WO2012062040A1 - 一种内雕刻制作的导光板及其制作方法、照明灯具 - Google Patents

一种内雕刻制作的导光板及其制作方法、照明灯具 Download PDF

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Publication number
WO2012062040A1
WO2012062040A1 PCT/CN2011/001852 CN2011001852W WO2012062040A1 WO 2012062040 A1 WO2012062040 A1 WO 2012062040A1 CN 2011001852 W CN2011001852 W CN 2011001852W WO 2012062040 A1 WO2012062040 A1 WO 2012062040A1
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Prior art keywords
light
light guide
guide plate
light guiding
guiding
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PCT/CN2011/001852
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English (en)
French (fr)
Inventor
刘锡
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深圳安嵘光电产品有限公司
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Publication of WO2012062040A1 publication Critical patent/WO2012062040A1/zh

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Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00—Illuminated signs; Luminous advertising
    • G09F13/18—Edge-illuminated signs
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0033—Means for improving the coupling-out of light from the light guide
    • G02B6/0035—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00—Illuminated signs; Luminous advertising
    • G09F13/04—Signs, boards or panels, illuminated from behind the insignia
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0033—Means for improving the coupling-out of light from the light guide
    • G02B6/0035—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it
    • G02B6/004—Scattering dots or dot-like elements, e.g. microbeads, scattering particles, nanoparticles
    • G02B6/0043—Scattering dots or dot-like elements, e.g. microbeads, scattering particles, nanoparticles provided on the surface of the light guide

Definitions

  • the invention relates to a light guide plate, in particular to a light guide plate suitable for various interior lighting, art lighting and decorative lighting, decorative materials, window display, cabinet rejection, display stand and the like, and a manufacturing method thereof.
  • the light guide plate is used to transmit light emitted from a light source such as a fluorescent lamp, a CCFL, or an LED through a light guiding point or a light guiding groove designed by an optical principle, under the action of a reflective film (reflecting plate) and a diffusion film. Convert a line or point source into a surface source.
  • a light source such as a fluorescent lamp, a CCFL, or an LED
  • a reflective film reflecting plate
  • diffusion film diffusion film
  • the existing light guide plate is provided with a light guiding point outside thereof, and often does not receive good protection due to exposure of the light guiding point, and is susceptible to yellowing caused by air oxidation and dust pollution, resulting in a decrease in light guiding efficiency, light.
  • the table is greatly reduced, and at the same time, the service life of the light guide plate is also lowered.
  • the invention provides an internal problem in order to solve the technical problem that the light guide point of the prior art light guide plate is exposed to yellow, which is easily caused by air oxidation and dust pollution, resulting in a decrease in light guiding efficiency, a large light attenuation, and a reduced service life.
  • the technical solution adopted by the present invention is to design an inner engraving light guide plate on which a light guiding point is disposed, and the light guiding point includes an inner guide formed by laser engraving inside the guiding t. light spot.
  • the light guiding point further includes an outer light guiding spot disposed outside the light guiding plate.
  • the invention also provides a method for manufacturing a light guide plate made by internal engraving, comprising the following steps:
  • the laser engraving machine engraves the inner light guiding point inside the guide according to the design drawing file.
  • the engraving of the inner light guiding point inside the guiding body further includes forming an outer guiding light spot outside the light guiding plate.
  • the outer light spot is made by printing or engraving.
  • the invention also provides a lighting fixture comprising a light source and a light guide plate, wherein the light guide plate is provided with a light guiding point, and the light guiding point comprises an inner light guiding point which is formed inside the light guiding plate by laser engraving.
  • the light guiding point further includes an outer light guiding spot disposed outside the light guiding plate.
  • the light source is disposed on a side of the light guide plate.
  • the invention makes the inner light guiding point inside the light guiding plate by using the inner carving method, so that the light guiding point is isolated from the outside, and the yellowing is not caused by air vaporization and dust pollution, thereby improving the light guiding efficiency and reducing the light guiding efficiency.
  • the light decay improves the service life of the light guide plate.
  • FIG. 1 is a schematic structural view of a first embodiment of a light guide plate engraved in the present invention
  • FIG. 2 is a schematic structural view of a second embodiment of a light guide plate engraved in the present invention.
  • FIG. 3 is a schematic structural view of a preferred embodiment of a lighting fixture of the present invention. detailed description
  • an inner guiding light spot 11 is disposed inside the light guiding plate 1 which is engraved in the first embodiment of the present invention, and the inner guiding light spot is formed by laser engraving inside the light guiding plate to prevent the light guiding point from being
  • the external air and dust are in contact with substances that easily contaminate the light guiding point, thereby improving the light guiding efficiency, reducing the light decay, and improving the service life of the light guide plate.
  • the inner part of the guide ⁇ ⁇ engraves the inner light guide point by internal engraving, and the inner guide light spot can be engraved into light guide points with different shapes, different sizes or different density distributions and different depth distributions.
  • the 3D light guiding point is engraved by the laser engraving machine. Since the design of the light guiding point is 3D, the refraction of the 3D light guiding point is more uniform and three-dimensional, and the 3D light guiding plate with true stereoscopic effect is highlighted.
  • the light guiding point can be any shape, such as a round shape, a straight shape, a cross type, and a star shape.
  • the 2D and 3D light guiding points can also be engraved inside the light guide plate. At this time, the light is more evenly refracted when passing through the light guiding point, the plane effect is good, and the light guiding efficiency is higher.
  • the inside of the light guide plate 2 which is engraved in the second embodiment of the present invention is provided with an inner guide spot 21 which is formed by laser engraving inside the guide t.
  • An outer light guide 22 is also disposed outside the light guide plate 2, and the outer light guide 22 can be formed by printing, engraving, etching, or the like.
  • the outer light spot 22 can be combined with the inner light guiding point 21 to make the light more uniform through the light guide plate, the light guiding efficiency is high, and the three-dimensional effect is better.
  • the light guide plate can be set to different shapes as needed, such as a flat plate, a cylinder, a polygonal cylinder, or the like. Light guiding points of different shapes, different sizes or different density distributions are disposed on the surfaces of the various shapes.
  • the material of the light guide plate may be a light guide material such as PMMA, crystal glass or PC.
  • the manufacturing method of the light guide plate comprises the following steps:
  • Step 1 Design the inner guiding spot of the guiding guide, and introduce the design drawing file into the laser engraving machine;
  • Step 2 The laser engraving machine engraves the inner light guiding point inside the light guiding plate according to the design drawing file.
  • the engraving principle of the laser engraving machine is as follows: When the energy density of the laser is greater than a certain destruction threshold of the destruction of the light guide plate, it can destroy the light guide plate there.
  • the energy density of the laser at some point is related to the size of the spot at that point. The same laser beam, the smaller the spot, the greater the energy density. In this way, by proper focusing, the energy density of the laser can be lower than the destruction threshold of the light guide plate before entering the light guide plate and reaching the processing region, and in the region where the desired processing is exceeded, the laser is in a very short time.
  • a pulse is generated, the energy of which can thermally rupture the inside of the light guide plate in an instant, thereby generating a very small break point, and the predetermined shape is carved inside the guide t, while the rest of the guide U remains intact.
  • the laser engraving machine first converts the 2D or 3D image/portrait into a point cloud image through dedicated point cloud conversion software, and then controls the position of the light guide plate and the output of the laser through the laser control software according to the arrangement of the points, and the light guide plate is at At a certain position, the focused laser will produce a small break point inside the light guide plate, and a large number of small break points form the light guide point to be engraved.
  • the laser engraving machine can be used to sculpt the inner guiding spot of the light guide plate into any shape, such as a 3D or 2D shape, or engrave the inner guiding spot so that the inner guiding spot forms various patterns, so that it is not necessary to re-engraving or Set the pattern to ensure that the pattern shines evenly.
  • the outer guiding light spot can also be made outside the light guiding plate.
  • the outer guiding spot can be made by various methods such as printing, engraving, etching, and mold.
  • the outer light spots can also be formed into different shapes and patterns, and various dyeing materials, self-luminous materials, and the like can be disposed on the outer light guiding points to construct patterns of different colors or patterns that can be displayed without illumination of the light source.
  • the illumination lamp of the present invention comprises a light source 31 and a light guide plate 32, wherein the light source 31 is disposed on a side surface of the light guide plate 32, and the internal light guide point 321 is disposed inside the outer surface of the light guide plate 32, and the outer light guide point 322 is disposed outside.
  • the inner light guiding point 321 is formed inside the light guiding plate by laser engraving, and the outer guiding light spot 322 is formed outside the light guiding plate by printing, engraving, etching or the like.
  • the light guiding points can be made into different shapes, sizes, densities and patterns, and various dyeing materials, self-luminous materials, etc. can be disposed on the outer guiding spot to construct patterns of different colors or patterns that can be displayed without illumination of the light source. .
  • the light source can also be disposed on the front side of the light guide plate, or the external light guide point can be disposed outside.
  • the existing light guide plates are made of light guide points on the outer surface, which is convenient to manufacture, but the light guide points are exposed to the environment, and the contaminated light guide points are prone to yellowing and depositing dust.
  • the increase is reduced, the light effect is reduced, the application range is narrow, and the design is also limited.
  • the inner engraved light guide plate can better protect the light guide point, is not easily polluted by the environment and dust, can extend the service life, and can reduce the energy. Consumption, improve light efficiency.
  • the invention has wider application and has artistic appreciation value, and can be used not only for lighting but also for decorations, handicrafts and the like.
  • the light is even and soft, the shape is vivid and beautiful, the shape is ever-changing, the three-dimensional sense is stronger, the light guide plate illumination application is extended, and the energy saving and environmental protection are extended.
  • Products are widely used in various types of lighting, art lighting, decorative lighting, bathtubs, crafts, art, furniture lighting, decorative materials, window, cabinets, display stands, guide cards and other lighting areas.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Optics & Photonics (AREA)
  • Illuminated Signs And Luminous Advertising (AREA)
  • Planar Illumination Modules (AREA)

Description

说 明 书
一种内雕刻制作的导; JbfeUSL其制作方法、 照明灯具 技术领域
本发明涉及导光板， 尤其是涉及一种适用于各类照明、 艺术照明及装饰照明、 装饰材料、 橱窗、橱拒、展示台等方面的内雕刻制作的导光板及其制作方法和具有该导光板的照明灯具。
背景技术
在液晶显示屏制造领域， 导光板用于将荧光灯、 CCFL、 LED 等光源发出的光透过按光 学原理设计的导光点或导光槽， 在反光膜（反射板）和扩散膜作用下， 将线光源或点光源转 变为面光源。 为使导光板能均匀发光， 必须通过各种疏密、 大小不一的导光点， 以保证光线 往各个方向反射的效率基本相同。 由于导 能将光线均匀射出， 因而可广泛应用于照明、 装饰、 鱼缸、 广告、 指示标示牌等领域。 但是， 现有的导光板是在其外部设置导光点， 常常 会由于导光点外露不能收到很好的保护， 容易受到空气氧化及尘埃污染而造成黄变， 导致导 光效率下降， 光表减较大， 同时， 也使导光板的使用寿命下降。
发明内容
本发明为了解决现有技术导光板的导光点外露， 容易受到空气氧化及尘埃污染而造成黄 变， 导致导光效率下降、 光衰减较大、 使用寿命下降的技术问题， 提供了一种内雕刻制作的 导光板及其制作方法和具有该导光板的照明灯具。
为解决上述技术问题， 本发明釆用的技术方案为设计一种内雕刻制作的导光板， 其上设 置有导光点， 所述导光点包括采用激光内雕制作在导 t 内部的内导光点。
所述导光点还包括设置在导光板外部的外导光点。
本发明还提供了一种内雕刻制作的导光板的制作方法， 包括下列步骤：
设计导光板的内导光点， 并将设计图档导入激光内雕刻机；
激光内雕刻机按照设计图档在导 内部雕刻内导光点。
所述在导^ L内部雕刻内导光点之后还包括在导光板的外部制作外导光点。
所述外导光点采用印刷或雕刻制作。
本发明还提供了一种照明灯具， 包括光源和导光板， 所述导光板上设置有导光点， 所述 导光点包括采用激光内雕制作在导光板内部的内导光点。
所述导光点还包括设置在导光板外部的外导光点。 所述光源设置在导光板的侧面。
本发明通过采用内雕的方式在导光板的内部制作内导光点 , 从而使导光点与外部隔绝， 不会因受到空气氣化及尘埃污染而造成黄变， 提高了导光效率， 减少了光衰， 提高了导光板 的使用寿命。
附图说明
下面结合实施例和附图对本发明进行详细说明， 其中：
图 1是本发明内雕刻制作的导光板的实施例一结构示意图；
图 2是本发明内雕刻制作的导光板的实施例二结构示意图；
图 3是本发明照明灯具的优选实施例结构示意图。 具体实施方式
请参见图 1， 本发明实施例一内雕刻制作的导光板 1的内部设置有内导光点 11， 该内导 光点釆用激光内雕制作在导光板的内部， 以防止导光点与外界空气和灰尘等易污染导光点的 物质接触， 从而提高了导光效率， 减少了光衰， 提高了导光板的使用寿命。
导^ ^的内部采用内雕刻方式雕刻内导光点， 内导光点可雕刻成不同形状、 不同大小或 不同密度分布、 不同深度分布的导光点。 本实施例利用激光内雕刻机雕刻 3D导光点， 由于 导光点的设计是 3D, 从而 3D导光点的折射更加均匀、 立体， 凸显有真正的立体效果的 3D 导光板。 导光点可以是任何形状的， 如圆型、 一字型、 十字型和星型等。
当然， 也可在导光板的内部雕刻 2D、 3D导光点， 此时， 光线经过导光点时折射更加均 匀， 平面效果佳， 导光效率更高。
请参见图 2。 本发明实施例二内雕刻制作的导光板 2的内部设置有内导光点 21， 该内导 光点采用激光内雕制作在导 t 的内部。 在导光板 2的外部还设置有外导光点 22, 外导光点 22可以采用印刷、 雕刻、 腐蚀等方式制作。 外导光点 22可与内导光点 21结合， 使光线经过 导光板的折射更加均匀、 导光效率高、 立体， 凸显更好的立体效果。
导光板可以根据需要设置成不同形状， 如平板状、 圆柱体、 多边形柱体等。 不同形状、 不同大小或不同密度分布的导光点设置于各种形状的导^的表面。 导光板的材料可以是亚 克力 （PMMA )、 水晶玻璃和 PC等导光材料。
导光板的制作方法包括下列步骤：
步骤一、 设计导^的内导光点， 并将设计图档导入激光内雕刻机；
步驟二、 激光内雕刻机按照设计图档在导光板内部雕刻内导光点。 激光内雕刻机的雕刻原理如下： 当激光的能量密度大于使导光板破坏的某一临 即破 坏阈值时，其便能破坏该处的导光板。 而激光在某处的能量密度与它在该点光斑的大小有关， 同一束激光， 光斑越小的地方产生的能量密度越大。 这样， 通过适当聚焦， 可以使激光的能 量密度在进入导光板及到达加工区之前低于导光板的破坏阈值， 而在希望加工的区域则超过 这一临 ^Ht, 激光在极短的时间内产生脉沖， 其能量能够在瞬间使导光板内部受热破裂， 从 而产生极小的破坏点， 在导 t 内部雕出预定的形状， 而导 U 的其余部分则保持原样完好 无损。
激光内雕机首先通过专用点云转换软件，将二维或三维图像 /人像转换成点云图像， 然后 根据点的排列， 通过激光控制软件控制导光板的位置和激光的输出， 在导光板处于某一特定 位置时， 聚焦的激光将在导光板内部打出一个个的小破坏点， 大量的小破坏点就形成了要内 雕的导光点。
利用激光内雕机可以将导光板的内导光点雕成任意形状， 如 3D或 2D形状， 或者将内导 光点雕刻成使内导光点构成各种图案， 这样既不需要重新雕刻或设置图案， 又能保证图案发 光均匀。
在内雕好内导光点后， 还可以在导光板的外部制作外导光点。 所述外导光点可以釆用印 刷、 雕刻、 腐蚀、 模具等多种方式制作。 外导光点也可以制作成不同的形状、 图案， 也可以 在外导光点上设置各种染色材料、 自发光材料等， 以构建不同颜色的图案或不需要光源照明 就能显示的图案。
请参见图 3。 本发明照明灯具的包括光源 31和导光板 32, 其中， 光源 31设置在导光板 32的側面， 导;) 32内部设置有内导光点 321 , 外部设置有外导光点 322。 内导光点 321采 用激光内雕制作在导光板的内部， 外导光点 322采用印刷、 雕刻、 腐蚀等方式制作在导光板 的外部。 导光点可以制作成不同的形状、 大小、 密度和图案， 还可以在外导光点上设置各种 染色材料、 自发光材料等， 以构建不同颜色的图案或不需要光源照明就能显示的图案。 当然， 光源也可以设置在导光板的正面， 还可以不在外部设置外导光点。
与现有技术相比， 本专利具有以下优点：
( 1 )现有的导光板都是采用在外表面制作导光点， 制作方便， 但导光点外露容易被环境 污染， 被污染的导光点容易产生黄变及沉积灰尘而令导光板光表减增大， 降低了光效， 应用 范围比较窄， 在设计方面也限制很多， 而采用内雕刻导光板能更好的保护导光点， 不易被环 境及尘埃污染， 能加长使用寿命， 减少能耗， 提高光效。
( 2 )本发明应用更广泛， 具有艺术欣赏价值， 不但可以用于照明、 也可以用于装饰品、 工艺品等。 其光线均匀柔和、 外形生动美观、 形状千变万化、 立体感更强、 延长了导光板照 明应用、 节能环保。 产品广泛应用于各类照明、 艺术照明、 装饰照明、 浴缸、 工艺品、 艺术 品、 家具照明、 装饰材料、 橱窗、 橱柜、 展示台、 导向牌等照明领域。

Claims

权 利 要 求 书
1、 一种内雕刻制作的导光板， 其上设置有导光点， 其特征在于： 所述导光点包括采用激 光内雕制作在导光板内部的内导光点。
2、根据权利要求 1所述的内雕刻制作的导光板， 其特征在于： 所述导光点还包括设置在 导光板外部的外导光点。
3、 一种内雕刻制作的导光板的制作方法， 其特征在于包括下列步骤：
设计导光板的内导光点， 并将设计图档导入激光内雕刻机；
激光内雕刻机按照设计图档在导光板内部雕刻内导光点。
4、 根据权利要求 3所述的内雕刻制作的导光板的制作方法， 其特征在于： 所述在导光 板内部雕刻内导光点之后还包括在导;^的外部制作外导光点。
5、 根据权利要求 4所述的内雕刻制作的导光板的制作方法， 其特征在于： 所述外导光 点采用印刷或雕刻制作。
6、一种照明灯具， 包括光源和导光板， 所述导光板上设置有导光点， 其特征在于： 所述 导光点包括釆用激光内雕制作在导光板内部的内导光点。
7、根据权利要求 6所述的照明灯具， 其特征在于： 所述导光点还包括设置在导光板外部 的外导光点。
8、 根据权利要求 6所述的照明灯具， 其特征在于： 所述光源设置在导光板的側面。
PCT/CN2011/001852 2010-11-11 2011-11-03 一种内雕刻制作的导光板及其制作方法、照明灯具 WO2012062040A1 (zh)

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