WO2023274199A1 - 一种防眩光照明灯具 - Google Patents

一种防眩光照明灯具 Download PDF

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Publication number
WO2023274199A1
WO2023274199A1 PCT/CN2022/101773 CN2022101773W WO2023274199A1 WO 2023274199 A1 WO2023274199 A1 WO 2023274199A1 CN 2022101773 W CN2022101773 W CN 2022101773W WO 2023274199 A1 WO2023274199 A1 WO 2023274199A1
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WIPO (PCT)
Prior art keywords
light
light source
lighting fixture
outlet
source board
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Application number
PCT/CN2022/101773
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English (en)
French (fr)
Inventor
李京蔓
Original Assignee
苏州欧普照明有限公司
欧普照明股份有限公司
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Priority claimed from CN202110742420.7A external-priority patent/CN113375087A/zh
Priority claimed from CN202121489379.9U external-priority patent/CN214840383U/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
Publication of WO2023274199A1 publication Critical patent/WO2023274199A1/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
    • F21S8/00—Lighting devices intended for fixed installation
    • 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
    • F21V19/00—Fastening of light sources or lamp holders
    • 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

Definitions

  • the invention relates to the lighting field, in particular to an anti-glare lighting fixture.
  • a table lamp can achieve a better lighting effect when illuminating books placed on the table.
  • display devices such as mobile phones and tablet computers can emit light by themselves, this makes the light irradiated by the desk lamp on the display screen reflect, commonly known as glare. As shown in Figure 1, this glare not only makes the lighting effect poor, but also affects people's vision health after long-term use.
  • the purpose of the embodiments of the present application is to provide an anti-glare lighting fixture, which is used to alleviate the glare problem of the display device caused by the lighting lamps near the display device.
  • This embodiment provides an anti-glare lighting fixture, comprising:
  • a plurality of light source boards, optical reflectors and light protection covers wherein,
  • the light-exit protective cover is used to fix the relative position between the optical reflector and the plurality of light source panels, and the light-exit protective cover is provided with a light-exit port;
  • the optical reflector is an optical reflector with a curved surface, which is used to reflect at least part of the incident light to the light outlet;
  • Each light source board in the plurality of light source boards faces the reflective surface of the optical reflector, and the plurality of light source boards include at least two light source boards arranged non-parallel, so as to pass through the optical reflector to the reflection surface of the optical reflector.
  • the light outlet reflects at least two asymmetric lights with different light distribution curves.
  • At least one light emitting diode is arranged on the light source board.
  • the light-emitting diode is a Lambertian illuminant with a light distribution of 120 degrees.
  • a light source installation area is arranged in the plane where the light outlet is located, the light source installation area is arranged side by side with the area where the light outlet is located, and the plurality of light source panels are arranged in the light source installation area;
  • the projection of the optical reflector on the plane where the light outlet is located covers the light source installation area and the area where the light outlet is located.
  • the plurality of light source boards include at least one near-field light source board and at least one far-field light source board, and the degree of polarization of the asymmetric light emitted by the near-field light source board through the light outlet is smaller than that of the far-field light source board through the light outlet.
  • the degree of polarization of the asymmetric light emitted from the light outlet, and the light distribution angle of the asymmetric light emitted by the near-field light source board through the light outlet is greater than the light distribution angle of the asymmetric light emitted by the far-field light source board through the light outlet.
  • the angle between the plane where the near-field light source board is located and the plane where the far-field light source board is located is greater than or equal to 45° and less than or equal to 90°.
  • the lighting fixtures also include:
  • the extension direction of the plurality of strip-shaped light source panels of the illuminating lamp fixed on the display screen is parallel to the plane where the display screen is located.
  • the lighting fixtures also include:
  • control module can separately control the luminous brightness and/or color temperature of the connected light source boards.
  • the anti-glare lighting fixture provided in the embodiment of the present application includes: a plurality of light source boards, an optical reflector, and a light-emitting protection cover, wherein the light-emitting protection cover is used to fix the connection between the optical reflector and the plurality of light source boards.
  • the relative position between the light outlet protective cover is provided with a light outlet;
  • the optical reflector is an optical reflector with a curved surface, which is used to reflect at least part of the incident light to the light outlet;
  • the plurality of light source boards Each light source board faces the reflective surface of the optical reflector, and the plurality of light source boards include at least two light source boards arranged non-parallel, so that at least two light source boards are reflected to the light outlet through the optical reflector.
  • Asymmetric light with different light distribution curves the light emitted by the light source board is reflected by the reflector and then emitted to the lighting lamp, so that the emitted light forms asymmetric light and effectively alleviates glare.
  • Multiple light source panels with different light distribution curves can illuminate multiple different areas, making the lighting light soft and optimizing the lighting effect.
  • Figure 1 is a schematic diagram of a scene including a display illuminated by a desk lamp.
  • Fig. 2a is one of the structural schematic diagrams of an anti-glare lighting fixture provided by an embodiment of the present application.
  • Fig. 2b is a schematic structural diagram of a light source board in an anti-glare lighting fixture provided by an embodiment of the present application.
  • Fig. 3 is the second structural schematic diagram of an anti-glare lighting fixture provided by an embodiment of the present application.
  • Fig. 4a is the third structural schematic diagram of an anti-glare lighting fixture provided by the embodiment of the present application.
  • Fig. 4b is a schematic diagram of a light distribution curve of a far-field light source board of an anti-glare lighting fixture provided by an embodiment of the present application.
  • Fig. 4c is a schematic diagram of a light distribution curve of a near-field light source board of an anti-glare lighting fixture provided by an embodiment of the present application.
  • Fig. 4d is a schematic diagram of light distribution curves of a far-field light source board and a near-field light source board of an anti-glare lighting fixture provided by an embodiment of the present application.
  • Fig. 5 is a fourth structural schematic diagram of an anti-glare lighting fixture provided by an embodiment of the present application.
  • Fig. 6a is the fifth structural schematic diagram of an anti-glare lighting fixture provided by the embodiment of the present application.
  • Fig. 6b is the sixth structural schematic diagram of an anti-glare lighting fixture provided by the embodiment of the present application.
  • Fig. 7a is one of the schematic diagrams of application scenarios of an anti-glare lighting fixture provided by an embodiment of the present application.
  • Fig. 7b is the second schematic diagram of the application scene of an anti-glare lighting fixture provided by the embodiment of the present application.
  • Fig. 8 is a seventh structural schematic diagram of an anti-glare lighting fixture provided by an embodiment of the present application.
  • Fig. 9a is the eighth structural schematic diagram of an anti-glare lighting fixture provided by the embodiment of the present application.
  • Fig. 9b is a ninth structural schematic diagram of an anti-glare lighting fixture provided by an embodiment of the present application.
  • an anti-glare lighting fixture as shown in Figure 2a, including:
  • the light-emitting protective cover 13 is used to fix the relative position between the optical reflector 12 and the plurality of light source panels 11, and the light-emitting protective cover 13 is provided with a light-emitting port A;
  • the optical reflector 12 is an optical reflector with a curved surface, which is used to reflect at least part of the incident light to the light outlet A;
  • Each light source board in the plurality of light source boards 11 faces the reflective surface of the optical reflector 12, and the plurality of light source boards 11 include at least two light source boards arranged non-parallel to pass the optical reflection
  • the device 12 reflects at least two asymmetric lights with different light distribution curves to the light outlet A.
  • the above-mentioned light source board may specifically include a substrate and one or more light sources arranged on the substrate.
  • the multiple light sources may be uniformly arranged in an array on the light source board.
  • the distribution of multiple light sources can also be determined according to the shape of the light source board.
  • the shape of the light source board is strip-shaped, multiple light sources can be evenly arranged on the light source board along the extension direction of the strip-shaped light source board.
  • FIG. 2b shows a schematic structural diagram of a light source board including a row of point light sources. In practical applications, multiple rows of point light sources may also be arranged on the light source board.
  • the above-mentioned optical reflector may specifically be a reflector, and the reflector is an optical element that works by using the law of reflection. According to the shape, the reflector can be divided into three types: planar reflector, spherical reflector and aspheric reflector. According to the degree of reflection, it can be divided into total reflective mirror and half reflective mirror.
  • the optical reflector described in the embodiment of the present application is an optical reflector with a curved surface. Referring to FIG. 2 a , the optical reflector may be disposed on the inner cavity of the light-emitting protective cover.
  • the optical reflector may include silver plating, or other materials with reflective properties.
  • the optical reflector in this embodiment may be a concave mirror, which is used to reflect the light emitted by the light source board to the light outlet for emission.
  • the light emitted by the light source board is reflected by the reflector to realize the indirect light output mode, reduce visual glare, and improve lighting comfort.
  • each of the plurality of light source boards faces the reflective surface of the optical reflector, so that the light emitted from the light source board is reflected by the reflective surface and then emitted through the light outlet.
  • the plurality of light source plates includes at least two light source plates arranged non-parallel.
  • the plurality of light source boards include a horizontally arranged light source board and a rightwardly inclined light source board, so as to reflect at least two different light distribution curves to the light outlet through the optical reflector asymmetric light.
  • the light emitted by the plurality of light source boards is reflected at least once and then emitted from the light outlet.
  • the plurality of light source boards include at least two light source boards arranged non-parallel, and the at least two light source boards arranged non-parallel can emit asymmetric light with different light distribution curves from the light outlet.
  • the asymmetrical light emitted by the illuminating lamp provided by this solution can realize the illumination of a certain area while avoiding direct illumination of another area.
  • the illuminating lamp provided by the embodiment of the present application can illuminate the desktop in front of the display screen, and at the same time, avoid glare caused by light directly shining on the screen.
  • the light emitted from the light outlet by the at least two light source panels arranged in parallel has different light distribution curves, so that multiple areas can be illuminated.
  • the anti-glare lighting fixture provided by the embodiments of the present invention can be applied to application scenarios including display screens, for example, on a desktop on which a computer monitor is placed.
  • the anti-glare lighting fixture provided by the embodiment of the present application can be used to illuminate the desktop between the display screen and the user, so as to prevent the light from directly illuminating the entire screen. In addition, it can also fill in light around the screen to avoid eye fatigue caused by large brightness differences.
  • the anti-glare lighting fixture provided in the embodiment of the present application may also be used to illuminate multiple sub-areas within an area.
  • At least one light-emitting diode (Light-Emitting Diode, LED) is arranged on the light source board.
  • a light-emitting diode is a light-emitting device that emits energy through the recombination of electrons and holes. Light-emitting diodes can efficiently convert electrical energy into light energy. LEDs have low energy consumption, high lighting brightness, and energy-saving features.
  • the colors of light emitted by different light source boards may be different.
  • the colors of the multiple LEDs may also be different. Which color LED light source board to choose can be determined according to the brightness and color temperature of the actual application scene, so that the light emitted by the lighting lamp can adapt to the actual application scene.
  • the light emitting diode is a Lambertian light emitting body with a light distribution of 120 degrees.
  • the above-mentioned Lambertian illuminant can also be referred to as a Lambertian body for short.
  • the Lambertian body refers to the phenomenon that when the incident energy is uniformly reflected in all directions, that is, the incident energy is centered on the incident point and reflects energy isotropically around the entire hemispherical space. , called diffuse reflection, also known as isotropic reflection, a complete diffuse body is called a Lambertian body.
  • the LED arranged on the light source board is a Lambertian illuminant with a luminous angle of 120 degrees, which can realize light distribution within a certain angle, so that the emitted light distribution curve can be controlled.
  • the polarization degree of the asymmetric light is smaller than the polarization degree of the asymmetric light emitted by the far-field light source board through the light outlet, and the light distribution angle of the asymmetric light emitted by the near-field light source board through the light outlet is larger than that of the far-field The light distribution angle of the asymmetric light emitted from the light source board through the light outlet.
  • the light distribution curve of the light emitted by the far-field light source board after being reflected by the optical reflector and emitted through the light outlet A is shown in FIG. 4 b , where the polarization degree is 34 degrees and the light distribution angle is 30 degrees.
  • the light distribution curve of the light emitted by the near-field light source board after being reflected by the optical reflector and emitted through the light outlet A is shown in Figure 4c.
  • the polarization angle is 8 degrees, and the light distribution angle is 40 degrees.
  • the light emitted by the above-mentioned near-field light source board can illuminate the area between the user and the screen close to the screen, while the light emitted by the far-field light source board can illuminate the area between the user and the screen.
  • the area close to the user is illuminated to achieve multi-area lighting.
  • the light distribution curves of the light emitted by the above-mentioned near-field light source board and far-field light source board after being reflected by the optical reflector and emitted through the light outlet A are shown in FIG. 4d.
  • Fig. 2a only shows a lighting structure including two light source boards.
  • more light source boards can be included in the lighting lamp, and multiple light source boards can also be inclined at different angles. set up.
  • the plurality of light source panels arranged in the illuminating lamp may include two light source panels as shown in FIG. 5 , the left light source panel in FIG. 5 is arranged horizontally, and the right light source panel is arranged obliquely to the left.
  • the illuminating lamp with this structure can also reflect at least two asymmetric lights with different light distribution curves to the light outlet A through the optical reflector, so as to illuminate different areas.
  • part of the light emitted from the left side of Figure 5 after being reflected by the optical reflector cannot be emitted from the lighting lamp due to the shielding of the light source board on the right side of Figure 5, resulting in energy waste.
  • the included angle between the plane where the near-field light source board is located and the plane where the far-field light source board is located is greater than or equal to 45° and less than or equal to 90°.
  • the near-field light source board and the far-field light source board are arranged at a certain angle, so that the light distribution curve of the light emitted by the near-field light source board is obviously different from the light distribution curve of the light emitted by the far-field light source board, so that two different areas Implements lighting that reduces the extent to which two areas being lit overlap.
  • a light source placement area B is provided in the plane M where the light exit Areas A are arranged side by side, and the plurality of light source panels are arranged in the light source arrangement area B;
  • the projection of the optical reflector 12 on the plane M where the light outlet is located covers the light source installation area B and the area A where the light outlet is located.
  • a plurality of light source boards are arranged in the light source installation area, and the light emitted from the light source boards is reflected by the optical reflector and then emitted from the light outlet.
  • the above-mentioned light source installation area and the area where the light outlet is located can be arranged adjacent to each other without intervals. Since the light source installation area and the area where the light outlet is located are arranged side by side, the light emitted to the light outlet after being reflected by the optical emitter is often not blocked by the light source board, effectively Avoid wasting energy.
  • the multiple light source boards arranged in the light source installation area can be arranged as shown in Fig. 3 and Fig. 5, and can also be arranged perpendicularly to each other as shown in Fig. 6c.
  • a plurality of light source boards being arranged in the light source installation area specifically means that projections of the plurality of light source boards on the plane M where the light outlet is located are located in the light source installation area.
  • the projections of the above-mentioned near-field light source board and the above-mentioned far-field light source board on the plane M where the light outlet is located are all located in the light source installation area.
  • the lighting lamp further includes:
  • the extension direction of the plurality of strip-shaped light source panels of the illuminating lamp fixed on the display screen is parallel to the plane where the display screen is located.
  • the above bracket may specifically include a mechanical arm, one end of the mechanical arm is connected to the light emitting protective cover, and the other end of the mechanical arm is used to be fixed on the display screen.
  • the end of the mechanical arm connected to the light-emitting protective cover can be provided with movable parts. During use, the user can adjust the light-emitting protective cover within a certain angle according to actual needs, and then adjust the angle of light emission.
  • the above bracket may also include a clip, one end of which is connected to the light emitting protective cover, and is used to fix the light emitting protective cover on the display screen by clamping.
  • the above-mentioned bracket can also be fixed on the above-mentioned display screen by inserting components, pasting or other methods.
  • the extension direction of the plurality of strip-shaped light source panels of the illuminating lamp fixed on the display screen is parallel to the plane where the display screen is located, wherein the extension direction is shown by dashed arrows in FIG. 7b.
  • the extension direction of the strip-shaped light source plate of the illuminating lamp fixed on the display screen is parallel to the display screen, which can evenly illuminate the area between the display screen and the user, optimize the lighting effect, and avoid glare caused by direct illumination on the display screen.
  • the light emitted by the LED light source board is reflected by the reflector and emitted, and the obtained light distribution is an asymmetric polarized light distribution, which can minimize the light on the screen .
  • the light source of the lighting provided by this solution is composed of multiple LED light source boards, and the light distribution form of the LED is a Lambertian illuminant with a light distribution of 120 degrees. Structural light blocking problems.
  • the lighting fixture provided by the embodiment of the present application shown in FIG. 7a can avoid directly illuminating the screen, can effectively optimize the lighting effect, avoid glare problems, and optimize user experience.
  • the plurality of light source panels include a plurality of strip-shaped light source panels, and the extension directions of the plurality of strip-shaped light source panels are the same.
  • the multiple light source panels in the anti-glare lighting fixture are strip-shaped light source panels
  • FIG. 8 shows three strip-shaped light source panels arranged non-parallel. The extending directions of the three strip-shaped light source panels are shown by dotted arrows in FIG. 8 .
  • the optical reflector, the light-emitting protective cover and the light-emitting port in the illuminating lamp are also strip-shaped.
  • the strip-shaped light source board can emit strip-shaped light, and after being reflected by the strip-shaped optical reflector, the strip-shaped light is emitted through the strip-shaped light outlet.
  • the illuminating lamp is fixed on the display, the emitted light can illuminate the approximately rectangular area between the display and the user, thereby optimizing the lighting effect.
  • the lighting lamp further includes:
  • the control module 92 connected between the power source 91 and the plurality of light source boards 11 can respectively control whether the connected light source boards 11 emit light.
  • the solution provided by the embodiment of the present application adjusts the light distribution curve of the lighting light of the lighting lamp by controlling whether the light source board emits light, and then focuses on lighting different areas, which can realize the angle adjustment function of the screen light and improve the multifunctional use characteristics of the lamp.
  • the invention patent improves the application performance of the lighting lamp, not only can realize the angle adjustment function of the lamp, but also makes the light soft through indirect light emission, effectively reducing visual glare, and bringing better lighting experience to users.
  • the polarization degree of the asymmetric light emitted by the field light source plate 921 through the light outlet is smaller than the polarization degree of the asymmetric light emitted by the far-field light source plate 922 through the light outlet, and the asymmetric light emitted by the near-field light source plate 921 through the light outlet
  • the light distribution angle of the light is greater than the light distribution angle of the asymmetric light emitted by the far-field light source board 922 through the light outlet, and the control module 92 is used to control the near-field light source board 921 and/or the far-field light source board Whether the 922 emits light.
  • the control module disposed between the power source and the light source board can control the area highlighted by the lighting lamp by controlling whether the above-mentioned light source board emits light.
  • the light distribution curve of the light emitted by the lighting lamp is shown in Figure 4b, focusing on the far-field lighting.
  • the light distribution curve of the light emitted by the lighting lamp is shown in Figure 4c, focusing on the near-field lighting.
  • control module is further configured to control the luminance and/or color temperature of the light source board.
  • the above-mentioned control module can also control the luminance of the light source board by controlling voltage and/or current.
  • the illuminating light focuses on illuminating the near-field area, and at this time the user instructs the illuminating light to illuminate the far-field area.
  • the above-mentioned control module can reduce the brightness of the near-field light source board by controlling the current and/or voltage, and at the same time increase the brightness of the far-field light source board, so as to realize the switch from the near-field lighting to the far-field lighting.
  • the control module can smoothly transition the lighting light to the lighting area required by the user by linearly adjusting the current and/or voltage of the light source board, thereby optimizing the user experience.
  • control module may include a communication module, such as a Bluetooth module, a WiFi module, an infrared transceiver module, etc., for receiving user instructions, and may also send feedback signals based on the received instructions.
  • a communication module such as a Bluetooth module, a WiFi module, an infrared transceiver module, etc.
  • the power supply in this embodiment may specifically be a battery, a transformer module connected to the mains, or a module connected to other electronic devices through a USB interface, for supplying power to the control module and the light source board.

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  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

一种防眩光照明灯具，用以缓解显示设备附近的照明灯造成的显示设备眩光的问题。包括：出光保护罩（13），用于固定光学反射器（12）与多个光源板（11）之间的相对位置，出光保护罩（13）设置有出光口（A）；光学反射器（12），为带曲面的光学反射器（12），用于将至少部分入射光反射至出光口（A）；光源板（11），多个光源板（11）中的每个朝向光学反射器（12）的反射面，且多个光源板（11）中包括非平行设置的至少两个光源板（11），以通过光学反射器（12）向出光口（A）反射出至少两个不同配光曲线的非对称光。光源板（11）发出的光线经反射器（12）反射后射出照明灯的射出光线形成非对称光，有效缓解眩光。不同配光曲线的多个光源板（11）能对多个不同区域实现照明，使照明光线柔和，优化照明效果。

Description

一种防眩光照明灯具 技术领域
本发明涉及照明领域，尤其涉及一种防眩光照明灯具。
背景技术
在照明领域中，不同的照明灯具的应用场所往往不同。由于不同材质的被照明的区域，照明效果也往往不同。比如，桌面台灯在对放置在桌面的书本进行照明时，能够达到较好的照明效果。但是，由于手机、平板电脑等显示设备本身能够自发光，这使得台灯照射在显示屏上的光线发生反射，俗称眩光。如图1所示，这种眩光不仅使得照明效果不佳，长期使用还会影响人的视力健康。
如何缓解显示设备附近的照明灯造成的显示设备眩光问题，是本申请所要解决的技术问题。
发明内容
本申请实施例的目的是提供一种防眩光照明灯具，用以缓解显示设备附近的照明灯造成的显示设备眩光的问题。
本实施例提供了一种防眩光照明灯具，包括：
多个光源板、光学反射器和出光保护罩，其中，
所述出光保护罩用于固定所述光学反射器与多个所述光源板之间的相对位置，所述出光保护罩设置有出光口；
所述光学反射器为带曲面的光学反射器，用于将至少部分入射光反射至所述出光口；
所述多个光源板中的每个光源板朝向所述光学反射器的反射面，且所述多个光源板中包括非平行设置的至少两个光源板，以通过所述光学反射器向所述出光口反射出至少两个不同配光曲线的非对称光。
可选的，所述光源板上设置有至少一个发光二极管。
可选的，所述发光二极管为120度配光的朗伯发光体。
可选的，所述出光口所在平面内设置有光源安置区，所述光源安置区与所述出光口所在区域并列设置，所述多个光源板设置在所述光源安置区内；
其中，所述光学反射器在所述出光口所在平面的投影覆盖所述光源安置区和所述出光口所在区域。
可选的，所述多个光源板包括至少一个近场光源板和至少一个远场光源板，所述近场光源板经出光口射出的非对称光的偏光度小于所述远场光源板经出光口射出的非对称光的偏光度，且所述近场光源板经出光口射出的非对称光的配光角度大于所述远场光源板经出光口射出的非对称光的配光角度。
可选的，所述近场光源板所在平面与所述远场光源板所在平面的夹角大于等于45°且小于等于90°。
可选的，所述照明灯具还包括：
与所述出光保护罩连接的支架，所述支架用于将所述照明灯固定在显示屏上；
其中，固定在显示屏上的所述照明灯的多个条形光源板的延伸方向与所述显示屏所在平面平行。
可选的，所述照明灯具还包括：
电源；
连接在所述电源与所述多个光源板之间的控制模块，所述控制模块可分别控制相连的光源板是否发光。
可选的，所述控制模块可分别控制相连的光源板的发光亮度和/或色温。
在本申请实施例中提供的防眩光照明灯具包括：多个光源板、光学反射器和出光保护罩，其中，所述出光保护罩用于固定所述光学反射器与多个所述光源板之间的相对位置，所述出光保护罩设置有出光口；所述光学反射器为带曲面的光学反射器，用于将至少部分入射光反射至所述出光口；所述多 个光源板中的每个光源板朝向所述光学反射器的反射面，且所述多个光源板中包括非平行设置的至少两个光源板，以通过所述光学反射器向所述出光口反射出至少两个不同配光曲线的非对称光。本方案中光源板发出的光线是经反射器反射后射出照明灯的，使射出光线形成非对称光，有效缓解眩光。不同配光曲线的多个光源板能对多个不同区域实现照明，使照明光线柔和，优化照明效果。
附图说明
此处所说明的附图用来提供对本发明的进一步理解，构成本发明的一部分，本发明的示意性实施例及其说明用于解释本发明，并不构成对本发明的不当限定。在附图中：
图1是以台灯照明的包含显示器的场景示意图。
图2a是本申请实施例提供的一种防眩光照明灯具的结构示意图之一。
图2b是本申请实施例提供的一种防眩光照明灯具中的光源板的结构示意图。
图3是本申请实施例提供的一种防眩光照明灯具的结构示意图之二。
图4a是本申请实施例提供的一种防眩光照明灯具的结构示意图之三。
图4b是本申请实施例提供的一种防眩光照明灯具的远场光源板的配光曲线示意图。
图4c是本申请实施例提供的一种防眩光照明灯具的近场光源板的配光曲线示意图。
图4d是本申请实施例提供的一种防眩光照明灯具的远场光源板和近场光源板的配光曲线示意图。
图5是本申请实施例提供的一种防眩光照明灯具的结构示意图之四。
图6a是本申请实施例提供的一种防眩光照明灯具的结构示意图之五。
图6b是本申请实施例提供的一种防眩光照明灯具的结构示意图之六。
图7a是本申请实施例提供的一种防眩光照明灯具的应用场景示意图之一。
图7b是本申请实施例提供的一种防眩光照明灯具的应用场景示意图之二。
图8是本申请实施例提供的一种防眩光照明灯具的结构示意图之七。
图9a是本申请实施例提供的一种防眩光照明灯具的结构示意图之八。
图9b是本申请实施例提供的一种防眩光照明灯具的结构示意图之九。
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例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作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。本申请中附图编号仅用于区分方案中的各个步骤，不用于限定各个步骤的执行顺序，具体执行顺序以说明书中描述为准。
为了解决现有技术中存在的问题，本申请实施例提供一种防眩光照明灯具，如图2a所示，包括：
多个光源板11、光学反射器12和出光保护罩13，其中，
所述出光保护罩13用于固定所述光学反射器12与多个所述光源板11之间的相对位置，所述出光保护罩13设置有出光口A；
所述光学反射器12为带曲面的光学反射器，用于将至少部分入射光反射至所述出光口A；
所述多个光源板11中的每个光源板朝向所述光学反射器12的反射面，且所述多个光源板11中包括非平行设置的至少两个光源板，以通过所述光学反射器12向所述出光口A反射出至少两个不同配光曲线的非对称光。
上述光源板具体可以包括基板和设置在基板上的一个或多个光源，当光 源板上设置有多个光源时，多个光源可以以阵列形式均匀排布在光源板上。如图2b所示，多个光源的分布也可以根据光源板的形状确定，比如，当光源板的形状是条形时，多个光源可以沿条形光源板的延伸方向均匀排布在光源板上。另外，图2b示出了包含一排点光源的光源板结构示意图，在实际应用中，光源板上也可以设置多排点光源。
上述光学反射器具体可以是反射镜，反射镜是一种利用反射定律工作的光学元件。反射镜按形状可分为平面反射镜、球面反射镜和非球面反射镜三种。按反射程度，可分成全反反射镜和半透半反反射镜。本申请实施例中所述的光学反射器为带曲面的光学反射镜，参见图2a，光学反射器可以设置在出光保护罩的内腔上。该光学反射器可以包括银镀层，也可以采用其他具有反光特性的材质。本实施例中的光学反射器可以是凹面镜，用于将光源板发出的光线反射至出光口射出。光源板发出的光线经过反射器反射，实现间接出光方式，减少目视眩光，能提升照明舒适性。
其中，多个光源板中的每个光源板朝向光学反射器的反射面，使光源板射出的光线经反射面反射后，通过出光口射出。而且，多个光源板中包括非平行设置的至少两个光源板。在图2a示出的结构中，多个光源板中包括水平设置的光源板和向右倾斜设置的光源板，以通过所述光学反射器向所述出光口反射出至少两个不同配光曲线的非对称光。
上述多个光源板发出的光线经至少一次反射后从出光口射出。其中，多个光源板中包括非平行设置的至少两个光源板，而非平行设置的至少两个光源板能从出光口射出具有不同配光曲线的非对称光。本方案提供的照明灯射出的非对称光能实现对一定区域照明，同时避免对另一区域直接照明。举例而言，在包含显示屏的应用场景中，通过本申请实施例提供的照明灯能够对显示屏前的桌面实现照明，同时，避免光线直接照射到屏幕上造成眩光。而且，上说费平行设置的至少两个光源板从出光口射出的光线具有不同的配光曲线，能对多个区域实现照明。
本发明实施例提供的防眩光照明灯具，可以应用于包含显示屏的应用场景，比如，在放置有电脑显示器的桌面上。本申请实施例提供的防眩光照明灯具可以用于为显示屏与用户之间的桌面进行照明，避免光线直接照亮整个屏幕。除此之外，还能对屏幕周围进行补光，以免较大的亮度落差造成人眼疲劳。另外，本申请实施例提供的防眩光照明灯具也可以用于对区域内的多个子区域进行照明。
基于上述实施例提供的方案，可选的，所述光源板上设置有至少一个发光二极管(Light-Emitting Diode，LED)。发光二极管是一种发光器件，通过电子与空穴复合释放能量发光.发光二极管可高效地将电能转化为光能，LED的能耗较低，照明亮度较高，具有节能的特点。
当光源板的数量是多个时，不同光源板发出的光线颜色可以不同。当设置在光源板上的LED的数量是多个时，多个LED的颜色也可以不同。可以根据实际应用场景的亮度与色温来确定选用哪种颜色的LED光源板，以使照明灯射出的光线适应于实际应用场景。
基于上述实施例提供的方案，可选的，如图3所示，所述发光二极管为120度配光的朗伯发光体。
上述朗伯发光体也可以简称为朗伯体，朗伯体是指当入射能量在所有方向均匀反射，即入射能量以入射点为中心，在整个半球空间内向四周各向同性的反射能量的现象，称为漫反射，也称各向同性反射，一个完全的漫射体称为朗伯体。本申请实施例中设置在光源板上的LED是发光角度为120度的朗伯发光体，能实现一定角度内配光，使出射的配光曲线可控。
基于上述实施例提供的方案，可选的，如图4a所示，所述多个光源板包括至少一个近场光源板和至少一个远场光源板，所述近场光源板经出光口A射出的非对称光的偏光度小于所述远场光源板经出光口射出的非对称光的偏光度，且所述近场光源板经出光口射出的非对称光的配光角度大于所述远场光源板经出光口射出的非对称光的配光角度。
举例而言，远场光源板发出的光线经光学反射器反射后经出光口A出射的配光曲线如图4b所示，其偏光度为34度，配光角度为30度。近场光源板发出的光线经光学反射器反射后经出光口A出射的配光曲线如图4c所示，其偏光角度为8度，配光角度为40度。当本申请实施例提供的照明灯应用为屏幕灯时，上述近场光源板发出的光线能够对用户与屏幕之间靠近屏幕的区域进行照明，而远场光源板发出的光线能够对用户与屏幕之间靠近用户的区域进行照明，实现多区域照明。上述近场光源板和远场光源板发出的光线经光学反射器反射后经出光口A出射的配光曲线如图4d所示。
本申请实施例中，图2a仅示出了一种包含两个光源板的照明灯结构，实际上，照明灯中还可以包括更多数量的光源板，多个光源板也可以按不同倾斜角度设置。比如说，设置在照明灯内的多个光源板可以包括如图5示出的两个光源板，图5中左侧的光源板水平设置，右侧的光源板向左倾斜设置。这种结构的照明灯也能实现通过所述光学反射器向出光口A反射出至少两个不同配光曲线的非对称光，对不同区域实现照明。但是，图5左侧发出的光线经光学反射器反射后的部分光线会由于图5右侧光源板遮挡而无法射出照明灯，造成能源浪费。
基于上述实施例提供的方案，可选的，所述近场光源板所在平面与所述远场光源板所在平面的夹角大于等于45°且小于等于90°。
上述近场光源板与远场光源板呈一定角度设置，能使近场光源板发出的光线的配光曲线明显区别于远场光源板发出的光线的配光曲线，从而对两个不同的区域实现照明，减少所照明的两个区域的交叠范围。
为了解决上述问题，基于上述实施例提供的方案，可选的，如图6b所示，所述出光口所在平面M内设置有光源安置区B，所述光源安置区B与所述出光口所在区域A并列设置，所述多个光源板设置在所述光源安置区B内；
其中，所述光学反射器12在所述出光口所在平面M的投影覆盖所述光源安置区B和所述出光口所在区域A。
本实施例中，多个光源板设置在光源安置区内，由光源板射出的光线经光学反射器反射后从出光口射出。上述光源安置区与出光口所在区域可以无间隔相邻设置，由于光源安置区与出光口所在区域并列设置，所以经光学放射器反射后射向出光口的光线往往不会被光源板遮挡，有效避免能源浪费。
设置在光源安置区内的多个光源板可以如图3、图5设置，也可以如图6c所示相互垂直设置。其中，多个光源板设置在光源安置区内具体是指多个光源板在所述出光口所在平面M的投影位于所述光源安置区内。例如，上述近场光源板和上述远场光源板在出光口所在平面M的投影均位于所述光源安置区内。
基于上述实施例提供的方案，可选的，如图7a所示，所述的照明灯，还包括：
与所述出光保护罩连接的支架71，所述支架用于将所述照明灯固定在显示屏上；
其中，固定在显示屏上的所述照明灯的多个条形光源板的延伸方向与所述显示屏所在平面平行。
上述支架具体可以包括机械臂，机械臂的一端连接上述出光保护罩，机械臂的另一端用于固定在显示屏上。上述机械臂连接出光保护罩的一端可以设置有活动件，在使用过程中，用户可以根据实际需求在一定角度内调整出光保护罩，进而调整光线射出的角度。
上述支架也可以包括夹子，所述夹子一端与上述出光保护罩连接，用于通过夹持的方式将出光保护罩固定在显示屏上。另外，上述支架也可以通过插接部件、粘贴或其他方式固定在上述显示屏上。
如图7b所示，固定在显示屏上的所述照明灯的多个条形光源板的延伸方向与所述显示屏所在平面平行，其中，延伸方向在图7b中以虚线箭头示出。固定在显示屏上的照明灯的条形光源板的延伸方向与显示屏平行，能均匀照亮显示屏与用户之间的区域，优化照明效果，同时避免直接照射显示屏造成 眩光。
对比图1和图7a可见，通过本申请实施例提供的方案，LED光源板发出的光线经反射器反射后射出，得到的配光是非对称偏光配光，能让照在屏幕上的光线尽量少。其中，本方案提供的照明灯的光源是由多块LED光源板组合拼接成的，其中LED的配光形式是120度配光的朗伯发光体，同时，尽量避免各光源板之间存在的结构挡光问题。与图1相比，图7a所示的本申请实施例提供的照明灯具能避免直接对屏幕进行照明，能有效优化照明效果，避免眩光问题，优化用户体验。
基于上述实施例提供的方案，可选的，如图8所示，所述多个光源板包括多个条形光源板，所述多个条形光源板的延伸方向相同。
在本实施例中，防眩光照明灯具中的多个光源板为条形光源板，图8示出了非平行设置的3个条形光源板。3个条形光源板的延伸方向在图8中以虚线箭头示出。
另外，照明灯中的光学反射器、出光保护罩、出光口也为条形。在照明灯发光时，条形的光源板能发射出条带状光线，经条形光学反射器反射后，条带状光线经条形出光口射出。当照明灯固定在显示器上时，出射的光线能对显示器与用户之间的近似矩形区域实现照明，优化照明效果。
基于上述实施例提供的方案，可选的，如图9a所示，所述照明灯还包括：
电源91；
连接在所述电源91与所述多个光源板11之间的控制模块92，所述控制模块92可分别控制相连的光源板11是否发光。
本申请实施例提供的方案，通过控制光源板是否发光来调节照明灯照明光线的配光曲线，进而重点照明不同的区域，能实现屏幕灯的调角功能，提升灯具的多功能使用特性。
本发明专利提升了照明灯的应用性能，不仅能实现灯具的调角功能，还通过间接出光方式使光线柔和，有效减少目视眩光，为用户带来更好的照明 体验。
基于上述实施例提供的照明灯，可选的，如图9b所示，与所述控制模块92电连接的光源板包括至少一个近场光源板921和至少一个远场光源板922，所述近场光源板921经出光口射出的非对称光的偏光度小于所述远场光源板922经出光口射出的非对称光的偏光度，且所述近场光源板921经出光口射出的非对称光的配光角度大于所述远场光源板922经出光口射出的非对称光的配光角度，所述控制模块92用于控制所述近场光源板921和/或所述远场光源板922是否发光。
在本实施例中，假设远场光源板经出光口射出的光线的配光曲线如图4b所示，近场光源板经出光口射出的光线的配光曲线如图4c所示，近场光源板和远场光源板经出光口射出的光线的配光曲线如图4c所示。那么，本申请实施例中设置在电源与光源板之间的控制模块通过控制上述光源板是否发光，能够控制照明灯重点照明的区域。比如，控制远场光源板发光且关闭近场光源板，照明灯发出光线的配光曲线如图4b所示，重点对远场进行照明。控制近场光源板发光且关闭远场光源板，照明灯发出光线的配光曲线如图4c所示，重点对近场进行照明。或者，也可以控制近场光源板和远场光源板都发光，以对近场和远场全覆盖照明。
基于上述实施例提供的灯具，可选的，所述控制模块还用于控制所述光源板的发光亮度和/或色温。
在本实施例中，上述控制模块还可以通过控制电压和/或电流的方式来控制光源板的发光亮度。在实际应用中，假设照明灯重点照明近场区域，此时用户指示该照明灯对远场区域进行照明。那么，上述控制模块可以通过控制电流和/或电压的方式降低近场光源板的亮度，同时提高远场光源板的亮度，从而实现从近场照明向远场照明的切换。其中，控制模块通过线性调整光源板的电流和/或电压，能使照明光线缓和地过渡到用户所需的照明区域，优化用户使用体验。
在实际应用中，上述控制模块内可以包括通信模块，例如蓝牙模块、WiFi模块、红外线收发模块等，用于接收用户的指令，也可以基于接收到的指令发送反馈信号。
本实施例中的电源具体可以是电池，也可以是与市电连接的变压模块，还可以是通过USB接口与其他电子设备连接的模块等，用于向控制模块和光源板供电。
需要说明的是，在本文中，术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、物品或者装置不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法、物品或者装置所固有的要素。在没有更多限制的情况下，由语句“包括一个……”限定的要素，并不排除在包括该要素的过程、方法、物品或者装置中还存在另外的相同要素。
通过以上的实施方式的描述，本领域的技术人员可以清楚地了解到上述实施例方法可借助软件加必需的通用硬件平台的方式来实现，当然也可以通过硬件，但很多情况下前者是更佳的实施方式。基于这样的理解，本发明的技术方案本质上或者说对现有技术做出贡献的部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质(如ROM/RAM、磁碟、光盘)中，包括若干指令用以使得一台终端(可以是手机，计算机，服务器，空调器，或者网络设备等)执行本发明各个实施例所述的方法。
上面结合附图对本发明的实施例进行了描述，但是本发明并不局限于上述的具体实施方式，上述的具体实施方式仅仅是示意性的，而不是限制性的，本领域的普通技术人员在本发明的启示下，在不脱离本发明宗旨和权利要求所保护的范围情况下，还可做出很多形式，均属于本发明的保护之内。

Claims (10)

  1. 一种防眩光照明灯具，其中，包括：
    多个光源板、光学反射器和出光保护罩，其中，
    所述出光保护罩用于固定所述光学反射器与多个所述光源板之间的相对位置，所述出光保护罩设置有出光口；
    所述光学反射器为带曲面的光学反射器，用于将至少部分入射光反射至所述出光口；
    所述多个光源板中的每个光源板朝向所述光学反射器的反射面，且所述多个光源板中包括非平行设置的至少两个光源板，以通过所述光学反射器向所述出光口反射出至少两个不同配光曲线的非对称光。
  2. 如权利要求1所述的照明灯具，其中，所述光源板上设置有至少一个发光二极管。
  3. 如权利要求2所述的照明灯具，其中，所述发光二极管为120度配光的朗伯发光体。
  4. 如权利要求1所述的照明灯具，其中，所述出光口所在平面内设置有光源安置区，所述光源安置区与所述出光口所在区域并列设置，所述多个光源板设置在所述光源安置区内；
    其中，所述光学反射器在所述出光口所在平面的投影覆盖所述光源安置区和所述出光口所在区域。
  5. 如权利要求4所述的照明灯具，其中，所述多个光源板包括至少一个近场光源板和至少一个远场光源板，所述近场光源板经出光口射出的非对称 光的偏光度小于所述远场光源板经出光口射出的非对称光的偏光度，且所述近场光源板经出光口射出的非对称光的配光角度大于所述远场光源板经出光口射出的非对称光的配光角度。
  6. 如权利要求5所述的照明灯具，其中，所述近场光源板所在平面与所述远场光源板所在平面的夹角大于等于45°且小于等于90°。
  7. 如权利要求1所述的照明灯具，其中，所述多个光源板包括多个条形光源板，所述多个条形光源板的延伸方向相同。
  8. 如权利要求7所述的照明灯具，其中，还包括：
    与所述出光保护罩连接的支架，所述支架用于将所述照明灯固定在显示屏上；
    其中，固定在显示屏上的所述照明灯的多个条形光源板的延伸方向与所述显示屏所在平面平行。
  9. 如权利要求1～8任一项所述的照明灯具，其中，还包括：
    电源；
    连接在所述电源与所述多个光源板之间的控制模块，所述控制模块可分别控制相连的光源板是否发光。
  10. 如权利要求9所述的照明灯具，其中，所述控制模块用于控制相连的光源板的发光亮度和/或色温。
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CN207555293U (zh) * 2017-12-19 2018-06-29 厦门捷能通光电科技有限公司 一种照明组件及台灯
CN110107839A (zh) * 2019-06-14 2019-08-09 深圳市中电照明股份有限公司 一种黑板灯
CN113375087A (zh) * 2021-06-30 2021-09-10 欧普照明股份有限公司 一种防眩光照明灯具
CN214840383U (zh) * 2021-06-30 2021-11-23 欧普照明股份有限公司 一种防眩光照明灯具

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EP3073179A1 (de) * 2015-03-23 2016-09-28 Siteco Beleuchtungstechnik GmbH Led-modul mit schaufelförmigem reflektor sowie leuchte mit entsprechendem led-modul
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CN113375087A (zh) * 2021-06-30 2021-09-10 欧普照明股份有限公司 一种防眩光照明灯具
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