WO2023124285A1 - 一种led照明机构 - Google Patents

一种led照明机构 Download PDF

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Publication number
WO2023124285A1
WO2023124285A1 PCT/CN2022/120284 CN2022120284W WO2023124285A1 WO 2023124285 A1 WO2023124285 A1 WO 2023124285A1 CN 2022120284 W CN2022120284 W CN 2022120284W WO 2023124285 A1 WO2023124285 A1 WO 2023124285A1
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Prior art keywords
light
wall
lens
led lighting
lighting mechanism
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PCT/CN2022/120284
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English (en)
French (fr)
Inventor
杨毅博
万千里
杨传银
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珠海和其光照明科技有限公司
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Publication of WO2023124285A1 publication Critical patent/WO2023124285A1/zh

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S2/00—Systems of lighting devices, not provided for in main groups F21S4/00 - F21S10/00 or F21S19/00, e.g. of modular construction
    • 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
    • F21V7/00—Reflectors 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
    • F21V7/06—Optical design with parabolic curvature
    • 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
    • F21V7/08—Optical design with elliptical 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 relates to the technical field of lighting optics, in particular to an LED lighting mechanism.
  • the basic structure of the LED is an electroluminescent semiconductor material chip, which is cured on the bracket with silver glue or white glue, and then connected to the chip and the circuit board with silver or gold wires, and then sealed with epoxy resin around it to play a role.
  • the function of protecting the internal core wire is to install the shell at last, so the shock resistance of LED lights is good.
  • the application field involves daily home appliances and mechanical production such as mobile phones, table lamps, and home appliances.
  • domestic There are anti-glare standards for indoor lamps and lanterns and the European Union's indoor lamps have anti-glare standards that are even stricter, that is, UGR ⁇ 19, or even lower.
  • UGR ⁇ 19 the International Commission on Illumination proposed the concept of anti-glare lamps, and put UGR is used as an index to evaluate the uncomfortable glare of indoor lighting environment.
  • the lampshade will use translucent materials to expand the LED point light source into a surface light source, increase the light-emitting surface, and eliminate glare , to sublimate the visual effect, a considerable part of the light emitted by the light source cannot be effectively used, resulting in the reduction of effective lighting, and the lighting angle is not easy to control, it is difficult to meet the lighting effect requirements of indoor lighting UGR ⁇ 19, in addition, there will be chromatic aberration and blue light phenomenon , which is harmful to human eyes.
  • the anti-glare LED lamps that can meet the needs of indoor lighting are generally used less.
  • the common anti-glare panel lamp products in the industry are mainly extruded and formed prism plates in front of the existing commonly used panel lights, and hot-pressed prism plates.
  • the above-mentioned anti-glare panel light emits a considerable part of the light If it cannot be used effectively, more than half of the power will often be lost, the structure is complex, and the energy-saving effect is not ideal.
  • the object of the present invention is to provide an LED lighting mechanism that can effectively use the light emitted by the light source and avoid glare.
  • the present invention provides an LED lighting mechanism, including a lens assembly, a reflector assembly and an LED light source element arranged in sequence.
  • Two light-transmitting areas, the first light-transmitting area and the second light-transmitting area are both provided with first protrusions of the lens element, and the number of first protrusions in the first light-transmitting area is equal to the number of first protrusions in the second light-transmitting area;
  • the reflective mirror assembly includes several reflective mirror parts, the reflective inner wall of each reflective mirror part is a curved surface, and the reflective inner wall protrudes to the outside of the reflective mirror assembly.
  • the light emitted by the LED light source is first reflected by the mirror assembly, and then refracted and diverged by the lens assembly, and the same number of first light-transmitting areas and second light-transmitting areas protruding from the outer wall of the lens element are provided.
  • the reflective inner wall of the reflective mirror as a curved surface to fully reflect the light that is not directly irradiated by the light source on the inner surface of the optical lens to the lens assembly for use, so that the light emitted by the LED light source can be diffused to a wider range
  • the light emitted by the light source is effectively used, and the reflected, refracted and scattered light can reduce the surface brightness of the light-emitting surface and prevent glare.
  • the reflective inner wall is a parabolic surface of revolution.
  • the reflective inner wall is spherical or ellipsoidal.
  • the reflective inner wall is provided with a parabolic rotating surface
  • the two sides of the parabolic rotating surface are respectively provided with a spherical surface or an ellipsoidal surface, and a parabolic rotating surface and two spherical surfaces or two ellipsoidal surfaces form the reflective inner wall.
  • parabolic rotating surface is connected to the spherical surface through a smooth transition of a circular arc.
  • the reflective inner wall is provided with a spherical surface or an ellipsoidal surface, and the two sides of the spherical surface or the ellipsoidal surface are respectively provided with a parabolic surface of revolution, and a spherical surface or an ellipsoidal surface and two parabolic surfaces of revolution form the reflective inner wall.
  • parabolic rotating surface is connected to the spherical surface or the ellipsoidal surface through a smooth transition of a circular arc.
  • each first protrusion extends from the bottom of the lens piece to the top of the lens piece.
  • each first protrusion is longer than the length of the first protrusion adjacent to it and far away from the second light-transmitting region; in the second light-transmitting region, each first protrusion The lengths of the protrusions are all longer than the lengths of the first protrusions adjacent to it and relatively far away from the first light-transmitting region.
  • each lens element is provided with a plurality of second protrusions, the second protrusions extend from one side of the lens element to the other side, and the length of each second protrusion is longer than that of its neighbor and away from the LED light source.
  • the length of the second protrusion of the piece is provided with a plurality of second protrusions, the second protrusions extend from one side of the lens element to the other side, and the length of each second protrusion is longer than that of its neighbor and away from the LED light source. The length of the second protrusion of the piece.
  • the light emitted by the LED light source is first reflected by the reflector assembly, and then refracted and diverged by the lens assembly.
  • the same number of first light-transmitting areas and second light-transmitting areas protruding from the outer wall of the lens element are provided, and a reflector is provided.
  • the reflective inner wall of the component is a curved surface, so that the light emitted by the LED light source component can be diffused to a wider range, the light emitted by the light source can be used effectively, and the reflected, refracted and divergent light can reduce the surface brightness of the light-emitting surface and prevent glare.
  • Fig. 1 is a structural sectional view of an embodiment of an LED lighting mechanism according to the present invention.
  • Fig. 2 is a structural diagram of a lens assembly of an embodiment of an LED lighting mechanism according to the present invention.
  • Fig. 3 is a structural diagram of another viewing angle of a lens assembly of an embodiment of an LED lighting mechanism according to the present invention.
  • Fig. 4 is a structural diagram of a reflector assembly of an embodiment of an LED lighting mechanism according to the present invention.
  • LED lighting mechanism 100 LED lighting mechanism 100; lens assembly 1; reflector assembly 2; LED light source part 3; lens part 4; first light transmission area 5; second light transmission area 6; first protrusion 7; second protrusion 8; reflective mirror part 9; reflective inner wall 10.
  • the LED lighting mechanism 100 includes a lens assembly 1, a reflector assembly 2 and an LED light source part 3 arranged in sequence.
  • the lens assembly 1 includes several lens parts 4, and the lens parts 4 are optical lenses.
  • the outer wall of each lens element 4 is provided with a first light-transmitting area 5 and a second light-transmitting area 6 , and the first light-transmitting area 5 and the second light-transmitting area 6 are connected in a smooth transition.
  • the number of lens elements 4 is four, and adjacent lens elements 4 can be integrally formed and connected, or can be bonded to each other.
  • Both the first light transmission area 5 and the second light transmission area 6 are provided with the first protrusions 7 of the lens element 4, and the number of the first protrusions 7 in the first light transmission area 5 is equal to the first protrusions 7 of the second light transmission area 6 quantity.
  • Each first protrusion 7 extends from the bottom of the lens element 4 to the top of the lens element 4 .
  • each first protrusion 7 is longer than the length of the first protrusion 7 adjacent to it and far away from the second light-transmitting region 6; in the second light-transmitting region 6, each The lengths of the first protrusions 7 are all longer than the lengths of the first protrusions 7 adjacent thereto and far away from the first light-transmitting region 5 .
  • each lens element 4 is provided with a plurality of second protrusions 8, the second protrusions 8 extend from one side of the lens element 4 to the other side, and the length of each second protrusion 8 is longer than that adjacent to it and far away from it.
  • the length of the second protrusion of the LED light source component 3 is provided with a plurality of second protrusions 8, the second protrusions 8 extend from one side of the lens element 4 to the other side, and the length of each second protrusion 8 is longer than that adjacent to it and far away from it. The length of the second protrusion of the LED light source component 3 .
  • the base surface of the lens assembly 1 is a spherical surface, or an ellipsoid, or a parabolic surface of revolution, or a conical surface, or a polygonal pyramid surface, and the extension direction of the first protrusion 7 is perpendicular to the extension direction of the second protrusion 8, and the first protrusion 7 and the second protrusion
  • the two protrusions 8 are arc-shaped protrusions, and the diameter of the first protrusion 7 is equal to the diameter of the second protrusion 8 .
  • the reflective mirror assembly 2 includes several reflective mirror elements 9 , and the reflective inner wall 10 of each reflective mirror element 9 is a curved surface, and the reflective inner wall 10 protrudes to the outside of the reflective mirror assembly 2 .
  • the number of reflective mirror parts 9 is four, and the adjacent reflective mirror parts 9 can be integrally formed and connected, or can be bonded to each other.
  • the reflective inner wall 10 is a parabolic surface of revolution.
  • the reflective inner wall 10 is spherical or ellipsoidal.
  • the reflective inner wall 10 is provided with a parabolic rotating surface, and the two sides of the parabolic rotating surface are respectively provided with a spherical surface, and a parabolic rotating surface and two spherical surfaces form the reflective inner wall 10, or, the reflective inner wall 10 is provided with a parabolic rotating surface
  • the two sides of the parabolic rotating curved surface are respectively provided with an ellipsoid, and a parabolic rotating curved surface and two ellipsoids form a reflective inner wall 10, or, the reflective inner wall 10 is provided with a spherical surface, and a parabola is respectively arranged on both sides of the spherical surface
  • the reflective inner wall 10 is composed of a spherical surface and two parabolic rotating surfaces, or the reflective inner wall 10 is provided with an ellipsoid, and a parabolic rotating surface is respectively provided on both sides of the ellipsoid, an ellipsoid and two parabolic rotating surfaces
  • the parabolic surface of revolution is connected to the spherical surface or the ellipsoidal surface with a smooth transition of the arc.
  • the light emitted by the LED light source unit 3 is first reflected by the mirror assembly 2, and then refracted and diverged by the lens assembly 1, and the same number of first protrusions 7 are arranged on the first light-transmitting area of the outer wall of the lens unit 4 5 and the second light-transmitting area 6, and the reflective inner wall of the reflective mirror 9 is set as a curved surface, so that the light emitted by the LED light source part 3 can be diffused to a wider range, and the light emitted by the light source can be effectively used, and the reflection, Refracting and diverging light reduces the surface brightness of the light-emitting surface and prevents glare.
  • the reflective mirror part 9 is a "non-uniform reflective reflective mirror", and its reflectivity is improved by polishing and aluminizing (generally, the reflectivity after polishing and aluminizing can reach 92-95%).
  • the light emitted by the LED light source is irradiated on the reflective surface of the reflective mirror 9, and is not uniformly reflected to the inner surface of the lens.
  • make full use of the light that is not directly irradiated by the light source on the inner surface of the optical lens (the light irradiated by the classroom lights and other indoor lights on the market on the side of the inner cavity is blocked from the cavity) to reduce "light loss",
  • a pre-adjustment of luminous flux is also made for the light distribution of the lens assembly.
  • the arrangement of the first protrusion 7 and the second protrusion 8 as described above can make the LED light source element 3 evenly dispersed in the irradiation range for non-uniform distribution, and control the light exit angle of the light emitted from the outer surface of the lens, that is, form an "optical shading angle” (Generally, lamps use grilles or lamp covers to form a “shading angle", which we call “physical shading angle” to show the difference) to achieve anti-glare effect.
  • the indoor lamp (classroom lamp) with "optical shading angle" formed by precise light distribution has a much higher anti-glare effect than the grille anti-glare, because it completely eliminates the reflected glare formed inside the grille and ensures that the irradiated area
  • the illuminance value within is consistent with the design requirements.
  • the light emitted by the LED light source is irradiated through the lens assembly, the light-emitting area of the lamp is greatly increased, and the brightness is greatly reduced (less than 10000cd/m 2 ), thus completely eliminating the blue light hazard (using any LED chip).
  • the LED lighting mechanism 100 can be used as an indoor lamp such as a classroom lamp and a meeting room lamp according to the "2 ⁇ 9" arrangement, and can extract the light emitted by the LED light source to the maximum extent, and the optical curve characteristic is known.
  • the light emitted by the LED light source is precisely irradiated to the area to be irradiated, and the illuminance value in the area is consistent with the design requirements.
  • the required shading angle is achieved through precise light distribution, and glare-free lighting is realized. Finally, the overall excellent lighting effect is realized. energy-saving effect.
  • first and second are used for descriptive purposes only, and should not be understood as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Therefore, the features defined as “first” and “second” may explicitly or implicitly include one or more of these features.
  • connection and “positioning” should be interpreted in a broad sense, for example, it can be a fixed connection, clamping and positioning, or a detachable connection, or integrated ; It can be directly connected or indirectly connected through an intermediary, and it can be the internal communication of two elements or the interaction relationship between two elements.
  • connection and “positioning” should be interpreted in a broad sense, for example, it can be a fixed connection, clamping and positioning, or a detachable connection, or integrated ; It can be directly connected or indirectly connected through an intermediary, and it can be the internal communication of two elements or the interaction relationship between two elements.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Securing Globes, Refractors, Reflectors Or The Like (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

本发明提供的LED照明机构包括依次布置的透镜组件、反光镜组件与LED光源件，透镜组件包括若干透镜件，每一透镜件的外壁设有第一透光区与第二透光区，第一透光区与第二透光区均设有透镜件的第一突起；反光镜组件包括若干反光镜件，每一反光镜件的反光内壁为曲面，反光内壁凸向反光镜组件的外侧。LED光源件发出的光先经反光镜组件反射，后经透镜组件进行折射发散，设置相同数量的第一突起于透镜件的外壁设有第一透光区与第二透光区，并设置反光镜件的反光内壁为曲面，从而使LED光源件发出的光可发散至更大范围，有效使用光源发出的光，更可令经过反射、折射发散的光降低发光面表面光亮度，防止炫目。

Description

一种LED照明机构 技术领域
本发明涉及照明光学技术领域，具体涉及一种LED照明机构。
背景技术
目前，LED的基本结构是一块电致发光的半导体材料芯片，用银胶或白胶固化到支架上，然后用银线或金线连接芯片和电路板，然后四周用环氧树脂密封，起到保护内部芯线的作用，最后安装外壳，所以LED灯的抗震性能好，运用领域涉及到手机、台灯、家电等日常家电和机械生产方面，为了得到舒适，高质量的照明环境，近年来，国内外对室内灯具都有防眩光的标准，欧盟的室内灯具都有防眩光的标准更是严格，即UGR＜19，甚至更低，1995年，国际照明委员会提出了灯具防眩光的概念，并把UGR作为评价室内照明环境不舒适眩光的指标。
现有许多室内照明LED灯具，如LED灯管，为了避免灯光太强给人视觉上造成眩晕感，通常灯罩会采用半透明材料，使LED点光源扩展为面光源，增大发光面，消除眩光，升华视觉效果，光源发出的光相当部分无法被有效使用，导致有效照明减少，光照角度也不好控制，根本难以达到室内照明UGR＜19照明效果需求，另外，也会产生色差与蓝光的现象，对人眼有一定的危害。
现在，能满足室内照明防眩光LED灯具，普遍应用较少，目前业内常见的防眩光面板灯产品主要是在现有普遍使用的面板灯前加挤出成型棱晶板，热压成型棱晶板，微结构防眩光膜以及贴合板的方法，还有一种防眩光面板灯就是在面板灯前加一个网格栅，把大角度的光都挡住，上述防眩光面板灯，光源发 出的光相当部分无法被有效使用，往往会损失超过一半左右的功率，结构复杂，节能效果并不理想。
发明内容
为了克服现有技术的不足，本发明的目的在于提供一种可有效使用光源发出的光且避免炫目的LED照明机构。
为实现上述目的，本发明提供了LED照明机构，包括依次布置的透镜组件、反光镜组件与LED光源件，透镜组件包括若干透镜件，每一透镜件的外壁设有第一透光区与第二透光区，第一透光区与第二透光区均设有透镜件的第一突起，第一透光区的第一突起的数量等于第二透光区的第一突起的数量；反光镜组件包括若干反光镜件，每一反光镜件的反光内壁为曲面，反光内壁凸向反光镜组件的外侧。
由上述方案可见，LED光源件发出的光先经反光镜组件反射，后经透镜组件进行折射发散，设置相同数量的第一突起于透镜件的外壁的第一透光区与第二透光区，并设置反光镜件的反光内壁为曲面以把光源未直接照射到光学透镜的内表面上的光充分反射至透镜组件而利用起来，从而在使LED光源件发出的光可发散至更大范围的同时有效使用光源发出的光，更可令经过反射、折射发散的光降低发光面表面光亮度，防止炫目。
优选的，反光内壁为抛物线旋转曲面。
优选的，反光内壁为圆球面或椭球面。
优选的，反光内壁设有一个抛物线旋转曲面，抛物线旋转曲面的两侧分别设有一个圆球面或椭球面，一个抛物线旋转曲面与两个圆球面或两个椭球面组成反光内壁。
进一步的，抛物线旋转曲面为圆弧光滑过渡连接于圆球面。
优选的，反光内壁设有一个圆球面或一个椭球面，圆球面或椭球面的两侧分别设有一个抛物线旋转曲面，一个圆球面或一个椭球面与两个抛物线旋转曲面组成反光内壁。
进一步的，抛物线旋转曲面为圆弧光滑过渡连接于圆球面或椭球面。
优选的，每一第一突起自透镜件的底部往透镜件的顶部延伸。
优选的，于第一透光区，每一第一突起的长度均长于与其相邻且相对于其远离第二透光区的第一突起的长度；于第二透光区，每一第一突起的长度均长于与其相邻且相对于其远离第一透光区的第一突起的长度。
优选的，每一透镜件的内壁设有若干第二突起，第二突起自透镜件的一侧延伸至另一侧，每一第二突起的长度均长于与其相邻且相对于其远离LED光源件的第二突起的长度。
相比现有技术，本发明的有益效果在于：
LED光源件发出的光先经反光镜组件反射，后经透镜组件进行折射发散，设置相同数量的第一突起于透镜件的外壁的第一透光区与第二透光区，并设置反光镜件的反光内壁为曲面，从而使LED光源件发出的光可发散至更大范围，有效使用光源发出的光，更可令经过反射、折射发散的光降低发光面表面光亮度，防止炫目。
下面结合附图和具体实施方式对本发明作进一步详细说明。
附图说明
利用附图对本发明作进一步说明，但附图中的实施例不构成对本发明的任 何限制，对于本领域的技术人员，在不付出创造性劳动的前提下，还可以根据以下附图获得其它的附图。
图1是本发明所述一种LED照明机构实施例的结构剖视图。
图2是本发明所述一种LED照明机构实施例的透镜组件的结构图。
图3是本发明所述一种LED照明机构实施例的透镜组件的另一视角的结构图。
图4是本发明所述一种LED照明机构实施例的反光镜组件的结构图。
附图标号说明：LED照明机构100；透镜组件1；反光镜组件2；LED光源件3；透镜件4；第一透光区5；第二透光区6；第一突起7；第二突起8；反光镜件9；反光内壁10。
具体实施方式
为了使本发明的目的、技术方案及优点更加清楚明白，以下结合附图及实施例，对本发明进行进一步详细说明。应当理解，此处所描述的具体实施例仅用以解释本发明，并不用于限定本发明。
参见图1至图3，本实施例提供的LED照明机构100包括依次布置的透镜组件1、反光镜组件2与LED光源件3，透镜组件1包括若干透镜件4，透镜件4为光学透镜，每一透镜件4的外壁设有第一透光区5与第二透光区6，第一透光区5与第二透光区6为光滑过渡连接。在本实施例中，透镜件4的数量为四个，相邻透镜件4可为一体成型连接，亦可为相互粘接。
第一透光区5与第二透光区6均设有透镜件4的第一突起7，第一透光区5的第一突起7的数量等于第二透光区6的第一突起7的数量。
每一第一突起7自透镜件4的底部往透镜件4的顶部延伸。
于第一透光区5，每一第一突起7的长度均长于与其相邻且相对于其远离第二透光区6的第一突起7的长度；于第二透光区6，每一第一突起7的长度均长于与其相邻且相对于其远离第一透光区5的第一突起7的长度。
每一透镜件4的内壁设有若干第二突起8，第二突起8自透镜件4的一侧延伸至另一侧，每一第二突起8的长度均长于与其相邻且相对于其远离LED光源件3的第二突起的长度。
透镜组件1的基面为球面、或椭球面、或抛物线旋转曲面、或圆锥面、或多棱锥面，第一突起7的延伸方向垂直于第二突起8的延伸方向，第一突起7与第二突起8均为圆弧状突起，第一突起7的直径等于第二突起8的直径。
参见图4，反光镜组件2包括若干反光镜件9，每一反光镜件9的反光内壁10为曲面，反光内壁10凸向反光镜组件2的外侧。在本实施例中，反光镜件9的数量为四个，相邻反光镜件9可为一体成型连接，亦可为相互粘接
反光内壁10为抛物线旋转曲面。
反光内壁10为圆球面或椭球面。
优选的，反光内壁10设有一个抛物线旋转曲面，抛物线旋转曲面的两侧分别设有一个圆球面，一个抛物线旋转曲面与两个圆球面组成反光内壁10，或者，反光内壁10设有一个抛物线旋转曲面，抛物线旋转曲面的两侧分别设有一个椭球面，一个抛物线旋转曲面与两个椭球面组成反光内壁10，或者，反光内壁10设有一个圆球面，圆球面的两侧分别设有一个抛物线旋转曲面，一个圆球面与两个抛物线旋转曲面组成反光内壁10，或者，反光内壁10设有一个椭球面，椭球面的两侧分别设有一个抛物线旋转曲面，一个椭球面与两个抛物线旋转曲面组成反光内壁10。
抛物线旋转曲面为圆弧光滑过渡连接于圆球面或椭球面。
参见图1至图4，LED光源件3发出的光先经反光镜组件2反射，后经透镜组件1进行折射发散，设置相同数量的第一突起7于透镜件4外壁的第一透光区5与第二透光区6，并设置反光镜件9的反光内壁为曲面，从而使LED光源件3发出的光可发散至更大范围，有效使用光源发出的光，更可令经过反射、折射发散的光降低发光面表面光亮度，防止炫目。
反光镜件9为“非均匀反射反光镜”，并通过抛光、镀铝，来提高其反射率(一般抛光镀铝后的反射率可达92－95％)。LED光源件发出的光照射在反光镜件9的反射面，并非均匀定向反射到透镜内表面。把光源未直接照射到光学透镜的内表面上的光充分利用起来(市面上的教室灯等室内灯照射在内腔侧面的光均被挡在腔体内出不来)来减少“光损”，还为透镜组件的配光作了一次光通量的预调配。
如上述设置第一突起7与第二突起8，可使LED光源件3均匀分散至照射范围内进行非均匀分配，并控制透镜外表面发出的光的出光角、即形成“光学遮光角”(一般灯具采用格栅或灯具外罩形成“遮光角”，我们称之为“物理遮光角”，以示区别)，达到防眩效果。通过精确配光形成的“光学遮光角”的室内灯(教室灯)，其防眩效果远高于格栅防眩，因为它彻底消除了格栅内侧形成的反射眩光，并保证在所照射区域内的照度值与设计要求一致。另外，LED光源件所发出的光，通过透镜组件照射出去，灯具发光面积大幅提升，亮度大幅下降(小于10000cd/m 2)，从而彻底消除了蓝光危害(使用任何LED芯片)。
LED照明机构100可按照“2×9”陈列布置而作为一盏教室灯、会议室灯等室内灯而使用，把LED光源件所发出的光最大限度地导出来，把光学曲线特性已知的LED光源发出的光，精确照射到需要照射的区域，并使得区域内的照度值与设计要求一致，同时通过精确配光达到要求的遮光角，实现了无眩目照明， 并最终实现灯具整体优良的节能效果。
术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相対重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含的包括一个或者更多个该特征。
在本发明中，除非另有明确的规定和限定，术语“连接”、“定位”等术语应做广义理解，例如，可以是固定连接、夹持定位，也可以是可拆卸连接，或成一体；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本发明中的具体含义。
上述实施方式仅为本发明的优选实施方式，不能以此来限定本发明保护的范围，本领域的技术人员在本发明的基础上所做的任何非实质性的变化及替换均属于本发明所要求保护的范围。
最后需要强调的是，本发明不限于上述实施方式，以上所述仅为本发明的较佳实施例而已，并不用以限制本发明，凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。

Claims (8)

  1. 一种LED照明机构，包括依次布置的透镜组件、反光镜组件与LED光源件，其特征在于：
    所述透镜组件包括若干透镜件，每一所述透镜件的外壁设有第一透光区与第二透光区，所述第一透光区与所述第二透光区均设有第一突起，所述第一透光区的所述第一突起的数量等于所述第二透光区的所述第一突起的数量；
    所述反光镜组件包括若干反光镜件，每一所述反光镜件的反光内壁为曲面，所述反光内壁凸向所述反光镜组件的外侧。
  2. 根据权利要求1所述的一种LED照明机构，其特征在于：
    所述反光内壁为抛物线旋转曲面。
  3. 根据权利要求1所述的一种LED照明机构，其特征在于：
    所述反光内壁为圆球面或椭球面。
  4. 根据权利要求1所述的一种LED照明机构，其特征在于：
    所述反光内壁设有一个抛物线旋转曲面，所述抛物线旋转曲面的两侧分别设有一个圆球面或椭球面，一个所述抛物线旋转曲面与两个所述圆球面或两个所述椭球面组成所述反光内壁。
  5. 根据权利要求4所述的一种LED照明机构，其特征在于：
    所述抛物线旋转曲面为圆弧光滑过渡连接于所述圆球面或所述椭球面。
  6. 根据权利要求1所述的一种LED照明机构，其特征在于：
    所述反光内壁设有一个圆球面或一个椭球面，所述圆球面或所述椭球面的两侧分别设有一个抛物线旋转曲面，一个所述圆球面或一个所述椭球面与两个所述抛物线旋转曲面组成所述反光内壁。
  7. 根据权利要求6所述的一种LED照明机构，其特征在于：
    所述抛物线旋转曲面为圆弧光滑过渡连接于所述圆球面或所述椭球面。
  8. 根据权利要求7所述的一种LED照明机构，其特征在于：
    每一所述透镜件的内壁设有若干第二突起，所述第二突起自所述透镜件的一侧延伸至另一侧，每一所述第二突起的长度均长于与其相邻且相对于其远离所述LED光源件的所述第二突起的长度。
PCT/CN2022/120284 2021-12-31 2022-09-21 一种led照明机构 WO2023124285A1 (zh)

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