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WO2022007095A1 - 一种瑞利散射阳光灯 - Google Patents

一种瑞利散射阳光灯 Download PDF

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Publication number
WO2022007095A1
WO2022007095A1 PCT/CN2020/107790 CN2020107790W WO2022007095A1 WO 2022007095 A1 WO2022007095 A1 WO 2022007095A1 CN 2020107790 W CN2020107790 W CN 2020107790W WO 2022007095 A1 WO2022007095 A1 WO 2022007095A1
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Prior art keywords
collimating lens
light
lens array
array
light source
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PCT/CN2020/107790
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English (en)
French (fr)
Inventor
罗平平
罗敏敏
Original Assignee
千奥星科南京生物科技有限公司
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Priority claimed from CN202010652043.3A external-priority patent/CN111649271B/zh
Priority claimed from CN202021325040.0U external-priority patent/CN212565438U/zh
Application filed by 千奥星科南京生物科技有限公司 filed Critical 千奥星科南京生物科技有限公司
Publication of WO2022007095A1 publication Critical patent/WO2022007095A1/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
    • F21V5/00—Refractors for light sources
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V5/00—Refractors for light sources
    • F21V5/04—Refractors for light sources of lens shape
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V5/00—Refractors for light sources
    • F21V5/08—Refractors for light sources producing an asymmetric light distribution
    • 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 field of optoelectronic technology, in particular to a Rayleigh scattering sunlight lamp.
  • the purpose of the present invention is to provide a Rayleigh scattering sunlight lamp, which can effectively solve the problem of the Rayleigh scattering sunlight lamp that can provide diffused blue sky light under the condition of lack of natural light.
  • a Rayleigh scattering sunlight lamp comprising a sunlight lamp housing, the sunlight lamp housing is composed of an LED light source array, a collimating lens array, a honeycomb core material, a diffusing plate and a blue light diffusing plate in sequence from top to bottom.
  • the collimating lens array includes a first collimating lens array, a second collimating lens array and a mirror body array installed between the first collimating lens array and the second collimating lens array, and the LED light source array is composed of several LED lights
  • Each LED lamp bead is placed on the focal point of each first collimating lens array, the second collimating lens array is arranged in a one-to-one correspondence with the honeycomb core material, and the bottom surface of the honeycomb core material is attached with a diffuser plate , used to convert the uneven light source into a surface light source with uniform distribution and blurred dots; there is a certain diffusing space between the blue light scattering plate and the diffusing plate, and the blue light scattering plate is fixedly installed at the bottom of the sunlight lamp shell, with It is used to diffuse the white light or cool white light transmitted by the diffuser into blue light.
  • the first collimating lens array is composed of a plurality of first collimating lenses, the side of each first collimating lens close to the LED light source is a light incident surface, and the side away from the LED light source is a light emitting surface, wherein the incident light surface is used.
  • the surface is a concave surface, and the light-emitting surface is a spherical convex surface;
  • the second collimating lens array is composed of a plurality of second collimating lenses, and the side of each second collimating lens close to the LED light source is the light incident surface, and the side away from the LED light source is the light incident surface. It is a light-emitting surface, wherein the light-incident surface is a plane surface, and the light-emitting surface is a spherical convex surface.
  • first collimating lens and the second collimating lens are transparent solid materials, including acrylic and glass.
  • the mirror body array is a plurality of regular hexagonal prism bodies made of black solid material, and arranged in a honeycomb-like seamless splicing arrangement.
  • the material of the honeycomb core material is one of aluminum alloy, glass fiber fabric impregnated with resin, aromatic fiber paper, kraft paper, graphite fiber or Kevlar fiber.
  • the diffuser plate is made of PC, PMMA, or transparent glass attached with a diffusion film, wherein the transparent glass connected with the honeycomb core material is attached with a diffusion film on one side, or both sides of the transparent glass are attached with a diffusion film. Diffusion film.
  • the blue light scattering plate is composed of a transparent base material and transparent titanium dioxide nanoparticles having different refractive indices relative to the transparent base material and having an average size significantly smaller than the wavelength of visible light, and the titanium dioxide nanoparticles can be embedded in the transparent base material, Or make titanium dioxide nanoparticles into nano-films and stick them on transparent substrates.
  • the color temperature of each of the LED lamp beads is required to be above 5000K, and the dominant wavelength is 400nm-500nm.
  • the beneficial effects of the present invention include: introducing the diffuse blue sky and the virtual sun into the indoor space, which can realize the lighting system, medical system, air purification system, and can be applied to indoor lighting, such as home lighting, underground shopping malls It can also be used for auxiliary treatment of depression, such as hospitals, rehabilitation centers, medical research institutions and other places that need lighting.
  • FIG. 1 is a schematic structural diagram of a Rayleigh scattering sunlight lamp according to an embodiment of the present invention
  • FIG. 2 is a schematic diagram of a Rayleigh scattering sunlight lamp according to an embodiment of the present invention.
  • FIG. 3 is a partial arrangement diagram of LED lamp beads according to an embodiment of the present invention.
  • FIG. 4 is a schematic diagram of a partial structure of a collimating lens array according to an embodiment of the present invention.
  • FIG. 5 is an arrangement diagram of a first collimating lens array according to an embodiment of the present invention.
  • FIG. 6 is an arrangement diagram of a second collimating lens array according to an embodiment of the present invention.
  • FIG. 7 is a schematic structural diagram of a first collimating lens according to an embodiment of the present invention.
  • FIG. 8 is a schematic structural diagram of a second collimating lens according to an embodiment of the present invention.
  • FIG. 9 is a schematic structural diagram of a honeycomb core material according to an embodiment of the present invention.
  • FIG. 10 is a schematic structural diagram of a blue light scattering plate according to an embodiment of the present invention.
  • FIG. 11 is another schematic structural diagram of a blue light scattering plate according to an embodiment of the present invention.
  • LED light source array 101, LED lamp beads, 2. Collimating lens array, 201, First collimating lens array, 2011, First collimating lens, 202, Mirror body array, 203, Second collimating lens Straight lens array, 2031, Second collimating lens, 3, Honeycomb core material, 4, Diffuser plate, 5, Blue light diffusing plate, 501, Transparent substrate, 502, Titanium dioxide nanoparticles, 503, Titanium dioxide nanofilm, 6, Sun .
  • FIG. 1 shows a Rayleigh scattering sunlight lamp according to an embodiment of the present invention.
  • the sunlight lamp is composed of an LED light source array 1 , a collimating lens array 2 , a honeycomb core material 3 , a diffuser plate 4 and blue light scattering in order from top to bottom. Board 5 composition.
  • the collimating lens array 2 includes a first collimating lens array 201 , a second collimating lens array 203 and a mirror body array 202 installed between the first collimating lens array 201 and the second collimating lens array 203 .
  • the LED light source array 1 is composed of several LED lamp beads 101 , each LED lamp bead 101 is placed on the focal point of each first collimating lens array 201 , and the second collimating lens array 203 is in a one-to-one correspondence with the honeycomb core material 3 .
  • the bottom surface of the honeycomb core material 3 is attached with a diffuser plate 4, which is used to convert the uneven light source into a surface light source with uniform distribution and blurred dots; there is a certain diffusion space between the blue light diffuser plate 5 and the diffuser plate 4, and
  • the blue light diffusing plate 5 is fixedly installed at the bottom of the sunlight lamp housing, and is used for diffusing the white light or cool white light transmitted by the diffusing plate into blue light.
  • each LED lamp bead 101 is placed at the focal point of the collimating lens array 2 and arranged in a plum-shaped array.
  • the color temperature of the light source of the LED lamp beads 101 generally requires 6000K to 8000K, or 5000K to 10000K, or more than 10000K.
  • the main wavelength of the light source of the LED lamp bead 101 is 430-470 nm, or 400-500 nm.
  • the first collimating lens array 201 is composed of a plurality of first collimating lenses 2011 , the side of each first collimating lens 2011 close to the LED light source is the light incident surface, and the side far from the LED light source is the light emitting surface The light-incident surface is concave, and the light-emitting surface is spherical convex.
  • the second collimating lens array 203 is composed of a plurality of second collimating lenses 2031. The side of each second collimating lens 2031 close to the LED light source is the light incident surface, and the side away from the LED light source is the light emitting surface.
  • the smooth surface is a plane, and the light-emitting surface is a spherical convex surface.
  • the first collimating lens 2011 and the second collimating lens 2031 are any transparent solid materials, including but not limited to acrylic, glass, etc.
  • the light transmittance of the lenses is generally 90-93%, or in a larger range, such as Over 93% or under 80%.
  • the mirror body array 202 is a plurality of black regular hexagonal prisms, and is arranged in a honeycomb-like seamless splicing arrangement, and is arranged in a one-to-one correspondence with the first collimating lens array 201 and the second collimating lens array 203.
  • the honeycomb core material 3 is made of aluminum alloy, glass fiber fabric impregnated with resin, aromatic fiber paper, kraft paper, graphite fiber or Kevlar fiber. Light guide and heat dissipation.
  • the diffuser plate 4 is made of PC, PMMA, or transparent glass or transparent tempered glass with a diffuser film attached, wherein the diffuser film is attached to one side of the transparent glass connected to the honeycomb core material, or both sides of the transparent glass are attached. Diffusion film.
  • the main function of the diffuser plate 4 is to convert the uneven light source into a surface light source with uniform distribution and blurred dots, and at the same time play the role of shielding the honeycomb core material or other optical defects; the second is to improve the viewing angle, increase the softness of the light source, and the third is to support Backlight architecture to avoid damage to the optical material above.
  • the light transmittance of the diffuser plate 4 is generally required to be 85% to 90%, or 80% to 92%, or 75% to 95%.
  • the haze of the diffuser plate 4 is generally required to be 65% to 75%, or 60% to 80%, or 55% to 85%.
  • the blue light scattering plate 5 is composed of a transparent substrate 501 and transparent titanium dioxide nanoparticles with different refractive indices relative to the transparent substrate 501 and an average size significantly smaller than the wavelength of visible light.
  • the titanium dioxide nanoparticles 502 are evenly embedded in the transparent substrate 501 , and the transmitted white light or cool white light is absorbed and suppressed by the titanium dioxide particles 502 in the transparent substrate 501 to filter out sunlight.
  • Medium and long wavelength components, blue light and violet light penetrate the blue light diffusing plate 5 .
  • titanium dioxide nano-particles 502 are made of titanium dioxide nano-film 503 and attached to the transparent substrate 501 , and the transmitted white light or cool white light is absorbed by the titanium dioxide nano-film 503 on the surface of the transparent substrate 501 . and suppression, filtering out the long-wavelength components of sunlight, blue light and violet light penetrating the blue light diffusing plate 5 .
  • Blue light scattering can be explained by Rayleigh scattering. Since the intensity of Rayleigh scattering is inversely proportional to the fourth power of wavelength, the wavelength of red light is longer, and the intensity of the scattered red light is very weak, while the wavelengths of blue and violet light are shorter. The scattering intensity is stronger. Therefore, atmospheric molecules are like a filter that filters out the long-wavelength components of sunlight, and sprinkles the remaining blue and violet light to the earth. The human eye is very insensitive to violet light, thus rendering the sky blue.
  • the diameter d of the nanoparticles In order to meet the requirements of Rayleigh scattering, the diameter d of the nanoparticles must be much smaller than the wavelength ⁇ of the incident light, usually the upper bound is about 1/10 of the wavelength of blue light, such as 48nm, at this time the diameter d of the nanoparticles can be 40nm, 30nm , 20nm, 10nm or 5nm.
  • the light emitted by the LED light source array is collimated into parallel light after passing through the collimating lens array 2 .
  • the parallel light is guided to the diffuser plate 4 through the honeycomb core material 3, so that the light is more uniform and soft.
  • the sun 6 warm light
  • the blue light diffusing plate 5 The blue sky (cold light) formed by scattering.
  • the invention introduces the diffuse blue sky and virtual sun into the indoor space, which can realize the lighting system, medical system and air purification system, and can be applied to indoor lighting, such as home lighting, underground shopping malls, parking lots, conference rooms, office buildings, etc. Lighting places can also be used for auxiliary treatment of depression, such as hospitals, rehabilitation centers, medical research institutions and other places.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Optical Elements Other Than Lenses (AREA)

Abstract

一种有效地解决缺乏自然光的条件下提供漫射成蓝天光的瑞利散射阳光灯，从上到下依次由LED光源阵列（1）、准直透镜阵列（2）、蜂窝芯材（3）、扩散板（4）和蓝光散射板（5）组成，LED光源阵列（1）包括第一准直透镜阵列（201）、第二准直透镜阵列（203）和安装在第一准直透镜阵列（201）和第二准直透镜阵列（203）之间的镜体阵列（202），LED光源阵列（1）由若干个LED灯珠（101）组成，每个LED灯珠（101）放置在每个第一准直透镜阵列（201）的焦点上，第二准直透镜阵列（203）与蜂窝芯材（3）一一对应阵列布置，扩散板（4）用于将不均匀光源转换为均匀分布、模糊网点的面光源；蓝光散射板（5）用于将透射的白光或冷白光漫射成蓝光。

Description

一种瑞利散射阳光灯 技术领域
本发明涉及光电技术领域，尤其涉及一种瑞利散射阳光灯。
背景技术
目前，有研究表明，在有日光的室内环境中人们表现更加良好并且感觉更加舒适。日光照射减少了人们工作压力和消极影响，增强了舒畅情绪和工作效率，并且从长远来看，改善了居住在室内的人的身心健康。
然而室内某些地方因某种因素不能够让日光照射进来，此时，创建虚拟太阳和漫射蓝天，可以安装在没有自然环境光的办公室、会议室、地下商场等场所，此外，当外界没有明显的视野时，许多封闭的办公室和房间看起来较幽闭，易让人感到抑郁，因此，瑞利散射阳光灯可解决上述问题。
发明内容
本发明的目的在于提供一种瑞利散射阳光灯，有效的解决缺乏自然光的条件下能够提供漫射蓝天光的瑞利散射阳光灯。
为实现上述目的，本发明的技术方案如下：
一种瑞利散射阳光灯，包括阳光灯壳体，所述阳光灯壳体由上至下依次由LED光源阵列、准直透镜阵列、蜂窝芯材、扩散板和蓝光散射板组成，所述准直透镜阵列包括第一准直透镜阵列、第二准直透镜 阵列和安装在第一准直透镜阵列和第二准直透镜阵列之间的镜体阵列，所述LED光源阵列由若干个LED灯珠组成，每个LED灯珠放置在每个第一准直透镜阵列的焦点上，第二准直透镜阵列与蜂窝芯材一一对应阵列布置，所述蜂窝芯材的底面贴合有扩散板，用于将不均匀光源转换为均匀分布、模糊网点的面光源；所述蓝光散射板与扩散板之间具有一定的漫射空间，且蓝光散射板固定安装在阳光灯壳体的底部，用于将扩散板透射的白光或冷白光漫射成蓝光。
进一步地，所述第一准直透镜阵列由多个第一准直透镜组成，每个第一准直透镜靠近LED光源的一面为入光面，远离LED光源的一面为出光面，其中入光面为凹面，出光面为球凸面；所述第二准直透镜阵列由多个第二准直透镜组成，每个第二准直透镜靠近LED光源的一面为入光面，远离LED光源的一面为出光面，其中入光面为平面，出光面为球凸面。
进一步地，所述第一准直透镜和第二准直透镜为透明固态材料，包括亚克力、玻璃。
进一步地，所述镜体阵列为多个黑色固体材质的正六边形棱柱体，且呈蜂窝状无缝拼接排布。
进一步地，所述蜂窝芯材的材质为铝合金、用树脂浸渍的玻璃纤维织物、芳族纤维纸、牛皮纸、石墨纤维或凯夫拉纤维的一种。
进一步地，所述扩散板为PC、PMMA、或贴合有扩散膜的透明玻璃制成，其中，与蜂窝芯材相连接的透明玻璃一面贴合有扩散膜，或透明玻璃两面均贴合有扩散膜。
进一步地，所述蓝光散射板由透明基材和相对于透明基材具有不同折射率且平均尺寸明显小于可见光波长的透明二氧化钛纳米颗粒组成，所述二氧化钛纳米颗粒可内嵌在透明基材内，或将二氧化钛纳米颗粒制成纳米薄膜黏贴在透明基材上。
进一步地，每个所述LED灯珠色温要求在5000K以上，主波长为400nm～500nm。
与现有技术相比，本发明的有益效果包括：将漫射蓝天和虚拟太阳引入室内空间，可实现照明系统、医疗系统、空气净化系统，既可应用于室内照明，如家庭照明、地下商场、停车场、会议室、办公大厦等需要照明的场所，也可用于辅助治疗抑郁症，如医院、康复中心、医学研究机构等场所。
附图说明
为了更清楚地说明本发明实施例的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例。其中：
图1是本发明实施例一种瑞利散射阳光灯的结构示意图；
图2是本发明实施例一种瑞利散射阳光灯的原理图；
图3是本发明实施例LED灯珠局部排布图；
图4是本发明实施例准直透镜阵列的局部结构示意图；
图5是本发明实施例第一准直透镜阵列排布图；
图6是本发明实施例第二准直透镜阵列排布图；
图7是本发明实施例第一准直透镜的结构示意图；
图8是本发明实施例第二准直透镜的结构示意图；
图9是本发明实施例蜂窝芯材的结构示意图；
图10是本发明实施例蓝光散射板的结构示意图；
图11是本发明实施例蓝光散射板的另一结构示意图；
图中：1、LED光源阵列，101、LED灯珠，2、准直透镜阵列，201、第一准直透镜阵列，2011、第一准直透镜，202、镜体阵列，203、第二准直透镜阵列，2031、第二准直透镜，3、蜂窝芯材，4、扩散板，5、蓝光散射板，501、透明基材，502、二氧化钛纳米颗粒，503、二氧化钛纳米薄膜，6、太阳。
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的一部分实施例，而不是全部实施例。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的前提下所获得的所有其他实施例，都应属于本发明保护的范围。
图1示出了本发明实施例的一种瑞利散射阳光灯，所述阳光灯由上至下依次由LED光源阵列1、准直透镜阵列2、蜂窝芯材3、扩散板4和蓝光散射板5组成。
其中，准直透镜阵列2包括第一准直透镜阵列201、第二准直透镜阵列203和安装在第一准直透镜阵列201和第二准直透镜阵列203 之间的镜体阵列202。LED光源阵列1由若干个LED灯珠101组成，每个LED灯珠101放置在每个第一准直透镜阵列201的焦点上，第二准直透镜阵列203与蜂窝芯材3一一对应阵列布置，蜂窝芯材3的底面贴合有扩散板4，用于将不均匀光源转换为均匀分布、模糊网点的面光源；蓝光散射板5与扩散板4之间具有一定的漫射空间，且蓝光散射板5固定安装在阳光灯壳体的底部，用于将扩散板透射的白光或冷白光漫射成蓝光。
如图3所示，本实施例为保证光强分布均匀，每个LED灯珠101放置于准直透镜阵列2的焦点且呈梅花形阵列布置。LED灯珠101的光源色温一般要求6000K～8000K，或5000K～10000K，或超过10000K。LED灯珠101的光源主波长430～470nm，或400nm～500nm。
结合图4至图8，第一准直透镜阵列201由多个第一准直透镜2011组成，每个第一准直透镜2011靠近LED光源的一面为入光面，远离LED光源的一面为出光面，其中入光面为凹面，出光面为球凸面。类似的，第二准直透镜阵列203由多个第二准直透镜2031组成，每个第二准直透镜2031靠近LED光源的一面为入光面，远离LED光源的一面为出光面，其中入光面为平面，出光面为球凸面。
其中，第一准直透镜2011和第二准直透镜2031为任何透明固态材质，包括但不限于亚克力、玻璃等，透镜的透光率一般为90～93％，或在一个较大范围，如超过93％或者低于80％。
镜体阵列202为多个黑色的正六边形棱柱体，且呈蜂窝状无缝拼接布置，与第一准直透镜阵列201和第二准直透镜阵列203一一对应 布置。
如图9所示，蜂窝芯材3的材质为铝合金、用树脂浸渍的玻璃纤维织物、芳族纤维纸、牛皮纸、石墨纤维或凯夫拉纤维的一种制成的黑色固体芯材，起导光和散热作用。
扩散板4为PC、PMMA、或贴合有扩散膜的透明玻璃、透明钢化玻璃制成，其中，扩散膜贴合在与蜂窝芯材相连接的透明玻璃一面，或透明玻璃两面均贴合有扩散膜。扩散板4的主要作用一是将不均匀光源转换成均匀分布、模糊网点的面光源，同时起到遮蔽蜂窝芯材或其他光学缺陷的作用；二是改善视角，增加光源柔和性，三是支撑背光架构，以免上面的光学材料受损。
具体的，扩散板4的透光率一般要求85％～90％，或80％～92％，或75％～95％。扩散板4的雾度一般要求65％～75％，或60％～80％，或55％～85％。
蓝光散射板5由透明基材501和相对于透明基材501具有不同折射率且平均尺寸明显小于可见光波长的透明二氧化钛纳米颗粒组成，二氧化钛纳米颗粒，具有吸收和抑制紫外线、自清洁、净化空气等功能。
作为本发明的一实施例如图10所示，二氧化钛纳米颗粒502均匀内嵌在透明基材501内，透射的白光或冷白光经透明基材501内二氧化钛颗粒502的吸收和抑制，过滤掉太阳光中长波成分，蓝光和紫光穿透蓝光散射板5。
作为本发明的一实施例如图11所示，二氧化钛纳米颗粒502制成二氧化钛纳米薄膜503贴合在透明基材501上，透射的白光或冷白 光经透明基材501表面的二氧化钛纳米薄膜503的吸收和抑制，过滤掉太阳光中长波成分，蓝光和紫光穿透蓝光散射板5。
蓝光散射可以用瑞利散射来解释，由于瑞利散射的强度与波长四次方成反比，红光的波长较长，被散射的红光强度就很弱，而蓝、紫光的波长较短，散射强度就强。所以，大气分子就好比一张滤网，把太阳光中长波的成分过滤掉，将剩下的蓝、紫光洒向大地。人类的眼睛对紫色光非常不敏感，因此呈现的天空是蓝色的。
为了要符合瑞利散射的要求，纳米颗粒的直径d必须远小于入射光的波长λ，通常上界大约是蓝光波长的1/10，如48nm，此时纳米颗粒的直径d可为40nm、30nm、20nm、10nm或5nm。
如图2所示，LED光源阵列发出的光，经过准直透镜阵列2后，光线准直为平行光。平行光经蜂窝芯材3导光到扩散板4，使得光线更加均匀柔和。在观察者正上方，看到的是平行光透过视界范围内局部蜂窝芯材3而形成的太阳6(暖光)，而其它区域光线受蜂窝芯材遮挡，看到的是经过蓝光散射板5散射而形成的蓝天(冷光)。
本发明将漫射蓝天和虚拟太阳引入室内空间，可实现照明系统、医疗系统、以及空气净化系统，既可应用于室内照明，如家庭照明、地下商场、停车场、会议室、办公大厦等需要照明的场所，也可用于辅助治疗抑郁症，如医院、康复中心、医学研究机构等场所。
以上所述，仅为本发明的具体实施方式，但本发明的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本发明揭露的技术范围内，可轻易想到各种等效的修改或替换，这些修改或替换都应涵盖 在本发明的保护范围之内。因此，本发明的保护范围应以权利要求的保护范围为准。

Claims (8)

  1. 一种瑞利散射阳光灯，包括阳光灯壳体，其特征在于，所述阳光灯壳体由上至下依次由LED光源阵列、准直透镜阵列、蜂窝芯材、扩散板和蓝光散射板组成，所述准直透镜阵列包括第一准直透镜阵列、第二准直透镜阵列和安装在第一准直透镜阵列和第二准直透镜阵列之间的镜体阵列，所述LED光源阵列由若干个LED灯珠组成，每个LED灯珠放置在每个第一准直透镜阵列的焦点上，第二准直透镜阵列与蜂窝芯材一一对应阵列布置，所述蜂窝芯材的底面贴合有扩散板，用于将不均匀光源转换为均匀分布、模糊网点的面光源；所述蓝光散射板与扩散板之间具有一定的漫射空间，且蓝光散射板固定安装在阳光灯壳体的底部，用于将扩散板透射的白光或冷白光漫射成蓝光。
  2. 根据权利要求1所述的瑞利散射阳光灯，其特征在于，所述第一准直透镜阵列由多个第一准直透镜组成，每个第一准直透镜靠近LED光源的一面为入光面，远离LED光源的一面为出光面，其中入光面为凹面，出光面为球凸面；所述第二准直透镜阵列由多个第二准直透镜组成，每个第二准直透镜靠近LED光源的一面为入光面，远离LED光源的一面为出光面，其中入光面为平面，出光面为球凸面。
  3. 根据权利要求1或2所述的瑞利散射阳光灯，其特征在于，所述第一准直透镜和第二准直透镜为透明固态材料，包括亚克力、玻璃。
  4. 根据权利要求1所述的瑞利散射阳光灯，其特征在于，所述镜体阵列为多个黑色固体材质的正六边形棱柱体，且呈蜂窝状无缝拼接排布。
  5. 根据权利要求1所述的瑞利散射阳光灯，其特征在于，所述蜂窝芯材的材质为铝合金、用树脂浸渍的玻璃纤维织物、芳族纤维纸、牛皮纸、石墨纤维或凯夫拉纤维的一种。
  6. 根据权利要求1所述的瑞利散射阳光灯，其特征在于，所述扩散板为PC、PMMA、或贴合有扩散膜的透明玻璃制成，其中，与蜂窝芯材相连接的透明玻璃一面贴合有扩散膜，或透明玻璃两面均贴合有扩散膜。
  7. 根据权利要求1所述的瑞利散射阳光灯，其特征在于，所述蓝光散射板由透明基材和相对于透明基材具有不同折射率且平均尺寸明显小于可见光波长的透明二氧化钛纳米颗粒组成，所述二氧化钛纳米颗粒可内嵌在透明基材内，或将二氧化钛纳米颗粒制成纳米薄膜黏贴在透明基材上。
  8. 根据权利要求1所述的瑞利散射阳光灯，其特征在于，每个所述LED灯珠色温要求在5000K以上，主波长为400nm～500nm。
PCT/CN2020/107790 2020-07-08 2020-08-07 一种瑞利散射阳光灯 WO2022007095A1 (zh)

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CN111649271A (zh) * 2020-07-08 2020-09-11 千奥星科南京生物科技有限公司 一种瑞利散射阳光灯
GB2615122A (en) * 2022-01-29 2023-08-02 Innerscene Ltd Optical display device

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CN111649271A (zh) * 2020-07-08 2020-09-11 千奥星科南京生物科技有限公司 一种瑞利散射阳光灯
CN111649271B (zh) * 2020-07-08 2023-06-20 喜洋阳(南京)科技发展有限公司 一种瑞利散射阳光灯
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