WO2022057893A1 - 照明灯具的光源系统及照明灯具 - Google Patents

照明灯具的光源系统及照明灯具 Download PDF

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Publication number
WO2022057893A1
WO2022057893A1 PCT/CN2021/119053 CN2021119053W WO2022057893A1 WO 2022057893 A1 WO2022057893 A1 WO 2022057893A1 CN 2021119053 W CN2021119053 W CN 2021119053W WO 2022057893 A1 WO2022057893 A1 WO 2022057893A1
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WIPO (PCT)
Prior art keywords
light
reflector
source system
light source
lighting fixture
Prior art date
Application number
PCT/CN2021/119053
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English (en)
French (fr)
Inventor
黄俊晖
刘超博
卜晨曦
Original Assignee
苏州欧普照明有限公司
欧普照明股份有限公司
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.)
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Publication date
Priority claimed from CN202010998490.4A external-priority patent/CN111998240A/zh
Priority claimed from CN202022082068.2U external-priority patent/CN212408319U/zh
Application filed by 苏州欧普照明有限公司, 欧普照明股份有限公司 filed Critical 苏州欧普照明有限公司
Priority to EP21868715.0A priority Critical patent/EP4215802A1/en
Publication of WO2022057893A1 publication Critical patent/WO2022057893A1/zh

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F21K9/60—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction
    • F21K9/68—Details of reflectors forming part of 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
    • F21V7/00—Reflectors for light sources
    • F21V7/0025—Combination of two or more reflectors for a single light source
    • F21V7/0033—Combination of two or more reflectors for a single light source with successive reflections from one reflector to the next or following
    • F21V7/0041—Combination of two or more reflectors for a single light source with successive reflections from one reflector to the next or following for avoiding direct view of the light source or to prevent dazzling
    • 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
    • F21V7/09—Optical design with a combination of different curvatures
    • 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
    • F21V13/04—Combinations of only two kinds of elements the elements being reflectors and refractors
    • 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
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices
    • F21V23/003—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array
    • F21V23/004—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array arranged on a substrate, e.g. a printed circuit board
    • F21V23/005—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array arranged on a substrate, e.g. a printed circuit board the substrate is supporting also the light source

Definitions

  • the invention relates to the technical field of lighting, in particular to a light source system of a lighting fixture and a lighting fixture.
  • Lighting lamps are widely used in home lighting, commercial lighting, industrial lighting, road lighting, landscape lighting, special lighting and other fields. After a long period of development, people have higher and higher performance requirements for lighting lamps, which gives lighting The structural design brings greater challenges.
  • Lighting lamps using traditional optical solutions have light directly irradiated from the illuminant. If this part of the light enters the human eye, it will cause glare problems, which will lead to an uncomfortable experience for users. Therefore, the existing lighting fixtures have the problem of poor user experience.
  • the invention discloses a light source system for a lighting fixture and the lighting fixture, which can solve the problem of poor user experience existing in the lighting fixture.
  • the present invention adopts the following technical solutions:
  • a light source system for a lighting fixture comprising a luminous body, a first reflector and a second reflector, the first reflector is at least partially sleeved in the second reflector, and the first reflector includes a first reflector. end and a second end, the first end is provided with a first light outlet, the first light outlet is located in the second reflector, the second reflector includes a third end and a fourth end, the The third end is provided with a second light outlet;
  • the luminous body is arranged in the second reflector, the second reflector has a first reflective surface facing the luminous body, and in the direction of the optical axis of the luminous body, the first reflective surface is the orthographic projection covers the orthographic projection of the illuminant;
  • the light emitted by the light-emitting body passes through at least one of the first reflector and the second reflector and is emitted from the second light outlet.
  • a lighting fixture comprising the above-mentioned light source system.
  • the light source system disclosed in the embodiments of the present invention improves the structure of the light source system of the lighting fixture in the related art, so that the light source system of the lighting fixture includes a first reflector and a second reflector, and at the same time makes the light source on the optical axis of the luminous body.
  • the orthographic projection of the first reflecting surface of the second reflector covers the orthographic projection of the luminous body, so that the luminous body is finally blocked by the second reflector.
  • the light source system of the lighting fixture disclosed in the embodiment of the present invention can normally project In the case of light, the luminous body is hidden, and finally it is difficult for the user to see the luminous body through the second light outlet, thereby achieving a better anti-glare purpose, thereby improving the user experience when using the lighting fixture.
  • FIG. 1 is a schematic structural diagram of a light source system disclosed in an embodiment of the present invention, and the arrow line in the figure is the direction of the light path;
  • FIG. 2 is a schematic structural diagram of a lighting fixture disclosed in an embodiment of the present invention.
  • 200-first reflector 210-second reflection surface, 220-first end, 221-first light outlet, 230-second end;
  • 400-light distribution 500-circuit board, 600-shell, 610-inner cavity, 620-opening, 630-bottom wall, 640-side wall, 700-mask, 800-driver.
  • an embodiment of the present invention discloses a light source system for a lighting fixture.
  • the disclosed light source system includes a luminous body 100 , a first reflector 200 and a second reflector 300 .
  • the light emitting body 100 is a light emitting device of the light source system, and the light emitting body 100 can usually be an LED light emitting body.
  • the LED light emitting body has the advantages of high brightness, low heat generation, low energy consumption and long life.
  • the luminous body 100 is disposed in the second reflector 300 .
  • at least part of the illuminating body 100 is disposed in the second reflector 300 .
  • the illuminating body 100 may all be disposed in the second reflector 300 .
  • the second reflector 300 further facilitates the reflection of more light emitted by the light-emitting body 100 by the second reflector 300 .
  • Both the first reflector 200 and the second reflector 300 are reflective devices of the light source system, and both can reflect the light emitted by the light-emitting body 100 .
  • the first reflector 200 is at least partially sleeved within the second reflector 300 .
  • the first reflector 200 includes a first end 220 and a second end 230 , the first end 220 is provided with a first light outlet 221 , the first light outlet 221 is located in the second reflector 300 , and the light reflected by the first reflector 200 It can be emitted from the first light outlet 221 .
  • the second end 230 of the first reflector 200 may be located inside the second reflector 300 or outside the second reflector 300 .
  • the second reflector 300 includes a third end 340 and a fourth end 350 .
  • the third end 340 of the second reflector 300 is provided with a second light outlet 341 , and the light reflected by the second reflector 300 can be emitted from the second light outlet 341 .
  • the second reflector 300 has a first reflective surface 310 facing the luminous body 100 .
  • the orthographic projection of the first reflective surface 310 covers the orthographic projection of the luminous body 100 , so that the orthographic projection of the first reflective surface 310 covers the orthographic projection of the luminous body 100 .
  • the light emitted by the light-emitting body 100 may pass through at least one of the first reflector 200 and the second reflector 300 and then be emitted from the second light outlet 341 , and finally realize the lighting of the lighting fixture. As shown in FIG. 1 , a part of the light emitted by the light-emitting body 100 may pass through the first reflecting surface 310 and the first reflector 200 in sequence and then be projected from the second light outlet 341 . Another part of the light emitted by the light-emitting body 100 can be reflected by the second reflector 300 and then projected from the second light outlet 341 .
  • the structures of the first reflector 200 and the second reflector 300 can be designed so that there is no part of the light emitted by the light-emitting body 100 that is directly emitted without being reflected by the first reflector 200 and the second reflector 300 .
  • the light source system disclosed in the embodiment of the present invention improves the structure of the light source system of the lighting fixture in the related art, so that the light source system of the lighting fixture includes the first reflector 200 and the second reflector 300, and at the same time makes the light source 100 In the direction of the optical axis of the second reflector 300, the orthographic projection of the first reflecting surface 310 of the second reflector 300 covers the orthographic projection of the luminous body 100, so that the luminous body 100 can finally be blocked by the second reflector 300.
  • the lighting fixture disclosed in the embodiment of the present invention Under the condition that the light source system can project light normally, the illuminant 100 can be hidden, so that it is difficult for the user to see the illuminator 100 through the second light outlet 341, so as to achieve a better anti-glare purpose. Improve user experience when using lighting fixtures.
  • the structure of the first reflector 200 may be various.
  • the area of the cross section of the first reflector 200 decreases in the first direction.
  • the first direction here refers to the direction in which the first light outlet 221 extends to the second light outlet 341
  • the cross section of the first reflector 200 is a cross section perpendicular to the first direction.
  • the outline size of the first reflector 200 is gradually reduced, so that more light can be directly projected onto the second reflector 300 on the basis of ensuring the reflection effect, and finally the second reflector 300 is directly projected from the second light outlet 341 .
  • the first reflector 200 can also have other structures, as long as it can ensure that the light projected on it can be reflected to the second light outlet 341 and then projected from the second light outlet 341 or can be reflected to the second reflector 300 The second reflector 300 may then be reflected to the second light outlet 341 , and the embodiment of the present invention does not limit the specific shape of the first reflector 200 .
  • the second reflector 300 may have various structures. Please refer to FIG. 1 again.
  • the second reflector 300 may include a first reflector 320 and a The second reflecting portion 330, the first reflecting portion 320 and the second reflecting portion 330 are arranged in sequence along the aforementioned first direction. In the first direction, the cross-sectional area of the first reflecting portion 320 decreases, and the The cross-sectional area increases, the light-emitting body 100 can be disposed in the first reflection part 320, the first reflection part 320 is provided with the first reflection surface 310 described above, and the second light outlet 341 is opened in the second reflection part 330 away from the first reflection part 330. The end of the reflection part 320 .
  • Such a structure makes it easier to form a shielding structure, thereby realizing shielding of the light-emitting body 100 .
  • the light-emitting body 100 may be disposed in the end of the first reflecting portion 320 away from the second reflecting portion 330 .
  • This structure enables the light-emitting body 100 to be closer to the fourth end 350 of the second reflector 300 , and furthermore This facilitates the arrangement of the light-emitting body 100 ; at the same time, the fourth end 350 of the second reflector 300 is further away from the second light outlet 341 , which makes it easier to shield the light-emitting body 100 .
  • the luminous body 100 may be configured to be adjacent to the edge of the first reflection part 320 , so that the end of the first reflection part 320 connected to the second reflection part 330 is closer to the optical axis of the luminous body 100 relative to the luminous body 100 , At this time, more parts of the first reflecting portion 320 can shield the light-emitting body 100 , which is more beneficial to the shielding of the light-emitting body 100 by the first reflecting surface 310 .
  • first reflection portion 320 and the second reflection portion 330 may be an integral structure, or may be fixedly connected by assembly.
  • the embodiment of the present invention does not limit the specific fixing manner of the first reflection portion 320 and the second reflection portion 330 .
  • the first reflector 200 is sleeved within the second reflector 300 .
  • the first end 220 of the first reflector 200 may be located in the second reflecting portion 330, and at this time, the size of the first reflector 200 is larger, so that the light emitted by the light-emitting body 100 can be better reflected.
  • the light is reflected into the second reflection portion 330 , and finally the second reflection portion 330 reflects the light from the second light outlet 341 .
  • the cross-sectional area of one end of the first reflecting portion 320 connected to the second reflecting portion 330 is the first area
  • the cross-sectional area of the other end of the first reflecting portion 320 is the second area
  • the first The ratio between the area and the second area may be 0.6-0.9.
  • connection line between the first light outlet 221 and the second light outlet 341 and the first direction is less than or equal to 45°. This arrangement can make the second light outlet 341 converge as far as possible relative to the first light outlet 221, even if the light emitted by the light-emitting body 100 is not reflected by the first reflector 200, it will be reflected by the second reflector 300, thereby improving the light source system. light effect.
  • the first reflector 200 plays a role of reflection
  • the first reflector 200 may have a second reflecting surface 210 facing the light-emitting body 100
  • the second reflecting surface 210 may be a cone surface
  • the second reflective surface 210 can be an arc surface
  • the second reflective surface 210 can be curved toward the side away from the light-emitting body 100.
  • This structure can increase the area of the second reflective surface 210, and more light can be reach the second reflective surface 210 and then be reflected by the second reflective surface 210 .
  • the second reflecting surface 210 can reflect more light to the second reflector 300, so that the uniform light effect of the entire light source system is better.
  • the second end 230 of the first reflector 200 may be located outside the second reflector 300, so as to prevent the first reflector 200 from being entirely located inside the second reflector 300, which may cause damage to the second reflector 300.
  • the internal space of the reflector 300 occupies a larger problem, so it is more favorable for reflecting light.
  • the number of the light-emitting body 100 may be one, or at least two.
  • the number of the light-emitting bodies 100 may be at least two, and the light-emitting bodies 100 are arranged along the circumferential direction of the second reflector 300 , and finally a ring-shaped light-emitting structure can be formed to achieve multiple Directional uniform glow effect.
  • the light source system disclosed in the embodiments of the present invention may further include at least one light distribution member 400 , the light distribution member 400 is covered outside the luminous body 100 , and the light distribution member 400 can reflect the light emitted by the luminous body 100 .
  • the light distribution member 400 may be a uniform light device or a light condensing device, and the embodiment of the present invention does not limit the specific type of the light distribution member 400 .
  • the number of the above-mentioned light distribution members 400 may be one, or at least two, and the light distribution member 400 may only cover a part of the illuminants 100, but in order to avoid mutual interference, the light distribution
  • the number of components 400 is equal to the number of luminous bodies 100, each light distribution component 400 is covered on a luminous body 100, that is to say, each luminous body 100 is individually configured with a light distribution component 400 for its individual light distribution , the light distribution member 400 is covered outside the light-emitting body 100, so that the optical interference between the light-emitting bodies 100 can be alleviated, and the light distribution effect of each light-emitting body 100 can be improved at the same time, so that the light effect of the whole light source system is better. .
  • the plurality of light distribution members 400 may be of an integrated structure. During the assembly process, a plurality of light distribution components 400 are assembled as a whole, and no single installation is required, thereby facilitating assembly and improving assembly efficiency.
  • the light distribution member 400 can also be a ring-shaped member, and the same light distribution member 400 covers a plurality of light-emitting bodies 100 arranged along the same circumferential direction. In this embodiment, the number of the light distribution members 400 can be reduced, thereby facilitating the Quickly assemble the light source system.
  • the light distribution member 400 may be a lens, specifically a convex lens, a concave lens, or a lens group.
  • the lens has a better light distribution effect and a relatively simple structure.
  • the light distribution member 400 may be a plano-convex lens, or a cover-shaped lens with an accommodating space.
  • the light-emitting body 100 may be located in the accommodating space.
  • the light distribution member The 400 can not only play a role in light distribution, but also play a role in protecting the light-emitting body 100 .
  • the fourth end 350 of the second reflector 300 is an open end. Specifically, in the light source system disclosed in the embodiment of the present invention, the port of the fourth end 350 of the second reflector 300 can be blocked There is a circuit board 500 , the light-emitting body 100 can be fixed on the circuit board 500 , and the circuit board 500 provides a mounting position for the light-emitting body 100 . Specifically, the light-emitting body 100 may be electrically connected to the circuit board 500 , and then powered by the circuit board 500 .
  • the circuit board 500 can be fixedly connected with the second reflector 300, and the second reflector 300 can be assembled with the circuit board 500 as the installation base during the assembly process of the entire lighting fixture. At the same time, the circuit board 500 can also block the port of the fourth end 350 of the second reflector 300 , thereby preventing the light emitted by the light-emitting body 100 from leaking from the port of the fourth end 350 of the second reflector 300 .
  • a heat dissipation seat is provided on the side of the circuit board 500 away from the light-emitting body 100 , and the heat dissipation seat can play a role of heat dissipation.
  • the heat sink can be made of a material capable of efficiently dissipating heat, for example, the heat sink can be a stainless steel heat sink or an aluminum heat sink.
  • the heat dissipation base can be designed as a mechanism that can easily dissipate heat.
  • the heat dissipation base includes a plurality of heat dissipation pins or heat dissipation fins distributed in an array.
  • the heat sink can be directly bonded and fixed with the circuit board 500 through the thermally conductive adhesive layer.
  • the heat generated by the circuit board 500 and the light-emitting body 100 disposed on it during operation can be quickly transmitted to the heat dissipation through the thermally conductive adhesive layer. Finally, it is transmitted to the entire lighting fixture through the heat dissipation base to achieve the purpose of rapid heat dissipation.
  • the embodiment of the present invention further discloses a lighting fixture, and the disclosed lighting fixture includes the light source system described in the above embodiments.
  • the lighting fixture disclosed in the embodiment of the present invention may be a downlight, a spotlight, and the like, and the embodiment of the present invention does not limit the specific type of the lighting fixture.
  • the lighting fixture disclosed in the embodiment of the present invention may further include a circuit board 500 and a casing 600, the illuminant 100 is disposed on the circuit board 500, and the circuit board 500 is disposed on the bottom wall 630 of the casing 600, thereby The mounting strength of the circuit board 500 is improved.
  • the light-emitting body 100 may be located between the side wall 640 of the housing 600 and the first reflector 200 ; or, the light-emitting body 100 may be located between the second reflector 300 and the first reflector 200 .
  • the second reflector 300 can surround the light-emitting body 100 to better reflect light.
  • the lighting fixture may further include a mask 700, the housing 600 has an inner cavity 610 and an opening 620, the mask 700 is installed at the opening 620, and the mask 700 and the housing 600 enclose an optical cavity, the light source system is arranged in the light source cavity, That is, both the first reflector 200 and the second reflector 300 are disposed in the optical cavity, and the orientation of the first light outlet 221 is consistent with the orientation of the opening 620 .
  • the light emitted by the light-emitting body 100 is reflected by the first reflector 200 and the second reflector 300 and then emitted from the mask 700 , and the mask 700 can further improve the uniform light effect of the lighting fixture.
  • the second reflector 300 may be fixed between the mask 700 and the bottom wall 630 of the housing 600 ; or, the second reflector 300 may be fixed between the mask 700 and the circuit board 500 . Both of these two setting methods can better ensure that the light is reflected and then emitted through the mask 700, thereby improving the light efficiency of the lighting fixture.
  • the lighting fixture may also include a driver 800 , and the driver 800 is disposed on the circuit board 500 .
  • the driver 800 may be disposed on the side of the circuit board 500 facing the first light outlet 221 , or may be disposed on the side of the circuit board 500 away from the first light outlet 221 , which is not limited in this embodiment of the present invention.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Optics & Photonics (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

一种照明灯具的光源系统及照明灯具，光源系统包括发光体（100）、第一反射器（200）和第二反射器（300），第一反射器（200）至少部分套设于第二反射器（300）内，第一反射器（200）包括第一端（220）和第二端（230），第一端（220）设有第一出光口（221），第一出光口（221）位于第二反射器（300）内，第二反射器（300）包括第三端（340）和第四端（350），第三端（340）设有第二出光口（341）；发光体（100）设置于第二反射器（300）内，第二反射器（300）具有朝向发光体（100）的第一反射面（310），在发光体（100）的光轴方向上，第一反射面（310）的正投影覆盖发光体（100）的正投影；发光体（100）发出的光线经过第一反射器（200）和第二反射器（300）中的至少一者后自第二出光口（341）射出，从而可解决照明灯具存在的用户体验较差的问题。

Description

照明灯具的光源系统及照明灯具 技术领域
本发明涉及照明技术领域，尤其涉及一种照明灯具的光源系统及照明灯具。
背景技术
照明灯具广泛应用于家居照明、商业照明、工业照明、道路照明、景观照明、特种照明等多个领域，经过长时间的发展，人们对照明灯具的性能要求越来越高，这就给照明灯具的结构设计带来了更大的挑战。
采用传统光学方案的照明灯具存在从发光体直接照射出来的光线，这部分光线如果进入人眼中，会产生眩光问题，进而导致用户出现不舒服的体验感。因此，现有照明灯具存在用户体验较差的问题。
发明内容
本发明公开一种照明灯具的光源系统及照明灯具，能够解决照明灯具存在的用户体验较差的问题。
为了解决上述问题，本发明采用下述技术方案：
一种照明灯具的光源系统，包括发光体、第一反射器和第二反射器，所述第一反射器至少部分套设于所述第二反射器内，所述第一反射器包括第一端和第二端，所述第一端设有第一出光口，所述第一出光口位于所述第二反射器内，所述第二反射器包括第三端和第四端，所述第三端设有第二出光口；
所述发光体设置于所述第二反射器内，所述第二反射器具有朝向所述发光体的第一反射面，在所述发光体的光轴方向上，所述第一反射面的正投影 覆盖所述发光体的正投影；
所述发光体发出的光线经过所述第一反射器和所述第二反射器中的至少一者后自所述第二出光口射出。
一种照明灯具，包括上述光源系统。
本发明采用的技术方案能够达到以下有益效果：
本发明实施例公开的光源系统，通过对相关技术中的照明灯具的光源系统的结构进行改进，使得照明灯具的光源系统包括第一反射器和第二反射器，同时使得在发光体的光轴方向上，第二反射器的第一反射面的正投影覆盖发光体的正投影，最终能够使得发光体被第二反射器遮挡，本发明实施例公开的照明灯具的光源系统在能够正常投射出光线的情况下，实现发光体的隐藏，最终使得用户透过第二出光口较难看到发光体，进而能够达到较好的防眩光的目的，以此改善用户使用照明灯具时的用户体验。
附图说明
为了更清楚地说明本发明实施例或背景技术中的技术方案，下面将对实施例或背景技术中所需要使用的附图作简单的介绍，显而易见地，对于本领域普通技术人员而言，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。
图1为本发明实施例公开的光源系统的结构示意图，图中的箭头线为光路方向；
图2为本发明实施例公开的照明灯具的结构示意图。
附图标记说明：
100-发光体；
200-第一反射器、210-第二反射面、220-第一端、221-第一出光口、230-第二端；
300-第二反射器、310-第一反射面、320-第一反射部、330-第二反射部、340-第三端、341-第二出光口、350-第四端；
400-配光件、500-电路板、600-壳体、610-内腔、620-开口、630-底壁、640-侧壁、700-面罩、800-驱动器。
具体实施方式
为使本发明的目的、技术方案和优点更加清楚，下面将结合本发明具体实施例及相应的附图对本发明技术方案进行清楚、完整地描述。显然，所描述的实施例仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，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，都属于本发明保护的范围。
以下结合附图，详细说明本发明各个实施例公开的技术方案。
如图1和图2所示，本发明实施例公开一种照明灯具的光源系统，所公开的光源系统包括发光体100、第一反射器200和第二反射器300。
发光体100为光源系统的发光器件，发光体100通常可以为LED发光体，LED发光体具有亮度较高、发热量较低、能耗较低以及寿命较长的优点。在本发明实施例中，发光体100设置于第二反射器300内，具体的，发光体100的至少部分设置于第二反射器300内，具体的，发光体100可以全部设置于第二反射器300内，进而有利于使得发光体100发出的光线更多地被第二反射器300反射。
第一反射器200和第二反射器300均是光源系统的反射器件，两者能够对发光体100发出的光线进行反射。第一反射器200至少部分套设于第二反 射器300内。第一反射器200包括第一端220和第二端230，第一端220设有第一出光口221，第一出光口221位于第二反射器300内，经第一反射器200反射的光线可以从第一出光口221射出。可选地，第一反射器200的第二端230可以位于第二反射器300内，也可以位于第二反射器300之外。
第二反射器300包括第三端340和第四端350。第二反射器300的第三端340开设有第二出光口341，经第二反射器300反射的光线可以从第二出光口341射出。第二反射器300具有朝向发光体100的第一反射面310，在发光体100的光轴方向上，第一反射面310的正投影覆盖发光体100的正投影，进而使得在正对第二出光口341的位置观察时，由于第一反射面310的遮挡，用户无法看到发光体100。
发光体100发出的光线可经过第一反射器200和第二反射器300中的至少一者后自第二出光口341射出，最终实现照明灯具的照明。如图1所示，发光体100发出的一部分光线可依次经过第一反射面310和第一反射器200后从第二出光口341投射出。发光体100发出的另一部分光线可经第二反射器300反射后从第二出光口341投射出。具体的，可以通过设计第一反射器200和第二反射器300的结构，使得发光体100发出的光线中不存在未经第一反射器200和第二反射器300反射而直接射出的部分。
本发明实施例公开的光源系统，通过对相关技术中的照明灯具的光源系统的结构进行改进，使得照明灯具的光源系统包括第一反射器200和第二反射器300，同时使得在发光体100的光轴方向上，第二反射器300的第一反射面310的正投影覆盖发光体100的正投影，最终能够使得发光体100被第二反射器300遮挡，本发明实施例公开的照明灯具的光源系统在能够正常投射出光线的情况下，实现发光体100的隐藏，最终使得用户透过第二出光口341较难看到发光体100，进而能够达到较好的防眩光的目的，以此改善用户使用照明灯具时的用户体验。
在本发明实施例中，第一反射器200的结构可以有多种。一种可选的方 案中，在第一方向上，第一反射器200的横截面的面积递减。需要说明的是，这里的第一方向指的是第一出光口221向第二出光口341延伸的方向，第一反射器200的横截面为垂直于第一方向的截面。此种情况下，第一反射器200的轮廓尺寸逐渐减小，从而能够在确保反射作用的基础上，确保较多的光线能够直接被投射到第二反射器300上，最终由第二反射器300直接从第二出光口341投射而出。此种结构更有利于缩短部分光线射出过程中的光程，进而能够减小光线的能量损失。当然，第一反射器200还可以为其它结构，只要能够确保投射到其上的光线能够被反射至第二出光口341后从第二出光口341投射出或者能够被反射至第二反射器300后由第二反射器300反射至第二出光口341即可，本发明实施例不限制第一反射器200的具体形状。
同理，第二反射器300的结构可以有多种，请再次参考图1，一种可选的方案中，第二反射器300可以包括第一反射部320以及与第一反射部320相连的第二反射部330，第一反射部320和第二反射部330沿前述的第一方向依次排布，在第一方向上，第一反射部320的横截面面积递减，第二反射部330的横截面面积递增，发光体100可以设置于第一反射部320内，第一反射部320设有前文所述的第一反射面310，第二出光口341开设在第二反射部330背离第一反射部320的端部。此种结构更容易形成遮挡结构，从而实现对发光体100的遮挡。
在进一步的技术方案中，发光体100可以设置于第一反射部320背离第二反射部330的一端内，此种结构使得发光体100更靠近第二反射器300的第四端350，进而更方便对发光体100的布设；与此同时，第二反射器300的第四端350距离第二出光口341更远，更容易实现发光体100的遮挡。更进一步地，发光体100可以被配置为邻近第一反射部320的边缘，使得第一反射部320的与第二反射部330相连的一端相对于发光体100更靠近发光体100的光轴，此时第一反射部320的更多部分可以遮挡发光体100，进而更有利于第一反射面310对发光体100的遮挡。
具体的，第一反射部320与第二反射部330可以为一体式结构，也可以通过装配固定相连，本发明实施例不限制第一反射部320与第二反射部330的具体固定方式。
如上文所述，第一反射器200的至少部分套设于第二反射器300内。一种可选的方案中，第一反射器200的第一端220可以位于第二反射部330内，此时第一反射器200的尺寸更大，从而能够较好地将发光体100发出的光线反射至第二反射部330内，最终由第二反射部330接着将光线从第二出光口341反射出。
一种可选的方案中，第一反射部320与第二反射部330相连的一端的横截面面积为第一面积，第一反射部320的另一端的横截面面积为第二面积，第一面积与第二面积之间的比值可以为0.6～0.9。此种结构能够使得第一反射部320的渐缩程度不至于过大而影响光源系统的出光量，同时又能够对发光体100实施较好的遮挡。
为了保证发光体100发出的光线能够被可靠地反射，在平行于前文所述第一方向的截面内，第一出光口221与第二出光口341之间的连线与第一方向之间的夹角α小于或等于45°。如此设置可以使得第二出光口341相对于第一出光口221尽量收敛，即使发光体100发出的光线未被第一反射器200反射，也会被第二反射器300反射，从而改善光源系统的光效。
如上文所述，第一反射器200起到反射的作用，第一反射器200可以具有朝向发光体100的第二反射面210，该第二反射面210可以是锥面，一种可选的方案中，第二反射面210可以为弧面，第二反射面210可以向着远离发光体100的一侧弯曲，此种结构能够使得第二反射面210的面积有所增加，更多的光线可以到达第二反射面210，进而被第二反射面210反射。与此同时，该第二反射面210可以将更多的光线反射至第二反射器300，从而使得整个光源系统的匀光效果更好。
一种具体的实施方式中，第一反射器200的第二端230可以位于第二反 射器300之外，从而避免第一反射器200全部位于第二反射器300之内，而导致对第二反射器300的内部空间占用较大的问题，从而更有利于反射光线。
在本发明实施例中，发光体100的数量可以为一个，也可以为至少两个。为了提高照明强度，一种可选的方案中，发光体100的数量可以为至少两个，各发光体100沿第二反射器300的周向排布，最终能够形成环状发光结构，实现多方向的均匀发光效果。
在进一步的技术方案中，本发明实施例公开的光源系统还可以包括至少一个配光件400，配光件400罩设在发光体100的外部，配光件400可以对发光体100发出的光线进行配光，配光件400可以为匀光器件，也可以为聚光器件，本发明实施例不限制配光件400的具体种类。
一种可选的方案中，上述配光件400的数量可以为一个，也可以为至少两个，配光件400可以仅罩设一部分发光体100，但是为了避免相互之间的干扰，配光件400的数量与发光体100的数量相等，每个配光件400均罩设在一个发光体100上，也就是说，每个发光体100单独配置有一个配光件400为其单独配光，该配光件400罩设在发光体100的外部，从而能够缓解发光体100相互之间的光学干扰，同时还可以改善各个发光体100的配光效果，使得整个光源系统的光效更优。
一种优选的方案中，所述的多个配光件400可以为一体式结构。在组装的过程中，多个配光件400整体进行装配，无需单个安装，进而能够方便组装及提高装配效率。
在其他实施例中，配光件400也可以为环形件，同一个配光件400覆盖沿同一圆周方向排布的多个发光体100，此实施例可以降低配光件400的数量，从而便于快速组装光源系统。
可选地，配光件400可以是透镜，具体可以是凸透镜，也可以是凹透镜，也可以是透镜组，透镜具有较好的配光效果，且结构比较简单。在进一步的技术方案中，配光件400可以为平凸透镜，也可以为具有容纳空间的罩状透 镜，具体的，发光体100可以位于该容纳空间之内，在此种情况下，配光件400不但能够发挥配光作用，还能够发挥保护发光体100的作用。
在本发明实施例中，第二反射器300的第四端350为敞口端，具体的，本发明实施例公开的光源系统中，第二反射器300的第四端350的端口可以封堵有电路板500，发光体100可以固定在电路板500上，电路板500为发光体100提供安装位置。具体的，发光体100可以与电路板500电连接，进而由电路板500供电。
在进一步的技术方案中，电路板500可以与第二反射器300固定相连，在整个照明灯具的组装过程中，第二反射器300可以以电路板500为安装基础进行组装。与此同时，电路板500还能够封堵第二反射器300的第四端350的端口，进而避免发光体100发出的光线从第二反射器300的第四端350的端口漏出。
在进一步的技术方案中，电路板500背离发光体100的一侧设置有散热座，散热座能够起到散热的作用。散热座可以由能够高效散热的材料制成，例如散热座可以是不锈钢散热座，或铝材散热座。或者，散热座可以设计成较容易散热的机构，例如，散热座包括呈阵列分布的多个散热针或散热片。
散热座可以直接与电路板500通过导热胶层粘接固定，在此种情况下，电路板500及其上设置的发光体100在工作时产生的热量能够较快地通过导热胶层传输至散热座上，最终通过散热座传输至整个照明灯具，达到快速散热的目的。
基于本发明实施例公开的光源系统，本发明实施例还公开一种照明灯具，所公开的照明灯具包括上文实施例所述的光源系统。
本发明实施例公开的照明灯具可以为筒灯、射灯等，本发明实施例不限制照明灯具的具体种类。
一种可选的方案中，本发明实施例公开的照明灯具还可以包括电路板500和壳体600，发光体100设置于电路板500，电路板500设置于壳体600 的底壁630，从而提升电路板500的安装强度。此时，发光体100可以位于壳体600的侧壁640与第一反射器200之间；或者，发光体100位于第二反射器300与第一反射器200之间。相对而言，当发光体100位于第二反射器300与第一反射器200之间时，第二反射器300可以包围发光体100，从而更好地反射光线。
进一步地，照明灯具还可以包括面罩700，壳体600具有内腔610和开口620，面罩700安装在开口620处，且面罩700与壳体600围成光学腔，光源系统设置在光源腔中，即第一反射器200和第二反射器300均设置于光学腔内，且第一出光口221的朝向与开口620的朝向一致。发光体100发出的光线经第一反射器200和第二反射器300反射后自面罩700射出，该面罩700可以进一步改善照明灯具的匀光效果。
可选地，第二反射器300可以固定于面罩700与壳体600的底壁630之间；或者，第二反射器300固定于面罩700与电路板500之间。这两种设置方式都可以更好地保证光线经过反射后再穿过面罩700而射出，进而改善照明灯具的光效。
为了更好地实现光源系统的驱动，照明灯具除了包括电路板500以外，还可以包括驱动器800，该驱动器800设置于电路板500。可选地，驱动器800可以设置于电路板500朝向第一出光口221的一侧，也可以设置于电路板500背离第一出光口221的一侧，本发明实施例对此不作限制。
本发明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。
以上所述仅为本发明的实施例而已，并不用于限制本发明。对于本领域技术人员来说，本发明可以有各种更改和变化。凡在本发明的精神和原理之内所作的任何修改、等同替换、改进等，均应包含在本发明的权利要求范围之内。

Claims (20)

  1. 一种照明灯具的光源系统，其中，包括发光体(100)、第一反射器(200)和第二反射器(300)，所述第一反射器(200)至少部分套设于所述第二反射器(300)内，所述第一反射器(200)包括第一端(220)和第二端(230)，所述第一端(220)设有第一出光口(221)，所述第一出光口(221)位于所述第二反射器(300)内，所述第二反射器(300)包括第三端(340)和第四端(350)，所述第三端(340)设有第二出光口(341)；
    所述发光体(100)设置于所述第二反射器(300)内，所述第二反射器(300)具有朝向所述发光体(100)的第一反射面(310)，在所述发光体(100)的光轴方向上，所述第一反射面(310)的正投影覆盖所述发光体(100)的正投影；
    所述发光体(100)发出的光线经过所述第一反射器(200)和所述第二反射器(300)中的至少一者后自所述第二出光口(341)射出。
  2. 根据权利要求1所述的光源系统，其中，所述第一出光口(221)向所述第二出光口(341)延伸的方向为第一方向，
    在所述第一方向上，所述第一反射器(200)的横截面面积递减。
  3. 根据权利要求2所述的光源系统，其中，所述第二反射器(300)包括第一反射部(320)以及与所述第一反射部(320)相连的第二反射部(330)，所述第一反射部(320)和所述第二反射部(330)沿所述第一方向依次排布，在所述第一方向上，所述第一反射部(320)的横截面面积递减，所述第二反射部(330)的横截面面积递增，所述发光体(100)设置于所述第一反射部 (320)内，所述第一反射部(320)设有所述第一反射面(310)。
  4. 根据权利要求3所述的光源系统，其中，所述发光体(100)设置于所述第一反射部(320)背离所述第二反射部(330)的一端内。
  5. 根据权利要求4所述的光源系统，其中，所述发光体(100)被配置为邻近所述第一反射部(320)的边缘。
  6. 根据权利要求3所述的光源系统，其中，所述第一反射器(200)的第一端(220)位于所述第二反射部(330)内。
  7. 根据权利要求2所述的光源系统，其中，所述第一反射部(320)与所述第二反射部(330)相连的一端的横截面面积为第一面积，所述第一反射部(320)的另一端的横截面面积为第二面积，所述第一面积与所述第二面积之间的比值为0.6～0.9。
  8. 根据权利要求1所述的光源系统，其中，所述第一出光口(221)向所述第二出光口(341)延伸的方向为第一方向，
    在平行于所述第一方向的截面内，所述第一出光口(221)与所述第二出光口(341)之间的连线与所述第一方向之间的夹角小于或等于45°。
  9. 根据权利要求1所述的光源系统，其中，所述第一反射器(200)具有朝向所述发光体(100)的第二反射面(210)，所述第二反射面(210)为弧面，所述第二反射面(210)向远离所述发光体(100)的一侧弯曲。
  10. 根据权利要求1所述的光源系统，其中，所述第一反射器(200)的 第二端(230)位于所述第二反射器(300)之外。
  11. 根据权利要求1所述的光源系统，其中，所述发光体(100)的数量为至少两个，各所述发光体(100)沿所述第二反射器(300)的周向排布。
  12. 根据权利要求11所述的光源系统，其中，所述光源系统还包括至少一个配光件(400)，所述配光件(400)罩设于所述发光体(100)的外部。
  13. 根据权利要求12所述的光源系统，其中，所述配光件(400)的数量为至少两个，且所述配光件(400)的数量与所述发光体(100)的数量相等，每个所述发光体(100)的外部均罩设一个所述配光件(400)；或者，
    所述配光件(400)为环形件，同一个所述配光件(400)覆盖沿同一圆周方向排布的多个所述发光体(100)。
  14. 根据权利要求12所述的光源系统，其中，所述配光件(400)为透镜。
  15. 一种照明灯具，其中，包括权利要求1至14中任一项所述的光源系统。
  16. 根据权利要求15所述的照明灯具，其中，所述照明灯具还包括电路板(500)和壳体(600)，所述发光体(100)设置于所述电路板(500)，所述电路板(500)设置于所述壳体(600)的底壁(630)，
    所述发光体(100)位于所述壳体(600)的侧壁(640)与所述第一反射器(200)之间；或者，所述发光体(100)位于所述第二反射器(300)与所述第一反射器(200)之间。
  17. 根据权利要求16所述的照明灯具，其中，所述照明灯具还包括面罩(700)，所述壳体(600)具有开口(620)，所述面罩(700)安装在所述开口(620)处，且所述面罩(700)与所述壳体(600)围成光学腔，所述第一反射器(200)和所述第二反射器(300)均设置于所述光学腔内。
  18. 根据权利要求17所述的照明灯具，其中，所述第二反射器(300)固定于所述面罩(700)与所述壳体(600)的底壁(630)之间；或者，所述第二反射器(300)固定于所述面罩(700)与所述电路板(500)之间。
  19. 根据权利要求16所述的照明灯具，其中，所述照明灯具还包括电路板(500)和驱动器(800)，所述发光体(100)设置于所述电路板(500)，所述电路板(500)设置于所述壳体(600)的底壁(630)，所述驱动器(800)设置于所述电路板(500)。
  20. 根据权利要求15所述的照明灯具，其中，所述照明灯具为筒灯或者射灯。
PCT/CN2021/119053 2020-09-21 2021-09-17 照明灯具的光源系统及照明灯具 WO2022057893A1 (zh)

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