31111 in the first direction.
  • the cross-section of the main body 31111 (the cross-section in the width direction of the light-emitting surface 3111 ) is arc-shaped, and the end portion 31112 is configured as an arc-shaped surface, so that the light-emitting surface 3111 has a better light-emitting effect.
  • the reflection of the light is reduced, and the light extraction efficiency can be improved, thereby increasing the light efficiency.
  • the light-emitting surface 3111 is closer to the LED lamp bead 21 than the second optical member 312.
  • the temperature at the light-emitting surface 3111 is higher than that of the second optical member 312. Therefore, the light-emitting surface 3111 adopts an arc shape. , can improve the structural strength, and has better deformation resistance when heated.
  • the light emitting surface 3111 can also be configured as a spherical surface or a plane.
  • the first optical member 311 is configured to have a light diffusion function, so as to increase the light output angle of the light source 2 while avoiding light concentration and causing visual discomfort.
  • the first optical component 311 has a light diffusion function due to its own material properties, such as plastic or acrylic material.
  • the surface of the first optical component 311 is coated with a diffusion coating or provided with a diffusion film (not shown in the figure), so that it has a light diffusion function.
  • the optical unit 31 also has several second optical members 312 (anti-glare components) corresponding to the first optical member 311, and the second optical member 312 is configured to reflect at least a part of light from the first optical member 311.
  • the light emitted from the optical member 311 , and at least a part of the light emitted from the first optical member 311 is transmitted through the second optical member 312 .
  • At least a part of the light passing through the second optical member 312 can be emitted from the adjacent second optical member 312, or at least a part of the light passing through the second optical member 312 can be reflected from the second optical member 312 after being reflected.
  • the component 312 is emitted to avoid forming a dark area at the second optical component 312, thereby improving the aesthetics of the LED lighting device when it is lit.
  • the second optical member 312 reflects at least a part of the light emitted from the first optical member 311 , which plays a role of blocking light to reduce glare.
  • the first optical member 311 on the cross-section of the first optical member 311 in the width direction, the first optical member 311 has a midpoint 3113 of the bottom, where the bottom refers to the fact that the LED lighting equipment is normally installed on a horizontal plane and faces It is at the bottom position of the first optical member 311 when the light is emitted downward.
  • the midpoint 3113 here refers to the midpoint of the cross section of the first optical member 311 in its width direction.
  • the second optical component 312 has a near end 3123 and a far end 3124 on the height direction section of the LED lighting device, wherein the near end 3123 is closer to the matching light source 2 than the far end 3124 .
  • the distal end 3124 is the bottommost end of the second optical member 312 in the height direction of the LED lighting device.
  • the included angle a between the line connecting the midpoint 3113 and the distal end 3124 and the lower end surface of the LED lighting device (the plane where the second connecting wall 314 is located) is between 10° and 45°. Further, the included angle a between the line connecting the midpoint 3113 and the distal end 3124 and the lower end surface of the LED lighting device (the plane where the second connecting wall 314 is located) is between 25 degrees and 35 degrees. In this way, part of the light directly emitted from the first optical member 311 can be shielded to reduce glare. It should be noted that the above positional relationships, such as the midpoint, the proximal end, and the distal end, are all based on the cross-sectional view shown in FIG. 4 .
  • the second optical member 312 includes one or more sets of optical walls 3121 configured to reflect and transmit light.
  • the optical wall 3121 is disposed around the first optical member 311 .
  • one set of second optical components 312 has four sets of optical walls 3121 , and the four sets of optical walls 3121 are connected sequentially, and the optical walls 3121 are configured as a plane.
  • a group of second optical components 312 may only have a group of optical walls 3121, and the cross-sectional shape of the optical walls 3121 is ring.
  • the optical wall 3121 can be an inclined surface, which is inclined relative to the base plate 11 . As shown in FIG. 10 and FIG. 16, in one embodiment, the transition between adjacent optical walls 3121 is smooth, such as using a circular arc transition, so as to avoid forming a dark area at the angle between adjacent optical walls 3121, And it can make the reflection effect between the adjacent optical walls 3121 better.
  • the optical walls 3121 of adjacent second optical members 312 are connected by a first connecting wall 313 . At least a part of the light transmitted from the second optical member 312 is emitted from the first connection wall 313 to avoid forming a dark area at the first connection wall 313 .
  • the thickness of the first connecting wall 313 is greater than that of the optical wall 3121 to provide better connection strength, and the thinner optical wall 3121 makes the optical wall 3121 have less light loss.
  • a reinforcing structure 316 may be provided on the second optical component 312 to improve the structural strength. Specifically, a reinforcing structure 316 is provided between the optical walls 3121 of adjacent second optical members 312 . That is to say, the optical walls 3121 between adjacent second optical members 312 are connected by the reinforcing structure 316 . In this embodiment, the reinforcing structure 316 is a thin-walled structure.
  • the optical unit 31 further includes a second connecting wall 314, the installation unit 32 is connected to the adjacent second optical member 312 through the second connecting wall 314, from the second optical member At least a part of the light transmitted by 312 is emitted from the second connecting wall 314 to avoid forming a dark area at the second connecting wall 314 .
  • the second connecting wall 314 is adjacent to the end wall 13 . Moreover, the surface of the second connecting wall 314 is substantially flush with the end wall 13 to enhance the aesthetics.
  • the end wall 13 is provided with an inner recess 131 , and the second connecting wall 314 is placed at the inner recess 131 , so that the surface of the second connecting wall 314 is flush or substantially flush with the end wall 13 .
  • the wall thickness of the first optical member 311 and the second optical member 312 in this embodiment is smaller than the wall thickness of the first connecting wall 313 or the second connecting wall 314 respectively.
  • the first optical member 311 is mainly used for light output from the light source 2 (too thick a wall will increase light loss)
  • the second optical member 312 is mainly used for reflection and light transmission (too thick a wall will increase light loss)
  • the second optical member 312 is mainly used for reflection and light transmission (too thick a wall will increase light loss).
  • the first connecting wall 313 and the second connecting wall 314 are mainly used for structural connection, and strength needs to be ensured. Therefore, the above-mentioned setting of wall thickness can meet optical and structural requirements respectively.
  • the optical component 3 is formed as an integral structure.
  • the optical member 3 has a first region 301 corresponding to the bottom plate 11 of the base 1 , and a second region 302 corresponding to the sidewall 12 .
  • the second region 302 is configured to be connected with the side wall 12 .
  • the second area 302 is configured with the aforementioned installation unit 32.
  • the light source 2 when the LED lighting device is working, the light source 2 is turned on, and at least 80% of the first area 301 has light output, so as to obtain relatively uniform light output. Further, when the LED lighting device is working, the light source 2 is turned on, and at least 90% of the first area 301 has light output, so as to obtain relatively uniform light output. Furthermore, when the LED lighting device is working, the light source 2 is turned on, and the areas on the first area 301 all have light emission, so as to obtain uniform light emission.
  • the first area 301 may include the aforementioned first optical member 311 , second optical member 312 , first connecting wall 313 and second connecting wall 314 .
  • multiple groups of circuit boards 22 can be provided in this embodiment, and one or more groups of LED arrays can be provided on each group of circuit boards 22 .
  • This embodiment also includes an electrical connection unit 24 through which the LED lamp beads 21 on different circuit boards 22 are electrically connected.
  • the electrical connection unit 24 uses wires.
  • the electrical connection unit 24 adopts a flexible circuit board, and the flexible circuit board is directly welded and fixed to the circuit board 22. Specifically, the electrical connection unit 24 is attached to the circuit board 22 and directly welded to multiple groups of circuit boards 22. , so as to realize the electrical connection.
  • the electrical connection unit 24 is connected by a PCB board.
  • multiple groups of optical units 31 can be provided, for example, 2 groups or 4 groups. Adjacent optical units 31 are connected by the third connecting wall 315 . An accommodating space is formed between the third connecting wall 315 and the bottom plate 11 , and the power supply 4 is disposed in the accommodating space. Since the power supply 4 is arranged inside the LED lighting equipment, compared with the power supply 4 being arranged outside the base 1, the power supply 4 will not occupy the extra height space of the LED lighting equipment, and the height of the LED lighting equipment can be reduced. In this embodiment, the height of the LED lighting equipment is less than 35mm. Further, the height of the LED lighting equipment is less than 30 mm. Furthermore, the height of the LED lighting equipment is between 20mm and 30mm.
  • the difference between the width of the third connecting wall 315 and the width of the first connecting wall 313 is no more than 15mm, 12mm, 10mm or 8mm.
  • the difference between the width of the third connecting wall 315 and the width of the first connecting wall 313 is controlled within the above range, the overall uniformity of the optical member 3 can be improved and the visual effect can be improved.
  • the power supply 4 is extended along the length direction of the LED lighting equipment. Moreover, the power supply 4 may be disposed in the middle area of the LED lighting device in the width direction. Since the power source 4 itself has a certain structural strength, when it is installed on the base 1, the structural strength of the bottom plate 1 can be further increased. The power source 4 is located between the corresponding optical walls 3121 of the corresponding two groups of second optical components 312 .
  • the power supply 4 includes a power supply circuit board 41 and electronic components 42 .
  • the electronic components 42 are disposed on the power supply circuit board 41 .
  • the power supply circuit board 41 can be attached to the front of the base 1 directly or indirectly.
  • the power supply 4 may further include a power supply box 43 .
  • the power supply box 43 is disposed on the front of the base 1 , and an accommodating space is formed between the power supply box 43 and the base 1 for accommodating the power supply circuit board 41 and the electronic components 42 .
  • the power source 4 is arranged between the two groups of light sources 2 .
  • a light redirection unit 431 is provided outside the power supply box 43 to redirect the light emitted from the light source 2 to the power supply box 43 and finally emit from the LED lighting device, reducing the absorption of light by the power supply 4 and improving light output efficiency.
  • the light redirecting unit 431 is configured with reflective and or light diffusing functions.
  • the outer surface of the power box 43 directly forms the light redirecting unit 431 .
  • a separate component is disposed outside the power supply box 43 to form the light redirection unit 431 .
  • the length of the power supply box 43 is configured to be less than half of the length of the LED lighting device.
  • the length of the light redirecting unit 431 is greater than the length of the power supply box 43 .
  • one end of the light redirecting unit 431 in the length direction fits (butts) with the side of one side of the base 1 , and the other end fits (butts) with the side of the other side of the base 1 .
  • the above arrangement of the light redirection unit 431 can prevent the arrangement of the power supply 43 from affecting the local light emission of the optical component 3 .
  • a distance is maintained between the light redirecting unit 431 and the optical member 3 , and a light channel 1002 is formed in the distance.
  • the minimum value of the spacing is 2.5mm. That is to say, the distance from any point on the light redirecting unit 431 to any point on the optical component 3 is greater than or equal to 2.5 mm. If the spacing is too small, it will affect the reflection and diffusion of light in the light channel 1002 .
  • the shortest distance from any point on the light redirection unit 431 to any point on the optical member 3 is no more than 12 mm, which is beneficial to control the overall size of the LED lighting device.
  • the optical channel 1002 includes a first optical channel 10021 and a second optical channel 10022 communicating with it.
  • the first light channel 10021 is formed between the side surface 4311 of the light redirecting unit 431 and the optical wall 3121 of the second optical member 312 .
  • the side surface 4311 of the light redirecting unit 431 and the optical wall 3121 of the second optical member 312 are parallel or substantially parallel.
  • the second light channel 10022 is formed between the top surface 4312 of the light redirecting unit 431 and the third connecting wall 313 .
  • the top surface 4312 of the light redirecting unit 431 is parallel or substantially parallel to the third connecting wall 313 .
  • the distance between the side surface 4311 of the light redirecting unit 431 and the optical wall 3121 of the second optical member 312 is smaller than the distance between the top surface 4312 of the light redirecting unit 431 and the third connecting wall 313, so as to facilitate More light can be emitted from the third connecting wall 313 through the second light channel 10022 , so as to reduce the dark area formed at the third connecting wall 313 .
  • Electronic component 42 has a length dimension, a width dimension and a height dimension. Referring to Fig. 52, among the electronic components 42, there are at least two different types of electronic components 42, the length dimension of which is greater than the width dimension, and the length direction of the electronic components 42 extends along the length direction of the circuit board 22, so that the overall power supply 4 can be reduced. The width of the desired setting. These two different types of electronic components 42 may include electrolytic capacitors, transformers.
  • the electronic components 42 at least a part of the electronic components 42 (the electronic components 42 are capacitors, ICs or resistors, etc.), its length dimension is greater than the width dimension, and the length direction of the electronic components 42 extends along the width direction of the circuit board 22, so that Reducing the overall required length of the power supply 4 is beneficial to the control of the length of the power supply 4 .
  • the electronic components 42 at least a part of the electronic components 42 (such as transformers, capacitors or resistors), the height dimension is smaller than the width dimension, and the height direction of the electronic components 42 is arranged along the thickness direction of the circuit board 22, which can reduce the overall weight of the power supply 4. Height, to reduce the impact on the light output due to the setting of the power supply 4.
  • the length dimension of the power supply 4 accounts for more than one-fifth of the length dimension of the LED lighting equipment. In one embodiment, the length of the power supply 4 accounts for more than two-fifths of the length of the LED lighting device.
  • the size of the power supply 4 referred to here can be the length of the power supply board 41 (the size of the power supply circuit board 41 on the length direction of the circuit board 22), and can also be the most two sides of the power supply 4 on the length direction of the circuit board 22.
  • the dimension occupied between the electronic components 42 on the side (this dimension includes the two electronic components 42 themselves). In this way, the power supply 4 can be distributed over a wider area on the base 1 to correspond to a larger area of the base 1 , so as to improve the heat dissipation performance.
  • the power supply circuit board 41 has a first surface 411 and a second surface 412, wherein the first surface 411 is a side attached to or corresponding to the bottom of the power supply box 43, and the bottom of the power supply box 43 is It is pasted on the base 1 , and the second surface 412 is the other surface of the power circuit board 41 opposite to the first surface 411 .
  • both the first surface 411 and the second surface 412 are provided with electronic components 42 .
  • the electronic component 42 on the first surface 411 includes one or more heating elements 4111 (such as resistors, ICs), and the heat generated by the heating elements 4111 on the first surface 411 can be transferred to the power supply box more quickly. 43, and dissipate heat through base 1. At least one heating element 4111 on the first surface 411 can thermally contact the bottom of the power box 43 to form a heat conduction path, thereby improving heat dissipation efficiency.
  • the distance between any electronic component 42 on the first surface 411 and the bottom of the power supply box 43 is no more than 4 mm or 3.5 mm, so that the heat transfer efficiency between the electronic component 42 and the bottom of the power supply box 43 can be improved. high.
  • the power supply box 43 is made of metal, so as to transfer the heat generated by the heating element 4111 to the power supply box 43 more quickly, and then to the base 1 .
  • a thermally conductive material 4112 is provided on the first surface 411, and the thermally conductive material 4112 is a material with high thermal conductivity (such as iron, aluminum, copper, tin, etc. alloy as the main material), or the thermal conductivity of the thermal conductive material 4112 is at least greater than the thermal conductivity of the power circuit board 41 .
  • the thermal conductivity of the heat conduction material 4112 is greater than that of the power supply circuit board 41 .
  • the electronic components 42 on the second surface 412 include heating elements 4121 (such as transformers, inductors, ICs), and the heating elements 4121 on the second surface 412 form a heat conduction path with the heat conducting material 4112 .
  • the heating element 4121 on the second surface 412 is connected to the heat conducting material 4112 through its conductive pins, and forms a heat conduction path.
  • the thermally conductive material 4112 can transfer heat to the bottom of the power box 43 through thermal radiation or thermal conduction.
  • the number of electronic components 42 (especially heating elements 4111) on the first surface 411 is more than the number of electronic components 42 (especially heating elements 4111) on the second surface 412 ), since the electronic components 42 on the first surface 411 are closer to the power box 43, the heat can be dissipated more quickly to improve the overall heat dissipation efficiency of the power supply 4.
  • the number of electronic components 42 provided per unit length is less than 1, 0.9, 0.8 or 0.7 indivual.
  • the arrangement density of the electronic components 42 in the length direction of the power circuit board 41 can be controlled , so as to facilitate the control of the spacing between the electronic components 42, thereby reducing the mutual thermal influence between the electronic components 42 (especially heating elements).
  • the effect of reducing the heat influence can be further achieved.
  • the power circuit board 41 includes multiple The electronic components 42 that generate high temperature can be configured so that the electronic components 42 that can generate high temperature on the same surface are not adjacent to each other, such as interspersed with other electronic components 42 (such as capacitors that generate less heat and are not easily affected by heat. components), in this way to further reduce the influence of the high temperature generated by the electronic components 42 on the operation of the lamp.
  • the power supply 4 can also be arranged on the back of the base plate 11, at this time, there is no need to provide an accommodation space on the optical unit 31, that is, there is no need to arrange a third connecting wall 315 (as shown in Figure 3 and shown in FIG. 5 ), so that the continuity of the optical unit 31 is better, and the light-emitting effect and the aesthetics of the appearance are improved.
  • an end wall 13 is further provided on the base 1 , and the end wall 13 is formed on the outer edge of the base 1 and connected to the side wall 12 .
  • the end wall 13 is arranged parallel or substantially parallel to the bottom plate 11 .
  • the side wall 12 and the end wall 13 form an accommodating space (there is a height difference between the end wall 13 and the bottom plate 11, and the power supply 4 is at least partially disposed in the height difference), and the power supply 4 is at least partially located in the accommodating space in the height direction, so as to This reduces the height space occupied by the power supply 4 of the LED lighting device.
  • the height direction of the power supply 4 is located in the accommodating space.
  • the length dimension of the power supply 4 accounts for 80%, 85%, 90% or more than 95% of the length dimension of the base 1, so that the power supply 4 can increase the structural strength of the base 1 in the length direction.
  • the power supply is disposed between the base 1 and the optical component 3 .
  • the surface of the base 1 protrudes outward (to the back of the base 1 ) to form a convex portion 103
  • the convex portion 103 forms a concave portion 104 on the front of the base 1
  • the power supply can be partially or completely located in the concave portion 104 .
  • a cover body 105 may be provided on the base 1 , and the cover body 105 covers the concave portion 104 , thereby forming an accommodating space 106 between the concave portion 104 and the cover body 105 .
  • the power supply is located inside the accommodation space 106 .
  • the cover 105 protrudes from the front of the base 1 , so the volume of the accommodating space 106 is larger than the volume of the concave portion 104 .
  • the power supply does not need to be additionally equipped with a separate power supply box, which can simplify the structure and save costs.
  • one set of protrusions 103 is provided.
  • one group of LED lighting devices is rotated at a certain angle (such as 90 degrees, 180 degrees or 270 degrees), and the convex parts 103 of the two groups of LED lighting devices are misplaced so that the two groups When LED lighting devices are stacked back to back, their total height is less than twice the height of a single group of LED lighting devices. Therefore, when two or more groups of LED lighting devices are stacked in the above method, the packaging size can be reduced and the transportation cost can be reduced.
  • a coordinate system is established on the back of the LED lighting device, with the center of the LED lighting device as the origin, the convex part 103 can be completely located in one of the quadrants (as shown in Figure 27), or completely located in two quadrants ( as shown in Figure 26).
  • two groups of protrusions 103 are provided, and there is a gap 107 between the two groups of protrusions 103 .
  • the two groups of protrusions 103 may extend along the same direction, for example along the length or width of the LED lighting device.
  • the gap 107 is located at the center of the base 1 , and its dimension along the extending direction of the protrusion 103 is larger than the width of the protrusion 103 .
  • the convex portion 103 is located at the middle position in the length or width direction of the LED lighting device (base 1), so that the LED lighting device as a whole has a generally symmetrical structure.
  • a set of cover bodies 105 are respectively matched with two sets of concave portions 104 .
  • the cover 105 is provided with an insertion wall 1051, and the base 1 is provided with a corresponding insertion hole 108. When the insertion wall 1051 on the cover 105 is inserted into the insertion hole 108 of the base 1, the cover 105 can be fixed. to base 1.
  • the distance between the LED lamp bead 21 and the cover body 105 is controlled to be greater than 15mm.
  • the angle a between the side wall of the cover body 105 and the surface of the base 1 can be controlled to be greater than 120 degrees. In this way, the influence of the cover body 105 on the light emitted by the LED lamp bead 21 can be prevented or reduced.
  • the LED lighting device in an embodiment may further include a hanging support 5 configured to install the LED lighting device on a bracket (commonly known as a keel) on the ceiling.
  • the hanger 5 can be made of metal, such as copper or iron.
  • One end of the hanging support member 5 is fixed on the end wall 13, and the other end can be bent accordingly to hang it on the bracket.
  • the height of the first optical member 311 is at most no more than half of the height of the second optical member. In order to reduce the light emitted directly from the LED lighting device from the side of the first optical member 311 . That is to say, the light emitted from the first optical component 311 will be more redirected by the second optical component 312 to adjust the output light of the LED lighting device.
  • the LED lamp bead 21 of the LED array 23 has a beam angle A, and the definition of the beam angle (the light intensity reaches 50% of the normal light intensity, the angle formed by the two sides is the beam angle Angle) is prior art, no longer repeat them here.
  • the value of the beam angle A may be between 100 and 130 degrees.
  • the LED lamp bead 21 is projected onto the inner surface of the first optical member 311 at the boundary of the beam angle A, and forms a projection area m on the inner surface of the first optical member 311 (the projection area m is a curved surface or a plane or other irregularities. surface), the area of the projected area m is greater than 500 square millimeters.
  • the light intensity on the projected area m should be less than 50000 lux without considering the influence of the adjacent LED lamp beads 21 .
  • the size of the projection area m depends on the distance from the LED lamp bead 21 to the first optical member 311 .
  • the distance from the LED lamp bead 21 to the first optical member 311 is controlled between 6 mm and 15 mm.
  • the light intensity on the projection area m should be greater than 10000 lux.
  • the luminous flux of the LED lamp bead 21 is L.
  • the projection areas m of the LED lamp beads 21 of the same LED array 23 on the inner surface of the first optical member 311 may partially overlap.
  • the illuminance at any position in any projection area m shall not exceed 5L/m, so as to prevent the projection area m of the LED lamp beads 21 from When superimposed, a strong light is formed.
  • the illuminance at any position in any projection area m does not exceed 4 L/m, so as to prevent the formation of strong light when the projection areas m of the LED lamp beads 21 overlap. In one embodiment, the illuminance at any position within any projection area m does not exceed 3 L/m, so as to prevent the formation of strong light when the projection areas m of the LED lamp beads 21 overlap. In one embodiment, the illuminance at any position within any projection area m does not exceed 2 L/m, so as to prevent the formation of strong light when the projection areas m of the LED lamp beads 21 overlap.
  • the distance between the LED lamp beads 21 is the distance between the LED lamp beads 21 .
  • the center-to-center distance between the LED lamp beads 21 is controlled to be greater than 4 mm or greater than 4.5 mm.
  • the number of LED lamp beads in the LED array 23 is n, and the number of projection areas m superimposed by any area of any projection area m is less than or equal to n. In one embodiment, the number of LED lamp beads in the LED array 23 is n, and the number of projection areas m superimposed by any area of any projection area m is less than n.
  • the total projected area area on the inner surface of the first optical member 311 is M.
  • the total projection area on the inner surface of the first optical member 311 is M It is composed of the boundary between two LED lamp beads 21 and the projection area m of the inner surface of the first optical member 311, that is, the total area of the projection area M is the projection area m of the two LED lamp beads 21 on the inner surface of the first optical member 311 The sum of the areas is then subtracted from the area of the overlapping region.
  • the luminous intensity near the optical axis of the beam angle A is greater than the luminous intensity of the boundary area of the beam angle A, that is, the luminous intensity within the range of a projection area m is not uniform. Therefore, it can be set as follows, that is, in the total projected area M on the inner surface of the first optical member 311, more than 30%, 35%, or 40% of the area has the superposition of at least two groups of projected areas m, so as to improve the total projected area.
  • the uniformity of illumination within the area M can be set to no more than 25%, 20% or 18%.
  • a region has a superposition of 4 or more sets of projected areas m.
  • only one optical unit (no lens) is provided to achieve the uniformity of light output, simplify the structure, and reduce the cost of materials.
  • a first cavity 3001 is formed in the first optical member 311 (between the first optical member 311 and the surface of the base 1), and the adjacent second optical A second cavity 3002 is formed between the members 312 .
  • the first optical member 311 is connected to the optical wall 3121 of the second optical member 312 in its length direction, and communicates the first cavity 3001 and the second cavity 3002 .
  • the LED lamp bead 21 emits light
  • at least part of the light enters the second cavity 3002 after being reflected by the base 1 and the first optical member 311, and passes through the corresponding optical wall 3121 and/or the first connecting wall 313, In order to improve the light emitting effect of the optical member 3 .
  • a first cavity 3001 is formed in the first optical member 311 (between the first optical member 311 and the surface of the base 1), and the adjacent second optical member 312 A second cavity 3002 is formed between them.
  • the first optical member 311 is not connected (not directly connected) to the optical wall 3121 of the second optical member 312 in its length direction and width direction, therefore, the first cavity 3001 and the second cavity 3002 are not connected (not including The connection caused by the assembly gap, the assembly gap here is less than 5mm, can be regarded as the first cavity 3001 and the second cavity 3002 are not connected), which can reduce the light generated when the light source 2 works in the first cavity
  • the light reflected by the light source 3001 and enters the second cavity 3002 so that the light emitted by the light source 2 is more concentrated and emitted through the first optical member 311 .
  • the distance between the end of the first optical member 312 (in terms of FIGS. 36 and 38 , that is, the lower part of the first optical member 312 ) and the bottom plate 11 of the base 1 is different.
  • the end of the first optical member 312 (in terms of FIG. 36 and FIG. 38 , that is, the lower part of the first optical member 312 ) is at least partially bonded to the bottom plate 11 of the base 1 to further reduce light leakage.
  • the bottom plate 11 is provided with a positioning groove 111 , and the light source 2 is at least partially accommodated in the positioning groove 111 along its height direction.
  • the circuit board 22 of the light source 2 is at least partially accommodated in the positioning groove 111 in the thickness direction.
  • the end 3112 of the first optical member 312 in terms of FIG. 36 and FIG. 38 , that is, The lower part of the first optical member 312 can be directly pasted on the base plate 11 .
  • the end 3112 of the first optical member 312 (in terms of FIGS. 36 and 38 , that is, the lower part of the first optical member 312) is against The surface of the circuit board 22. At this time, the end 3112 of the first optical member 312 (in terms of FIGS. The height exposed to the outside of the positioning groove 111.
  • the optical wall 3121 has a reflective function, which can reflect part of the light emitted from the first optical member 311, so as to reduce the light output of the LED lighting device in the lateral direction of the first optical member 311, so that Reduce glare.
  • the optical wall 3121 forms an acute angle A with the optical axis of the LED lamp bead 21 on the cross section of the first optical member 311 in the width direction.
  • the acute angle A formed between the optical wall 3121 and the optical axis of the LED lamp bead 21 is 30 to 60 degrees.
  • the optical wall 3121 includes a wall portion corresponding to the length direction of the first optical member 311 and a wall portion corresponding to the width direction of the first optical member 311.
  • the angles between the wall portion in the width direction of the member 311 and the optical axis of the LED lamp bead 21 are all within the range of the acute angle A mentioned above.
  • the included angle between the corresponding two groups of optical walls 3121 in the width direction of the first optical member 311 is smaller than the beam angle of the LED lamp bead 21, so as to block light and thereby reduce the glare value .
  • the included angle between the corresponding two groups of optical walls 3121 in the width direction of the first optical member 311 ie, twice the acute angle A
  • FIG. 39 shows a partial cross-sectional structural diagram of an LED lighting device installed horizontally and emitting light downwards in an embodiment, which shows a cross-section of the first optical member 311 in the width direction.
  • the optical wall 3121 of the second optical member 312 has a lower end point, and the lower end point extends along a direction and forms a straight line.
  • the outer surface of the component 311 is tangent, and the angle B between the straight line L1 and the horizontal plane (that is, the light-emitting surface of the LED lighting equipment, when the LED lighting equipment is installed horizontally, its light-emitting surface is parallel or roughly parallel to the horizontal plane) is greater than 10 degrees, 12 degrees, 14 degrees, 16 degrees or 18 degrees.
  • the angle B between the straight line L1 and the horizontal plane (that is, the light-emitting surface of the LED lighting equipment, when the LED lighting equipment is installed horizontally, its light-emitting surface is parallel or roughly parallel to the horizontal plane) is in the range of 15 to 25 degrees .
  • the angle B between the straight line L1 and the horizontal plane (that is, the light-emitting surface of the LED lighting equipment, when the LED lighting equipment is installed horizontally, its light-emitting surface is parallel or roughly parallel to the horizontal plane) is in the range of 18 to 20 degrees .
  • the human eye and the first optical member 311 are in a certain position (when the angle C between the line connecting the human eye to the first optical member 311 and the light-emitting surface of the LED lighting device is smaller than the aforementioned included angle B), Human eyes will not directly observe the outgoing light from the first optical member 311 , thus reducing glare.
  • a straight line L is set, one end of the straight line L is connected to the lower end point of the optical wall 3121, and the other end is tangent to the outer surface of the first optical member 311, and the straight line L is connected to the horizontal plane (that is, the LED lighting device
  • the angle B between the light-emitting surface and the horizontal plane is greater than 10 degrees, 12 degrees, 14 degrees, 16 degrees or 18 degrees.
  • the angle B between the straight line L1 and the horizontal plane is within a range of 15 to 25 degrees.
  • the angle B between the straight line L1 and the horizontal plane is 18 to 20 degrees.
  • the cross-sectional shape of the optical wall 3121 in this embodiment may not be straight, as long as the position of its lower end meets the above requirements, it can reduce glare.
  • FIG. 40 shows a partial cross-sectional schematic diagram of an embodiment of an LED lighting device installed horizontally and emitting light downwards, which shows a cross-section of the first optical member 311 along the length direction.
  • the optical wall 3121 of the second optical member 312 has a lower end point, and the lower end point extends along a direction and forms a straight line.
  • the outer surface of the component 312 is tangent, and the angle D is formed between the line L2 and the horizontal plane (ie, the light-emitting surface of the LED lighting device, when the LED lighting device is installed horizontally, the light-emitting surface is parallel or roughly parallel to the horizontal plane).
  • the value of the angle D is smaller than the value of the angle B. In some embodiments, the value of the included angle D is greater than 10 degrees, 11 degrees, 12 degrees or 13 degrees. In one embodiment, the value of the included angle D is in the range of 10 to 20 degrees. In one embodiment, the value of the included angle D is in the range of 12 to 16 degrees.
  • a straight line L2 is set, one end of the straight line L2 is connected to the lower end point of the optical wall 3121, and the other end is tangent to the outer surface of the first optical member 311, and the straight line L2 is connected to the horizontal plane (that is, the LED lighting device
  • the angle D between the light-emitting surface and the horizontal plane is in the range of 10 to 20 degrees.
  • the value of the included angle D is in the range of 12 to 16 degrees.
  • the cross-sectional shape of the optical wall 3121 in this embodiment may not be straight, as long as the position of its lower end meets the above requirements, it can reduce glare.
  • FIG. 41 shows a partial cross-sectional structural diagram of an LED lighting device installed horizontally and emitting light downwards in an embodiment, which shows a cross-section of the first optical member 311 in the width direction.
  • the two groups of optical walls 3121 corresponding to the second optical member 312 of the LED lamp bead 21 have lower endpoints, and the light emitting surface of the LED lamp bead 21
  • the angle between the lines L3 and L4 between the center and the lower end points of the two groups of optical walls 3121 is F, and the value of the angle F is greater than the beam angle A of the LED lamp bead 21 (the light intensity of the LED lamp bead 21 reaches the normal line At 50% of the light intensity, the angle formed by both sides is 0.8 times of the beam angle A), so as to prevent the optical wall 3121 from blocking the light output of the LED lamp bead 21 too much, causing light loss, and then reducing the light output efficiency.
  • the value of the angle F is smaller than the beam angle A of the LED lamp bead 21 (the light intensity of the LED lamp bead 21 reaches 50% of the normal light intensity, and the angle formed by the two sides is the beam angle A, here
  • the value of the beam angle A is about 1.2 times of about 120 degrees), so as to ensure that the optical wall 3121 has a certain light blocking effect, so as to reduce glare.
  • FIG. 42 shows a partial cross-sectional schematic diagram of an embodiment of an LED lighting device installed horizontally and emitting light downwards, which shows the cross-section of the first optical member 311 along the length direction.
  • the two groups of optical walls 3121 of the second optical member 312 correspond to the For the LED array 23 in the first optical member 311, the two groups of optical walls 3121 have lower endpoints, which correspond to the midpoint of the light-emitting surface of any LED lamp bead 21 in the LED array 23 of the first optical member 311 and the two groups of optical walls.
  • the included angle between the connecting lines L5 and L6 of the lower end points of the wall 3121 is G, and the value of the included angle G is greater than the beam angle A of the LED lamp bead 21 (where the light intensity of the LED lamp bead 21 reaches 50% of the normal light intensity.
  • the angle formed by the two sides is the beam angle A, and the value of the beam angle A here is about 0.8 times of about 120 degrees), so as to prevent the optical wall 3121 from blocking the light emitted by the LED lamp bead 21 too much, resulting in Light loss, thereby reducing the light extraction efficiency.
  • the value of the angle G is less than 1.2 of the beam angle A of the LED lamp bead 21 (the light intensity of the LED lamp bead 21 reaches 50% of the normal light intensity, and the angle formed by the two sides is the beam angle A). times, to ensure that the optical wall 3121 has a certain light blocking effect, so as to reduce glare.
  • Fig. 43 shows a partial cross-sectional structural schematic diagram of an LED lighting device installed horizontally and emitting light downwards in an embodiment, which shows a cross-section in the width direction of the first optical member 311, and the cross-section is cut at the length of the first optical member 311 31111 on the body part of the direction.
  • a rectangular coordinate system is established, with the center of the circuit board 22 in the width direction as the origin, the thickness direction of the LED lighting device as the Y axis, and the width direction of the first optical member 311 as the X axis. Any point on the light-emitting surface 3111 of the first optical member 311 conforms to the following formula:
  • A is a constant, and the range of A is 0.048 to 0.052; E is the meaning of the index (exponent); K is a constant, and the range of K is 9 to 12.
  • the LED lamp bead 21 can be mounted on the circuit board 22 (installed in the middle position in the width direction of the circuit board 22), and the LED lamp bead 21
  • the beam angle better corresponds to the light-emitting surface 3111 of the first optical member 311 (in the width direction), so that the light-emitting surface 3111 has a uniform light distribution.
  • any point on the optical wall 3121 of the second optical member 312 conforms to the following formula:
  • a is a constant, and its absolute number ranges from 1.35 to 1.45;
  • L is a constant, and the range of L is 18 to 22.
  • the optical wall 3121 can better redirect the light incident on the optical wall 3121 to adjust light distribution and improve glare.
  • thermal resistance layer that is, the optical member 3
  • the LED lamp bead 21 there is only one layer of thermal resistance layer (that is, the optical member 3 ) in the direction of the optical axis (light emitting direction) of the LED lamp bead 21.
  • the LED lamp bead 21 When the LED lamp bead 21 is working, at least part of the heat generated by it is radiated to thermal resistance layer, and dissipate heat through the thermal resistance layer.
  • it needs to pass through multiple sets of thermal resistance layers in the prior art, at least two groups of lampshades, lenses, diffusion plates or light guide plates are usually provided to achieve the effect of uniform light output, but the above components all constitute thermal resistance layers. ) to dissipate heat outward in the direction of the optical axis, and the heat dissipation efficiency is improved.
  • the LED lamp bead 21 When the LED lamp bead 21 is working, the light generated by it hits the light-transmitting material , and shoot out from the LED lighting equipment after passing through the light-transmitting material.
  • it needs to pass through multiple groups of light-transmitting materials in the prior art, at least two groups of lampshades, lenses, diffusion plates or light guide plates are usually provided to achieve the effect of uniform light output, but the above components will cause certain light loss) to the direction of the optical axis to emit light outwards, and its light extraction efficiency is improved.
  • the light extraction efficiency of the LED lighting device is greater than 80%, 85% or 90%.
  • the light extraction efficiency here refers to the ratio of the luminous flux emitted from the LED lighting device to the total luminous flux generated by the LED lamp bead 21 .
  • the light-transmitting part (the first optical member 311 ) and the anti-glare part (the second optical member 312 ) of the LED lighting device are made of the same layered material and are integral members.
  • a light distribution curve of the LED lighting equipment is designed (the light distribution curve indicates that the LED lighting equipment is installed horizontally).
  • the LED lighting equipment is roughly square (for example, it is two feet), or it can be understood as the lamp structure described in any of the above embodiments, its light distribution curve is roughly axially symmetrical (also known as rotationally symmetric, It means that the light distribution curves in all directions are basically symmetrical or the same).
  • the ratio of light intensity (unit: cd) at the same angle of two sets of light distribution curves in any direction is between 0.8 and 1.2.
  • the ratio of light intensity (unit: cd) of two sets of light distribution curves in any direction at the same angle is between 0.9 and 1.1. Furthermore, the ratio of the light intensity (unit: cd) of the two sets of light distribution curves in any direction at the same angle is between 0.95 and 1.05. That is to say, when the ratio of the light intensity at the same angle of two groups of light distribution curves in any direction is within the above range, it can be considered that the light distribution curves of the LED lighting device in all directions are basically symmetrical or identical. As an example, Fig.
  • the ratio of light intensity at angles is between 0.8 to 1.2, 0.9 to 1.1 or 0.95 to 1.05.
  • the C0 plane is a plane perpendicular to the light-emitting surface of the LED lighting device and passing through the center line of the LED lighting device in one direction, and the one direction here is parallel to the length extension direction of the circuit board.
  • the C90 plane is a plane perpendicular to the C0 plane and passing through the center line of the LED lighting device in another direction, where the other direction is perpendicular to the length extension direction of the circuit board.
  • FIG. 45 shows a schematic diagram of the back of the LED lighting device.
  • the A0-A0 plane is the C0 plane
  • the B90-B90 plane is the C90 plane.
  • the lateral direction in accompanying drawing 45 is the arrangement direction of circuit board.
  • the LED lighting equipment is roughly square (for example, it is two feet), its light distribution curve is roughly axially symmetrical, and the light distribution curves in all directions are basically symmetrical or the same. Therefore, in this embodiment, the distribution of the C0 plane Light curves as an example.
  • a light distribution curve is proposed in this embodiment to solve the glare of LED lighting equipment and the uniformity of light output within the beam angle.
  • a coordinate system is established with the 0 point of the light distribution curve as the center, and within the range of 0 to 60 degrees, any point on the light distribution curve conforms to the following formula:
  • the beam angle is between 100° and 110°.
  • the light distribution curves on both sides of the 0-degree angle of the C0 plane are roughly symmetrical. In the range of 0 to 60 degrees, when any point on the light distribution curve satisfies the above formula, the LED lighting equipment can have relatively uniform light output within the beam angle and good glare control.
  • a coordinate system is established with the 0 point of the light distribution curve as the center, and within the range of -30 to 30 degrees, any point on the light distribution curve conforms to the following formula:
  • a is a constant, and the range of a is -0.25 to -0.27; E is an exponent (exponent); K is a constant, and the value of K is between 1600 and 1720.
  • the aforementioned design of the light distribution curve can be realized through the aforementioned structural design.
  • an optical component 9 is provided in an embodiment, which can be applied to the LED lighting device of the present invention.
  • the basic structure of the optical member 9 in this embodiment is substantially the same as that of the previous embodiment (the optical member shown in the embodiment shown in FIGS. 1 to 56 ).
  • the optical component 9 (optical unit 91) also includes a first optical component 911 and a second optical component 912, wherein the first optical component 911 is covered in the light emitting direction of the corresponding LED array 23, that is, the first optical component
  • the components 911 are arranged in a one-to-one correspondence with the LED arrays 23 , and both are provided with the same number.
  • the external dimensions of the LED lighting equipment are 2 feet by 2 feet (603mm*603mm), and the number of optical units 91 is set to 16 groups.
  • the luminous flux emitted from each group of optical units 91 ranges from 250 lumens to 350 lumens.
  • at least 50% of the luminous flux emitted from the optical unit 91 is directly emitted from the first optical member 911 (without being reflected by the second optical member 912), so as to reduce the reflection caused by the second optical member 912. The resulting light loss, thereby ensuring the light efficiency.
  • the light extraction efficiency of the lamps in the prior art is generally not higher than 75%, while in the LED lighting equipment in this embodiment, at least 50% of the luminous flux only passes through one layer of optical media (the first optical member 911 ), the overall light extraction efficiency can be higher than 80%.
  • the light extraction efficiency here refers to the ratio of the luminous flux emitted by the LED lighting device to the sum of the luminous flux generated by all LED lamp beads 21 .
  • the structure of the first optical component 911 may also be substantially the same as that of the first optical component 911 in the foregoing embodiments.
  • the second optical component 912 includes an optical wall disposed around the first optical component 911 .
  • the optical walls include two sets of first light redirecting walls 9121 and two sets of second light redirecting walls 9122 .
  • the first light redirecting wall 9121 is disposed on both sides of the circuit board 22 in the width direction
  • the second light redirecting wall 9122 is disposed on the length direction of the circuit board 22 .
  • Both the first light redirecting wall 9121 and the second light redirecting wall 9122 can be configured with reflection and/or light transmission functions.
  • the beam angle of the LED lamp bead 21 is A (the definition of the beam angle is the same as above).
  • the LED array 23 includes a plurality of LED lamp beads 21 , and the plurality of LED lamp beads 21 are arranged in a row along the length direction of the circuit board 22 .
  • the included angle a between the two sets of first light redirecting walls 9121 of the second optical member 912 is greater than the beam angle A of the LED lamp bead 21, therefore, even if the light of the LED lamp bead 21 is processed by the first optical member 911 ( For example, light diffusion) can also reduce the emission of the light emitted by the LED lamp bead 21 on the first light redirecting wall 9121, thereby reducing light loss.
  • the difference between the angle a between the two sets of first light redirecting walls 9121 of the second optical member 912 and the beam angle A of the LED lamp bead 21 does not exceed 30 degrees, so that the first The light redirecting wall 9121 reflects sufficient light (light emitted from the LED lamp bead 21 ), so that the LED lighting has a more uniform light distribution and better glare control.
  • the angle b between the two sets of second light redirecting walls 9122 of the second optical member 912 is smaller than the beam angle A of the LED lamp bead 21 and the angle b between the two sets of first light redirecting walls 9121 Angle a. Therefore, the second light redirecting wall 9122 can reflect the light emitted by more LED lamp beads 21 in the LED array 23, so as to reduce the glare of the LED lighting equipment in the direction in which the LED lamp beads 21 of the LED array 23 are arranged, and also make the first The light redirecting wall 9121 reflects sufficient light (light emitted from the LED lamp bead 21 ), so that the LED lighting has a relatively uniform light distribution. In some embodiments, the angle b between the two sets of second light redirecting walls 9122 of the second optical member 912 is smaller than 90°, 85°, 80° or 75°.
  • LED lamp beads 21 there are more than 10 LED lamp beads 21 (for example, 14) in the LED array 23, wherein at least 2, 4 or 6 LED lamp beads 23 emit light within the range of beam angle A corresponding to Second light redirecting wall 9122.
  • at least 2, 4 or 6 LED lamp beads 23 within the range of the beam angle A will strike the second light redirecting wall 9122 to reduce glare and make the optical unit 91 have better light distribution.
  • the LED lighting device may have different optical components to obtain different light emitting effects. That is to say, the basic structure of the LED lighting device in the embodiment shown in Fig. 57 to Fig. 60 is the same or substantially the same as that of the previous embodiment (ie, the structure of the base, power supply and light source, etc.), except that different optical components are replaced. As shown in FIGS.
  • the optical component 6 includes a first optical component 61 and a second optical component 62 , wherein the first optical component 61 is covered on the base 1 and configured to at least partially The light emitted by the light source 2 is redirected, and the second optical element 62 is disposed on the first optical element 61 and configured with one or more functions of light transmission, light diffusion, light refraction or light reflection.
  • optical units 611 are disposed on the first optical member 61 , and the optical units 611 correspond to the LED array 23 of the light source 2 .
  • the optical unit 611 includes a light exit hole 6111 , and the light exit hole 6111 exposes the corresponding LED array 23 to the optical unit 611 . That is to say, in the direction of the optical axis of the LED lamp beads 21 of the LED array 23 , the optical unit 611 will not form a shield, and will not cause light loss caused by light passing through different media.
  • the optical unit 611 is attached to the surface of the circuit board 22 of the light source 2, so that in the direction of the optical axis of the LED lamp bead 21, there is no gap between the circuit board 22 and the wall of the outer edge of the light outlet hole 6111 to prevent light from entering This gap causes light loss.
  • the distance between the optical unit 611 and the surface of the circuit board 22 of the light source 2 is less than 1 mm (the distance between the surface of the circuit board 22 and the wall of the outer edge of the light exit hole 6111 in the direction of the optical axis of the LED lamp bead 21 less than 1 mm), so as to reduce light entering the gap between the circuit board 22 and the wall of the outer edge of the light exit hole 6111, thereby controlling light loss.
  • the optical unit 611 includes a first light redirection wall 6112 and a second light redirection wall 6113, wherein the first light redirection wall 6112 is arranged on both sides of the width direction of the circuit board 22, and the second light redirection wall 6113 is arranged on On the length direction of the circuit board 22 and on both sides of the LED array 23 .
  • Both the first light redirecting wall 6112 and the second light redirecting wall 6113 can be configured with reflection and/or light transmission functions.
  • the second optical part 62 covers the back of the first optical part 61 to form an optical cavity composed of the first light redirection wall 6112, the second light redirection wall 6113 and the second optical part 62.
  • the light is finally emitted from the second optical member 62 .
  • at least 50% of the luminous flux produced by the LED array 23 (light source 2) only passes through one optical layer (excluding air) and exits from the LED lighting device, which can reduce the luminous flux caused by passing through multiple optical layers. Loss, improve light efficiency.
  • the first light redirecting wall 6112 has a first reflection part 61121 and a second reflection part 61122, wherein the first reflection part 61121 is configured to reflect the direct light of the LED lamp bead 21, and the second reflection part 61122 is configured only for Reflect secondary light (the light directly emitted by the LED lamp bead 21 is reflected and then projected to the second reflecting part 61122).
  • the first reflective part 61121 is closer to the position of the lamp bead 21 than the second reflective part 61122, and in some embodiments, the area of the first reflective part 61121 accounts for at least five times the area of the first light redirecting wall 6112.
  • the second optical component 62 is removed (the influence of the reflected light of the second optical component 62 is excluded), and after the LED lamp bead 21 is lit, the part of the first light redirecting wall 6112 that is directly lit can be used. It is considered to be the first reflection part 61121 referred to in this embodiment, otherwise it is the second reflection part 61121 .
  • the section shows the cooperation relationship between the first light redirecting wall 6112 and the LED lamp bead 21 .
  • a straight line L one end of which is connected to the center of the front of the LED lamp bead 21, and its other end is tangent to the first light redirecting wall 6112
  • the tangent point of the straight line L and the first light redirecting wall 6112 is O
  • the tangent point O divide the first light redirecting wall 6112 into a first part and a second part
  • the first part is closer to the LED lamp bead 21 than the second part
  • the first part is the first reflection part 61121
  • the second part is the second reflection Part 61122.
  • the ratio of the height H1 of the first part to the height H2 of the second part is between 1 and 1.3, so that the LED lighting device has better uniformity of light output and a better light output angle.
  • the first reflection part 61122 can have a larger area to reflect the direct light of the LED lamp bead 21 (or the first The light redirecting wall 6112 has a larger area for reflecting the direct light emitted by the LED lamp bead 21), so that the reflected light can be emitted more uniformly.
  • it can better control the emitted light of the LED lighting equipment and control its Light angle, reduce glare.
  • the first light redirecting wall 6112 in this embodiment may be arc-shaped.
  • the distance between the two groups of first light redirecting walls 6112 corresponding to the LED lamp bead 21 gradually increases in the direction away from the LED lamp bead 21 on the optical axis of the LED lamp bead 21 , and the increasing range increases. In other words, the gap between the two groups of first light redirecting walls 6112 corresponding to the LED lamp bead 21 is flared or expanded.
  • the value of a ranges from 0.02 to 0.025
  • the absolute value of b ranges from 1.6 to 1.8
  • k is a constant ranging from 5 to 6.
  • the first light redirecting wall 6112 has better reflection of the direct light from the LED lamp bead 21 and the reflected light from the second optical member 62, so that the LED lighting device has more uniformity and Light angle.
  • the section shows the cooperation relationship between the second light redirecting wall 6113 and the LED array 23 .
  • At least a part of the emitted light within the beam angle A range of any one LED bead 21 in the same LED array 23 directly hits the second light redirecting wall 6113 and is reflected by the second light redirecting wall 6113 . That is to say, the boundary line of the beam angle A of any LED bead 21 in the same LED array 23 intersects with the second light redirecting wall 6113 .
  • the second optical component 62 can be configured to have a light diffusion function (for example, the second optical component 62 has a light diffusion function due to its own material properties, such as acrylic material), so as to improve the uniformity of light output.
  • a microarray structure is disposed on the second optical member 62 to redirect light.
  • the optical member 6 in order to make the LED lighting equipment have different light-emitting effects, can also be provided with a third optical element 63 .
  • the third optical component 63 is extended along the length direction of the circuit board 22 , and the third optical component 63 is located in the direction of the optical axis of the LED lamp bead 21 .
  • the third optical member 63 can only be configured to have a reflective function, so as to reflect the light generated by the LED lamp bead 21 to the optical unit 611 (the first light redirecting wall 6112 and the second light redirecting wall 6113 ), and then reflected by the optical unit 611 to the second optical member 62 to emit light, so as to reduce the light intensity near the optical axis of the LED lamp bead 61, so as to improve the uniformity of light emission.
  • the third optical member 63 is configured to have a reflection function and a light transmission function, so as to prevent dark areas from being formed at the third optical member 63 .
  • the third optical member 63 has a first reflective surface 631 and a second reflective surface 632, wherein the first reflective surface 631 corresponds to the first light redirecting wall 6112 on one side, and the second reflective surface 632 corresponds to the first light redirecting wall 6112 on the other side.
  • the first reflective surface 631 and the second reflective surface 632 are arranged symmetrically.
  • the optical axis of the LED lamp bead 21 corresponds or roughly corresponds to the junction of the first reflective surface 631 and the second reflective surface 632 .
  • the distance between the first reflective surface 631 and the surface of the circuit board 22 gradually increases in a direction away from the junction of the first reflective surface 631 and the second reflective surface 632 .
  • the third optical member 63 is a strip structure and corresponds to multiple groups of optical units 611 at the same time.
  • the third hook member 63 passes through the opening provided on the second light redirecting wall 6113 and is erected on the second light redirecting wall 6113 to complete its fixing.
  • the LED lighting device in this embodiment may further include a decoration 7 , which is arranged on the outer edge of the base 1 and covers the outer edge of the optical member 6 .
  • the decorative part 7 can play a decorative role, and can improve the structural strength of the LED lighting equipment.

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Abstract

一种LED照明设备，包括：底座（1），其具有底板（11）及侧壁（12），底板（11）与侧壁（12）之间形成一凹腔；光学构件（3），其罩于底座（1）在LED照明设备的出光方向的一侧；以及光源（2），其设置于底座（1）的凹腔内，光源（2）包括电路板（22）及若干LED阵列（23），LED阵列（23）包括LED灯珠（21），LED灯珠（21）固定于电路板（22）上；光学构件（3）包括光学单元（31），光学单元（31）包括若干第一光学构件（311）及若干与第一光学构件（311）对应的第二光学构件（312）；建立直角坐标系，以电路板（22）的宽度方向上的中心为原点，以LED照明设备的厚度方向为Y轴，以第一光学构件（311）的宽度方向为X轴，第一光学构件（311）的出光面上的任意点符合以下公式：y＝Ax 2+1E-15X-K，其中，A为常数，A的范围为0.048至0.052；E是指数的意思；K为常数，K的范围为9至12。该照明设备可降低眩光，避免形成暗区，提升了LED照明设备点亮时的美观度。

Description

一种LED照明设备 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照明设备。
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、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：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。
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：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；设置格栅时，光损较大，且格栅处易形成暗区，不利于出光。
综上所述，鉴于现有技术的LED照明设备存在的不足和缺陷，如何设计LED照明设备，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照明设备或其中一部分。
本发明实施例提供一种LED照明设备，其特征在于，包括：
底座，其具有底板及侧壁，所述底板与所述侧壁之间形成一凹腔；
光学构件，其整体罩于所述底座在LED照明设备的出光方向的一侧；以及
光源，其设置于所述底座的凹腔内，所述光源包括电路板及若干LED阵列，所述LED阵列包括LED灯珠，所述LED灯珠固定于所述电路板上；
所述光学构件包括光学单元，所述光学单元包括若干第一光学构件及若干与所述第一光学构件对应的第二光学构件，所述LED阵列对应于所述第一光学构件；所述第二光学构件包括一组或多组光学壁，所述光学壁围绕所述第一光学构件而设置；
建立直角坐标系，以所述电路板的宽度方向上的中心为原点，以LED照明设备的厚度方向为Y轴，以所述第一光学构件的宽度方向为X轴，所述第一光学构件的出光面上的任意点 符合以下公式：
y＝Ax 2+1E-15X-K
其中，A为常数，A的范围为0.048至0.052；E是指数的意思；K为常数，K的范围为9至12。
本发明实施例所述第二光学构件的光学壁上的任意点符合以下公式：
y＝ax+L
其中，a为常数，其绝对数的范围为1.35～1.45；L为常数，L的范围为18至22。
本发明实施例在所述LED灯珠的光轴方向上仅具有一层透光材质。
本发明实施例所述LED照明设备的出光效率大于80％。
本发明实施例在所述LED灯珠的光轴方向上仅具有一层热阻层。
本发明实施例所述第一光学构件和所述第二光学构件采用同一层状材质构成。
本发明实施例所述LED照明设备的任意方向上的两组配光曲线的同一角度下的光照强度的比值在0.8至1.2之间。
本发明实施例所述LED照明设备的任意方向上的两组配光曲线的同一角度下的光照强度的比值在0.9至1.1之间。
本发明实施例所述LED照明设备具有一配光曲线，以所述配光曲线的0点作为中心建立坐标系，在0至60度范围内，所述配光曲线上的任意点符合以下公式：
y＝ax 2+bx+K
其中，a为常数，a的范围为-0.3至-0.4；b为常数，b的值为3.5至4；K为常数，K的范围为1600至1700。
本发明实施例所述配光曲线的光束角为100度至110。
本发明实施例提供一种LED照明设备，其特征在于，包括：
底座，其具有底板及侧壁，所述底板与所述侧壁之间形成一凹腔；以及
光源，其设置于所述底座的凹腔内，所述光源包括电路板及若干LED阵列，所述LED阵列包括LED灯珠，所述LED灯珠固定于所述电路板上。
本发明实施例提供一种LED照明设备，其特征在于，包括：
底座；以及
光学构件，其整体罩于所述底座在LED照明设备的出光方向的一侧。
本发明相比现有技术突出且有益的技术效果是：从第二光学构件透过的光的至少一部分可从相邻的第二光学构件处射出，或者从第二光学构件透过的光的至少一部分，经反射后，从该第二光学构件射出，以避免在第二光学构件处形成暗区，从而可提升LED照明设备点亮时的美观度。
附图说明
图1是本发明实施例的LED照明设备的主视示意图；
图2是图1中的A处的放大图；
图3是本发明实施例的LED照明设备的剖视示意图；
图4是图3中B处的放大图；
图5是本发明实施例的LED照明设备的立体示意图；
图6是图1去掉光学构件的示意图；
图7是图6中C处的放大图；
图8是光学构件的立体示意图；
图9是底座的立体示意图；
图10是一实施例中的LED照明设备的立体结构示意图一；
图11是一实施例中的LED照明设备的立体结构示意图二；
图12是一实施例中的LED照明设备的剖视结构示意图；
图13是图12中的D处的放大图；
图14是图12中的E处的放大图；
图15一实施例中的LED照明设备去掉光学构件的立体结构示意图；
图16是一实施例中的光学构件的立体结构示意图；
图17是一实施例中的LED照明设备的剖视结构示意图；
图18是图17中的F处的放大图；
图19是LED灯珠的出光示意图；
图20是LED阵列的出光示意图；
图21是一实施例中的LED照明设备的立体结构示意图；
图22是一实施例中的LED照明设备的剖视结构示意图；
图23是图22中的G处的放大图；
图24是安装结构的局部剖视示意图；
图25是图22中H处的放大图；
图26是一些实施例中的LED照明设备的后视结构示意图一；
图27是一些实施例中的LED照明设备的后视结构示意图二；
图28是一些实施例中的LED照明设备的后视结构示意图三；
图29是一实施例中的LED照明设备的立体结构示意图；
图30是图29中的I处的放大示意图；
图31是一实施例中的LED照明设备的剖视结构示意图；
图32是图31中J处的放大示意图；
图33是一实施例中的LED照明设备的立体结构示意图；
图34是一实施例中的LED照明设备的主视结构示意图；
图35是一实施例中的LED照明设备的剖视图一；
图36是图35中K处的放大图；
图37是一实施例中的LED照明设备的剖视图二，其显示与图35不同方向的剖面；
图38是图37中的L处的放大图；
图39是一实施例中的LED照明设备水平安装并向下出光的局部剖视结构示意图；
图40是一实施例中的LED照明设备水平安装并向下出光的局部剖视结构示意图；
图41是一实施例中的LED照明设备水平安装并向下出光的局部剖视结构示意图；
图42是一实施例中的LED照明设备水平安装并向下出光的局部剖视结构示意图；
图43是一实施例中的LED照明设备水平安装并向下出光的局部剖视结构示意图；
图44是一实施例中的LED照明设备的配光曲线；
图45是一实施例中的LED照明设备的示意图；
图46是一实施例中的LED照明设备的立体结构示意图一，显示LED照明设备的正面；
图47是一实施例中的LED照明设备的立体结构示意图二，显示LED照明设备的背面；
图48是一实施例中的LED照明设备的剖视结构示意图；
图49是图48中M处的放大图；
图50是图46去掉光学构件的立体结构示意图；
图51是图46去掉光重定向单元的立体结构示意图；
图52是图51去掉电源盒的立体结构示意图；
图53是一实施例中的底板的立体结构示意图；
图54是一实施例中的电源的立体结构示意图；
图55是电源电路板与电子元件的配合示意图；
图56是图55的后视图；
图57是一些实施例中的LED照明设备的立体结构示意图；
图58是图57去掉第二光学件的立体结构示意图；
图59是图58中N处的放大图；
图60是图57去掉光学构件的立体结构示意图；
图61是一些实施例中的LED照明设备的剖视结构示意图一；
图62是图61中的P处的放大图；
图63是一些实施例中的LED照明设备的剖视结构示意图二；
图64是图63中的Q处的放大图；
图65是一些实施例中的LED照明设备的立体结构示意图；
图66是图图65去掉第二光学件的立体结构示意图；
图67是一些实施例中的LED照明设备的剖视结构示意图；
图68是图67中O处的放大图；
图69是一些实施例中的LED照明设备的立体结构示意图一；
图70是一些实施例中的LED照明设备的立体结构示意图二；
图71是一些实施例中的LED照明设备的剖视结构示意图一；
图72是图71中的P处的放大图；
图73是图71中Q处的放大图；
图74是一些实施例中的LED照明设备的剖视结构示意图二；
图75是图74中的R处的放大图。
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6所示，本发明实施例中提供一种LED照明设备，该LED照明设备包括：底座1、光源2、光学构件3及电源4。其中光源2与电源4电性连接，光源2设置在底座1上，光学构件3设置于光源2的出光方向。
参见图9，本实施例中的底座1具有底板11及侧壁12，侧壁12设置于底板11的外缘，以在侧壁12及底板11之间形成一凹腔101。光源2设置于该凹腔101内。底座1可采用金属制成，如可采用铁或不锈钢制成，以增加其散热性能。一些实施例中，底座1为一体式结构构成，侧壁12直接相对底板11折弯而形成。一些实施例中，底座1为一体式结构构成，其通过冲压或拉伸而直接形成，使其具有较好的结构强度。一些实施例中，底座1也可采用塑料材质。
参见图6和图7，本实施例中，光源2可直接固定至底座1的底板11上。具体的，光源2包括LED灯珠21和电路板22，其中，LED灯珠21固定在电路板22上，光源2通过电路板22而直接固定至底座1的底板11。一些实施例中，电路板22通过粘接的方式直接固定至底座1的底板11。一些实施例中，光源2可通过电路板22而卡接在底座1的底板11上。一些实施例中，光源2可通过焊接直接固定至底座2的底板11。上述实施例中，光源2均与底座1的底板形成热传导路径，以使LED灯珠21工作时产生的热，可快速热传导至底座1，并通过底座1进行散热，以提高散热效率。参见图7，一些实施例中，电路板22上的LED灯珠21设置有两列。参见图13和图15，一些实施例中，电路板22上的LED灯珠21设置有1列。
参见图12、图13和图15，一实施例中，底座1上可设置有定位单元102，以用于定位光源2。定位单元102包括设于底板11上的条形的凹槽，而光源2的电路板22至少部分或全部容置于凹槽内，以将电路板22的位置相对固定的配置为底板11。另外，于底板11上冲压形成凹槽，相当于在底板11上设置了加强筋，可增加底板11抗挠曲的结构强度。本实施例中，电路板22的厚度尺寸大致与凹槽的深度尺寸相同。电连接单元24可贴覆在底板11上，并与位于凹槽内的电路板22电连接。电连接单元24贴覆于底板11，可压紧电路板22，以限制电路板22的松动。另外，电连接单元24可与底板11固定，例如通过胶或螺丝等进行固定，以此增加其稳定性，防止因电连接单元24的松动，而导致电连接单元24与电路板22的电连接因脱离而失效。
参见图46至图53，一些实施例中，为增加底座1的强度，还可在底座1上设置加强单元1001。加强单元1001可包括若干第一加强结构10011及若干第二加强结构10012，第一加强结构10011和第二加强结构10012可连接。一些实施例中，第一加强结构10011和第二加强结构10012相互间可垂直或大致垂直设置，其中第一加强结构1011沿LED照明设备的长度方向延伸设置。一些实施例中，第一加强结构10011往底座1的背面(未设置光源2的一面)而凸出，同样的，第二加强结构10012往底座1的背面而凸出，于底座1的正面，则第 一加强结构10011和第二加强结构10012连通。第一加强结构10011和第二加强结构10012均可于底座1上一体成型，如采用拉伸或冲压，以使第一加强结构10011和第二加强结构10012往底座1的背面而凸出。并且，第一加强结构10011和第二加强结构10012的壁厚与底座1的其余位置的壁厚大致相同。也就是说，在底板1上未额外设置材料的情况下，通过第一加强结构10011和第二加强结构10012的设置，可提高底座1整体的结构强度。
参见图53，一部分第一加强结构10011形成前述的定位单元102，以用于安装光源2的电路板22，该部分第一加强结构10011具有第一宽度。其中一第一加强结构10011处具有用于设置电源4的区域，该第一加强结构10011具有第二宽度。由于第一加强结构10011于底座1正面呈内凹状，而电源4设置于第一加强结构10011处时，可降低电源4凸出于底座1表面的尺寸，从而减小LED照明设备的整体厚度。其余的第一加强结构10011具有第三宽度。第三宽度的尺寸小于第一宽度的尺寸，第一宽度的尺寸小于第二宽度的尺寸。第三宽度的尺寸大于2.5mm。
参见图53，若干第二加强结构10012则均采用相同或大致相同的宽度。
参见图53，相邻的第一加强结构10011之间的距离为10mm至30mm之间。
参见图1至图3，本实施例中，光学构件3包括光学单元31及安装单元32，安装单元32与底座1对应匹配。具体的，安装单元32与底座1的侧壁12连接。安装单元32可设置于侧壁12的内侧或外侧。本实施例中，安装单元32设置于侧壁12的外侧，以使光学构件3整体罩于底座1在LED照明设备的出光方向的一侧。当LED照明设备安装于天花板时，底座1不外露，用户无法直接看到底座1。光学单元31仅设置一组。
参见图10和图16，一实施例中，安装单元32包括设置于光学构件3上的孔洞303。相应的，底座1上也设置对应孔洞303的孔洞，因此，可通过铆钉穿过光学构件3及底座1相互对应的孔洞，并将光学构件3与底座1固定。
参见图21至图24，一实施例中，安装单元32设置于光学构件3的外缘，并包括一壁部321，壁部321围绕底座1的侧壁12而设置，并设于侧壁12的外侧。壁部321上设置一弯折部3211，弯折部3211在LED照明设备的厚度方向上包覆或抵接侧壁12的端部，因此可通过弯折部3211及光学构件3本身而夹住侧壁12，以使光学构件3固定至底座1上。并且，通过这种固定方式，无需设置紧固件(如螺栓、铆钉等)而将光学构件3与底座1固定，可防止紧固件设置于光学构件3的出光面而影响光学构件3的出光(例如光学构件3的出光面因设置紧固件而造成的局部的暗点)，且可保证光学构件1的外表的完整性及美观度。
光学构件3采用塑料材质成型。当光学构件3套于底座1外时，可通过热压使光线构件3的壁部321变形，以形成弯折部3211，从而完成固定。
其他实施例中，光学构件3套于底座1外时，壁部321与底座1的侧壁12也可通过卡扣、紧固件等进行固定。
上述通过光学构件3的壁部321设置于侧壁12外侧并固定的方式，可简化结构，以此减小灯具的边框，提升美观度及出光效果，减小因边框而造成的暗区。
安装单元也可为单独的构件构成。如图69至图72所示，安装单元8包括支撑件81，支撑件81围绕光学构件9和/或底座1的外缘而设置，以提供对光学构件9及底座1的支持，从而提高整灯的结构强度。换句话讲，支撑件81构成了LED照明设备的外侧的边框。
支撑件81包括第一壁811，第一壁811在LED照明设备的厚度方向上贴覆于光学构件9的表面，且光学构件9的边缘处的壁901被夹持在支撑件81及底座1的侧壁12往外侧延伸的端壁121之间。
支撑件81可进一步包括第二壁812，第二壁812上具有一止挡部8121。端壁121上具有迫撑件1211，迫撑件1211卡入止挡部8121与第一壁811之间形成的空间，并使光学构件9的边缘处的壁901被压紧在端壁121与第一壁811之间，以完成三者的固定。换句话讲，当底座1与支撑件81配合时，迫撑件1211以过盈的方式卡入第一壁81及止挡部8121之间，从而完成固定。且迫撑件1211受止挡部8121及第一壁811之间的压迫时，使端壁121压紧光学构件9的边缘处的壁901，从而将底座1、光学单元2及支撑件81固定为一体。
端壁121具有与光学构件9的边缘处的壁901贴合的第一部分1212及不与光学构件9的边缘处的壁901的第二部分1213，第二部分1213至第一壁812的距离小于第一部分1212至第一壁812的距离。也就是说，第二部分1213与第一壁811之间由于不设置光学构件9的边缘处的壁901，第二部分1213与第一壁811会具有一定的间隙，因此，在将迫撑件1211通过外力卡入止挡部8121与第一壁811之间时，与迫撑件1211连接的第二部分1213具有向第一壁812变形的空间，以方便迫撑件卡入止挡部8121与第一壁811之间。且第二部分1213的设置，可使迫撑件1211卡入止挡部8121与第一壁811之间时的变形发生在迫撑件1211及第二部分1213，防止因变形集中发生在迫撑件1211时而导致迫撑件1211损坏或无法正常卡入止挡部8121与第一壁811之间。
迫撑件1211的端部抵于止挡部8121，而迫撑件1211的主体部分则至少一部分可与第二壁812之间保持间隙，从而可使迫撑件1211可具有足够的弹性形变，以对止挡部8121保持足够的力，防止迫撑件1211从止挡部8121与第一壁811之间滑脱。
迫撑件1211的端部与第二壁812的距离最近，而迫撑件1211在往端壁121方向上，迫撑件1211与第二壁812的距离逐渐增加。
支撑件81可以是钣金成型，例如是通过薄片状材料通过折弯而形成。支撑件81也可以是通过挤出成型的型材。
支撑件81设置有多组，相邻的支撑件81之间可通过焊接固定。
在LED照明设备的厚度方向上，支撑件81不超出光学构件9所限定的空间，因此，支撑件81不会额外占用LED照明设备的厚度尺寸。当LED照明设备安装至水平面，且向下出光时，支撑件81的第一壁811的下表面可与光学构件9的下表面平齐或大致平齐。
参见图1至图4，本实施例中的光学单元31包括若干第一光学构件311(透光部件)，光源2工作时产生的光可从第一光学构件311透过。光源2包括若干LED阵列23，LED阵列23包括至少一个LED灯珠21。本实施例中，每个LED阵列23包括多个LED灯珠21。LED 阵列23对应于第一光学构件311，也就是说，LED阵列23与第一光学构件311一一对应配置，两者设置有相同的数量。其他实施例中，也可设置为第一光学构件311的数量大于LED阵列23的数量。
本实施例中，LED陈列23中LED灯珠21仅对应于第一光学构件311，也就是说，LED陈列23中的灯珠21完全被第一光学构件311覆盖。LED阵列23中的LED灯珠21工作时产生的光至少一部分从第一光学构件311射出。具体的，本实施例中，第一光学构件311具有一出光面3111，该出光面3111与LED阵列23的LED灯珠21之间具有间距，LED灯珠21工作时产生的光从出光面3111射出。
参见图6和图7，本实施例中，LED阵列23的多个LED灯珠21沿一第一方向设置。第一光学构件311(或出光面3111)沿第一方向延伸设置。
参见图1至图4，本实施例中，出光面3111具有一沿第一方向延伸设置的主体部31111及位于主体部31111的第一方向上的两端的端部31112。其中，主体部31111的截面(在出光面3111宽度方向上的截面)形状为弧形，而端部31112配置为一弧形面，从而使得出光面3111具有更好的出光效果。另外，弧形面相比平面，LED灯珠21发出的光射至弧形面时，光反射减少，可提高出光效率，从而增加光效。并且，出光面3111相对第二光学构件312更靠近LED灯珠21，LED灯珠21工作时，出光面3111处相比第二光学构件312具有更高的温度，因此，出光面3111采用弧形，可提升结构强度，受热时，具有更佳的抗形变性能。在其他实施例中，出光面3111也可配置为一球形面或一平面。
在一实施例中，第一光学构件311配置为具有光扩散功能，以增加光源2的出光角度，同时避免光线集中，而造成视觉的不舒适性。一实施例中，第一光学构件311以其自身的材料属性而具有光扩散功能，如采用塑料或亚克力材质。一实施例中，第一光学构件311在其表面涂覆扩散涂层或设置扩散膜(图未示)，以使其具有光扩散功能。
参见图1和图2，本实施例中，光学单元31还具有若干与第一光学构件311对应的第二光学构件312(防眩光部件)，第二光学构件312配置为反射至少一部分从第一光学构件311射出的光，并且从第一光学构件311射出的至少一部分光从第二光学构件312透过。从第二光学构件312透过的光的至少一部分可从相邻的第二光学构件312处射出，或者从第二光学构件312透过的光的至少一部分，经反射后，从该第二光学构件312射出，以避免在第二光学构件312处形成暗区，从而可提升LED照明设备点亮时的美观度。另外，第二光学构件312反射至少一部分从第一光学构件311射出的光，其起到一定的挡光作用，可降低眩光。
参见图4，本实施例中，在第一光学构件311宽度方向的截面上，第一光学构件311具有一底部的中点3113，此处的底部指的是LED照明设备正常安装至水平面且向下出光时于第一光学构件311的底部位置。如图所示，此处的中点3113指的是第一光学构件311于其宽度方向上的截面处的中点。第二光学构件312在LED照明设备的高度方向的截面上具有一近端3123及一远端3124，其中，近端3123相比远端3124更靠近与之相配的光源2。远端3124为第二光学构件312在LED照明设备的高度方向上的最底端。中点3113与远端3124的连线 与LED照明设备的下端面(第二连接壁314所在平面)的夹角a为10度至45之间。进一步的，中点3113与远端3124的连线与LED照明设备的下端面(第二连接壁314所在平面)的夹角a为25度至35度之间。以此，可遮蔽一部分从第一光学构件311的直接出光，降低眩光。需要注意的是，以上的位置关系，如中点、近端及远端等位置关系，均是建立在图4所展示的剖视图上。
第二光学构件312包括一组或多组光学壁3121，光学壁3121配置为具有反射及透光的功能。光学壁3121围绕第一光学构件311而设置。本实施例中，一组第二光学构件312具有4组光学壁3121，4组光学壁3121依次连接，且光学壁3121配置为平面。一些实施例中，一组第二光学构件312可仅具有一组光学壁3121，该光学壁3121的截面形状为环形。光学壁3121可为一斜面，其相对底板11而倾斜设置。如图10和图16所示，一实施例中，相邻的光学壁3121之间平滑过渡，如采用圆弧过渡，以避免在相邻的光学壁3121之间的夹角处形成暗区，且可使相邻的光学壁3121之间处具有更好的反射效果。
参见图4，本实施例中，相邻的第二光学构件312的光学壁3121通过一第一连接壁313连接。从第二光学构件312透过的光的至少一部分从第一连接壁313射出，以避免在第一连接壁313处形成暗区。第一连接壁313的厚度大于光学壁3121的厚度，已提供更好的连接强度，并且，光学壁3121更薄的设置，使得光学壁3121处具有更少的光损。
参见图1和图8，本实施例中，第二光学构件312上可设置加强结构316，以提升结构强度。具体的，相邻的第二光学构件312的光学壁3121之间设置加强结构316。也就是说，相邻的第二光学构件312之间的光学壁3121通过加强结构316连接。本实施例中，加强结构316为一薄壁结构。
参见图1和图5，本实施例中，光学单元31还包括第二连接壁314，安装单元32与相邻的第二光学构件312之间通过第二连接壁314连接，从第二光学构件312透过的光的至少一部分从第二连接壁314射出，以避免在第二连接壁314处形成暗区。
参见图12和图14，一些实施例中，第二连接壁314与端壁13毗邻。并且，第二连接壁314的表面大致同端壁13平齐，以增加美观性。本实施例中，端壁13处设置一内凹部131，第二连接壁314置于内凹部131处，以此使得第二连接壁314的表面同端壁13平齐或大致平齐。
本实施例中的第一光学构件311和第二光学构件312的壁厚分别小于第一连接壁313或第二连接壁314的壁厚。第一光学构件311主要用于光源2的出光(壁厚过厚将会增加光损)，第二光学构件312主要用于反射和透光(壁厚过厚将会增加光损)，而第一连接壁313和第二连接壁314主要用于结构连接，需保证强度，因此上述的壁厚设置，可分别满足光学和结构上的要求。
本实施例中，光学构件3为一体式结构构成。
参见图1至图6，本实施例中，光学构件3具有对应于底座1的底板11的第一区域301，及对应于侧壁12的第二区域302。其中，第二区域302配置为用于与侧壁12进行连接。具 体的，第二区域302配置前述的安装单元32。本实施例中，LED照明设备工作时，光源2被点亮，第一区域301的至少80％的区域具有光线射出，以获得较为均匀的出光。进一步的，LED照明设备工作时，光源2被点亮，第一区域301的至少90％的区域具有光线射出，以获得较为均匀的出光。更进一步的，LED照明设备工作时，光源2被点亮，第一区域301上的区域均具有光线射出，以获得均匀的出光。
本实施例中，第一区域301可包括前述的第一光学构件311、第二光学构件312、第一连接壁313及第二连接壁314。
参见图6和图7，本实施例中的电路板22可设置多组，每组电路板22上可设置一组或多组LED阵列。本实施例还包括一电连接单元24，不同电路板22上的LED灯珠21之间通过电连接单元24实现电连接。一些实施例中，电连接单元24采用导线。一些实施例中，电连接单元24采用柔性电路板，且柔性电路版直接与电路板22焊接固定，具体的，电连接单元24贴覆于电路板22上，并直接与多组电路板22焊接，从而实现电性连接。一些实施例中，电连接单元24采用PCB板进行连接。
参见图5，本实施例中，光学单元31可设置多组，例如2组或4组。相邻的光学单元31之间通过第三连接壁315连接。第三连接壁315与底板11之间形成容置空间，电源4设置于该容置空间内。由于电源4设置于LED照明设备内部，相比将电源4设置于底座1外部，电源4不会占用LED照明设备的额外的高度空间，可降低LED照明设备的高度。本实施例中，LED照明设备的高度小于35毫米。进一步的，LED照明设备的高度小于30毫米。更进一步的，LED照明设备的高度为20毫米至30毫米之间。
参见图46至图53，一实施例中，第三连接壁315的宽度与第一连接壁313的宽度的差值不超过15mm、12mm、10mm或8mm。当第三连接壁315的宽度与第一连接壁313的宽度的差值控制在上述范围内时，可使光学构件3的整体的一致性较好，提高视觉效果。
参见图46至图53,电源4沿LED照明设备的长度方向延伸设置。并且，电源4可设置于LED照明设备的宽度方向上的中部区域。因电源4本身具有一定的结构强度，其设置于底座1时，可进一步增加底板1的结构强度。电源4位于对应的两组第二光学构件312的相应的光学壁3121之间的位置。
电源4包括电源电路板41及电子元件42，电子元件42设置于电源电路板41上，电源电路板41可直接或间接的贴覆于底座1的正面。
电源4可进一步包括电源盒43，电源盒43设于底座1的正面，且电源盒43与底座1之间形成容置空间，以用于容纳电源电路板41及电子元件42。
电源4设置于两组光源2之间。电源盒43的外侧设置光重定向单元431，以将光源2射至电源盒43处的光线重定向并最终从LED照明设备射出，减小电源4对光线的吸收，提供出光效率。光重定向单元431配置有反射和或光扩散功能。
一些实施例中，电源盒43的外表面直接形成光重定向单元431。
而本实施例中，电源盒43的外侧设置一单独的构件，以形成光重定向单元431。电源盒 43的长度配置为占LED照明设备的长度的一半以下。而光重定向单元431的长度则大于电源盒43的长度。进一步的，光重定向单元431长度方向的一端与底座1的一侧的侧部配合(相抵)，而另一端则与底座1的另一侧的侧部配合(相抵)。光重定向单元431的上述设置，可防止电源43的设置，造成对光学构件3的局部出光的影响。
参见图46至图53，光重定向单元431与光学构件3之间保持间距，该间距中形成光通道1002。间距的最小值为2.5mm。也就是说，光重定向单元431上任意点至光学构件3上的任意点的距离大于或等于2.5mm。而间距过小的话，则会影响光线在光通道1002内的反射和漫射。光重定向单元431上任意点至光学构件3上的任意点的最近距离则不超过12mm，以利于LED照明设备整体尺寸的控制。
参见图46至图53，光通道1002包括第一光通道10021及与之连通的第二光通道10022。其中第一光通道10021形成于光重定向单元431的侧面4311与第二光学构件312的光学壁3121之间。光重定向单元431的侧面4311与第二光学构件312的光学壁3121之间平行或大致平行设置。第二光通道10022则形成于光重定向单元431的顶面4312与第三连接壁313之间。光重定向单元431的顶面4312与第三连接壁313之间平行或大致平行设置。本实施例中，光重定向单元431的侧面4311与第二光学构件312的光学壁3121之间的间距小于光重定向单元431的顶面4312与第三连接壁313之间的间距，以利于更多的光可通过第二光通道10022而从第三连接壁313射出，以减小第三连接壁313处形成的暗区。
电子元件42具有长度尺寸、宽度尺寸和高度尺寸。参见图52，电子元件42中，至少具有两种不同种类的电子元件42，其长度尺寸大于宽度尺寸，电子元件42的长度方向沿电路板22的长度方向延伸设置，以此可降低电源4整体所需设置的宽度。这两种不同类型的电子元件42可包括电解电容、变压器。电子元件42中，至少一部分电子元件42(电子元件42为电容、IC或电阻等)，其长度尺寸大于宽度尺寸，且电子元件42的长度方向沿电路板22的宽度方向延伸设置，以此可降低电源4整体所需设置的长度，有利于电源4长度尺寸的控制。电子元件42中，至少一部分电子元件42(如变压器、电容或电阻)，其高度尺寸小于宽度尺寸，而电子元件42的高度方向沿电路板22的厚度方向设置，以此可降低电源4整体的高度，以减小因电源4的设置而造成对出光的影响。
参见图52，图54至图56，一实施例中，电源4的长度尺寸占LED照明设备的长度尺寸的五分之一以上。一实施例中，电源4的长度尺寸占LED照明设备的长度尺寸的五分之二以上。本处所指的电源4的尺寸可以是电源电源板41的长度(电源电路板41于电路板22的长度方向上的尺寸)，也可以是电源4于电路板22的长度方向上的最两侧的电子元件42之间所占用的尺寸(该尺寸包括这两个电子元件42本身)。以此，可使电源4分布于底座1上更广的区域，以对应多大的底座1的面积，以利于散热性能的提升。
参见图52，图54至图56，电源电路板41具有第一面411和第二面412，其中第一面411为贴覆或对应于电源盒43底部的一面，而电源盒43的底部则贴覆于底座1上，而第二面412则为电源电路板41相对第一面411的另一面。本实施例中，第一面411和第二面412上均设 置有电子元件42。其中，第一面411上的电子元件42中包括一个或多个发热元件4111(例如电阻、IC)，第一面411上的发热元件4111工作时产生的热，可更快速的传递到电源盒43，并通过底座1进行散热。第一面411上的至少一个发热元件4111可热接触电源盒43的底部，以形成热传导路径，从而提升散热效率。一些实施例中，第一面411上的任意一电子元件42与电源盒43的底部的距离不超过4mm或3.5mm，以此可使电子元件42与电源盒43底部之间的热传递效率更高。
一些实施例中，电源盒43采用金属材质，以利于更快速的将发热元件4111工作时产生的热传递至电源盒43，再传递至底座1。
参见图52，图54至图56，第一面411上设置导热材料4112，而导热材料4112为高导热系数材料(如现有技术中的铁、铝、铜、锡等材质，或是以上述材质为主的合金)，或者导热材料4112的导热系数至少大于电源电路板41的导热系数。例如导热材料4112采用锡或导热胶，而电源电路板41采用玻纤板或环氧树脂板等非金属板材时，导热材料4112的导热系数即大于电源电路板41的导热系数。第二面412上的电子元件42包括发热元件4121(例如变压器、电感、IC)，第二面412上的发热元件4121与导热材料4112形成热传导路径。一些实施例中，第二面412上的发热元件4121通过其导电引脚而与所述导热材料4112连接，并形成热传导路径。导热材料4112可通过热辐射或热传导的方式将热传递至电源盒43底部。
参见图52，图54至图56，一些实施例中，第一面411上的电子元件42(特别是发热元件4111)的数量多于第二面412上的电子元件42(特别是发热元件4111)，由于第一面411上的电子元件42距离电源盒43更近，可更快速的进行散热，以提升电源4整体的散热效率。
参见图52，图54至图56，一些实施例中，电源电路板41的第二面412上，单位长度(例如每10mm长度)上设置的电子元件42的数量小于1、0.9、0.8或0.7个。以此在电源电路板41宽度受限的情况下(宽度过大后，随着电源盒43的相应增大，会影响出光)，可控制电子元件42在电源电路板41长度方向上的设置密度，以利于电子元件42之间的间距控制，从而可减小电子元件42(特别是发热元件)之间相互的热影响。除此之外，透过发热元件的配置设计，也能进一步达到减少热影响的效果，例如当电源电路版41同一面(第一面411/第二面412)上包括多个在工作过程中产生高温的电子元件42，即可配置为在同一面上会产生高温的电子元件42彼此不相邻设置，例如间格穿插设置其他电子元件42(例如电容等发热较小且不易受到热影响的元件)，以此方式进一步减少因电子元件42产生的高温对灯具运作时的影响。
参见图10至图14，一实施例中，电源4也可设置于底板11的背面，此时，便无需在光学单元31上设置容置空间，即无需设置第三连接壁315(如图3和图5所示)，使得光学单元31的连续性更好，提升出光效果及外形的美观度。
一实施例中，底座1上进一步设置端壁13，端壁13形成于底座1的外缘，并与侧壁12连接。端壁13与底板11平行或大致平行设置。侧壁12与端壁13形成容置空间(端壁13与底板11之间具有高低落差，电源4至少部分配置于该高度落差内)，电源4高度方向上至少 部分位于容置空间内，以此减小电源4占LED照明设备的高度空间。
一实施例中，电源4的高度方向上的至少一半位于容置空间内。电源4的长度尺寸占底座1的长度尺寸的80％、85％、90％或95％以上，以此，电源4可增加底座1的长度方向上的结构强度。
参见图21至图24，一实施例中，电源设置于底座1与光学构件3之间。具体的，底座1表面往外(往底座1背面)凸设形成凸部103，凸部103于底座1的正面形成凹形部104，电源可部分或全部位于凹形部104内。进一步的，底座1上可设置一盖体105，盖体105盖设于凹形部104处，从而在凹形部104与盖体105之间形成容置空间106。电源位于容置空间106内部。盖体105凸设于底座1的正面，因此，容置空间106的体积是大于凹形部104的体积。
上述实施例中，电源无需在额外设置单独的电源盒，可简化结构，节约成本。
如图26和图27所示，一些实施例中，凸部103设置有一组。当两组LED照明设备背对背叠置时，将其中一组LED照明设备转动一定角度(如90度、180度或270度)，则两组LED照明设备的凸部103错位设置，以使两组LED照明设备背对背叠置时，其总高度小于单组LED照明设备的高度的2倍。因此，两组或多组LED照明设备以上述方法叠置时，可减小包装尺寸，降低运输成本。本实施例中，在LED照明设备背面建立坐标系，以LED照明设备的中心为原点，则凸部103可完全位于其中一个象限内(如图27所示)，或完全位于两个象限内(如图26所示)。
如图28所示，一些实施例中，凸部103设置有两组，两组凸部103之间具有间隙107。两组凸部103可沿同一方向延伸设置，例如沿LED照明设备的长度或宽度方向上。当两组LED照明设备背对背叠置时，将其中一组LED照明设备旋转90度，两组LED照明设备的凸部103错位设置，以使两组LED照明设备背对背叠置时，其总高度小于单组LED照明设备的高度的2倍，而间隙107的设置，可防止两组LED照明设备背对背叠置，两组凸部103相互的干涉。本实施例中，间隙107位于底座1的中心处，且其在凸部103的延伸方向上的尺寸大于凸部103的宽度尺寸。
如图25、图29和图30所示，本实施例中，凸部103位于LED照明设备(底座1)的长度或宽度方向上中间位置，以使LED照明设备整体大致上为对称结构。本实施例中，通过一组盖体105分别与两组凹形部104配合。盖体105上设置有插接壁1051，而底座1上相应的设置插接孔108，将盖体105上的插接壁1051插入底座1的插接孔108时，便可将盖体105固定至底座1。
LED灯珠21与盖体105的距离控制在大于15mm。另外，盖体105的侧壁与底座1的表面的夹角a可控制在大于120度。以此，可防止或减小盖体105对LED灯珠21出光的影响。
请参见图14，一实施例中的LED照明设备还可包括挂撑件5，挂撑件5配置为用于将LED照明设备安装至天花板的支架(俗称龙骨)上。挂撑件5可采用金属材质，如铜或铁等。挂撑件5的一端固定于端壁13上，另一端可相应进行弯折，以将其挂至支架上。
本实施例中，在LED照明设备的高度方向上，第一光学构件311的高度最多不超过第二光学构件的高度的一半。以减少从第一光学构件311的侧向直接从LED照明设备射出的光线。也就是说，从第一光学构件311射出的光，会更多的被第二光学构件312重新定向，以调整LED照明设备的出光。
参见图14，图17至图20，LED阵列23的LED灯珠21，其光束角为A，光束角的定义(光强达到法线光强的50％处、两边所形成的夹角为光束角)为现有技术，此处不再赘述。可选的，光束角A的取值可在100至130度之间。LED灯珠21于光束角A边界为范围而投射至第一光学构件311的内表面，并于第一光学构件311的内表面上形成投射区域m(投射区域m为曲面或平面或其他不规则的面)，投射区域m的面积大于500平方毫米。为避免LED灯珠21点亮时，于第一光学构件311上形成颗粒感，在不考虑邻近的LED灯珠21的影响的情况下，投射区域m上的光照强度要小于50000勒克斯。
投射区域m的面积大小取决于LED灯珠21至第一光学构件311的距离。当该距离越大时，则光学单元3的厚度则越大(会造成整灯厚度提升)，其不利于成本的控制，而该距离越小时，则可能使投射区域m面积小于500平方毫米，使得照度不易控制，并形成颗粒感。因而，本实施例中，将LED灯珠21至第一光学构件311的距离控制在6至15毫米之间。并且，在不考虑邻近的LED灯珠21的影响的情况下，投射区域m上的光照强度要大于10000勒克斯。当投射区域m非平面时，可将LED灯珠21表面中心于光束角A范围内至第一光学构件311的最短距离作为上述欲控制的距离。
LED灯珠21的光通量为L。在LED阵列23中的LED灯珠21仅设置一排的情况下，同一LED阵列23的LED灯珠21于第一光学构件311内表面上的投射区域m可有部分重叠。考虑到不同LED灯珠21的投射区域m于第一光学构件311内表面上的叠加，任意一投射区域m内的任意位置的照度不超过5L/m，以防止LED灯珠21的投射区域m叠加时形成强光。一实施例中，任意一投射区域m内的任意位置的照度不超过4L/m，以防止LED灯珠21的投射区域m叠加时形成强光。一实施例中，任意一投射区域m内的任意位置的照度不超过3L/m，以防止LED灯珠21的投射区域m叠加时形成强光。一实施例中，任意一投射区域m内的任意位置的照度不超过2L/m，以防止LED灯珠21的投射区域m叠加时形成强光。
影响LED灯珠21的投射区域m叠加的因素之一有LED灯珠21之间的距离。一实施例中，将LED灯珠21之间的中心距控制在大于4mm或4.5mm以上。
一实施例中，LED阵列23中的LED灯珠的数量为n个，任意一投射区域m的任意区域所叠加的投射区域m的数量小于等于n。一实施例中，LED阵列23中的LED灯珠的数量为n个，任意一投射区域m的任意区域所叠加的投射区域m的数量小于n。
第一光学构件311内表面上的总投射区域面积为M。作为示例，以图20作为说明，当LED阵列23具有两颗LED灯珠21，两颗LED灯珠21的投射区域m有重叠，则第一光学构件311内表面上的总投射区域面积为M为两颗LED灯珠21与第一光学构件311内表面的投射区域m的边界构成，即总投射区域M的面积为两颗LED灯珠21于第一光学构件311内表 面的投射区域m的面积之和再减去重叠区域的面积。
光束角A的光轴附近的发光强度大于光束角A边界区域的发光强度，即单看一投射区域m，其范围内的光照强度并不均匀。因此，可进行如下设置，即第一光学构件311内表面上的总投射区域面积M中，有30％、35％、或40％以上区域具有至少两组投射面积m的叠加，以提升总投射面积M内的光照的均匀性。但为了避免过多的投射区域m的叠加，并造成光照强度的不均匀，可将第一光学构件311内表面上的总投射区域面积M中，设置不超过25％、20％或18％的区域具有4组或以上的投射面积m的叠加。
基于以上，本实施例在仅设置1光学单元(不设置透镜)的情况下，可实现出光的均匀性，简化了结构，降低了材料成本。
如图21、图31和图32所示，一实施例中，第一光学构件311内(第一光学构件311与底座1的表面之间)形成第一腔体3001，相邻的第二光学构件312之间形成第二腔体3002。第一光学构件311在其长度方向上连接至第二光学构件312的光学壁3121，并且使第一腔体3001和第二腔体3002连通。当LED灯珠21发光时，至少部分光线经过底座1和第一光学构件311的反射后，进入到第二腔体3002，并从相应的光学壁3121和/或第一连接壁313透出，以提升光学构件3的出光效果。
如图33至图38所示，一实施例中，第一光学构件311内(第一光学构件311与底座1的表面之间)形成第一腔体3001，相邻的第二光学构件312之间形成第二腔体3002。第一光学构件311在其长度方向和宽度方向与第二光学构件312的光学壁3121均不连接(不直接连接)，因此，第一腔体3001和第二腔体3002不连通(不包含因装配间隙的情况下造成的连通，本处的装配间隙小于5mm，均可视为第一腔体3001和第二腔体3002不连通)，可减少光源2工作时发生的光在第一腔体3001内反射而进入第二腔体3002的光，以使光源2工作时发出的光更加集中的透过第一光学构件311射出。如图36和图38所示，换句话讲，第一光学构件312的端部(以图36和图38来讲，即第一光学构件312的下部)与底座1的底板11的间距不超过5毫米、4毫米、3毫米、2毫米或1毫米，以减少光源2发出的光从第一光学构件312与底板11的间隙漏出。一实施例中，第一光学构件312的端部(以图36和图38来讲，即第一光学构件312的下部)与底座1的底板11至少部分贴合，以进一步减少漏光。
在一实施例中，底板11上设置有定位槽111，而光源2在其高度方向上至少部分容置于定位槽111内。换言之，光源2的电路板22的厚度方向上至少部分容置于定位槽111内。电路板22的表面不超出定位槽111(即电路板22的厚度方向上完全容置于定位槽111内)时，第一光学构件312的端部3112(以图36和图38来讲，即第一光学构件312的下部)可直接贴覆于底板11上。当电路板22的厚度方向上的一部分容置于定位槽111内时，则第一光学构件312的端部3112(以图36和图38来讲，即第一光学构件312的下部)抵于电路板22的表面，此时，第一光学构件312的端部3112(以图36和图38来讲，即第一光学构件312的下部)与底板11保持间距，该间距可以是电路板22露于定位槽111外部部分的高度。
在一实施例中，光学壁3121具有反射的功能，可将从第一光学构件311射出的部分光线 反射，以减小LED照明设备在第一光学构件311的侧向方向上的出光，从而可减小眩光。本实施例中，在第一光学构件311的宽度方向上的截面上，光学壁3121与LED灯珠21的光轴呈一锐角A。光学壁3121与LED灯珠21的光轴间所呈的锐角A的角度为30至60度。光学壁3121包括对应第一光学构件311的长度方向的壁部及对应第一光学构件311的宽度方向的壁部，光学壁3121对应第一光学构件311的长度方向的壁部及对应第一光学构件311的宽度方向的壁部与LED灯珠21的光轴的角度均在前述的锐角A的范围内。在一实施例中，第一光学构件311的宽度方向上对应的两组光学壁3121之间的夹角小于LED灯珠21的光束角，以起到挡光作用，并以此减小眩光值。并且，第一光学构件311的宽度方向上对应的两组光学壁3121之间的夹角(即前述锐角A的两倍)大于70度，以防止过度限制LED照明设备的出光角度。
图39显示一实施例中的LED照明设备水平安装并向下出光的局部剖视结构示意图，其显示第一光学构件311的宽度方向上的截面。本实施例中，在第一光学构件311的宽度方向上的截面上，第二光学构件312的光学壁3121具有下端点，下端点沿一方向延伸并形成一直线，该直线L1与第一光学构件311的外表面相切，该直线L1与水平面(即LED照明设备的出光面，当LED照明设备沿水平安装时，其出光面与水平面平行或大致平行)之间的夹角B大于10度、12度、14度、16度或18度。一实施例中，直线L1与水平面(即LED照明设备的出光面，当LED照明设备沿水平安装时，其出光面与水平面平行或大致平行)之间的夹角B在15至25度范围内。一实施例中，直线L1与水平面(即LED照明设备的出光面，当LED照明设备沿水平安装时，其出光面与水平面平行或大致平行)之间的夹角B在18至20度范围内。当人眼与第一光学构件311(或LED照明设备)处于一定位置时(人眼至第一光学构件311的连线与LED照明设备的出光面的角度C小于前述的夹角B时)，人眼将不会直接观测到来自第一光学构件311的直接的出光，因此可减小眩光。从另一角度讲，设置一直线L，该直线L的一端与光学壁3121的下端点连接，而其另一端则与第一光学构件311的外表面相切，直线L与水平面(即LED照明设备的出光面，当LED照明设备沿水平安装时，其出光面与水平面平行或大致平行)之间的夹角B大于10度、12度、14度、16度或18度。一些实施例中，直线L1与水平面之间的夹角B在15至25度范围内。一些实施例中，直线L1与水平面之间的夹角B在18至20度。范围内本实施例中的光学壁3121的截面形状可不设置为平直状，只要其下端点的位置满足上述需求，即可起到减小眩光的作用。
图40显示一实施例中的LED照明设备水平安装并向下出光的局部剖视结构示意图，其显示第一光学构件311的长度方向上的截面。本实施例中，在第一光学构件311的长度方向上的截面上，第二光学构件312的光学壁3121具有下端点，下端点沿一方向延伸并形成一直线，该直线L与第一光学构件312的外表面相切，该直线L2与水平面(即LED照明设备的出光面，当LED照明设备沿水平安装时，其出光面与水平面平行或大致平行)之间的为夹角D。该夹角D的值小于夹角B的值。一些实施例中管，夹角D的值大于10度、11度、12度或13度。一实施例中，夹角D的值在10至20度范围内。一实施例中，夹角D的值在12至 16度范围内。当人眼与第一光学构件311(或LED照明设备)处于一定位置时(人眼至第一光学构件311的连线与LED照明设备的出光面的角度E小于前述的夹角D时)，人眼将不会直接观测到来自第一光学构件311的直接的出光，因此可减小眩光。从另一角度讲，设置一直线L2，该直线L2的一端与光学壁3121的下端点连接，而其另一端则与第一光学构件311的外表面相切，直线L2与水平面(即LED照明设备的出光面，当LED照明设备沿水平安装时，其出光面与水平面平行或大致平行)之间的夹角D在10至20度范围内。一些实施例中，夹角D的值在12至16度范围内。本实施例中的光学壁3121的截面形状可不设置为平直状，只要其下端点的位置满足上述需求，即可起到减小眩光的作用。
图41显示一实施例中的LED照明设备水平安装并向下出光的局部剖视结构示意图，其显示第一光学构件311的宽度方向上的截面。本实施例中，在第一光学构件311的宽度方向上的截面上，对应于LED灯珠21的第二光学构件312的两组光学壁3121均具有下端点，LED灯珠21的出光面的中心分别与两组光学壁3121的下端点的连线L3、L4之间的夹角为F，该夹角F的值大于LED灯珠21的光束角A(LED灯珠21光强达到法线光强的50％处、两边所形成的夹角为光束角A)的0.8倍，以防止光学壁3121过多的对LED灯珠21的出光形成遮挡，而造成光损，进而降低出光效率。一些实施例中，该夹角F的值小于LED灯珠21的光束角A(LED灯珠21光强达到法线光强的50％处、两边所形成的夹角为光束角A，本处的光束角A的值大约是120度左右)的1.2倍，以确保光学壁3121具有一定的挡光作用，以起到降低眩光的作用。
图42显示一实施例中的LED照明设备水平安装并向下出光的局部剖视结构示意图，其显示第一光学构件311的长度方向上的截面。本实施例中，在第一光学构件311的长度方向上的截面上，具有对应于该第一光学构件311的LED阵列23，而第二光学构件312的两组光学壁3121对应于设置于该第一光学构件311内的LED阵列23，两组光学壁3121均具有下端点，对应于第一光学构件311的LED阵列23中的任意一LED灯珠21的出光面的中点与两组光学壁3121的下端点的连线L5、L6之间的夹角为G，该夹角G的值大于LED灯珠21的光束角A(LED灯珠21光强达到法线光强的50％处、两边所形成的夹角为光束角A，本处的光束角A的值大约是120度左右)的0.8倍，以防止光学壁3121过多的对LED灯珠21的出光形成遮挡，而造成光损，进而降低出光效率。一些实施例中，该夹角G的值小于LED灯珠21的光束角A(LED灯珠21光强达到法线光强的50％处、两边所形成的夹角为光束角A)的1.2倍，以确保光学壁3121具有一定的挡光作用，以起到降低眩光的作用。
图43显示一实施例中的LED照明设备水平安装并向下出光的局部剖视结构示意图，其显示第一光学构件311的宽度方向上的截面，且该截面截于第一光学构件311的长度方向的主体部上31111。建立直角坐标系，以电路板22的宽度方向上的中心为原点，以LED照明设备的厚度方向为Y轴，以第一光学构件311的宽度方向为X轴。第一光学构件311的出光面3111上的任意点符合以下公式：
y＝Ax 2+1E-15X-K
其中，A为常数，A的范围为0.048至0.052；E是指数的意思(exponent)；K为常数，K的范围为9至12。
当第一光学构件311的出光面3111上的任意点符合上述公式时，可使LED灯珠21安装于电路板22(安装于电路板22的宽度方向上的中部位置)后，LED灯珠21的光束角更好的对应第一光学构件311的出光面3111(宽度方向上)，使得出光面3111上具有均匀的光分布。
另外，在上述坐标系中，第二光学构件312的光学壁3121上的任意点符合以下公式：
y＝ax+L
其中，a为常数，其绝对数的范围为1.35～1.45；L为常数，L的范围为18至22。
当第二光学构件312的光学壁3121上的任意点符合上述公式时，光学壁3121可更好的对射至光学壁3121的光学重新定向，以调整光分布，并且可改善眩光。
一实施例中，在LED灯珠21的光轴方向(出光方向)上仅具有一层热阻层(即光学构件3)，当LED灯珠21工作时，其产生的热量的至少部分辐射至热阻层，并通过该热阻层向外散热。相比LED灯珠21需透过多组热阻层(现有技术通常设置灯罩、透镜、扩散板或导光板中的至少两组，以达到均匀出光的效果，但上述构件均构成热阻层)往光轴方向向外散热，其散热效率提高。
一实施例中，在LED灯珠21的光轴方向(出光方向)上仅具有一层透光材质(即光学构件3)，当LED灯珠21工作时，其产生的光射至透光材质，并透过透光材质后从LED照明设备射出。相比LED灯珠21需透过多组透光材质(现有技术通常设置灯罩、透镜、扩散板或导光板中的至少两组，以达到均匀出光的效果，但上述构件均会造成一定的光损)往光轴方向向外出光，其出光效率提高。一些实施例中，LED照明设备的出光效率大于80％、85％或90％。此处的出光效率指的是从LED照明设备射出的光通量与LED灯珠21产生的总的光通量的比值。
一实施例中，LED照明设备的透光部件(第一光学构件311)和防眩光部件(第二光学构件312)采用同一层状材质构成，且为一体式的构件。
一实施例中中，为控制LED照明设备的眩光，及提升LED照明设备的光束角内的出光均匀性，而设计一种LED照明设备的配光曲线(配光曲线表示LED照明设备水平安装后的个角度的出光角度)。本实施例中，LED照明设备大致为方形时(例如其为两尺)，或可理解为前述任一实施例所描述的灯具结构，其配光曲线大致为轴向对称(又称旋转对称，指各个方向上的配光曲线都是基本对称或相同)。换句话讲，任意方向上的两组配光曲线的同一角度下的光照强度(单位为cd)的比值在0.8至1.2之间。进一步的，任意方向上的两组配光曲线的同一角度下的光照强度(单位为cd)的比值在0.9至1.1之间。更进一步的，任意方向上的两组配光曲线的同一角度下的光照强度(单位为cd)的比值在0.95至1.05之间。也就是说，任意方向上的两组配光曲线的同一角度下的光照强度的比值在上述范围内时，即可认为LED照明设备的各个方向上的配光曲线都是基本对称或相同的。作为示例的，图44示出C0和C90平面下的配光曲线，其中C0平面下的配光曲线为A，C90平面下的配光曲线为B， 配光曲线A与配光曲线B中同一角度下的光照强度的比值在0.8至1.2,0.9至1.1或0.95至1.05之间。其中C0平面为垂直于LED照明设备的出光面且穿过LED照明设备的一方向上中心线的平面，而此处的一方向平行于电路板的长度延伸方向。C90平面则为垂直于C0平面，且穿过LED照明设备的另一方向上的中心线的平面，此处的另一方向垂直于电路板的长度延伸方向。为进一步说明C0平面及C90平面，请参见图45，图45显示LED照明设备的背面的示意图，图45中，A0-A0平面即为C0平面，而B90-B90平面为C90平面。附图45中的横向方向为电路板的设置方向。
由于LED照明设备大致为方形时(例如其为两尺)，其配光曲线大致为轴向对称，各个方向上的配光曲线都是基本对称或相同，因此，本实施例以C0平面的配光曲线作为示例。如图44所示，本实施例中提出一种配光曲线，以解决LED照明设备的眩光及光束角内的出光均匀性。以配光曲线的0点作为中心建立坐标系，在0至60度范围内，所述配光曲线上的任意点符合以下公式：
y＝ax 2+bx+K
其中，a为常数，a的范围为-0.3至-0.4；b为常数，b的值为3.5至4；K为常数，K的范围为1600至1700。
本实施例中C0平面的配光曲线，其光束角为100度至110度之间。而C0平面的0度角两侧的配光曲线大致对称。在0至60度范围内，当配光曲线上的任意点满足上述公式时，可使得LED照明设备在光束角内具有相对均匀的出光，且良好的眩光控制。
继续参照图44，以配光曲线的0点作为中心建立坐标系，在-30至30度范围内，所述配光曲线上的任意点符合以下公式：
y＝ax 2+1E-13x+K
其中，a为常数，a的范围为-0.25至-0.27；E是指数的意思(exponent)；K为常数，K的值为1600至1720之间。
在-30至30度范围内，当配光曲线上的任意点满足上述公式时，可使得LED照明设备在-30度至30度范围内具有较高的光照强度，以满足该角度范围内的光分布需要。
本实施例中，可通过前述的结构设计以实现上述的光分布曲线的设计。
如图69至图75所示，一实施例中提供一种光学构件9，可应用于本发明的LED照明设备中。本实施例中的光学构件9的基本结构大致同前述实施例(如图1至图56实施例所示的光学构件)。具体的，光学构件9(光学单元91)同样也包括第一光学构件911和第二光学构件912，其中，第一光学构件911罩设于对应的LED阵列23的出光方向上，即第一光学构件911与LED阵列23一一对应配置，两者设置有相同的数量。作为示例的，于本实施例中，LED照明设备的外形尺寸为2尺乘2尺(603mm*603mm)，光学单元91的数量设置为16组。
于本实施例中，从每组光学单元91发出的光通量的范围为250流明至350流明。于本实施例中，从光学单元91射出的光通量中，至少50％以上从第一光学构件911直接射出(不经过第二光学构件912的反射)，以减小因第二光学构件912的反射而造成的光损，从而保证出 光效率。现有技术中的灯具经过两层光学介质后，其出光效率通常不高于75％，而本实施例中的LED照明设备，至少50％的光通量仅通过一层光学介质(第一光学构件911)，其整体的出光效率可高于80％。此处的出光效率指的LED照明设备射出的光通量与所有LED灯珠21产生的光通量的总和的比值。
于本实施例中，第一光学构件911的结构也可大致同前述实施例中的第一光学构件911。
于本实施例中，第二光学构件912包括围绕第一光学构件911而设置的光学壁。光学壁包括两组第一光重定向壁9121及两组第二光重定向壁9122。第一光重定向壁9121配置于电路板22的宽度方向的两侧，而第二光重定向壁9122配置于电路板22的长度方向上。第一光重定向壁9121及第二光重定向壁9122均可配置有反射和/或透光功能。
于本实施例中，LED灯珠21的光束角为A(光束角的定义同前述)。LED阵列23包括多颗LED灯珠21，多颗LED灯珠21沿电路板22的长度方向排成一列。第二光学构件912的两组第一光重定向壁9121之间的夹角a大于LED灯珠21的光束角A，因此，即使LED灯珠21的光经过第一光学构件911的光处理(例如光扩散)，也可减少LED灯珠21射出的光线在第一光重定向壁9121的发射，从而降低光损。在一实施例中，第二光学构件912的两组第一光重定向壁9121之间的夹角a与LED灯珠21的光束角A之间的差值不超过30度，以使第一光重定向壁9121对足够的光线(从LED灯珠21射出的光线)作反射，以使LED照明具有较均匀的光分布及较好的眩光控制。
于本实施例中，第二光学构件912的两组第二光重定向壁9122之间的夹角b小于LED灯珠21的光束角A及两组第一光重定向壁9121之间的夹角a。因此，第二光重定向壁9122可反射LED阵列23中更多的LED灯珠21的出光，以降低LED照明设备在LED阵列23的LED灯珠21设置方向上的眩光，另外也使第一光重定向壁9121对足够的光线(从LED灯珠21射出的光线)作反射，以使LED照明具有较均匀的光分布。在一些实施例中，第二光学构件912的两组第二光重定向壁9122之间的夹角b小于90°、85°、80°或75°。
于本实施例中，LED阵列23中具有10颗以上LED灯珠21(例如14颗)，其中，至少有2颗、4颗或6颗LED灯珠23的光束角A范围内的出光对应到第二光重定向壁9122。换句话说，在不考虑第一光学构件91的光扩散的作用时，至少有2颗、4颗或6颗LED灯珠23的光束角A范围内的出光会射到第二光重定向壁9122上，以降低眩光，并使光学单元91具有更好的光分布。
如图57至图64所示，一些实施例中，LED照明设备可具有不同的光学构件，以获得不同的出光效果。也就是说，图57至图60实施例中的LED照明设备基本结构同前述实施例(即底座、电源和光源等的结构相同或基本相同)，所不同的是，替换了不同的光学构件。如图57至图60所示，本实施例中，光学构件6包括第一光学件61及第二光学件62，其中，第一光学件61罩设于底座1上，并配置为对至少一部分光源2发出的光进行重定向，而第二光学件62设置于第一光学件61上，并配置有光线透过、光扩散、光折射或光反射等功能中的其中一个或多个。
第一光学件61上设置若干光学单元611，光学单元611对应于光源2的LED阵列23。具体的，光学单元611包括出光孔6111，出光孔6111使与其对应的LED阵列23露出于光学单元611。也就是说，在LED阵列23的LED灯珠21的光轴方向上，光学单元611不会形成遮挡，不会造成因光线经过不同介质时造成的光损。
光学单元611贴覆于光源2的电路板22的表面，以使LED灯珠21的光轴方向上，电路板22与出光孔6111的外缘的壁部之间不存在间隙，以防止光进入该间隙而造成光损。一些实施例中，光学单元611与光源2的电路板22的表面的间距小于1mm(电路板22表面与出光孔6111的外缘的壁部之间于LED灯珠21的光轴方向上的间距小于1mm)，以此可减少光线进入电路板22与出光孔6111的外缘的壁部之间的间隙，从而控制光损。
光学单元611包括第一光重定向壁6112及第二光重定向壁6113，其中，第一光重定向壁6112配置于电路板22的宽度方向的两侧，而第二光重定向壁6113配置于电路板22的长度方向上，且位于LED阵列23的两侧。第一光重定向壁6112及第二光重定向壁6113均可配置有反射和/或透光功能。
第二光学件62覆盖于第一光学件61后，形成一由第一光重定向壁6112、第二光重定向壁6113及第二光学件62组成的光学腔，LED灯珠21工作时产生的光，最终从第二光学件62射出。本实施例中，LED阵列23(光源2)工作时产生的光通量的至少50％仅经过一种光学层(不包括空气)而从LED照明设备射出，可降低因经过多重光学层时造成的光损，提高出光效率。
第一光重定向壁6112具有第一反射部61121及第二反射部61122，其中第一反射部61121配置为用于反射LED灯珠21直接的出光，而第二反射部61122配置为仅用于反射二次光(LED灯珠21直接的出光经反射后投射至第二反射部61122的光)。配置上，第一反射部61121相较第二反射部61122更接近灯珠21的位置，而在一些实施例中，第一反射部61121的面积占第一光重定向壁6112的面积的至少五分之一以上，以避免LED灯珠2的出光经较小面积的第一反射部61121反射后，光线过于集中，易造成出光的不均匀。在本实施例中，取下第二光学件62(排除第二光学件62的反射光的影响)，LED灯珠21点亮后，第一光重定向壁6112被直接点亮的部分即可认为是本实施例所指的第一反射部61121，反之则为第二反射部61121。
如图61和图62所示，在LED照明设备的截面上，该截面显示第一光重定向壁6112与LED灯珠21的配合关系。一直线L，其一端与LED灯珠21的正面的中心连接，而其另一端与第一光重定向壁6112相切，直线L与第一光重定向壁6112的切点为O，切点O将第一光重定向壁6112分为第一部分及第二部分，第一部分相比第二部分更靠近LED灯珠21，第一部分即为第一反射部61121，第二部分即为第二反射部61122。在图62中，第一部分的高度H1与第二部分的高度H2的比值为1至1.3之间，以使LED照明设备具有较佳的出光均匀性及较佳的出光角度。具体的，第一部分的高度H1与第二部分的高度H2的比值在上述范围时，一方面可使第一反射部61122具有较大的面积来反射LED灯珠21的直接的出光(或第一光重定向壁6112具有较大部分的面积用于反射LED灯珠21直接的出光)，以使反射的光更加 均匀的射出，另一方面，可更好的控制LED照明设备的出光，控制其出光角度，减小眩光。
本实施例中的第一光重定向壁6112可呈弧形。LED灯珠21对应的两组第一光重定向壁6112之间的距离在LED灯珠21光轴上远离LED灯珠21的方向上逐渐递增，其递增的幅度增加。换句话说，LED灯珠21对应的两组第一光重定向壁6112之间呈扩口状或扩张状。
如62所示，当LED照明设备沿水平安装，且LED灯珠21的光轴竖直向下时，建立直角坐标系，以LED灯珠21的出光面的中心为原点，以电路板22的宽度方向为Y轴，以LED照明设备的厚度方向为Y轴。第一光重定向壁6112上的任意点满足以下公式：
y＝ax2+bx+k
其中，a的值的范围在0.02至0.025之间，b的值的绝对值的范围为1.6至1.8之间，k为常数，其范围为5至6之间。
当满足上述公式时，第一光重定向壁6112具有更好的针对LED灯珠21直射的光及来自第二光学件62的反射的光的反射，使得LED照明设备具有更加的出光均匀性及出光角度。
如图63和图64所示，在LED照明设备的截面上，该截面显示第二光重定向壁6113与LED阵列23的配合关系。同一LED阵列23中的任意一LED灯珠21的光束角A范围内的出光的至少一部分直射至第二光重定向壁6113，并被第二光重定向壁6113反射。也就是说，同一LED阵列23中的任意一LED灯珠21的光束角A的边界线与第二光重定向壁6113相交。因此，一方面，同一LED阵列23中的任意一LED灯珠21的光束角范围内的出光的至少一部分被第二光重定向壁6113遮挡，从而可降低眩光，另一方面，通过第二光重定向壁6113的反射，可优化整体的出光，使得出光分布更加合理。
一些实施例中，第二光学件62可配置为具有光扩散功能(例如第二光学件62以其自身的材料属性而具有光扩散功能，如采用亚克力材质)，以提高出光的均匀性。一些实施例中，第二光学件62上设置微阵列结构，以起到重定向光的作用。
如图65至图68所示，一些实施例中，为使LED照明设备具有不同的出光效果，光学构件6还可设置第三光学件63。第三光学件63沿电路板22的长度方向延伸设置，且第三光学件63位于LED灯珠21的光轴方向上。一些实施例中，第三光学构件63可仅配置为具有反射功能，以将LED灯珠21工作时产生的光学反射至光学单元611(第一光重定向壁6112及第二光重定向壁6113)，再通过光学单元611反射至第二光学件62进行出光，以此可降低LED灯珠61光轴附件的光强，以利于提高出光均匀性。一些实施例中，第三光学构件63配置为具有反射功能及透光功能，以防止在第三光学构件63处形成暗区。
第三光学构件63具有第一反射面631和第二反射面632，其中第一反射面631对应于其中一侧的第一光重定向壁6112，第二反射面632对应于另一侧的第一光重定向壁6112。第一反射面631和第二反射面632呈对称设置。
LED灯珠21的光轴对应于或大致对应于第一反射面631和第二反射面632的交界处。第一反射面631在远离第一反射面631和第二反射面632的交界处的方向上，其与电路板22的表面的距离逐渐增大。
第三光学构件63为条状结构，且同时对应于多组光学单元611。并且第三挂钩想构件63穿过开设于第二光重定向壁6113上的开孔，并架设于第二光重定向壁6113，已完成其固定。
本实施例中的LED照明设备还可包括一装饰件7，装饰件7设置于底座1的外缘，且覆盖光学构件6的外缘。装饰件7可起到装饰作用，并且可提高LED照明设备的结构强度。
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 (12)

  1. 一种LED照明设备，其特征在于，包括：
    底座，其具有底板及侧壁，所述底板与所述侧壁之间形成一凹腔；
    光学构件，其整体罩于所述底座在LED照明设备的出光方向的一侧；以及
    光源，其设置于所述底座的凹腔内，所述光源包括电路板及若干LED阵列，所述LED阵列包括LED灯珠，所述LED灯珠固定于所述电路板上；
    所述光学构件包括光学单元，所述光学单元包括若干第一光学构件及若干与所述第一光学构件对应的第二光学构件，所述LED阵列对应于所述第一光学构件；所述第二光学构件包括一组或多组光学壁，所述光学壁围绕所述第一光学构件而设置；
    建立直角坐标系，以所述电路板的宽度方向上的中心为原点，以LED照明设备的厚度方向为Y轴，以所述第一光学构件的宽度方向为X轴，所述第一光学构件的出光面上的任意点符合以下公式：
    y＝Ax 2+1E-15X-K
    其中，A为常数，A的范围为0.048至0.052；E是指数的意思；K为常数，K的范围为9至12。
  2. 根据权利要求1所述的LED照明设备，其特征在于：所述第二光学构件的光学壁上的任意点符合以下公式：
    y＝ax+L
    其中，a为常数，其绝对数的范围为1.35～1.45；L为常数，L的范围为18至22。
  3. 根据权利要求1所述的LED照明设备，其特征在于：在所述LED灯珠的光轴方向上仅具有一层透光材质。
  4. 根据权利要求3所述的LED照明设备，其特征在于：所述LED照明设备的出光效率大于80％。
  5. 根据权利要求1所述的LED照明设备，其特征在于：在所述LED灯珠的光轴方向上仅具有一层热阻层。
  6. 根据权利要求1所述的LED照明设备，其特征在于：所述第一光学构件和所述第二光学构件采用同一层状材质构成。
  7. 根据权利要求1所述的LED照明设备，其特征在于：所述LED照明设备的任意方向上的两组配光曲线的同一角度下的光照强度的比值在0.8至1.2之间。
  8. 根据权利要求7所述的LED照明设备，其特征在于：所述LED照明设备的任意方向上的两组配光曲线的同一角度下的光照强度的比值在0.9至1.1之间。
  9. 根据权利要求1所述的LED照明设备，其特征在于：所述LED照明设备具有一配光曲线，以所述配光曲线的0点作为中心建立坐标系，在0至60度范围内，所述配光曲线上的任意点符合以下公式：
    y＝ax 2+bx+K
    其中，a为常数，a的范围为-0.3至-0.4；b为常数，b的值为3.5至4；K为常数，K的范围为1600至1700。
  10. 根据权利要求9所述的LED照明设备，其特征在于：所述配光曲线的光束角为100度至110。
  11. 一种LED照明设备，其特征在于，包括：
    底座，其具有底板及侧壁，所述底板与所述侧壁之间形成一凹腔；以及
    光源，其设置于所述底座的凹腔内，所述光源包括电路板及若干LED阵列，所述LED阵列包括LED灯珠，所述LED灯珠固定于所述电路板上。
  12. 一种LED照明设备，其特征在于，包括：
    底座；以及
    光学构件，其整体罩于所述底座在LED照明设备的出光方向的一侧。
PCT/CN2022/115343 2021-09-10 2022-08-29 一种led照明设备 WO2023035992A1 (zh)

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JP2016058284A (ja) * 2014-09-10 2016-04-21 パナソニックＩｐマネジメント株式会社 照明装置
CN204592956U (zh) * 2015-04-29 2015-08-26 厦门福鑫德进出口贸易有限公司 透镜、led光源及格栅灯
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