WO2021068826A1 - Led配光结构、光源模组及灯具 - Google Patents

Led配光结构、光源模组及灯具 Download PDF

Info

Publication number
WO2021068826A1
WO2021068826A1 PCT/CN2020/119239 CN2020119239W WO2021068826A1 WO 2021068826 A1 WO2021068826 A1 WO 2021068826A1 CN 2020119239 W CN2020119239 W CN 2020119239W WO 2021068826 A1 WO2021068826 A1 WO 2021068826A1
Authority
WO
WIPO (PCT)
Prior art keywords
ring
led
light distribution
light source
center
Prior art date
Application number
PCT/CN2020/119239
Other languages
English (en)
French (fr)
Inventor
刘超博
王洪波
卫庆军
Original Assignee
苏州欧普照明有限公司
欧普道路照明有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN201910954428.2A external-priority patent/CN110645486A/zh
Priority claimed from CN201921677858.6U external-priority patent/CN210372914U/zh
Application filed by 苏州欧普照明有限公司, 欧普道路照明有限公司 filed Critical 苏州欧普照明有限公司
Priority to EP20875190.9A priority Critical patent/EP3971466A4/en
Publication of WO2021068826A1 publication Critical patent/WO2021068826A1/zh
Priority to US17/561,699 priority patent/US11668439B2/en

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F21K9/20—Light sources comprising attachment means
    • F21K9/23—Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings
    • F21K9/232—Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings specially adapted for generating an essentially omnidirectional light distribution, e.g. with a glass bulb
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F21K9/20—Light sources comprising attachment means
    • F21K9/23—Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings
    • F21K9/238—Arrangement or mounting of circuit elements integrated in the light source
    • 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
    • F21V14/00—Controlling the distribution of the light emitted by adjustment of elements
    • F21V14/02—Controlling the distribution of the light emitted by adjustment of elements by movement of 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
    • F21V5/00—Refractors for light sources
    • F21V5/04—Refractors for light sources of lens 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
    • F21V5/04—Refractors for light sources of lens shape
    • F21V5/046—Refractors for light sources of lens shape the lens having a rotationally symmetrical shape about an axis for transmitting light in a direction mainly perpendicular to this axis, e.g. ring or annular lens with light source disposed inside the ring
    • 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
    • F21V7/0058—Reflectors for light sources adapted to cooperate with light sources of shapes different from point-like or linear, e.g. circular 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
    • F21V7/0091—Reflectors for light sources using total internal reflection
    • 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
    • F21Y2103/00—Elongate light sources, e.g. fluorescent tubes
    • F21Y2103/30—Elongate light sources, e.g. fluorescent tubes curved
    • F21Y2103/33—Elongate light sources, e.g. fluorescent tubes curved annular
    • 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
    • F21Y2105/00—Planar light sources
    • F21Y2105/10—Planar light sources comprising a two-dimensional array of point-like light-generating elements
    • F21Y2105/12—Planar light sources comprising a two-dimensional array of point-like light-generating elements characterised by the geometrical disposition of the light-generating elements, e.g. arranging light-generating elements in differing patterns or densities
    • 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

  • This application relates to the technical field of inductor manufacturing, and in particular to an LED light distribution structure, a light source module and a lamp.
  • Lamps are an indispensable lighting equipment in people's lives, and with the development of society, the functions of lamps have gradually evolved from a single indoor lighting to more functions such as decoration and rendering, which continue to enrich people's living environment.
  • LEDs light-emitting diodes
  • LED manufacturers usually set one LED or several LEDs on a small chip substrate to form an LED chip. Lamp manufacturers only need to attach the LED chip to the light source board of the lamp to connect the LED. Into the circuit.
  • the LED emits light in a spherical shape, the angle of light is fixed, and the lighting effect is single.
  • the related technology usually installs light components outside the LED to distribute the light of the LED.
  • Early light distribution elements are usually single light distribution elements, that is, each LED or LED chip has an independent revolving light distribution element, and the LED chip is located in the middle of the revolving light distribution element to make the light spot circular.
  • One way is to directly change the light distribution configuration of the light distribution element, which is extremely costly.
  • the light output angle can be adjusted without changing the light distribution element by changing the distance between the LED chip and the light distribution element (Z-axis distance).
  • a ring-shaped light distribution element was gradually developed.
  • One light distribution element can simultaneously distribute light for multiple circularly arranged LED chips, and can also form a circular light spot.
  • the LED chip is usually arranged at the center line of the light source cavity of the ring light distribution element.
  • the above-mentioned method of changing the distance between the LED chip and the light distribution element (Z-axis pitch) is also commonly used. Way to achieve.
  • the embodiments of the present application provide an LED light distribution structure, a light source module, and a lamp to solve the above-mentioned problems.
  • an embodiment of the present application provides an LED light distribution structure, including a ring-shaped light distribution element and a plurality of LED chips;
  • the ring-shaped light distribution element is provided with a ring-shaped light source cavity, the light source cavity having a ring center and a center line surrounding the ring center in a ring shape;
  • a plurality of the LED chips are arranged in a ring in the light source cavity, the LED chips include LEDs and a chip substrate, and the LEDs are arranged on the chip substrate;
  • the LEDs on all the LED chips are uniformly arranged along a ring-shaped row of wiring, the ring-shaped row of wiring is arranged in a concentric ring with the center line, and the ring-shaped row of wiring is located inside or outside of the center line.
  • the chip substrate has a center, and the LED is at the center or not at the center.
  • the LED is not at the center, and the center of the chip substrate is at the center line.
  • the center of the chip substrate is inside or outside the center line.
  • the chip substrate has a horizontal axis and a vertical axis that pass through the center and are perpendicular to each other, and the horizontal axis and the vertical axis divide the chip substrate into four quadrants. , At least most of the LEDs are in one of the quadrants.
  • neither the horizontal axis nor the vertical axis is perpendicular to the line from the ring center to the center.
  • all the LED chips have the same posture relative to the ring center in the circumferential direction.
  • the LED chip includes a plurality of LEDs, and the plurality of LEDs are all arranged on the chip substrate.
  • the ring-shaped light distribution element is a ring-shaped refractive lens or a ring-shaped total reflection lens.
  • an embodiment of the present application provides a light source module, including a light source board and the LED light distribution structure;
  • the LED chips are arranged on the light source board, and the ring-shaped light distribution element is covered on the light source board.
  • an embodiment of the present application provides a lamp including a lamp body and at least one of the light source module, the light source module being disposed on the lamp body.
  • the LED light distribution structure, light source module, and lamp provided by the embodiments of the present application can adjust the light output angle while maintaining the circular spot by changing the position of the LED relative to the centerline of the light source cavity. In this way, there is no need to add structural parts between the light source plate and the light distribution element, so the structure can be greatly simplified.
  • FIG. 1 is a top view assembly view of the LED light distribution structure with the center d on the center line b and the LED chip is rotated about the center d as the axis to the ring-shaped wiring c1 and c2 located outside the center line b according to an embodiment of the application;
  • FIG. 2 is a top view assembly view of the LED light distribution structure with the center d on the center line b and the ring-shaped wiring c located outside the center line b according to an embodiment of the application;
  • Figure 3 is a cross-sectional view of Figure 2;
  • Fig. 4 is a light distribution curve diagram of the LED light distribution structure provided in Fig. 2;
  • FIG. 5 is a top view assembly view of the LED light distribution structure with the center d and the ring-shaped wiring c located inside the center line b according to the embodiment of the application;
  • Figure 6 is a cross-sectional view of Figure 5;
  • FIG. 7 is a light distribution curve diagram of the LED light distribution structure provided in FIG. 5;
  • FIG. 8 is a top view assembly view of the LED light distribution structure with the center d and the ring-shaped wiring c located outside the center line b provided by the embodiment of the application;
  • Figure 9 is a cross-sectional view of Figure 8.
  • FIG. 10 is a light distribution curve diagram of the LED light distribution structure provided in FIG. 8;
  • FIG. 11 is a top view assembly view of the LED light distribution structure with the center d on the center line b and the ring-shaped wiring c located inside the center line b according to an embodiment of the application;
  • Figure 12 is a cross-sectional view of Figure 11;
  • FIG. 13 is a light distribution curve diagram of the LED light distribution structure provided in FIG. 11;
  • FIG. 14 is a structural view of an LED chip including multiple LEDs provided by an embodiment of the application.
  • Fig. 15 shows two postures of the LED chip provided by the embodiment of the application.
  • 1-Ring-shaped light distribution element 10-light source cavity, 12-light distribution part, 120-light-incident surface, 122-light-emitting surface, 124-total reflection surface, 2-LED chip, 20-LED, 22-chip substrate;
  • the embodiment of the present application discloses an LED light distribution structure, as shown in FIGS. 1 to 15, including a ring-shaped light distribution element 1 and a plurality of LED chips 2.
  • the ring-shaped light distribution element 1 is provided with a ring-shaped light source cavity 10, and the light source cavity 10 has a ring center a and a center line b surrounding the ring center in a ring shape.
  • the ring-shaped light distribution element 1 also has a light distribution portion 12, which is arranged around the light source cavity 10, and the interface between the light distribution portion 12 and the light source cavity 10 is the light incident surface 120 of the light distribution portion 12, and the light passes through the light incident surface After 120 enters the light distribution portion 12, the light path can be adjusted by means of refraction or reflection, and finally the light exits from the light exit surface 122 that is substantially opposite to the light entrance surface 120.
  • the radial cross section of the light source cavity 10 and the light distribution portion 12 is an axisymmetric structure, and the axis intersects perpendicularly with the center line b.
  • the ring-shaped light distribution element in this embodiment may be a ring-shaped refractive lens or a ring-shaped total reflection lens.
  • the difference between the two types of lenses is mainly in the structure of the light distribution portion 12.
  • the light distribution part 12 of the toroidal refractive lens distributes light by the principle of light refraction of a concave lens or a convex lens, and the light distribution part 12 of the toroidal total reflection lens adds a total reflection surface 124 on the basis of refraction, so it can present a different The light distribution effect of the annular refractive lens.
  • a plurality of LED chips 2 are arranged in a ring shape in the light source cavity 10.
  • the LED chip 2 includes an LED 20 and a chip substrate 22, and the LED 20 is arranged on the chip substrate 22.
  • the LEDs 20 on all the LED chips 2 are uniformly arranged along the circular row of wiring c.
  • the circular row of wiring c and the center line b are arranged in a concentric ring.
  • the circular row of wiring c may be located inside the center line b ( See Figures 2, 3, 5, 6, 11, 12), or it may be outside the midline b (see Figures 1, 7, 8).
  • the ring-shaped wiring c will be inside the center line b.
  • the light distribution part 12 will have a polarization effect on the light of the LED 20, and the light emitted by the LED 20 will be more of the light distribution part 12 It emits to the side away from the ring center a, so the overall LED light distribution structure can have a larger light emitting angle. Conversely, when the light output angle needs to be reduced, the ring-shaped wiring c will be outside the center line b. At this time, the light emitted by the LED 20 will be more emitted by the light distribution part 12 to the side toward the ring center a, so the LED The light distribution structure as a whole can have a smaller light output angle.
  • the LED chips 2 of the above-mentioned LED light distribution structure can be directly arranged on the light source board (not shown in the figure), and the ring-shaped light distribution element 1 can be covered
  • the corresponding light distribution effect can be realized on the light source board, and there is no need to add other structural components in the module structure. Therefore, compared with the adjustment structure in the related art, the LED light distribution structure provided in this embodiment can simplify the light source.
  • the structure of the module is not shown in the figure.
  • the chip substrate 22 usually has a center d.
  • the center d may refer to the geometric center of the chip substrate 22. When the chip substrate 22 is round, square or other similar shapes, it has a geometric center. In addition, the center may also refer to the center of various forms such as the size center and the vertical center of the chip substrate.
  • the center d is usually set at the position of the center line b of the light source cavity 10 in the related art.
  • its LED 20 may be located at the aforementioned center d or not at the aforementioned center d.
  • different structure forms can be adopted.
  • the center d of the chip substrate 22 may be on the center line b.
  • the LED 20 will be in an eccentric position. Rotating the LED chip 2 about the center d as the axis, the LED 20 will rotate around the center d, thereby realizing the adjustment of the position of the LED 20. At this time, it is only necessary to control all the LEDs to be in the same circular row of wiring c to realize the adjustment of the light output angle.
  • LED chooses OSRAM3030, by rotating the LED chip 2 about the center d as the axis, the beam angle can be set from 60° ( Figure 4) to 86° ( Figure 4). 13) Adjust within the scope.
  • the position of the entire LED chip 2 can be directly adjusted so that the center d of the chip substrate 22 is inside or outside the center line b, while keeping the original posture of the LED chip 2 unchanged. It is still possible to adjust the position of the LED 20. Moreover, this adjustment method can also be applied to the case where the LED 20 is not located at the center d of the chip substrate 22 (see FIGS. 2 to 10).
  • the LED20 on the LED chip 2 is all on the side of the chip substrate 22 away from the center d, by adjusting the LED
  • the position of the chip 2 can be adjusted within the range of 54° ( Figure 10) to 70° ( Figure 7).
  • the beam angle can be adjusted within the range of 54° to 86°.
  • the above two adjustment methods can also be applied to the LED chip 2 whose LED 20 is not at the center d of the chip substrate 22, that is, on the one hand, the position of the center of the chip substrate 22 is changed so that it is at the center line b.
  • the LED chip 2 is also rotated around the center d as the axis to further change the position of the LED 20. In this way, a larger angle adjustment range can be expected.
  • the light source board In order to coordinate the position adjustment or rotation of the LED chip 2, it is usually necessary to adjust the bonding pads of the light source board and the LED chip 2 accordingly, and adjust the position or posture to be consistent with the LED chip 2.
  • the light source board may not be able to use a single adjustment method to adjust the pads, and the solution of applying two adjustment methods at the same time gives the light source board more wiring options. , Is conducive to reasonable wiring of the light source board, and reduces the difficulty of wiring and the processing of the light source board.
  • the LED 20 can either be rotated clockwise until it is in the circular row of wiring c, or it can be rotated counterclockwise until it is in the circular row.
  • Wire c to form two different postures (see Figure 15). Although the distance between the LED 20 and the ring center a or the center line b is the same in these two postures, the position of the spot formed by the LED 20 will also be offset due to the position difference in the circumferential direction of the ring. These shifts may cause uneven brightness distribution of the overall spot.
  • the postures of all the LED chips 2 in the circumferential direction relative to the ring center a are kept consistent. In this way, while changing the position of the LED 20 relative to the ring center a or the center line b, all the LEDs 20 can move the same distance along the circumferential direction in the same direction to ensure that their spacing does not change, thereby ensuring uniform brightness distribution.
  • the chip substrate 22 of the LED chip 2 has a horizontal axis e and a vertical axis f that cross the center d and are perpendicular to each other.
  • the horizontal axis e and the vertical axis f separate the chip substrate 22 into four quadrants, and the LED chip 2
  • the number of LEDs 20 contained in it can be only one, or it can also contain multiple LEDs at the same time. Regardless of the solution, for the LED 20 as a whole, at least most of the LEDs 20 are in one of the quadrants, and a small part of the LEDs 20 may be in other adjacent or even opposite quadrants.
  • This kind of LED chip 2 can be based on the horizontal axis e and the vertical axis f, which is more convenient for technicians to adjust the position of the LED 20. As shown in FIG. 1, in some embodiments, the horizontal axis e and the vertical axis f may not be perpendicular to the line from the ring center a to the center d, but at a certain angle (see FIG. 1).
  • the LED chip 2 contains multiple LEDs 20, these LEDs 20 can be in the same circular row of wiring c, but it is more likely that the LEDs 20 in the same position are in the same circular row of wiring c, and the LEDs 20 in different positions are located in the same circular row of wiring c.
  • the light source module provided in this embodiment can be installed on the lamp body when it is installed inside the lamp.
  • multiple light source modules can be arranged in a planar array or a concentric ring in the same lamp at the same time.
  • the light source boards of these light source modules can be independent or integrated into a whole.
  • the LED light distribution structure, light source module, and lamp provided in the embodiments of the present application can greatly simplify the structure.

Abstract

本申请实施例公开了一种LED配光结构、光源模组及灯具。LED配光结构包括环形配光元件以及多颗LED芯片；环形配光元件具备环形的光源腔，光源腔具有环心以及呈环形围绕环心的中线；多颗LED芯片呈环形排布在光源腔内，LED芯片包括LED以及芯片基板，LED设置在芯片基板上；所有LED芯片上的LED统一沿环形排布线排布，环形排布线与中线呈同心环排布，环形排布线处于中线的内侧或外侧。光源模组包括光源板以及LED配光结构；LED芯片排布在光源板上，环形配光元件罩设在光源板上。灯具包括灯体以及至少一个光源模组，光源模组设置在灯体上。本申请实施例所提供的LED配光结构、光源模组及灯具可以大幅简化结构。

Description

LED配光结构、光源模组及灯具 技术领域
本申请涉及电感制造技术领域，尤其涉及一种LED配光结构、光源模组及灯具。
背景技术
灯具是人们生活中不可或缺的一种照明设备，并且随着社会的发展，灯具的功能也从单一的室内照明逐步发展出了装饰、渲染等更多功能，不断丰富着人们的生活环境。
随着技术的进步，现代灯具的发光元件已经逐步脱离灯丝和白炽灯，普遍采用LED(发光二极管)作为发光元件。为了便于灯具厂商组装，LED生产厂家通常将一个LED或几个LED设置在一片小型的芯片基板上，形成LED芯片，灯具厂商只需将LED芯片贴合在灯具的光源板上便可将LED接入电路。
由于LED为球形出光，出光角度固定，照明效果单一。为了使灯具呈现出所需的照明角度、聚光程度等照明效果，相关技术通常在LED外加装配光元件对LED进行配光。早期的配光元件通常为单一配光元件，即每个LED或LED芯片具备一个独立的回转型配光元件，LED芯片位于回转型配光元件的正中位置，以使光斑呈圆形。当需要调整出光角度时通常有两种方式，一种方式是直接改变配光元件的配光构型，这种方式成本极高。要想节约成本，在不改变配光元件的前提下调整出光角度，可以通过改变LED芯片与配光元件的间距(Z轴间距)实现。
后期逐渐发展出了环形配光元件，通过一个配光元件可以同时为多个环形排布的LED芯片进行统一配光，也能够形成圆形光斑。考虑到每颗LED芯片均能够被环形配光元件均匀配光，LED芯片通常设置在环形配光元件的光源腔的中线位置。对于这种环形配光元件，当想要在不改变配光元件的配 光构型的前提下调整出光角度时，目前也普遍沿用上述改变LED芯片与配光元件的间距(Z轴间距)的方式实现。
然而，上述调整角度的方式虽然无需改变配光元件的配光构型，但其需要在光源板与配光元件之间增设结构件才能实现调整Z轴间距，结构仍然较为复杂。
发明内容
本申请实施例提供一种LED配光结构、光源模组及灯具，以解决上述问题。
本申请实施例采用下述技术方案：
第一方面，本申请实施例提供了一种LED配光结构，包括环形配光元件以及多颗LED芯片；
所述环形配光元件具备环形的光源腔，所述光源腔具有环心以及呈环形围绕所述环心的中线；
多颗所述LED芯片呈环形排布在所述光源腔内，所述LED芯片包括LED以及芯片基板，所述LED设置在所述芯片基板上；
所有所述LED芯片上的所述LED统一沿环形排布线排布，所述环形排布线与所述中线呈同心环排布，所述环形排布线处于所述中线的内侧或外侧。
可选地，上述的LED配光结构中，所述芯片基板具备中心，所述LED处于所述中心或不处于所述中心。
可选地，上述的LED配光结构中，所述LED不处于所述中心，所述芯片基板的中心处于所述中线上。
可选地，上述的LED配光结构中，所述芯片基板的中心处于所述中线的内侧或外侧。
可选地，上述的LED配光结构中，所述芯片基板具有过所述中心且相互垂直的横轴和纵轴，所述横轴和所述纵轴将所述芯片基板分隔为四个象限， 至少大部分所述LED处于其中一个所述象限内。
可选地，上述的LED配光结构中，横轴与所述纵轴均不与所述环心至所述中心的连线垂直。
可选地，上述的LED配光结构中，所有所述LED芯片在周向上相对于所述环心的姿态一致。
可选地，上述的LED配光结构中，所述LED芯片包括多颗LED，多颗所述LED均设置在所述芯片基板上。
可选地，上述的LED配光结构中，所述环形配光元件为环形折射透镜或环形全反射透镜。
第二方面，本申请实施例提供了一种光源模组，包括光源板以及所述的LED配光结构；
所述LED芯片排布在所述光源板上，所述环形配光元件罩设在所述光源板上。
第三方面，本申请实施例提供了一种灯具，包括灯体以及至少一个所述的光源模组，所述光源模组设置在所述灯体上。
本申请实施例采用的上述至少一个技术方案能够达到以下有益效果：
本申请实施例所提供的LED配光结构、光源模组及灯具能够通过改变LED相对于光源腔的中线的位置的方式在保持圆形光斑的同时实现出光角度的调整，这种调整出光角度的方式无需在光源板与配光元件之间增设结构件，因此可以大幅简化结构。
附图说明
此处所说明的附图用来提供对本申请的进一步理解，构成本申请的一部分，本申请的示意性实施例及其说明用于解释本申请，并不构成对本申请的不当限定。在附图中：
图1为本申请实施例所提供的中心d在中线b上且将LED芯片以中心d 为轴转动至环形排布线c1、c2位于中线b外侧的LED配光结构的俯视装配视图；
图2为本申请实施例所提供的中心d在中线b上且环形排布线c位于中线b外侧的LED配光结构的俯视装配视图；
图3为图2的截面视图；
图4为图2所提供的LED配光结构的配光曲线图；
图5为本申请实施例所提供的中心d以及环形排布线c均位于中线b内侧的LED配光结构的俯视装配视图；
图6为图5的截面视图；
图7为图5所提供的LED配光结构的配光曲线图；
图8为本申请实施例所提供的中心d以及环形排布线c均位于中线b外侧的LED配光结构的俯视装配视图；
图9为图8的截面视图；
图10为图8所提供的LED配光结构的配光曲线图；
图11为本申请实施例所提供的中心d在中线b上且环形排布线c位于中线b内侧的LED配光结构的俯视装配视图；
图12为图11的截面视图；
图13为图11所提供的LED配光结构的配光曲线图；
图14为本申请实施例所提供的包含多个LED的LED芯片结构视图；
图15为本申请实施例所提供的LED芯片的两种姿态。
附图标记说明：
1-环形配光元件、10-光源腔、12-配光部、120-入光面、122-出光面、124-全反射面、2-LED芯片、20-LED、22-芯片基板；
a-环心、b-中线、c-环形排布线、d-中心、e-横轴、f-纵轴。
具体实施方式
为使本申请的目的、技术方案和优点更加清楚，下面将结合本申请具体实施例及相应的附图对本申请技术方案进行清楚、完整地描述。显然，所描述的实施例仅是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
以下结合附图，详细说明本申请各实施例提供的技术方案。
本申请实施例公开了一种LED配光结构，如图1至图15所示，包括环形配光元件1以及多颗LED芯片2。环形配光元件1具备环形的光源腔10，光源腔10具有环心a以及呈环形围绕环心的中线b。环形配光元件1还具备配光部12，配光部12围绕光源腔10设置，配光部12与光源腔10的交界面即为配光部12的入光面120，光线由入光面120进入配光部12内部后可以通过折射或者反射等方式调整光路，最终由与入光面120基本正对的出光面122出射。通常情况下，光源腔10与配光部12的径向截面为轴对称结构，且轴线与中线b垂直相交。本实施例中的环形配光元件可以为环形折射透镜，也可以为环形全反射透镜，这两种透镜的区别主要在于配光部12的结构不同。环形折射透镜的配光部12通过凹透镜或凸透镜的光线折射原理进行配光，而环形全反射透镜的配光部12在存在折射的基础上还增加了全反射面124，因此可以呈现出不同于环形折射透镜的配光效果。
多颗LED芯片2呈环形排布在光源腔10内，LED芯片2包括LED 20以及芯片基板22，LED 20设置在芯片基板22上。所有LED芯片2上的LED 20统一沿环形排布线c排布，环形排布线c与中线b呈同心环排布，根据所需的出光角度的不同，环形排布线c可能处于中线b的内侧(参见图2、3、5、6、11、12)，也可能处于中线b的外侧(参见图1、7、8)。当需要增大出光角度时，环形排布线c将处于中线b的内侧，此时配光部12会对LED 20的光线产生偏光效果，LED 20所发出的光线会更多地被配光部12出射至背 离环心a的一侧，因此LED配光结构整体可拥有更大的出光角度。反之，当需要减小出光角度时，环形排布线c将处于中线b的外侧，此时LED 20所发出的光线会更多地被配光部12出射至朝向环心a的一侧，因此LED配光结构整体可拥有更小的出光角度。
并且，虽然对于单颗LED 20而言，通过上述调整后将处于偏配光的处境，但由于LED 20均处于同一环形排布线c上，因此每个LED20的偏配光效果可以保持一致，对于所有的LED20的整体出光效果而言，便依然可以保证整体为圆形光斑。
对于实现上述LED配光结构的光源模组而言，可以直接将上述LED配光结构的LED芯片2排布在光源板(图中未示出)上，并将环形配光元件1罩设在光源板上，便可实现相应配光效果，模组结构中无需额外增设其它结构件，因此相较于相关技术中的调整结构而言，本实施例所提供的LED配光结构能够更加简化光源模组的结构。
在生产实践中，芯片基板22通常具备一个中心d，该中心d可以指芯片基板22的几何中心，当芯片基板22为圆形、方形或其它近似形状时便具有几何中心。除此之外，该中心也可以是指芯片基板的尺寸中心、垂线中心等各种形式的中心。该中心d在相关技术中通常会被设置在光源腔10的中线b位置。
在本实施例中，根据LED芯片2的型号不同，其LED 20可能处于上述中心d，也可能不处于上述中心d。对于不同结构的LED芯片2，可以采用不同的结构形式。
如图1、2、3、11、12所示，当LED 20不处于芯片基板22的中心d时，可以将芯片基板22的中心d处于中线b上。此时LED 20将处于偏心位置。将LED芯片2以中心d为轴转动，LED 20将围绕中心d进行转动，从而实现对LED 20所处位置的调整。此时，只需控制所有的LED处于同一环形排布线c，便可实现对出光角度的调整。参见图4和图13，以清致60°投光灯 为例，LED选择OSRAM3030，通过将LED芯片2以中心d为轴转动，可以将光束角在60°(图4)至86°(图13)范围内进行调整。
当LED 20处于芯片基板22的中心d时，可以直接调整整块LED芯片2的位置，使芯片基板22的中心d处于中线b的内侧或外侧，而保持LED芯片2的原有姿态不变，依然可以实现对LED 20所处位置的调整。并且，这种调整方式同样可以适用于LED 20不处于芯片基板22的中心d的情况(参见图2至图10)。参见图4、7和图10，同样以清致60°投光灯为例，LED选择OSRAM3030，在LED芯片2上的LED20全部处于芯片基板22远离中心d的一侧的姿态下，通过调整LED芯片2的位置，可以将光束角在54°(图10)至70°(图7)范围内进行调整。
通过上述两种调整方式，可以实现光束角在54°至86°范围内的调整。而在其它一些实施例中，还可以对LED 20未处于芯片基板22的中心d的LED芯片2同时应用上述两种调整方式，即一方面改变芯片基板22的中心的位置，使其处于中线b的内侧或外侧，另一方面也同时将LED芯片2以中心d为轴转动进一步改变LED 20所处的位置。这样可以期望获得更大的角度调整幅度。
为了配合LED芯片2的位置调整或者转动，通常需要对应调整光源板上与LED芯片2的焊盘，将其位置或者姿态调整至与LED芯片2保持一致。而在一些情况下，由于光源板上的电路排布限制，可能光源板无法对应采用单一调整方式进行焊盘的调整，而同时应用两种调整方式的方案则给了光源板更多的布线选择，有利于光源板合理布线，降低布线以及光源板加工难度。
对于将LED芯片2以中心d为轴转动的调节方式，由于转动方向的差异，大多数情况下LED 20既可以顺时针转动至其处于环形排布线c，也可以逆时针转动至其处于环形排布线c，从而形成两种不同的姿态(参见图15)。这两种姿态中虽然LED 20相对于环心a或者中线b的距离相同，但由于在环形的周向上存在位置差异，因此LED 20所形成的光斑位置也会有一定的偏移。 这些偏移可能造成整体光斑的亮度分布不均。因此为了使光斑的亮度分布较为均匀，本实施例中优选所有LED芯片2在周向上相对于环心a的姿态保持一致。这样能够在改变LED 20相对于环心a或中线b的位置的同时使所有LED 20均沿周向向同一方向移动相同的距离，保证其间隔不发生变化，从而确保亮度的均匀分布。
对于本实施例的调整方式而言，更加适用于下列结构的LED芯片2。如图14所示，该LED芯片2的芯片基板22具有过中心d且相互垂直的横轴e和纵轴f，横轴e和纵轴f将芯片基板22分隔为四个象限，LED芯片2内所含有的LED 20的数量可以仅为一颗，或者也可以同时含有多颗。无论对于哪种方案，对于LED 20整体而言，至少大部分LED 20处于其中一个象限内，可能有少部分LED 20处于相邻甚至相对的其它象限内。这种LED芯片2可以横轴e以及纵轴f为基准，更加利于技术人员调整LED 20的位置。如图1所示，在一些实施例中，可以根据需要将横轴e与纵轴f均不与环心a至中心d的连线垂直，而是呈某一角度(参见图1)。
当LED芯片2内含有多颗LED 20时，这些LED20可以处于同一环形排布线c，但更大的可能是处于同一位置的LED 20处于同一环形排布线c，而处于不同位置的LED 20分别位于不同的环形排布线c，从而形成多条环形排布线c1、c2。
本实施例所提供的光源模组在设置在灯具内部时可以被设置在灯体上。并且，根据不同的光效需求，在同一灯具内可以平面阵列形式或同心环形形式同时设置多个光源模组。这些光源模组的光源板可以各自独立，也可以集成为一个整体。
综上所述，本申请实施例所提供的LED配光结构、光源模组及灯具可以大幅简化结构。
本申请上文实施例中重点描述的是各个实施例之间的不同，各个实施例之间不同的优化特征只要不矛盾，均可以组合形成更优的实施例，考虑到行 文简洁，在此则不再赘述。
以上仅为本申请的实施例而已，并不用于限制本申请。对于本领域技术人员来说，本申请可以有各种更改和变化。凡在本申请的精神和原理之内所作的任何修改、等同替换、改进等，均应包含在本申请的权利要求范围之内。

Claims (11)

  1. 一种LED配光结构，其中，包括环形配光元件以及多颗LED芯片；
    所述环形配光元件具备环形的光源腔，所述光源腔具有环心以及呈环形围绕所述环心的中线；
    多颗所述LED芯片呈环形排布在所述光源腔内，所述LED芯片包括LED以及芯片基板，所述LED设置在所述芯片基板上；
    所有所述LED芯片上的所述LED统一沿环形排布线排布，所述环形排布线与所述中线呈同心环排布，所述环形排布线处于所述中线的内侧或外侧。
  2. 根据权利要求1所述的LED配光结构，其中，所述芯片基板具备中心，所述LED处于所述中心或不处于所述中心。
  3. 根据权利要求2所述的LED配光结构，其中，所述LED不处于所述中心，所述芯片基板的中心处于所述中线上。
  4. 根据权利要求2所述的LED配光结构，其中，所述芯片基板的中心处于所述中线的内侧或外侧。
  5. 根据权利要求3或4所述的LED配光结构，其中，所述芯片基板具有过所述中心且相互垂直的横轴和纵轴，所述横轴和所述纵轴将所述芯片基板分隔为四个象限，至少大部分所述LED处于其中一个所述象限内。
  6. 根据权利要求5所述的LED配光结构，其中，横轴与所述纵轴均不与所述环心至所述中心的连线垂直。
  7. 根据权利要求1至4任一项所述的LED配光结构，其中，所有所述LED芯片在周向上相对于所述环心的姿态一致。
  8. 根据权利要求1至4任一项所述的LED配光结构，其中，所述LED芯片包括多颗LED，多颗所述LED均设置在所述芯片基板上。
  9. 根据权利要求1至4任一项所述的LED配光结构，其中，所述环形配光元件为环形折射透镜或环形全反射透镜。
  10. 一种光源模组，其中，包括光源板以及权利要求1至9任一项所述的LED配光结构；
    所述LED芯片排布在所述光源板上，所述环形配光元件罩设在所述光源板上。
  11. 一种灯具，其中，包括灯体以及至少一个权利要求10所述的光源模组，所述光源模组设置在所述灯体上。
PCT/CN2020/119239 2019-10-09 2020-09-30 Led配光结构、光源模组及灯具 WO2021068826A1 (zh)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP20875190.9A EP3971466A4 (en) 2019-10-09 2020-09-30 LED LIGHT DISTRIBUTION STRUCTURE, LIGHT SOURCE MODULE, AND LAMP
US17/561,699 US11668439B2 (en) 2019-10-09 2021-12-23 LED light distribution structure, light source module and lamp

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CN201910954428.2 2019-10-09
CN201910954428.2A CN110645486A (zh) 2019-10-09 2019-10-09 Led配光结构、光源模组及灯具
CN201921677858.6U CN210372914U (zh) 2019-10-09 2019-10-09 Led配光结构、光源模组及灯具
CN201921677858.6 2019-10-09

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US17/561,699 Continuation US11668439B2 (en) 2019-10-09 2021-12-23 LED light distribution structure, light source module and lamp

Publications (1)

Publication Number Publication Date
WO2021068826A1 true WO2021068826A1 (zh) 2021-04-15

Family

ID=75437700

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2020/119239 WO2021068826A1 (zh) 2019-10-09 2020-09-30 Led配光结构、光源模组及灯具

Country Status (3)

Country Link
US (1) US11668439B2 (zh)
EP (1) EP3971466A4 (zh)
WO (1) WO2021068826A1 (zh)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201133608Y (zh) * 2007-12-28 2008-10-15 腾达精密股份有限公司 光源结构
US20140343904A1 (en) * 2013-05-16 2014-11-20 Hon Hai Precision Industry Co., Ltd. Method for designing lens
CN104566205A (zh) * 2013-10-14 2015-04-29 海洋王（东莞）照明科技有限公司 一种透镜及使用该透镜的led灯具
CN110296375A (zh) * 2019-05-31 2019-10-01 杭州罗莱迪思照明系统有限公司 一种可变光角的led灯具及调光方法
CN210372914U (zh) * 2019-10-09 2020-04-21 欧普道路照明有限公司 Led配光结构、光源模组及灯具

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7896521B2 (en) * 2007-05-04 2011-03-01 Abl Ip Holding Llc Adjustable light distribution system
US8287147B2 (en) * 2008-11-15 2012-10-16 Rongsheng Tian LED based omni-directional light engine
US9035328B2 (en) * 2011-02-04 2015-05-19 Cree, Inc. Light-emitting diode component
CN103206665B (zh) * 2012-01-11 2017-07-28 欧司朗股份有限公司 透镜和具有该透镜的照明装置
KR20140033527A (ko) * 2012-08-14 2014-03-19 삼성전자주식회사 집광렌즈 및 이를 포함하는 조명장치
TWI537608B (zh) * 2014-11-21 2016-06-11 玉晶光電股份有限公司 薄型化鏡片

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201133608Y (zh) * 2007-12-28 2008-10-15 腾达精密股份有限公司 光源结构
US20140343904A1 (en) * 2013-05-16 2014-11-20 Hon Hai Precision Industry Co., Ltd. Method for designing lens
CN104566205A (zh) * 2013-10-14 2015-04-29 海洋王（东莞）照明科技有限公司 一种透镜及使用该透镜的led灯具
CN110296375A (zh) * 2019-05-31 2019-10-01 杭州罗莱迪思照明系统有限公司 一种可变光角的led灯具及调光方法
CN210372914U (zh) * 2019-10-09 2020-04-21 欧普道路照明有限公司 Led配光结构、光源模组及灯具

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP3971466A4 *

Also Published As

Publication number Publication date
EP3971466A1 (en) 2022-03-23
EP3971466A4 (en) 2022-08-10
US20220112989A1 (en) 2022-04-14
US11668439B2 (en) 2023-06-06

Similar Documents

Publication Publication Date Title
EP2898259B1 (en) Variable-beam light source and related methods
TWI524030B (zh) 發光裝置及照明器具
CN104755988B (zh) 用于发光二极管的包括截头锥形表面的全向反射器
US10725221B2 (en) Light pipes for LED array luminaire
TWI384651B (zh) 發光二極體結構及其製造方法
CN102171503A (zh) 照明设备及其制造方法
CN102654262A (zh) Led照明器具
CN110325787A (zh) 具有光导的灯具
US10802114B2 (en) Device and method for uniform far-field illumination with LEDs
JP6112395B2 (ja) 照明器具
JP5588808B2 (ja) 発光装置、照明装置及び表示装置
JP5861111B2 (ja) 照明器具
WO2021068826A1 (zh) Led配光结构、光源模组及灯具
CN210372914U (zh) Led配光结构、光源模组及灯具
CN110645486A (zh) Led配光结构、光源模组及灯具
TW201506321A (zh) 發光二極體光源模組
JP2005306189A (ja) 光源ユニットおよび照明装置
TWI738393B (zh) 照明器具
US11326746B2 (en) Lighting device with light-emitting filaments
CN103807627B (zh) 发光模块和包括该发光模块的照明装置
CN105841096A (zh) 配光透镜
TWM457136U (zh) 用於光線發射系統之二次光學結構
JP3226408U (ja) 植物育成用光照射装置ユニット
JP2023018868A (ja) 照明器具
JP2023018702A (ja) 照明器具

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 20875190

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 2020875190

Country of ref document: EP

Effective date: 20211217

NENP Non-entry into the national phase

Ref country code: DE