WO2015165096A1 - Strip-shaped lens for use in led lamp and wide-angle led lamp - Google Patents

Strip-shaped lens for use in led lamp and wide-angle led lamp Download PDF

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Publication number
WO2015165096A1
WO2015165096A1 PCT/CN2014/076648 CN2014076648W WO2015165096A1 WO 2015165096 A1 WO2015165096 A1 WO 2015165096A1 CN 2014076648 W CN2014076648 W CN 2014076648W WO 2015165096 A1 WO2015165096 A1 WO 2015165096A1
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WO
WIPO (PCT)
Prior art keywords
lens
lamp
light
fluorescent lamp
led fluorescent
Prior art date
Application number
PCT/CN2014/076648
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French (fr)
Chinese (zh)
Inventor
李志江
洪余周
张生微
王文杰
Original Assignee
广东恒润光电有限公司
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Application filed by 广东恒润光电有限公司 filed Critical 广东恒润光电有限公司
Priority to PCT/CN2014/076648 priority Critical patent/WO2015165096A1/en
Publication of WO2015165096A1 publication Critical patent/WO2015165096A1/en

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    • 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

Definitions

  • the invention relates to the field of lighting equipment, in particular to a lens for an LED fluorescent lamp and a large angle LED fluorescent lamp.
  • Fluorescent lamps have many advantages over traditional fluorescent lamps, such as high luminous efficiency, high lamp efficiency, high power efficiency, long life, environmental protection, no pollution, vibration resistance, and impact resistance. Therefore, LED It is imperative that fluorescent lamps replace traditional fluorescent lamps. Among the existing fluorescent lamps, there are also some LEDs that are light sources.
  • the Chinese patent CN 201487650U published on May 26, 2010 is a kind of typical structure.
  • LED fluorescent lamp including the lamp tube mounted on the lamp holder, the PCB board in the lamp tube and the LED lamp thereon, the lamp tube is a transparent PC cover with a semicircular cross section and an opaque mounting plate with a semicircular cross section. Composition, transparent PC The cover and the opaque mounting plate are fitted into a circular tube, and the opaque mounting plate is above the transparent PC cover, and the PCB board is installed at a joint between the opaque mounting plate and the transparent PC cover, and the fluorescent lamp has no Glare The heat dissipation effect is good, and the illumination angle is as large as 120°, so the light is easily diffused.
  • the LED fluorescent lamp mainly functions as a backlight in the light box, and illuminates the advertising paper placed at the front of the light box to display.
  • the LED fluorescent lamp With the current market's pursuit of lighter thickness of the light box, it means that the distance of the light emitted from the backlight in the light box is compressed, so that even the LED fluorescent lamp that can reach the illumination angle of 120 degrees as disclosed in the above publication should be emitted. Insufficient distance and uneven density will result in uneven illumination.
  • the simplest solution is to increase the density of LED fluorescent lamps in existing applications, but it will undoubtedly increase the cost.
  • the edge-emitting structure of the small liquid crystal display can also be adopted.
  • a structure is costly, and the uniformity of illumination can only be applied to a small-area light box.
  • Another solution is to use a large LCD backlighting technology, which is filled with LEDs in the light box.
  • this cost is undoubtedly very high and completely unnecessary for paper advertising. Therefore, there is an urgent need in the industry for an economical structural solution to address the need for LED fluorescent lamp applications that extend the range of illumination over a small distance.
  • An object of the present invention is to overcome the above drawbacks and to provide a lens for an LED fluorescent lamp and a large angle LED fluorescent lamp having a large illumination angle.
  • a lens for an LED fluorescent lamp comprising a main body, an upper surface of the main body is convexly formed with an exit surface, a concave surface is provided at a middle portion of the exit surface, and a concave surface is formed in the lower surface of the main body corresponding to the concave surface.
  • a cavity, the inner wall of the incident cavity is an incident surface;
  • the longitudinal section of the incident cavity is tapered; the lowest point of the concave surface of the main body exit surface is corresponding to the apex of the tapered incident cavity;
  • the lower surface of the main body is provided with a scattering surface around the incident cavity; the projection of the exit surface of the upper surface of the main body on the lower surface and the scattering surface are provided with an overlapping area;
  • the lower surface of the main body is provided with a plane around the incident cavity, and a mesh line is arranged on the plane to form the scattering surface;
  • the body has a cylindrical shape
  • the edge of the cylindrical body is provided with an extension, and the lower surface of the extension is provided with a fixing leg.
  • the present invention also relates to a high-angle LED fluorescent lamp comprising a light panel, an LED lamp and the lens according to any one of claims 1-6; the lamp panel is provided with a plurality of LED lamps spaced apart, the lens one One corresponding to the LED light;
  • the above structure further includes a lamp body, a dust cover, a lamp cap and a driving module; the driving module is disposed in the lamp body, the lamp plate is disposed on the outer surface of the lamp body, and the outer cover has a dust cover;
  • the dust cover is made of a transparent material
  • the LED lamps at both ends of the light bar are disposed at a density greater than the middle portion.
  • the invention has the beneficial effects that the lens which is equipped with a special LED fluorescent lamp can make the light emitted from the light source placed in the incident cavity of the lens pass through the convex surface of the exit surface to easily obtain a larger match of more than 120 degrees.
  • the light angle is usually achieved by using the patented scheme to achieve a light distribution angle of 150 degrees.
  • the concave surface in the middle of the exit surface can refract light concentrated in the central portion of the light source to the periphery, thereby further enhancing the illumination angle and the peripheral light intensity of the lens after the light distribution to the light source.
  • FIG. 1 is a schematic structural view of a specific embodiment of a lens of the present invention.
  • Figure 2 is a cross-sectional view showing the structure of a lens of the present invention.
  • Figure 3 is a top plan view showing a structure of a lens of the present invention.
  • FIG. 4 is a perspective view showing a rear view structure of a specific embodiment of the lens of the present invention.
  • Figure 5 is a perspective view showing the exploded structure of a specific embodiment of the LED fluorescent lamp of the present invention.
  • Figure 6 is a perspective view showing the exploded structure of another embodiment of the LED fluorescent lamp of the present invention.
  • Figure 7 is a cross-sectional view showing the structure of an LED fluorescent lamp of the present invention.
  • Figure 8 is a cross-sectional view showing the structure of an LED fluorescent lamp of the present invention.
  • 11 and 12 are illuminance test charts of the LED fluorescent lamp of the present invention.
  • the present invention relates to a lens for an LED fluorescent lamp, comprising a main body, an upper surface of the main body is convexly formed with an exit surface 21, a concave surface 23 is disposed at a middle portion of the exit surface 21, and a lower surface of the main body corresponds to a concave surface 23
  • the concave cavity is formed with an incident cavity 24, and the inner wall of the incident cavity 24 is an incident surface 22. Therefore, when the lens of the patent is used, only the light source is placed in the incident cavity 24, and the light emitted by the light source is emitted from the convex exit surface 21 through the incident surface 22, and a large light distribution angle greater than 120 degrees can be easily obtained.
  • This patented scheme is usually used to achieve a light distribution angle of 150 degrees.
  • the concave surface 23 in the middle of the exit surface can refract light concentrated in the central portion of the light source to the periphery, thereby further enhancing the light-emitting angle of the lens after light distribution to the light source and the intensity of the peripheral light.
  • the spot is uniformly uniform within a range of 250 mm at a pitch of 70 mm, and the light transmittance is 80.0%.
  • the above-mentioned incident cavity 24 is tapered in a longitudinal section, and the lowest point of the concave surface 23 of the main body exit surface 21 is disposed corresponding to the apex of the tapered incident cavity 24.
  • the taper here can adopt the shape of a pyramid, a cone or an approximate pyramid or a cone according to actual needs, and is mainly characterized in that the incident surface 22 of the incident cavity 24 finally converges or substantially converges on a vertex, which can be placed in the incident cavity.
  • the light emitted from the light source in 24 can be better distributed through the incident surface 22 and then distributed horizontally.
  • the cone apex and the concave surface 23 of the exit surface are arranged to better distribute the light in the middle of the light source to the periphery. To supplement the illumination angle and the intensity of the peripheral light.
  • a scattering surface 27 is further disposed on the lower surface of the main body around the incident cavity 24, and a projection of the exit surface 21 of the upper surface of the main body on the lower surface is overlapped with the scattering surface, that is, the exit surface 21 is covered. Scattering the upper part.
  • the lower surface of the main body is provided with a plane around the incident cavity, and a mesh line is arranged on the plane to form the scattering surface 27.
  • a mesh line is arranged on the plane to form the scattering surface 27.
  • the mesh pattern may be in the form of a square, a diamond or a dot as needed. Among them, the diamond-shaped grid pattern has the best effect. In theory, stripe-like lines can be used instead of grid-like lines to achieve scattering effects.
  • the body has a cylindrical shape. That is, the exit surface 21 of the corresponding body is also circular.
  • the advantage of the circular exit surface is that the final light distribution is rounded, that is, the light distribution direction is four sides.
  • the cylindrical body edge is provided with an extension 26, and the lower surface of the extension 26 is provided with a fixing leg 25.
  • the entire lens can be placed on the desired light source through the fixing legs 25 without unduly affecting the light distribution of the main body portion.
  • the present invention also relates to a high angle LED fluorescent lamp comprising a light panel 3, an LED lamp 4 and a lens 2 of the character described above.
  • the plurality of LED lamps 4 are arranged at intervals on the lamp board 3, and the lenses 2 are one-to-one correspondingly disposed on the LED lamps.
  • the exit angle of the LED lamp in the LED fluorescent lamp can be made larger, so that the high-angle LED fluorescent lamp can be used in the ultra-thin light box, and the original illumination requirement can be achieved without increasing the installation density.
  • the LED lamp 4 in the present embodiment is not limited to one LED chip, and may be an LED lamp 4 of a light-emitting group composed of a plurality of LED chips as needed.
  • the above-mentioned large-angle LED fluorescent lamp further includes a lamp body 5, a dust cover 1, a lamp cap 6, and a driving module 8.
  • the driving module 8 is disposed in the lamp body 5, and the lamp board 3 is disposed on the outer surface of the lamp body 5, and the outer cover is provided with the dust cover 1.
  • the lamp board 3 is fixed on the lamp body 5, and the outer cover is provided with a dust cover 1.
  • the dust cover 1 is mainly used for dust prevention. Since each lens 2 is small, if the external dust cover 1 is not provided, more parts on the light board 3 may cause troubles in later cleaning. .
  • the dust cover is made of a transparent material.
  • the outer cover of ordinary LED fluorescent lamp mostly needs to bear the function of light distribution or scattering.
  • the dust cover only serves to isolate, so the whole is made of transparent material, which is convenient for large angle light after internal light distribution. Exit.
  • the LED lamps 4 at both ends of the light bar 3 are disposed at a density greater than the middle portion.
  • the central LED lamp 4 has adjacent LED lamps 4 on the left and right sides, so the illumination is relatively uniform, and the LED lamps at both ends no longer have the LED lamps 4 on one side, so in the light bar 3 If the LED light 4 is set at a simple equidistance, it will inevitably lead to the problem that the light on both sides of the LED fluorescent lamp is dark and the overall illumination is uneven. For this reason, the present patent overcomes the above problems by increasing the density of the arrangement of the LED lamps 4 at both ends of the light bar 3.
  • a single-edge light-emitting high-angle LED fluorescent lamp made by using the patented technology has a lamp body 5 which is a nearly semi-circular strip-shaped aluminum material and is driven by a sleeve inside the lamp body 5.
  • the module 8 and the surface of the lamp body 5 are provided with a lamp board 3, and the lamp board 3 is provided with LED lamps 4 at intervals, and a lens 2 is disposed corresponding to each of the LED lamps 4.
  • a transparent dust cover 1 is also disposed outside the overall lamp board, and the lamp body 6 is disposed at both ends of the lamp body 5, and a protective cover 7 can be attached to the lamp cap 6 for protection according to requirements.
  • the card body 5 is provided with a card slot along the length direction, and the edge of the corresponding dust cover 1 is a card table, so that the dust cover 1 can be quickly connected with the lamp body 5 by the snapping manner.
  • a card edge may be disposed inside the dust cover 1, the height of the card edge 12 to the card table 11 and the light board 3 are disposed on the surface of the lamp body 5, and the upper surface thereof is attached to the lamp body 5
  • the height of the groove 51 is adapted so that the snap-on fixing of the lamp panel 3 is achieved while the dust cover 1 is snapped.
  • FIG. 6 and FIG. 8 show a double-angle LED fluorescent lamp made by using the patented technology.
  • the lamp body 5 is a strip-shaped aluminum material, and the driving module 8 is also worn inside the lamp body 5.
  • 5 has two surfaces, the best two surfaces are arranged opposite each other, so that a light board 3 is arranged on each surface, and the LED board 4 is arranged on the light board 3, and a lens 2 is arranged corresponding to each of the LED lights 4.
  • a transparent dust cover 1 is also disposed outside the entire lamp panel, and the lamp cap 6 is disposed at both ends of the lamp body 5.
  • the spot is uniform over 250mm, and the light transmittance is 80.0%.
  • the card body 5 is provided with a card slot along the length direction, and the edge of the corresponding dust cover 1 is a card table, so that the dust cover 1 can be quickly connected with the lamp body 5 by the snapping manner. .
  • the above description is only an embodiment of the present invention, and thus does not limit the scope of the patent of the present invention.
  • the number of light bars that can be disposed on one lamp body is not limited to the manner of the above two embodiments, and may be in multiple faces as needed.
  • a plurality of light strips are arranged to form an LED fluorescent lamp capable of uniformly emitting light in all directions, so that the equivalent structure or equivalent process transformation made by using the specification and the drawings of the present invention is directly or indirectly applied to other related technologies.
  • the fields are all included in the scope of patent protection of the present invention.

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

Abstract

A lens (2) for use in an LED lamp and a wide-angle LED lamp, which comprises the lens (2) for use in the LED lamp. The lens comprises a body. The upper surface of the body is outwardly protruded to form an exit surface (21). A concave surface (23) is provided at the middle of the exit surface. The lower surface of the body is recessed at a position corresponding to the concave surface to form an incidence cavity (24). The inner wall of the incidence cavity is an incidence surface (22). By equipping an LED bulb of the LED lamp with the lens, a light emitted by a light source arranged in the incidence cavity of the lens can easily acquire an increased light distribution angle greater than 120 degrees by passing through the incidence surface and being emitted from the protruding exit surface, where the light distribution angle usually reaches 150 degrees. Furthermore, the concave surface at the middle of the exit surface allows the light of the light source that originally concentrated at the middle to refract in all directions, thus enhancing the light emission angle and peripheral light intensity when the light source is provided with the lens for light distribution.

Description

用于LED日光灯的透镜及大角度LED日光灯Lens for LED fluorescent lamps and high-angle LED fluorescent lamps
技术领域 Technical field
本发明涉及照明设备领域，尤其是指一种用于LED日光灯的透镜及大角度LED日光灯。 The invention relates to the field of lighting equipment, in particular to a lens for an LED fluorescent lamp and a large angle LED fluorescent lamp.
背景技术 Background technique
LED 日光灯相对于传统的荧光灯具有很多优点，诸如发光效率高、灯具效率高、电源效率高、寿命长、环保无污染、耐振动、耐冲击等。因此，LED 日光灯取代传统荧光灯势在必行。现有日光灯中，也有一些 LED 为光源的产品， led Fluorescent lamps have many advantages over traditional fluorescent lamps, such as high luminous efficiency, high lamp efficiency, high power efficiency, long life, environmental protection, no pollution, vibration resistance, and impact resistance. Therefore, LED It is imperative that fluorescent lamps replace traditional fluorescent lamps. Among the existing fluorescent lamps, there are also some LEDs that are light sources.
如 2010 年 05 月 26 日公开的中国专利 CN 201487650U 就是一种典型结构的一种 LED 日光灯，包括安装在灯座上的灯管，灯管内的 PCB 板及其上的 LED 灯，灯管由截面呈半圆形的透明 PC罩和截面呈半圆形的不透光安装板构成，透明 PC 罩和不透光安装板嵌合安装成圆形管，不透光安装板处于透明 PC 罩的上方，PCB 板安装在不透光安装板与透明 PC 罩之间的连接处，上述日光灯具有不会产生眩光 , 散热效果好、发光角度较大可达120°因此出光易扩散。 For example, the Chinese patent CN 201487650U published on May 26, 2010 is a kind of typical structure. LED fluorescent lamp, including the lamp tube mounted on the lamp holder, the PCB board in the lamp tube and the LED lamp thereon, the lamp tube is a transparent PC cover with a semicircular cross section and an opaque mounting plate with a semicircular cross section. Composition, transparent PC The cover and the opaque mounting plate are fitted into a circular tube, and the opaque mounting plate is above the transparent PC cover, and the PCB board is installed at a joint between the opaque mounting plate and the transparent PC cover, and the fluorescent lamp has no Glare The heat dissipation effect is good, and the illumination angle is as large as 120°, so the light is easily diffused.
然而，在诸多LED日光灯应用领域中，灯箱、特别是广告灯箱的应用有其特殊性。与普通承担室内照明的LED日光灯应用环境不同，在灯箱中LED日光灯主要是起到一个背光源的作用，通过发光照亮放置在灯箱前部的广告纸而起到展示作用。而随着时下市场对灯箱的厚度追求越发的轻薄，这就意味着提供给灯箱内背光源出射光距离被压缩，导致即使如上述公开专利的能达到120度发光角度的LED日光灯也会应出射距离不足而按照原有设置密度会产生光照不均匀的问题。现有技术中解决上述问题有几种手段，最简单的方案就是增加现有应用的LED日光灯设置密度的问题，但无疑会增加成本。此外也可以采用小型液晶显示屏的边缘发光的结构，然而此种结构成本较高，而且其光照均匀度只能适合小面积的灯箱使用。再有一种方案就是采用大型液晶屏的背光照明技术，在灯箱内布满LED，然而这种成本无疑是十分高昂而且对于纸张广告而言完全不必要的。因此，业内亟需一种经济型的结构方案应对小距离内扩大光照范围的LED日光灯应用的需求。 However, in many LED fluorescent lamp applications, the application of light boxes, especially advertising light boxes, has its particularity. Unlike the LED fluorescent lamp application environment that normally undertakes indoor lighting, the LED fluorescent lamp mainly functions as a backlight in the light box, and illuminates the advertising paper placed at the front of the light box to display. With the current market's pursuit of lighter thickness of the light box, it means that the distance of the light emitted from the backlight in the light box is compressed, so that even the LED fluorescent lamp that can reach the illumination angle of 120 degrees as disclosed in the above publication should be emitted. Insufficient distance and uneven density will result in uneven illumination. There are several ways to solve the above problems in the prior art. The simplest solution is to increase the density of LED fluorescent lamps in existing applications, but it will undoubtedly increase the cost. In addition, the edge-emitting structure of the small liquid crystal display can also be adopted. However, such a structure is costly, and the uniformity of illumination can only be applied to a small-area light box. Another solution is to use a large LCD backlighting technology, which is filled with LEDs in the light box. However, this cost is undoubtedly very high and completely unnecessary for paper advertising. Therefore, there is an urgent need in the industry for an economical structural solution to address the need for LED fluorescent lamp applications that extend the range of illumination over a small distance.
发明内容 Summary of the invention
本发明的目的在于克服了上述缺陷，提供一种具备大发光角度的用于LED日光灯的透镜及大角度LED日光灯。 SUMMARY OF THE INVENTION An object of the present invention is to overcome the above drawbacks and to provide a lens for an LED fluorescent lamp and a large angle LED fluorescent lamp having a large illumination angle.
本发明的目的是这样实现的：一种用于LED日光灯的透镜，它包括主体，主体上表面外凸形成有出射面，出射面中部设有凹面，主体下表面对应凹面位置内凹形成有入射腔，入射腔内壁为入射面； The object of the present invention is achieved by a lens for an LED fluorescent lamp, comprising a main body, an upper surface of the main body is convexly formed with an exit surface, a concave surface is provided at a middle portion of the exit surface, and a concave surface is formed in the lower surface of the main body corresponding to the concave surface. a cavity, the inner wall of the incident cavity is an incident surface;
上述结构中，所述入射腔纵截面呈锥形；所述主体出射面的凹面最低点与锥形入射腔顶点对应设置； In the above structure, the longitudinal section of the incident cavity is tapered; the lowest point of the concave surface of the main body exit surface is corresponding to the apex of the tapered incident cavity;
上述结构中，所述主体下表面于入射腔四周设有散射面；所述主体上表面的出射面于下表面的投影与所述散射面设有重叠区； In the above structure, the lower surface of the main body is provided with a scattering surface around the incident cavity; the projection of the exit surface of the upper surface of the main body on the lower surface and the scattering surface are provided with an overlapping area;
上述结构中，所述主体下表面于入射腔四周设有平面，平面上设置有网状纹路构成所述散射面； In the above structure, the lower surface of the main body is provided with a plane around the incident cavity, and a mesh line is arranged on the plane to form the scattering surface;
上述结构中，所述主体呈圆柱形； In the above structure, the body has a cylindrical shape;
上述结构中，所述圆柱形主体边缘设有延伸部，所述延伸部下表面设置有固定脚。 In the above structure, the edge of the cylindrical body is provided with an extension, and the lower surface of the extension is provided with a fixing leg.
本发明还涉及一种大角度LED日光灯，它包括灯板、LED灯及如权利要求1-6任意一项所述的透镜；所述灯板上间隔设置有多个LED灯，所述透镜一一对应设置于LED灯上； The present invention also relates to a high-angle LED fluorescent lamp comprising a light panel, an LED lamp and the lens according to any one of claims 1-6; the lamp panel is provided with a plurality of LED lamps spaced apart, the lens one One corresponding to the LED light;
上述结构中，它还包括灯体、防尘罩、灯头及驱动模块；所述驱动模块设置于灯体中，所述灯板设置于灯体外表面，其外罩有防尘罩； The above structure further includes a lamp body, a dust cover, a lamp cap and a driving module; the driving module is disposed in the lamp body, the lamp plate is disposed on the outer surface of the lamp body, and the outer cover has a dust cover;
上述结构中，所述防尘罩由透明材料制成； In the above structure, the dust cover is made of a transparent material;
上述结构中，所述灯条两端的LED灯设置密度大于中部。 In the above structure, the LED lamps at both ends of the light bar are disposed at a density greater than the middle portion.
本发明的有益效果在于通过配备一种专用LED日光灯的透镜，从而使得在透镜的入射腔中放置的光源出射的光经过入射面由凸出的出射面出射可轻松获得大于120度的较大配光角度，通常采用本专利方案可使得配光角度达到150度。进一步的，在出射面中部的凹面可使得光源原本中部集中的光向四周折射，进而进一步加强透镜对光源配光后的发光角度以及***光线强度。 The invention has the beneficial effects that the lens which is equipped with a special LED fluorescent lamp can make the light emitted from the light source placed in the incident cavity of the lens pass through the convex surface of the exit surface to easily obtain a larger match of more than 120 degrees. The light angle is usually achieved by using the patented scheme to achieve a light distribution angle of 150 degrees. Further, the concave surface in the middle of the exit surface can refract light concentrated in the central portion of the light source to the periphery, thereby further enhancing the illumination angle and the peripheral light intensity of the lens after the light distribution to the light source.
附图说明 DRAWINGS
下面结合附图详述本发明的具体结构 The specific structure of the present invention is described in detail below with reference to the accompanying
图1为本发明透镜的一具体实施例结构示意图； 1 is a schematic structural view of a specific embodiment of a lens of the present invention;
图2为本发明透镜的一具体实施例结构剖视图； Figure 2 is a cross-sectional view showing the structure of a lens of the present invention;
图3为本发明透镜的一具体实施例结构俯视图； Figure 3 is a top plan view showing a structure of a lens of the present invention;
图4为本发明透镜的一具体实施例后视结构立体图； 4 is a perspective view showing a rear view structure of a specific embodiment of the lens of the present invention;
图5为本发明LED日光灯的一具体实施例立体结构***图； Figure 5 is a perspective view showing the exploded structure of a specific embodiment of the LED fluorescent lamp of the present invention;
图6为本发明LED日光灯的另一具体实施例立体结构***图； Figure 6 is a perspective view showing the exploded structure of another embodiment of the LED fluorescent lamp of the present invention;
图7为本发明LED日光灯的一具体实施例结构剖视图； Figure 7 is a cross-sectional view showing the structure of an LED fluorescent lamp of the present invention;
图8为本发明LED日光灯的一具体实施例结构剖视图； Figure 8 is a cross-sectional view showing the structure of an LED fluorescent lamp of the present invention;
图9、10为本发明透镜的照度测试图； 9 and 10 are illuminance test charts of the lens of the present invention;
图11、12 为本发明LED日光灯的照度测试图。 11 and 12 are illuminance test charts of the LED fluorescent lamp of the present invention.
1- 防尘罩；2-透镜；3-灯板；4-LED灯；5-灯体；6-灯头；7-保护盖；8-驱动模块；11-卡台；12-卡沿；21-出射面；22-入射面；23-凹面；24-入射腔；25-固定脚；26-延伸部；27-散射面；51-卡槽。 1- Dust cover; 2-lens; 3-light board; 4-LED lamp; 5-lamp body; 6-lamp head; 7-protective cover; 8-drive module; 11-card table; 12-card edge; 21-out Face; 22-incident surface; 23-concave surface; 24-incident cavity; 25-fixed foot; 26-extension; 27-scattering surface; 51-card slot.
具体实施方式 detailed description
为详细说明本发明的技术内容、构造特征、所实现目的及效果，以下结合实施方式并配合附图详予说明。 The detailed description of the technical contents, structural features, and the objects and effects of the present invention will be described in detail below with reference to the accompanying drawings.
请参阅图1-4，本发明涉及一种用于LED日光灯的透镜，它包括主体，主体上表面外凸形成有出射面21，出射面21中部设有凹面23，主体下表面对应凹面23位置内凹形成有入射腔24，入射腔24内壁为入射面22。由此，本专利透镜在使用时，只需把光源放置在入射腔24中，光源出射的光经过入射面22由凸出的出射面21出射可轻松获得大于120度的较大配光角度，通常采用本专利方案可使得配光角度达到150度。进一步的，在出射面中部的凹面23可使得光源原本中部集中的光向四周折射，进而进一步加强透镜对光源配光后的发光角度以及***光线强度。 1-4, the present invention relates to a lens for an LED fluorescent lamp, comprising a main body, an upper surface of the main body is convexly formed with an exit surface 21, a concave surface 23 is disposed at a middle portion of the exit surface 21, and a lower surface of the main body corresponds to a concave surface 23 The concave cavity is formed with an incident cavity 24, and the inner wall of the incident cavity 24 is an incident surface 22. Therefore, when the lens of the patent is used, only the light source is placed in the incident cavity 24, and the light emitted by the light source is emitted from the convex exit surface 21 through the incident surface 22, and a large light distribution angle greater than 120 degrees can be easily obtained. This patented scheme is usually used to achieve a light distribution angle of 150 degrees. Further, the concave surface 23 in the middle of the exit surface can refract light concentrated in the central portion of the light source to the periphery, thereby further enhancing the light-emitting angle of the lens after light distribution to the light source and the intensity of the peripheral light.
参见图9、10所示可见，采用本专利透镜后，配备在LED灯应用时，在70mm间距时，光斑在250mm范围内整体均匀，透光率80.0%。 As can be seen from Fig. 9 and Fig. 10, after using the lens of the patent, when the LED lamp is used, the spot is uniformly uniform within a range of 250 mm at a pitch of 70 mm, and the light transmittance is 80.0%.
作为一实施例，进一步的上述入射腔24纵截面呈锥形，而主体出射面21的凹面23最低点与锥形入射腔24顶点对应设置。此处的锥形，根据实际需要可采用棱锥、圆锥或者近似棱锥、圆锥的形状，其特点主要是入射腔24的入射面22最终汇聚或基本汇聚于一顶点，一来可使得放置于入射腔24内的光源出射光能更好的通过入射面22后往水平方向配光，二来锥形顶点与出射面凹面23对应设置则可更好的将光源中部较强的光进一步向周边配光，从而补充发光角度及***光线的强度。 As an embodiment, the above-mentioned incident cavity 24 is tapered in a longitudinal section, and the lowest point of the concave surface 23 of the main body exit surface 21 is disposed corresponding to the apex of the tapered incident cavity 24. The taper here can adopt the shape of a pyramid, a cone or an approximate pyramid or a cone according to actual needs, and is mainly characterized in that the incident surface 22 of the incident cavity 24 finally converges or substantially converges on a vertex, which can be placed in the incident cavity. The light emitted from the light source in 24 can be better distributed through the incident surface 22 and then distributed horizontally. Secondly, the cone apex and the concave surface 23 of the exit surface are arranged to better distribute the light in the middle of the light source to the periphery. To supplement the illumination angle and the intensity of the peripheral light.
作为一实施例，在主体下表面于入射腔24四周还设有散射面27，且主体上表面的出射面21于下表面的投影与所述散射面设有重叠区，即出射面21覆盖于散射面上部。此种结构的优点在于，通过散射面可将入射腔24中设置光源发出照向底部的光重新向上散射再通过出射面21配光出去，从而有效利用原本浪费了的光源发出的向下部的光强，进一步确保配光的强度。 As an embodiment, a scattering surface 27 is further disposed on the lower surface of the main body around the incident cavity 24, and a projection of the exit surface 21 of the upper surface of the main body on the lower surface is overlapped with the scattering surface, that is, the exit surface 21 is covered. Scattering the upper part. The advantage of such a structure is that the light that is disposed in the incident cavity 24 and that emits the light toward the bottom can be again scattered by the scattering surface and distributed through the exit surface 21, thereby effectively utilizing the downward light emitted by the originally wasted light source. Strong, further ensuring the intensity of the light distribution.
作为一实施例，所述主体下表面于入射腔四周设有平面，平面上设置有网状纹路构成所述散射面27。本实施例中通过在平面上形成网状纹路从而形成不规则的表面，有利于充分利用光线进行散射。网状纹路根据需要可采用方格形、菱形或点状形等。其中菱形网格状纹路效果最好。理论上也可采用条纹状纹路替代网格状纹路实现散射效果。 In one embodiment, the lower surface of the main body is provided with a plane around the incident cavity, and a mesh line is arranged on the plane to form the scattering surface 27. In this embodiment, by forming a mesh pattern on a plane to form an irregular surface, it is advantageous to make full use of light for scattering. The mesh pattern may be in the form of a square, a diamond or a dot as needed. Among them, the diamond-shaped grid pattern has the best effect. In theory, stripe-like lines can be used instead of grid-like lines to achieve scattering effects.
作为一实施例，所述主体呈圆柱形。即对应的主体的出射面21也呈圆形。圆形的出射面好处是最终配光呈圆斑，即配光方向是向四面的。 As an embodiment, the body has a cylindrical shape. That is, the exit surface 21 of the corresponding body is also circular. The advantage of the circular exit surface is that the final light distribution is rounded, that is, the light distribution direction is four sides.
作为一实施例，所述圆柱形主体边缘设有延伸部26，在延伸部26下表面设置有固定脚25。由此，整个透镜可通过固定脚25设置于所需光源上，同时又不会对主体部分的配光产生不必要的影响。 As an embodiment, the cylindrical body edge is provided with an extension 26, and the lower surface of the extension 26 is provided with a fixing leg 25. Thereby, the entire lens can be placed on the desired light source through the fixing legs 25 without unduly affecting the light distribution of the main body portion.
如图5-8，本发明还涉及一种大角度LED日光灯，它包括灯板3、LED灯4及如上述特征的透镜2。其中，灯板3上间隔设置有多个LED灯4，而透镜2则是一一对应设置于LED灯上的。由此，可使得LED日光灯中的LED灯的出射角度更为大，从而使得该种大角度LED日光灯应用于超薄灯箱中时，无需增加设置密度也能达到原有的光照要求。此外，本实施例中的LED灯4不限于一个LED芯片，可根据需要为多个LED芯片构成的发光组的LED灯4。 5-8, the present invention also relates to a high angle LED fluorescent lamp comprising a light panel 3, an LED lamp 4 and a lens 2 of the character described above. Wherein, the plurality of LED lamps 4 are arranged at intervals on the lamp board 3, and the lenses 2 are one-to-one correspondingly disposed on the LED lamps. Thereby, the exit angle of the LED lamp in the LED fluorescent lamp can be made larger, so that the high-angle LED fluorescent lamp can be used in the ultra-thin light box, and the original illumination requirement can be achieved without increasing the installation density. Further, the LED lamp 4 in the present embodiment is not limited to one LED chip, and may be an LED lamp 4 of a light-emitting group composed of a plurality of LED chips as needed.
参见图11-12所示，通过采用上述透镜在LED日光灯中，测试后，根据（最亮点照度值-最暗点照度值）/最亮点照度值=（10500-9000）/10500=14.3%，透光率60.1%，相比灯箱领域客户要求在30%以内，可见此均匀度已能充分满足广告灯箱的应用。 Referring to Figure 11-12, after using the above lens in the LED fluorescent lamp, after the test, according to (the brightest point illuminance value - the darkest point illuminance value) / the brightest point illuminance value = (10500-9000)/10500 = 14.3%, The light transmittance is 60.1%, which is less than 30% compared with the customer requirements in the light box field. It can be seen that this uniformity can fully satisfy the application of the advertising light box.
作为一实施例，上述大角度LED日光灯还包括灯体5、防尘罩1、灯头6及驱动模块8。其中驱动模块8设置于灯体5中，所述灯板3设置于灯体5外表面，其外罩有防尘罩1。本实施例灯板3固定于灯体5上，其外罩设有防尘罩1，原本本专利灯板3的每个LED灯珠上设置有透镜2后，已实现了LED灯4配光及防护的作用，其可直接裸露在外工作。而本实施例增加防尘罩1的作用主要是起防尘作用，由于每个透镜2较小，若不设置外部防尘罩1，则由于灯板3上较多部件会导致后期清扫较为麻烦。 As an embodiment, the above-mentioned large-angle LED fluorescent lamp further includes a lamp body 5, a dust cover 1, a lamp cap 6, and a driving module 8. The driving module 8 is disposed in the lamp body 5, and the lamp board 3 is disposed on the outer surface of the lamp body 5, and the outer cover is provided with the dust cover 1. In this embodiment, the lamp board 3 is fixed on the lamp body 5, and the outer cover is provided with a dust cover 1. After the lens 2 is disposed on each LED lamp bead of the original lamp board 3, the light distribution of the LED lamp 4 is realized. The role of protection, which can be directly exposed to work outside. In this embodiment, the dust cover 1 is mainly used for dust prevention. Since each lens 2 is small, if the external dust cover 1 is not provided, more parts on the light board 3 may cause troubles in later cleaning. .
作为一实施例，所述防尘罩由透明材料制成。区别于寻常LED日光灯的外罩大多需要承担配光或散射的作用，本专利中防尘罩仅仅是起到隔离的作用，因此其整体为透明材料制成，方便内部经配光后的大角度光线出射。 As an embodiment, the dust cover is made of a transparent material. The outer cover of ordinary LED fluorescent lamp mostly needs to bear the function of light distribution or scattering. In this patent, the dust cover only serves to isolate, so the whole is made of transparent material, which is convenient for large angle light after internal light distribution. Exit.
作为一实施例，所述灯条3两端的LED灯4设置密度大于中部。考虑到LED日光灯应用时候，中部的LED灯4的左右都有相邻的LED灯4，因此光照较为均匀，而处于两端的LED灯则因一侧不再有LED灯4，因此在灯条3上若简单等距离设置LED灯4势必会带来工作时LED日光灯两侧光线较暗，整体发光不均匀的问题。为此，本专利通过在灯条3两端加大LED灯4的设置密度，从而克服了上述问题。 As an embodiment, the LED lamps 4 at both ends of the light bar 3 are disposed at a density greater than the middle portion. Considering the application of the LED fluorescent lamp, the central LED lamp 4 has adjacent LED lamps 4 on the left and right sides, so the illumination is relatively uniform, and the LED lamps at both ends no longer have the LED lamps 4 on one side, so in the light bar 3 If the LED light 4 is set at a simple equidistance, it will inevitably lead to the problem that the light on both sides of the LED fluorescent lamp is dark and the overall illumination is uneven. For this reason, the present patent overcomes the above problems by increasing the density of the arrangement of the LED lamps 4 at both ends of the light bar 3.
具体实施例1： Specific embodiment 1:
如图5、7所示为一种利用了本专利技术制成的单边发光的大角度LED日光灯，其灯体5为截面近半圆形条形铝材，在灯体5内部穿套驱动模块8，灯体5的表面则设置灯板3，灯板3上间隔设置有LED灯4，对应每个LED灯4均设置一个透镜2。在整体灯板外还罩有透明的防尘罩1，灯体5两端则设置灯头6，根据需要还可为灯头6套接一个保护盖7予以保护。 As shown in FIGS. 5 and 7, a single-edge light-emitting high-angle LED fluorescent lamp made by using the patented technology has a lamp body 5 which is a nearly semi-circular strip-shaped aluminum material and is driven by a sleeve inside the lamp body 5. The module 8 and the surface of the lamp body 5 are provided with a lamp board 3, and the lamp board 3 is provided with LED lamps 4 at intervals, and a lens 2 is disposed corresponding to each of the LED lamps 4. A transparent dust cover 1 is also disposed outside the overall lamp board, and the lamp body 6 is disposed at both ends of the lamp body 5, and a protective cover 7 can be attached to the lamp cap 6 for protection according to requirements.
整体上，为了方便产品安装，灯体5两侧沿长度方向设置卡槽，对应的防尘罩1边缘则为卡台，由此防尘罩1可通过卡接方式快速与灯体5实现连接。进一步的，为了简便灯板3的固定，可在防尘罩1内侧设置卡沿，卡沿12到卡台11的高度与灯板3设置在灯体5表面后其上表面至灯体5卡槽51的高度相适配，由此在卡接防尘罩1的同时也实现对灯板3的卡接固定。 As a whole, in order to facilitate the installation of the product, the card body 5 is provided with a card slot along the length direction, and the edge of the corresponding dust cover 1 is a card table, so that the dust cover 1 can be quickly connected with the lamp body 5 by the snapping manner. . Further, in order to facilitate the fixing of the light board 3, a card edge may be disposed inside the dust cover 1, the height of the card edge 12 to the card table 11 and the light board 3 are disposed on the surface of the lamp body 5, and the upper surface thereof is attached to the lamp body 5 The height of the groove 51 is adapted so that the snap-on fixing of the lamp panel 3 is achieved while the dust cover 1 is snapped.
具体实施例2： Specific embodiment 2:
如图6、8所示为一种利用了本专利技术制成的双边发光的大角度LED日光灯，其灯体5为条形铝材，同样在灯体5内部穿套驱动模块8，灯体5有两个表面，最佳的两个表面相背设置，从而在每个表面上设置有灯板3，灯板3上间隔设置有LED灯4，对应每个LED灯4均设置一个透镜2。在整体灯板外还罩有透明的防尘罩1，灯体5两端则设置灯头6。 FIG. 6 and FIG. 8 show a double-angle LED fluorescent lamp made by using the patented technology. The lamp body 5 is a strip-shaped aluminum material, and the driving module 8 is also worn inside the lamp body 5. 5 has two surfaces, the best two surfaces are arranged opposite each other, so that a light board 3 is arranged on each surface, and the LED board 4 is arranged on the light board 3, and a lens 2 is arranged corresponding to each of the LED lights 4. . A transparent dust cover 1 is also disposed outside the entire lamp panel, and the lamp cap 6 is disposed at both ends of the lamp body 5.
在70mm间距时，光斑在250mm范围内整体均匀，透光率80.0% At 70mm pitch, the spot is uniform over 250mm, and the light transmittance is 80.0%.
整体上，为了方便产品安装，灯体5两侧沿长度方向设置卡槽，对应的防尘罩1边缘则为卡台，由此防尘罩1可通过卡接方式快速与灯体5实现连接。 As a whole, in order to facilitate the installation of the product, the card body 5 is provided with a card slot along the length direction, and the edge of the corresponding dust cover 1 is a card table, so that the dust cover 1 can be quickly connected with the lamp body 5 by the snapping manner. .
以上所述仅为本发明的实施例，并非因此限制本发明的专利范围，例如在一个灯体上可设置的灯条数量不限于上述两个实施例的方式，也可根据需要在多个面上设置多个灯条，从而形成一个可全方位均匀发光的LED日光灯，因此凡是利用本发明说明书及附图内容所作的等效结构或等效流程变换，或直接或间接运用在其他相关的技术领域，均同理包括在本发明的专利保护范围内。 The above description is only an embodiment of the present invention, and thus does not limit the scope of the patent of the present invention. For example, the number of light bars that can be disposed on one lamp body is not limited to the manner of the above two embodiments, and may be in multiple faces as needed. A plurality of light strips are arranged to form an LED fluorescent lamp capable of uniformly emitting light in all directions, so that the equivalent structure or equivalent process transformation made by using the specification and the drawings of the present invention is directly or indirectly applied to other related technologies. The fields are all included in the scope of patent protection of the present invention.

Claims (10)

  1. 1、一种用于LED日光灯的透镜，其特征在于：它包括主体，主体上表面外凸形成有出射面，出射面中部设有凹面，主体下表面对应凹面位置内凹形成有入射腔，入射腔内壁为入射面。 A lens for an LED fluorescent lamp, characterized in that it comprises a main body, an upper surface of the main body is convexly formed with an exit surface, and a concave surface is provided at a middle portion of the exit surface, and an incident cavity is formed concavely corresponding to the concave surface of the main body. The inner wall of the cavity is the incident surface.
  2. 2、如权利要求1所述的用于LED日光灯的透镜，其特征在于：所述入射腔纵截面呈锥形；所述主体出射面的凹面最低点与锥形入射腔顶点对应设置。2. The lens for an LED fluorescent lamp according to claim 1, wherein the incident cavity has a longitudinal section; the lowest point of the concave surface of the body exit surface is corresponding to the apex of the tapered incident cavity.
  3. 3、如权利要求1所述的用于LED日光灯的透镜，其特征在于：所述主体下表面于入射腔四周设有散射面；所述主体上表面的出射面于下表面的投影与所述散射面设有重叠区。3. The lens for an LED fluorescent lamp according to claim 1, wherein a lower surface of the main body is provided with a scattering surface around the incident cavity; a projection of the exit surface of the upper surface of the main body on the lower surface and the The scattering surface is provided with an overlapping area.
  4. 4、如权利要求3所述的用于LED日光灯的透镜，其特征在于：所述主体下表面于入射腔四周设有平面，平面上设置有网状纹路构成所述散射面。The lens for an LED fluorescent lamp according to claim 3, wherein the lower surface of the main body is provided with a plane around the incident cavity, and a mesh line is disposed on the plane to constitute the scattering surface.
  5. 5、如权利要求1-4任意一项所述的用于LED日光灯的透镜，其特征在于：所述主体呈圆柱形。A lens for an LED fluorescent lamp according to any one of claims 1 to 4, wherein the body has a cylindrical shape.
  6. 6、如权利要求5所述的用于LED日光灯的透镜，其特征在于：所述圆柱形主体边缘设有延伸部，所述延伸部下表面设置有固定脚。6. A lens for an LED fluorescent lamp according to claim 5, wherein the cylindrical body edge is provided with an extension, and the lower surface of the extension is provided with a fixing leg.
  7. 7、一种大角度LED日光灯，其特征在于：它包括灯板、LED灯及如权利要求1-6任意一项所述的透镜；所述灯板上间隔设置有多个LED灯，所述透镜一一对应设置于LED灯上。A large-angle LED fluorescent lamp, comprising: a light panel, an LED lamp, and the lens according to any one of claims 1 to 6; wherein the lamp panel is provided with a plurality of LED lamps spaced apart, The lenses are arranged one by one on the LED lamp.
  8. 8、如权利要求7所述的大角度LED日光灯，其特征在于：它还包括灯体、防尘罩、灯头及驱动模块；所述驱动模块设置于灯体中，所述灯板设置于灯体外表面，其外罩有防尘罩。The large-angle LED fluorescent lamp according to claim 7, further comprising a lamp body, a dust cover, a lamp cap and a driving module; wherein the driving module is disposed in the lamp body, and the lamp board is disposed on the lamp The outer surface has a dust cover on the outer cover.
  9. 9、如权利要求8所述的大角度LED日光灯，其特征在于：所述防尘罩由透明材料制成。9. The high angle LED fluorescent lamp of claim 8 wherein said dust cover is made of a transparent material.
  10. 10、如权利要求7-9任意一项所述的大角度LED日光灯，其特征在于：所述灯条两端的LED灯设置密度大于中部。The high-angle LED fluorescent lamp according to any one of claims 7-9, wherein the LED lamps at both ends of the light bar are disposed at a density greater than a middle portion.
PCT/CN2014/076648 2014-04-30 2014-04-30 Strip-shaped lens for use in led lamp and wide-angle led lamp WO2015165096A1 (en)

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CN101852388A (en) * 2010-06-23 2010-10-06 深圳市九洲光电科技有限公司 Wide-angle light-distribution lens for LEDs and application thereof
CN103322505A (en) * 2012-03-19 2013-09-25 郎欢标 Secondary optical lens used in liquid crystal display backlight system
JP2013218940A (en) * 2012-04-11 2013-10-24 Sharp Corp Light-emitting module, lighting device including the same, and display device
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