WO2013056567A1 - 一种用于灯箱的模组型光源盒装置 - Google Patents

一种用于灯箱的模组型光源盒装置 Download PDF

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Publication number
WO2013056567A1
WO2013056567A1 PCT/CN2012/077566 CN2012077566W WO2013056567A1 WO 2013056567 A1 WO2013056567 A1 WO 2013056567A1 CN 2012077566 W CN2012077566 W CN 2012077566W WO 2013056567 A1 WO2013056567 A1 WO 2013056567A1
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WO
WIPO (PCT)
Prior art keywords
light
light source
front cover
light shielding
box
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Application number
PCT/CN2012/077566
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English (en)
French (fr)
Inventor
王默文
Original Assignee
北京莱易龙光电科技有限公司
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Application filed by 北京莱易龙光电科技有限公司 filed Critical 北京莱易龙光电科技有限公司
Publication of WO2013056567A1 publication Critical patent/WO2013056567A1/zh

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Classifications

    • 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
    • F21V7/005—Reflectors for light sources with an elongated shape to cooperate with linear light sources
    • 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]
    • 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
    • G09F13/14—Arrangements of reflectors therein
    • G09F2013/145—Arrangements of reflectors therein curved reflectors

Definitions

  • the invention relates to the field of light box technology.
  • the existing light box reflector plates are mostly a large integral plate structure, which is very inconvenient in installation operation due to the large volume and weight, especially for the bottom open cover or the side open cover light box structure.
  • the operation space is narrower.
  • the existing light box also has a problem that the thickness of the light box is too large, and the light reflected by the reflector is not uniform, resulting in an unsatisfactory effect of the light box display. Therefore, there is a need for a new light box structure design to solve the above problems.
  • the technical problem to be solved by the present invention is to provide a modular light source box device for a light box, which overcomes the problems of excessive thickness, poor brightness or unevenness of the existing light box, and inconvenience in installation and maintenance of the reflector.
  • the present invention provides a module type light source box device for a light box, comprising a box body, the box body comprising a transparent front cover plate and a reflection plate, the front cover plate and the reflection plate
  • the opposite arrangement forms an accommodating space for accommodating the light source
  • the front cover has at least one light shielding portion opposite to the position of the light source.
  • the light source is isolated from the outside by using the sealed box accommodating space, thereby avoiding the influence of the adsorbed dust on the brightness and uniformity of the light box; meanwhile, using the module type light source box device provided by the invention , the reflector of the entire light box can be decomposed into multiple modules to assemble, single mode
  • the group is not only light in weight, small in size, but also housed in a module box, even if it is easy for one person to complete the installation or maintenance work, especially for the bottom opening or side opening type light box, no need for great operation.
  • the space can conveniently carry out the loading and unloading operation of the module from the opening cover, and the structure of the invention also reduces the overall thickness of the light box, and the overall light is more uniform.
  • FIG. 1 is a perspective view of a modular light source box device according to an embodiment of the invention.
  • Figure 2 is a front elevational view of Figure 1.
  • FIG. 3 is a perspective view of a module type light source box according to another embodiment of the invention.
  • FIG. 4 is an exploded perspective view of a light box reflector module device according to an embodiment of the invention.
  • Fig. 5 is a partial enlarged view of Fig. 4.
  • FIG. 6 is a partially enlarged schematic view of an edge sealing structure according to an embodiment of the invention.
  • FIG. 7 is a partially enlarged schematic view showing the structure of a mounting bar according to an embodiment of the invention. detailed description
  • an embodiment of the present invention provides a module type light source box device for a light box, comprising a box body 10, the box body 10 includes a transparent front cover 11 and a reflector.
  • the front cover 11 is disposed opposite to the reflector to form a receiving space for accommodating the light source, and the front cover 11 has at least one light shielding portion 12 opposite to the position of the light source.
  • a complete light box light source system can be constructed.
  • the existing light box generally needs to provide a whole piece of soft light plate after the display screen, so that the light with different intensity and intensity is uniformly softened and then irradiated onto the screen.
  • the invention adopts the light source box structure, and the transparent front cover plate can use the soft light plate material to play the role of softening the light emitted by the light source, which is equivalent to the light emitted by the entire light source system. After the treatment of the light, it is no longer necessary to set a whole piece of soft light board, saving the cost.
  • the transparent front cover 11 may be formed of a fully transparent or translucent material, and the light shielding portion 12 may be a light shielding layer structure formed of an opaque or translucent material on the front cover, for example, by screen printing. A brush or the like is attached to the front cover.
  • the position of the light shielding portion 12 is directly opposite to the LED light source, thereby avoiding the direct illumination of the direct light of the LED to the display screen, thereby making the overall light more uniform.
  • the display screen if the display screen is too close to the light source, the dark area of other areas will be caused by the light from the area closest to the light source, and the light of the overall picture will not be hooked, and even the picture can be seen in the picture.
  • the bright spot of the light source therefore, the distance between the display and the light source has to be extended, but this causes an increase in the overall thickness of the light box, which not only increases the manufacturing cost but also wastes space.
  • the portion of the strong light is blocked by the light shielding portion, or a part of the light is filtered to be substantially consistent with the light intensity of other regions, thereby avoiding the brightness of the screen when the display screen is closer to the light source.
  • the area of the light shielding portion can be specifically designed according to the light intensity, the distance between the screen and the light source, and the shape of the light source.
  • FIG 3 is a perspective view of a module-type light source box according to another embodiment of the present invention, including a box body 20, the box body 20 includes a transparent front cover 21 and a reflector 22, The front cover 21 is disposed opposite to the reflector 22 to form a receiving space for accommodating the light source, and the front cover 21 has a plurality of light shielding portions 23 opposite to the position of the light source.
  • the light source in the light source box shown in Fig. 3 is a light tube, and the light shielding portion 23 has a plurality of light shielding strip shapes parallel to the light tube.
  • the shape of the reflecting plate in Fig. 3 is symmetrical from the bulb position 24 to the wavy or polygonal line on both sides, and may be other shapes such as a concave arc shape.
  • the light-shielding strip 23 can be a continuous light-shielding line; or it can be composed of a plurality of intermittent light-shielding points, and the gap between the light-shielding points can transmit the light of the light source, so as not to block all the light of the strong light part, so as to avoid causing black line.
  • the light shielding portion may include two light shielding strips parallel to the light tube, the gap between the two light shielding strips is opposite to the light tube, and the diameter of the gap is smaller than the diameter of the light tube. In this way, a part of the strongest light can be transmitted through the gap, but this part of the strong light does not pass too much, and the transmitted strong light can be adjusted by the width of the gap.
  • the light shielding portion may include a plurality of light shielding strips parallel to the light tube, for example, six as shown in FIG. 3, and the plurality of light shielding strips may be symmetrically distributed from the position of the tube to both sides.
  • the light source may include a plurality of LEDs, and the light shielding portion is The position of the LED is relative to the shading point.
  • the light-shielding point of the present invention may be a circular or polygonal or mesh structure; it may also be a hollow circular (annular) or polygonal structure.
  • the hollow portion of the light-shielding point faces the light source, and can control the transmitted strong light flux as described above.
  • the area of the hollow portion can be controlled to be less than 50% of the area of the light-shielding portion. To achieve a balance between distance and brightness uniformity.
  • the distance between the front cover and the display screen is dl when there is no shading portion; the distance between the front cover and the display screen is d2 when using the solid shading portion; In the shade section, the distance between the front cover and the display screen is d3; then there is a relationship of d3 ⁇ d2 ⁇ dl.
  • the shading portion is not used, the distance is too close to make the light source easily form a bright spot on the screen; and the solid shading portion is easy to form a dark point at the position of the light source when the distance is too close; and the annular shading portion can be closer to this.
  • a balance of brightness is obtained on the distance.
  • FIG. 4 it is an exploded view of a reflector module (light source box) according to another embodiment of the present invention, including a reflector 101, an upper side panel 102, a lower side panel 103, a left edge seal 104, a right edge 105 and a transparent front cover 106; the front cover 106 is disposed opposite to the reflector 101, and is enclosed by the upper and lower side plates 102, 104 and the left and right edges 104, 105 to form a sealed receiving space.
  • the reflector 101 has a plurality of light source mounting holes.
  • the light source can be varied, such as a light bulb, a light tube, or an LED illuminator.
  • the shape of the reflector may be various, for example, at least one groove may be formed.
  • the reflector 101 has two recesses, and the light source mounting hole 1011 may be located in the recess. The bottom of the slot.
  • the mounting person can install the light source on the reflecting plate in the accommodating space through the mounting hole 1011, and the required circuit components such as wires or circuit boards can be installed behind the reflecting plate through the mounting holes.
  • the reflector may be screwed to the upper and lower side panels by an outer flange 1012 formed in the middle of the bottom edge.
  • the reflector plate does not necessarily have to be connected to the upper and lower side panels by the outer flange design.
  • connection of the left and right edge seals to the upper and lower side panels can be The function of connecting the reflectors is enclosed, and the connection of the flared edges 1012 further serves to strengthen the joint strength.
  • the main function of the left and right edge seals is to fix the front cover while sealing on the side.
  • the shape of the edge banding may be a flat shape or an angle steel shape (forming an inner flange shape), etc., all of which are possible, in particular
  • an inner flange is generally formed to press the front cover.
  • the edge band since the edge band has a certain thickness and width, when it is located on the light path, it will cause some occlusion of the light source light to form a weak light region; and since the edge band is located at the edge of the module device, When the light boxes are combined and used side by side, the weak light region is not filled with light and the range is increased, so that dark areas or black roads are easily formed at the edge sealing position.
  • a portion of the left and right edges that are higher than the left and right sides of the reflector may be formed of a transparent material.
  • the left and right edges may be entirely made of a transparent material, which obviously belongs to the protection scope of the present invention. . Since the transparent material causes less loss of light, the formation of dark areas can be avoided.
  • the portion where the left and right edges are higher than the left and right sides of the reflector may be integrally formed with the front cover or fixed separately, which is not limited in the present invention.
  • the front cover can be fixed by the engagement of the inner flange of the upper and lower edges of the left and right edges with the front cover.
  • the front cover can be fixed to the upper or lower side of the inner flange by bonding; or the front cover can be fastened under the inner flange by pressing, so that the front cover is fixed.
  • the shape of the hollow portion may be various, such as an elliptical shape, a square shape, or the like, or a shape such as a sawtooth wave or a square wave-shaped notch, as long as it can block light as much as possible while fixing the front cover.
  • a vertical edge may be further formed on the outer edge of the inner flange, such as As shown in Fig. 6, the vertical edge 10511 enhances the strength of the entire inturned edge 1051, thereby also enhancing the strength of the right edge 105.
  • the right edge 105 and the upper and lower side plates can be inserted and closed by the plug portion 1052.
  • the plug-in structure is not only strong but also plays a role in position correction.
  • the device of the present invention may further include at least one light source mounting strip 106.
  • the mounting strip is disposed behind the reflective plate and connected to the upper and lower side plates, and has a mounting strip thereon.
  • the plurality of light source mounting portions 1061 are positioned corresponding to the light source mounting holes 1011 on the reflecting plate.
  • a support member 107 may be added under the mounting strip 106 and fixed to the sealing edge to support the mounting strip from the middle portion to prevent the mounting strip from collapsing, and also It enhances the strength of the entire reflector.
  • the mounting strip 106 may be a groove type, and the groove edge 1062 is in contact with the reflecting plate.
  • the plurality of light source mounting pieces 1061 are disposed in the notch, and the light source mounting portion is located on the mounting piece.
  • the bottom of the notch can also accommodate the light source circuit wires and the like drawn from the mounting piece, and the wires are arranged in the closed space in the slot, which is very safe and convenient.
  • the light source can be installed and fixed in advance and then installed in the module device as a whole, just as convenient as installing a lamp tube, thereby improving the efficiency of on-site assembly;
  • the mounting bar supports the reflector plate below, and strengthens The stability of the overall structure; on the other hand, since the light source mounting strip carries and fixes the light source, the structural design of the mounting portion in the reflector is simplified.
  • the transparent material according to the present invention refers to a material that can transmit light, such as a transparent or translucent material such as glass, PC board, transparency board, soft board, frosted glass.
  • the semi-transparent front cover (such as a soft plate, milk whiteboard, etc.) to make the light from the light source as much as possible.
  • the front cover reflects part of the light back to the reflector and then reflects it twice. In this way, the light emitted by the light source is uniformly processed by the translucent front cover and then illuminated to the display direction, so that the translucent front cover is transmitted.
  • the light of the board is softer overall.
  • the background color of the display screen set on the light box is white or light color
  • the light emitted by the light source is partially reflected back to the side of the reflecting plate through the white film or the light color film of the display screen, and then formed.
  • the secondary reflection illuminates the screen, and the round-trip multiple reflection, by the diffraction effect of the light, can uniformly soften the light emitted by the light source; however, when the background of the display set on the light box is black or deep In the color system, the black film or dark film of the display will absorb the light from the light source, and will not reflect the light back to the side of the reflector, which reduces the chance of secondary reflection and reduces the chance of secondary reflection.
  • the crochet effect achieved by the secondary reflection will produce a bright strip on the display, which affects the display effect of the light box.
  • the light strip can only be weakened by increasing the thickness of the light box and extending the optical path, but this will undoubtedly increase. Manufacturing costs and affecting aesthetics.
  • the front cover is set as a translucent front cover, the light emitted by the light source through the secondary reflection formed by the translucent front cover is firstly softened inside the box, which is equivalent to formation.
  • a light box that emits even light, when the light from the light box reaches the black film of the display or When the dark film is already light after the smoothing process, it avoids the bright strip on the display screen, which can greatly reduce the thickness of the light box, and the overall brightness is increased due to the shortening of the optical path, or the brightness is not In the case of change, power consumption can be reduced.
  • the invention adopts a box structure formed by a sealed accommodating space, so that the light source is isolated from the outside during use, and the surface of the light source is directly prevented from directly adsorbing external dust, even if it is electrostatically generated by the light source, and adsorbed outside the transparent front cover after long-term use. It is dusty and it is easy to clean the dust outside the flat transparent front cover.
  • the present invention can be composed of a combination of a plurality of reflector modules to form an integral reflector plate of the light box, so that a single reflector module can be loaded or unloaded by one person, and the whole is convenient. Installation or commissioning of the light box reflection system. This is even more obvious for subway light boxes. For safety reasons, the light box used for the subway is not allowed to open the front cover. The light box reflector can only be installed and maintained by the bottom cover. In the prior art, if one of the light source sources is damaged, the maintenance personnel need to have the entire reflector removed for maintenance due to the narrow operating space of the bottom cover light box. With the present invention, the module in which the damaged light source is located can be taken out.
  • the groove structure of the reflecting plate 101 may be a sawtooth wave or a forward triangular wave type having a space, or may be a trapezoidal waveform.
  • the groove structure of the trapezoidal waveform is not only a flat bottom, but also a light source can be conveniently installed.
  • the adjacent groove sides of the adjacent grooves have a certain distance and form a plane. If the adjacent IHJ slots are closely connected, the angle formed by the sides of the adjacent slots is likely to form a bright line at the relative position of the display screen, which affects the display effect of the screen; and the two sides of the adjacent two grooves are spaced apart.
  • a distance, forming a plane because the plane does not cause the light emitted by the light source to form a convergence, avoiding the appearance of bright lines.
  • the formed plane also increases the strength of the reflector. When it is in contact with the transparent front cover, it can better fit the transparent front cover and improve the tightness of the whole box.
  • the angle between the bottom edge and the two sides of the trapezoidal wave is preferably greater than or equal to the illumination angle of the light source, that is, the side of the trapezoidal wave is outside the effective illumination angle of the light source, and the illumination angle of the light source is the light scattering angle of the light source, for example, when When the illumination angle of the light source is 40 degrees - 120 degrees, if the angle between the bottom side and the side is less than 120 degrees, the direct light of the light source is blocked. Therefore, preferably, the bottom side and the two sides of the trapezoidal wave The angle should be no less than 120 degrees.
  • the trapezoidal wave side of the reflector not only does not block the direct light of the light source, but also reflects back from the direction of the picture display panel. The light is reflected back to the picture display direction.
  • the distance between the side of the trapezoidal wave and the display direction of the screen is gradually shortened, and just the light reflected back from the screen display direction is gradually weakened from the bottom of the trapezoidal wave to the two sides.
  • the portion of the side that is closest to the display direction of the picture is also the weakest part of the light reflected back from the direction of the picture display, so that the weakest light can be reflected back to the display direction of the picture with the shortest optical path.
  • the gradual strong light can be reflected back to the display direction by the progressive optical path, achieving uniformity of the overall light.
  • the height of the module device is preferably matched with the height of the light box.
  • the height can be set according to the actual situation. For example, if the height is smaller than the height of the light box, it can be installed in the light box. .
  • the side surface of the groove of the reflector may have a plurality of ribs to increase the light-emitting effect on the secondary reflected light, and the ribs may be parallel to the edge of the groove and stepped. Distributed on the side of the groove.
  • the step shape of the reflecting plate can be extended according to the size of the reflecting plate and the number of the light source points provided, wherein the stepped reflecting plate has a stepped plane, and the light reflected back from the transparent front cover is retroreflected with the shortest optical path.
  • the stepped portion is not formed as a convex surface but is still a beveled edge of the groove, then the light will be obliquely reflected back toward the transparent front cover with a large optical path, and it is because of the formation
  • the step plane can make the angle of the retroreflected light as positive as possible to the transparent front cover; at the same time, the farther away from the light source, the weaker the light intensity, and the steeper the light intensity due to the slope of the trough, the ladder
  • the convex plane can receive light earlier and return light with a shorter optical path, thus further creating a hooking effect.
  • the stepped convex plane is only for controlling the area or height of the light receiving surface, and the area and height of the light receiving surface may be different depending on the actual situation, and the stepped shape is only a preferred embodiment.

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  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
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Abstract

一种用于灯箱的模组型光源盒装置，其包括盒体（10），盒体（10）包括透明前盖板（11）和反射板，前盖板（11）和反射板相对设置形成用于容纳光源的容纳空间，前盖板（11）上具有至少一个与光源位置相对的遮光部（12）。该模组型光源盒装置使灯箱整体厚度减少，并使光线更加均匀。

Description

一种用于灯箱的模组型光源盒装置 技术领域
本发明涉及灯箱技术领域。
背景技术
现有的灯箱， 作为画面展示的设备， 经常存在亮度不佳或不均匀的问题， 这一方面是与光源系统的反射器结构设计有关，另一方面也与灯箱内积累的灰 尘有关。由于灯箱光源在使用中产生的静电，使光源的表面吸附了大量的灰尘， 对灯箱的亮度造成影响， 而且在光源表面上吸附的灰尘不容易清理。
另外，现有的灯箱反射器板多为一个很大的整体板材结构， 由于体积和重 量都很大，造成在安装操作上非常不方便， 尤其对于釆用底开盖或侧开盖式灯 箱结构时， 由于灯箱前盖无法打开， 操作空间更为狭小， 当遇到需要对灯箱及 光源结构进行维护或更换的时候，则不得不将整个反射器板拆卸下来再进行操 作。 同时现有的灯箱也存在着厚度过大， 反光板反射光线不均勾， 导致灯箱展 示效果不理想的问题。 因此， 当前需要一种新的灯箱结构设计来解决上述问题。
发明内容
本发明所要解决的技术问题在于提供一种用于灯箱的模组型光源盒装置， 以克服现有灯箱厚度过大， 亮度不佳或不均匀的问题， 以及反射器安装维护不 便的问题。
为解决上述技术问题，本发明提供一种用于灯箱的模组型光源盒装置， 包 括一盒体， 所述盒体包括一透明前盖板及一反射板， 所述前盖板与反射板相对 设置形成一用于容纳光源的容纳空间，所述前盖板上具有至少一个与所述光源 位置相对的遮光部。
应用本发明， 通过密闭的盒体容纳空间， 使光源在使用中与外界隔离， 避 免了因吸附的灰尘对灯箱亮度与均匀度造成的影响； 同时，使用本发明提供的 模组型光源盒装置，可以将整个灯箱的反射板分解为多个模组来拼装，单个模 组不仅重量轻， 体积小， 而且容纳于一个模组盒体内， 即使一个人也可以很轻 松的完成安装或维护工作，特别是对于底开盖或侧开盖式灯箱， 不需要很大的 操作空间就可以很方便的从开盖处对模组进行装入与卸出的操作，同时本发明 的结构也使得灯箱的整体厚度得以减小， 整体光线更加均匀。 附图说明
图 1为根据本发明实施例所述的模组型光源盒装置的立体示意图。
图 2为图 1的正视图。
图 3为根据本发明另一实施例所述的模组型光源盒立体示意图。
图 4为根据本发明实施例所述的灯箱反射器模组装置的分解示意图。
图 5为图 4的局部放大图。
图 6为根据本发明实施例所述的封边结构局部放大示意图。
图 7为根据本发明实施例所述的安装条结构局部放大示意图。 具体实施方式
下面参照附图对本发明做进一步的说明。
如图 1所示，本发明的实施例提供一种用于灯箱的模组型光源盒装置， 包 括一盒体 10, 所述盒体 10包括一透明前盖板 11及一反射板， 所述前盖板 11 与反射板相对设置形成一用于容纳光源的容纳空间， 所述前盖板 11上具有至 少一个与所述光源位置相对的遮光部 12。
将这些光源盒并排紧密排列在灯箱框架内，就可以组成完整的灯箱光源系 统。现有的灯箱除了灯箱框架和光源系统外， 一般还需要在展示画面后设置一 整块柔光板， 使光源发出的强弱不同的光得到均匀柔化处理后再照射到画面 上。 而本发明由于使用了光源盒结构， 其透明前盖板就可以使用柔光板材质， 起到将光源发出的光均勾柔化的作用，相当于整个光源系统发出的光线就已经 是经过均匀柔化处理后的光线， 因此不再需要设置整块柔光板， 节省了造价。
所述透明前盖板 11可以由全透明或半透明材质形成，所述遮光部 12可以 是由不透明或半透明材质形成于所述前盖板上的遮光层结构，例如通过丝网印 刷等方式附着于前盖板上。
由图 2可知， 对于 LED灯箱来说， 遮光部 12的位置正对着 LED光源， 避免了 LED正向的直射光过强的照射向展示画面，从而使整体光线更加均匀。
在现有的灯箱中，如果展示画面距离光源过近， 则会由于距离光源最近的 区域的光线过强而造成其他区域的暗区，形成整体画面的光线不勾，甚至可以 在画面中看到光源的亮点， 因此， 不得不将展示画面与光源的距离拉远， 但这 样就造成了灯箱的整体厚度加大， 不仅使得制造成本增加， 而且浪费空间。
根据本发明的实施例 ,通过遮光部将这部分强光遮挡住，或过滤掉一部分， 使之与其他区域的光线强度基本一致，因此避免了当展示画面距离光源较近时 的画面亮暗不匀的问题。 而遮光部的面积可以根据光强、 画面与光源的距离以 及光源的形状而具体设计。
图 3所示， 为根据本发明另一实施例所述的模组型光源盒立体示意图， 包 括一盒体 20, 所述盒体 20包括一透明前盖板 21及一反射板 22, 所述前盖板 21与反射板 22相对设置形成一用于容纳光源的容纳空间， 所述前盖板 21上 具有多个与所述光源位置相对的遮光部 23。
图 3所示的光源盒中的光源是灯管， 所述遮光部 23呈多个与灯管平行的 遮光条形状。
图 3中的反射板形状呈从灯管位置 24向两侧波浪形或折线阶梯形对称展 开， 此外， 也可以是呈凹弧线型等其他形状。
遮光条 23可以是连续的一条遮光线； 或者是由多个断续的遮光点组成， 而遮光点之间的缝隙可以透过光源的光线， 不至于将强光部分的光线全部遮 挡， 以免造成黑线。
具体来说， 所述遮光部可以包括两个与灯管平行的遮光条， 所述两个遮光 条之间的间隙正对灯管， 且所述间隙的直径小于灯管的直径。 这样， 既可以通 过间隙透过一部分最强光，但这部分强光又不至于透过过多， 可通过间隙的宽 度来对透过的强光进行调整。
此外， 所述遮光部可以包括多个与灯管平行的遮光条， 例如图 3所示的六 根， 所述多个遮光条可以从灯管位置向两侧对称分布。
对于 LED灯箱来说， 所述光源则可以包括多个 LED, 所述遮光部为与所 述 LED的位置相对的遮光点。
本发明所述遮光点可以是圓形或多边形或网形结构；也可以是呈中空的圓 形 （环形）或多边形结构。
所述遮光点的中空部正对光源 ,则可以起到如上述所述对透过的强光光通 量进行控制的作用， 例如， 可以控制所述中空部的面积小于遮光部的面积的 50%, 以达到距离与亮度均匀之间的平衡。
通过具体试验获知， 如果同样达到亮度均勾的效果， 假设无遮光部时， 前 盖板与展示画面的距离为 dl ; 使用实心遮光部时， 前盖板与展示画面的距离 为 d2; 使用环形遮光部时， 前盖板与展示画面的距离为 d3; 则有 d3<d2<dl 的关系。这是因为当不使用遮光部时，距离过近会使光源容易在画面上形成亮 点； 而实心遮光部容易在距离过近时在光源位置形成暗点； 而环形遮光部可以 在这个较近的距离上取得亮度的平衡。
如图 4所示， 为根据本发明另一实施例所述的反射器模组 (光源盒体 )的 分解示意图， 包括反射板 101、 上侧板 102、 下侧板 103、 左封边 104、 右封边 105 , 及透明前盖板 106; 所述前盖板 106与反射板 101相对设置， 且通过所 述上下侧板 102、 104及左右封边 104、 105围合形成一密闭的容纳空间， 用于 密闭容纳光源， 所述反射板 101上具有多个光源安装孔。 光源可以是多样的， 例如灯泡、 灯管或 LED发光体等。
其中， 所述反射板的形状可以是多样的， 例如可以是形成至少一个凹槽， 如图 5所示， 反射板 101具有两个凹槽， 而所述光源安装孔 1011则可以位于 所述凹槽的底部。 安装人员可以通过该安装孔 1011将光源设置于容纳空间内 的反射板上， 而且， 所需要的电线或电路板等电路配件可以透过安装孔装设于 反射板后面。 所述反射板可以利用底边中部形成的一个外翻边 1012与上下侧 板通过螺钉连接。 当然，反射板并不一定必须通过该外翻边设计与上下侧板围 合连接， 实际上， 如果左右封边与反射板是一体成型的， 而左右封边与上下侧 板的连接就可以起到围合连接反射板的作用， 而外翻边 1012的连接则进一步 起到了加强连接强度的作用。
左右封边的主要作用是用来固定前盖板， 同时在侧面起到密封作用。封边 的形状可以是平板状或角钢形状（形成内翻边形状）等， 都是可以的， 特别是 为了扣合前盖板， 一般都会形成一个内翻边来扣压前盖板。 但无论何种形状， 由于封边具有一定的厚度和宽度， 当其位于光路上时，对光源光线会造成一定 的遮挡， 形成弱光区； 而且由于封边位于模组装置的边沿， 当在灯箱内组合并 排连接使用时，弱光区得不到补光且范围变大， 因此在封边位置就容易形成暗 区或黑道。
根据本发明的一个实施例，可以将左右封边高于反射板左右侧边的部分由 透明材质形成， 当然， 也可以将左右封边全部由透明材质制成， 显然也属于本 发明的保护范围。 由于透明材质对光线造成的损耗较小， 因此， 可以避免暗区 的形成。而左右封边高于反射板左右侧边的部分可以与前盖板一体成型或分体 固定， 本发明对此不做限制。
而根据本发明的另一实施例， 通过左右封边上沿的内翻边与前盖板的接 合，可以固定住前盖板。前盖板可以通过粘接的方式固定在内翻边的上方或下 方； 也可以通过压合的方式将前盖板扣在内翻边的下方， 使前盖板得到固定。 而在所述内翻边上具有多个镂空部，通过镂空部的设计， 可以允许更多的光线 通过， 也减少了对光线的遮挡。
镂空部的形状可以是多样的， 例如椭圓形、 方形等， 或者是呈锯齿波或方 波状的缺口等形态， 只要是能尽量少的阻挡光线同时还可以固定住前盖板即 可。
而所述内翻边镂空后， 质地上容易变软， 对前盖板的支撑力可能不足， 这 时， 根据本发明的实施例， 还可以在内翻边外沿进一步形成一立边， 如图 6 所示， 立边 10511使得整个内翻边 1051的强度得到了增强， 从而也使右封边 105的强度得到增强。
在图 6中还可以看出， 右封边 105与上下侧板之间可以通过插接部 1052 插接围合。 插接结构不仅牢固， 而且相互之间起到了位置校正的作用。
此外， 本发明的装置还可以进一步包括至少一个光源安装条 106, 如图 4 及图 5所示， 所述安装条设置于反射板后方并与所述上下侧板相连接，且安装 条上具有多个光源安装部 1061 , 位置与所述反射板上的光源安装孔 1011相对 应。 而为了加强安装条的强度， 还可以增加一个支撑件 107 , 位于安装条 106 的下方， 并与封边接合固定， 从中部支撑住安装条， 以免安装条塌陷， 同时也 对整个反射板的强度起到了增强的作用。
如图 7所示实施例， 所述安装条 106可以为槽型， 槽边 1062与所述反射 板相贴合， 槽口内设置有多个光源安装片 1061 , 所述光源安装部位于安装片 上。 而槽口内底部还可以容纳从安装片下引出的光源电路导线等，在槽口内的 封闭空间内走线， 非常安全、 方便。
通过安装条，可以事先将光源安装固定后再整体安装于模组装置中，就像 安装一个灯管一样方便， 提高了现场组装的效率； 而且， 安装条在下方支撑住 了反射板， 加强了整体结构的稳定性； 另一方面， 由于光源安装条承载并固定 了光源， 因此简化了反射板中的安装部位的结构设计。
本发明所述的透明材质， 是指可以透过光的材质， 例如玻璃、 PC板、 透 光板、 柔光板、 磨砂玻璃等全透明或半透明材质。
如果釆用全透明前盖板，则可以便于将光源发出的光线尽可能多的一次性 用半透明前盖板（如柔光板、 奶白板等）时， 则可以将光源发出的光线通过半 透明前盖而将部分光线反射回反光板， 再二次反射出去， 如此， 则相当于通过 半透明前盖将光源发出的光线先进行均匀处理后再照射向画面展示方向，使得 透过半透明前盖板的光线整体上更加柔和。
举例来说， 当设置在灯箱上的展示画面的底色为白色或浅色系时， 光源发 出的光线通过该展示画面的白膜或浅色膜而部分的被反射回反射板侧，再形成 二次反射照射向画面， 通过这种往返多次反射， 利用光的衍射效应， 可以将光 源发出的光线进行均匀柔化处理； 但是， 当设置在灯箱上的展示画面的底色为 黑色或深色系时，该展示画面的黑膜或深色膜就会吸收光源发出的光线， 而不 会或很少将光线反射回反射板侧，这就减少了二次反射的机会，也减小了经由 二次反射所达成的勾光效果，这就会在展示画面上产生亮条， 影响了灯箱的展 示效果， 只能通过增加灯箱的厚度， 延长光程来减弱亮条， 但这无疑会增加制 造成本， 并影响美观。 对于这种情况，如果将前盖板设置为半透明前盖，就会通过该半透明前盖 形成的二次反射将光源发出的光线首先在盒子内部即进行均勾柔化处理，相当 于形成了一个发出均匀光线的光盒,当光盒发出的光线到达展示画面的黑膜或 深色膜时已经是匀光处理后的光线，避免了在展示画面上产生亮条， 这样就可 以极大的减小灯箱的厚度， 由于光程缩短， 也增加了整体亮度， 或在亮度不变 的情况下可以减少功耗。
本发明通过密闭的容纳空间形成的盒体结构， 使光源在使用中与外界隔 离， 避免了光源的表面直接吸附外界的灰尘， 即使由于光源产生的静电作用， 长期使用后在透明前盖外吸附有灰尘，也很容易将平整的透明前盖体外的灰尘 清理干净。
而且本发明可由多个反射器模组的组合来共同组成灯箱的整体反射器板， 因此， 只需一个人就可以对单个反射器模组进行装入或拆出的操作，很方便的 完成整体灯箱反射系统的安装或调试。 这对于地铁灯箱来说， 优势更加明显。 出于安全性的考虑，用于地铁的灯箱是不允许前开盖的， 只能是通过底部开盖 的方式对灯箱反射器进行安装维护。在现有技术情况下，如果灯箱光源中有一 个光源点发生损坏， 由于底开盖灯箱的操作空间狭小， 维修人员需要不得不将 整个反射板卸出后进行维修。 而利用本发明， 可以将该损坏的光源所在的模组 取出即可。
根据本发明的一个实施例，反射板 101的凹槽结构， 可以呈锯齿波或具有 间隔的正向三角波型等， 还可以是梯形波形。 梯形波形的凹槽结构， 不仅槽底 为平面， 可以方便安装光源， 而且， 相邻凹槽的相邻槽体侧面具有一定间距， 并形成一个平面。如果是相邻 IHJ槽紧密相接， 则相邻槽体侧面形成的夹角容易 在展示画面的相对位置形成亮线，影响了画面的展示效果； 而将相邻两凹槽的 两侧边间隔一段距离，形成一平面， 则由于该平面处不会使光源发出的光线形 成会聚， 避免了亮线的出现。 同时， 形成的平面也增加了反射板的自身强度， 当与透明前盖抵触支撑时，可以更好的与透明前盖贴合，提高盒体整体的紧密 性。
梯形波的底边与两侧边的夹角优选为大于或等于光源的发光角度，即梯形 波的侧边处于光源的有效发光角度之外，光源的发光角度为光源的光线散射角 度， 例如当光源的发光角度为 40度 - 120度时， 如果所述底边与侧边的夹角 小于 120度， 则会阻挡光源的直射光线， 因此， 优选的， 梯形波的底边与两侧 边的夹角应不小于 120度。 这样， 由于灯箱是二次反射设备， 反射板的梯形波 侧边不仅不会阻挡光源的直射光线，而且可以将从画面展示板的方向反射回来 的光再次反射回画面展示方向。
沿梯形波底边至顶边方向 ,所述梯形波侧边与画面展示方向的距离是逐渐 缩短的 , 而恰好 ,从画面展示方向反射回的光线也是从梯形波底部向两侧渐弱 的， 这样， 我们可以看到， 所述侧边距离画面展示方向最近的部位也是从画面 展示方向反射回的光线最弱的部分，如此可以最短的光程将最弱的光线再次反 射回画面展示方向。 由此， 沿侧边以此类推， 可以将渐强的光线以渐长的光程 反射回画面展示方向， 实现了整体光线的均匀。
所述模组装置的高度优选为与所述灯箱的高度相匹配，当然可以根据实际 情况对高度进行相应设置，譬如高度小于灯箱的高度，可以安装在灯箱内即可， 本新型对此不作限定。
进一步的， 所述反射板的凹槽的侧面可以具有多条凸棱， 以增加对二次反 射光线的勾光效果，这些凸棱可以是与所述凹槽槽口边沿平行，且呈阶梯状分 布于所述凹槽的侧面上。反射板的阶梯形可以根据反射板的尺寸和设置的光源 点的数量， 进行延伸， 其中阶梯形反射板中具有的阶梯平面， 将透明前盖方面 反射回的光线以尽量短的光程回射向透明前盖，如果在所述阶梯部不是形成凸 起， 而仍是槽边的斜面， 那么， 光线将会以较大的光程斜向回射向透明前盖， 而正是因为形成了阶梯平面， 则可以将回射光线的角度尽量正向于透明前盖； 同时， 距离光源越远的区域， 其光强越弱， 而由于槽体的坡度， 光强越弱的区 域，其阶梯状的凸起平面可以更早的接收到光线并以更短的光程回射光线， 因 此， 进一步起到了勾光效果。
阶梯状的凸起平面仅是为了控制受光面的面积或高度，而受光面的面积和 高度都是可以根据实地情况而有不同， 阶梯形仅为较佳实施例。

Claims

权 利 要 求 书
1、 一种用于灯箱的模组型光源盒装置， 其特征在于， 包括一盒体， 所述 盒体包括一透明前盖板及一反射板，所述前盖板与反射板相对设置形成一用于 容纳光源的容纳空间，所述前盖板上具有至少一个与所述光源位置相对的遮光 部。
2、 如权利要求 1所述的装置， 其特征在于， 所述遮光部为由不透明或半 透明材质形成于所述前盖板上的遮光层结构。
3、 如权利要求 1所述的装置， 其特征在于， 所述光源为灯管， 所述遮光 部为至少一个与灯管平行的遮光条形状。
4、 如权利要求 3所述的装置， 其特征在于， 所述遮光条由多个断续的遮 光点组成。
5、 如权利要求 3所述的装置， 其特征在于， 所述遮光部包括至少两个与 灯管平行的遮光条， 所述两个遮光条之间的间隙正对灯管，且所述间隙的直径 小于灯管的直径。
6、 如权利要求 3所述的装置， 其特征在于， 所述遮光部包括多个与灯管 平行的遮光条， 所述多个遮光条从灯管向两侧对称分布。
7、 如权利要求 1所述的装置， 其特征在于， 所述光源包括多个 LED, 所 述遮光部为与所述 LED的位置相对的遮光点。
8、 如权利要求 4或 7所述的装置， 其特征在于， 所述遮光点为圓形或多 边形或网形结构。
9、 如权利要求 4或 7所述的装置， 其特征在于， 所述遮光点为中空的圓 形或多边形结构。
10、 如权利要求 9所述的装置， 其特征在于， 所述遮光点的中空部正对光 源。
11、 如权利要求 9所述的装置， 其特征在于， 所述中空部的面积小于遮光 部的面积的 50%。
PCT/CN2012/077566 2011-10-18 2012-06-26 一种用于灯箱的模组型光源盒装置 WO2013056567A1 (zh)

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