TWM473525U - Optical lens - Google Patents
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- TWM473525U TWM473525U TW102202507U TW102202507U TWM473525U TW M473525 U TWM473525 U TW M473525U TW 102202507 U TW102202507 U TW 102202507U TW 102202507 U TW102202507 U TW 102202507U TW M473525 U TWM473525 U TW M473525U
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Description
本創作係關於一種光學透鏡,特別是關於一種將微透鏡排列為螺旋狀,進而均勻LED之輸出光源並改善輸出光型的光學透鏡。The present invention relates to an optical lens, and more particularly to an optical lens in which microlenses are arranged in a spiral shape to uniform the output source of the LED and to improve the output light pattern.
發光二極體(Light Emitting Diode,LED)為一種半導體元件,吾人藉由半導體化合物將電能轉換為光能以達到發光效果,發光二極體在低光度下能量轉換效率高,因此其具有耗電量小、壽命長、穩定性高、以及無紫外線輻射產生等優點,目前已被廣泛地應用於一般家庭、商業辦公、室外與行動照明,並取代燈管及白熾燈泡等傳統的非指向性發光源。Light Emitting Diode (LED) is a kind of semiconductor component. We convert electrical energy into light energy by semiconductor compound to achieve luminous effect. The light-emitting diode has high energy conversion efficiency at low light level, so it has power consumption. It has the advantages of small quantity, long life, high stability, and no ultraviolet radiation. It has been widely used in general household, commercial office, outdoor and mobile lighting, and replaces traditional non-directional illumination such as lamps and incandescent bulbs. source.
由於發光二極體多使用藍光晶片搭配螢光粉混合而發出白光,但由於螢光粉的濃度與放置位置的不同,會導致光源輸出不均勻的現象,進而影響照明品質,致使用者降低使用意願。Since the light-emitting diodes use a combination of a blue light wafer and a fluorescent powder to emit white light, the concentration of the fluorescent powder and the placement position may cause uneven output of the light source, thereby affecting the illumination quality and causing the user to reduce the use. Willingness.
鑒於以上所述,使用發光二極體作為光源的裝置多會加上導光元件/透鏡,將光線向外導引擴散,達到均勻出光的效果。如第1a圖所示之習知的導光透鏡100,其利用排列為蜂巢狀之微透鏡12(Micro Lens),其中微透鏡具有曲率半徑R,且每個微透鏡之頂部相互距離一排列間距P而設置,能夠改善發光二極體的不均勻光線,使局部區域內的光源輸出較為均勻。In view of the above, a device using a light-emitting diode as a light source is often provided with a light guiding element/lens to guide the light outward to achieve uniform light output. A conventional light guiding lens 100 as shown in FIG. 1a utilizes a microlens 12 (Micro Lens) arranged in a honeycomb shape, wherein the microlenses have a radius of curvature R, and the tops of each microlens are spaced apart from each other by an arrangement pitch. The P is provided to improve the uneven light of the light-emitting diode, so that the light source output in the local area is relatively uniform.
然而,如第1b圖所示,習知導光透鏡之蜂巢排列方式雖可將光線擴散,但蜂巢狀的排列方式會導致微透鏡呈現六角型,光線經過這些呈現六角型的微透鏡,會使得邊緣光型呈現六角型。However, as shown in FIG. 1b, although the honeycomb arrangement of the conventional light guiding lens can diffuse light, the honeycomb arrangement causes the microlens to assume a hexagonal shape, and the light passes through these hexagonal microlenses, which makes The edge light pattern is hexagonal.
緣此,本創作即是提供一種光學透鏡,以解決發光二極體輸出光源不均的問題並改善輸出光型。Therefore, the present invention provides an optical lens to solve the problem of uneven output light source of the light emitting diode and to improve the output light type.
本創作為解決習知技術之問題所採用之技術手段為一種光學透鏡,其適用於一光源,包含:一透鏡基體,具有一入光側與一出光側,入光側鄰近於光源,透鏡基體於出光側設有複數個子透鏡部,此些子透鏡部於出光側排列為螺旋狀,其中,此些子透鏡部具有相同或相異的出光面曲率半徑,以及相同或相異的排列間距。The technical means used in the present invention to solve the problems of the prior art is an optical lens, which is suitable for a light source, comprising: a lens base having a light incident side and a light exiting side, the light incident side being adjacent to the light source, and the lens base body. A plurality of sub-lens portions are disposed on the light-emitting side, and the sub-lens portions are arranged in a spiral shape on the light-emitting side, wherein the sub-lens portions have the same or different radiance of curvature of the illuminating surface, and the same or different arrangement pitches.
在本創作的一實施例中,其中透鏡基體於入光側更包括一容置槽,光源容置於容置槽之中。In an embodiment of the present invention, the lens base further includes a receiving groove on the light incident side, and the light source is received in the receiving groove.
在本創作的一實施例中,其中此些子透鏡部之出光面為多稜面。In an embodiment of the present invention, the light-emitting surface of the sub-lens portions is a polygonal surface.
在本創作的一實施例中,其中此些子透鏡部之出光面為一曲面。In an embodiment of the present invention, the light exiting surface of the sub-lens portions is a curved surface.
在本創作的一實施例中,其中此些子透鏡部於出光面上所排列之螺旋狀為單旋臂。In an embodiment of the present invention, the spiral shape of the sub-lens portions arranged on the light-emitting surface is a single spiral arm.
在本創作的一實施例中,其中此些子透鏡部於出光面上所排列之螺旋狀為多旋臂。In an embodiment of the present invention, the helical shape of the sub-lens portions arranged on the light-emitting surface is a multi-rotor arm.
在本創作的一實施例中,其中透鏡基體於出光側的中央處有一中央出光面,此些子透鏡部排列設置於中央出光面之外圍。In an embodiment of the present invention, the lens base has a central light exiting surface at the center of the light exiting side, and the sub-lens portions are arranged at the periphery of the central light exiting surface.
經由本創作所採用之技術手段,藉由調整每個子透 鏡部之間的間距或是改變曲率半徑,發光二極體的光線通過子透鏡部時能夠均勻擴散,避免輸出光線過度集中於某些區域。此外,由於子透鏡部係以螺旋狀排列於出光側之上,所以當邊緣之輸出光源漸弱時,輸出光型的外緣輪廓會依然保持圓形,從而使之改善輸出光型。By adjusting the technical means used in this creation, by adjusting each sub-perforation The spacing between the mirror portions or the radius of curvature is changed, and the light of the light-emitting diode can be uniformly diffused through the sub-lens portion to prevent the output light from being excessively concentrated in certain regions. In addition, since the sub-lens portions are arranged in a spiral shape on the light-emitting side, when the output light source of the edge is gradually weakened, the outer-edge contour of the output light pattern remains circular, thereby improving the output light pattern.
本創作所採用的具體實施例,將藉由以下之實施例及附呈圖式作進一步之說明。The specific embodiments of the present invention will be further described by the following examples and accompanying drawings.
配合參閱第2a圖至第2d圖,第2a圖係顯示本創作之第一實施例之光學透鏡之側視圖,第2b圖係顯示本創作之第一實施例之上視圖,第2c圖係顯示本創作之第一實施例之剖視示意圖,第2d圖係顯示本創作之第一實施例之照度圖。Referring to Figures 2a to 2d, Figure 2a shows a side view of the optical lens of the first embodiment of the present invention, and Figure 2b shows a top view of the first embodiment of the present creation, and Figure 2c shows the second embodiment. A schematic cross-sectional view of the first embodiment of the present invention, and a second diagram showing the illuminance map of the first embodiment of the present creation.
請參照第2a圖至第2d圖,依據本創作之第一實施例之一光學透鏡100a係適用於一光源L,包含一透鏡基體1。透鏡基體1為一上寬下窄之杯型結構,具有一入光側S1以及一出光側S2,並包括一容置槽11以及複數個子透鏡部12a。透鏡基體1可由矽膠、壓克力、玻璃或聚碳酸酯等透明材質製成。容置槽11設置於透鏡基體1之底部而鄰近入光側S1,光源L能夠容置於其中。容置槽11的形狀可為ㄇ字型或是可於內壁面有許多凸出部而改變光源L的光線方向,使輸出光線更為集中或發散,本創作並不限於此,端看實際應用所需。Referring to FIGS. 2a to 2d, the optical lens 100a according to the first embodiment of the present invention is applied to a light source L, and includes a lens substrate 1. The lens substrate 1 is a cup-shaped structure having an upper width and a lower width, and has a light-incident side S1 and a light-emitting side S2, and includes a receiving groove 11 and a plurality of sub-lens portions 12a. The lens base 1 can be made of a transparent material such as silicone, acryl, glass or polycarbonate. The accommodating groove 11 is disposed at the bottom of the lens base 1 adjacent to the light incident side S1, and the light source L can be accommodated therein. The shape of the accommodating groove 11 may be U-shaped or may have a plurality of protrusions on the inner wall surface to change the direction of the light of the light source L, so that the output light is more concentrated or diverged, and the creation is not limited thereto. Required.
子透鏡部12a係由複數個微透鏡所組成,其凸設於透鏡基體1的出光側S2上,並具有一出光面以及一出光面曲率半徑,且每個子透鏡部12a之出光面端部與其他子透鏡部12a之出光面端部距離一排列間距。在本實 施例中,每個子透鏡部12a的出光面為曲面,其皆具有相同之曲率半徑R1,設置時每個子透鏡部12以相異之排列間距而相隔,這些複數個子透鏡部12a以出光側S2的中央處為原點,而於出光側S2之上排列為螺旋狀,且該螺旋為單旋臂。附帶一提,子透鏡部12a之稜面根據需求而可為三稜面、四稜面、五稜面或其他多稜面。而在本實施例中,這些子透鏡部12a的形狀係包括五稜面和四稜面。The sub-lens portion 12a is composed of a plurality of microlenses which are convexly disposed on the light-emitting side S2 of the lens base 1 and have a light-emitting surface and a light-emitting surface radius of curvature, and the light-emitting surface end of each of the sub-lens portions 12a is The ends of the light-emitting surfaces of the other sub-lens portions 12a are spaced apart from each other by an arrangement pitch. In this reality In the embodiment, the light-emitting surface of each of the sub-lens portions 12a is a curved surface, and all have the same radius of curvature R1. When disposed, each of the sub-lens portions 12 is spaced apart by a different arrangement pitch, and the plurality of sub-lens portions 12a are on the light-emitting side S2. The center is the origin, and is arranged in a spiral shape above the light exiting side S2, and the spiral is a single spiral arm. Incidentally, the facet surface of the sub-lens portion 12a may be a triangular face, a quadrangular face, a pentagonal face, or other polygonal face, as needed. In the present embodiment, the shape of the sub-lens portions 12a includes a pentagonal surface and a quadrangular surface.
詳細而言,如第2c圖所示,子透鏡部121a至123a具有相同之曲率半徑R,子透鏡部121a與子透鏡部122a的出光面頂端之排列間距為P1,而子透鏡部122a與子透鏡部123a的出光面頂端之排列間距為P2,亦即,子透鏡部121a、122a以及123a係以相異之排列間距而間隔。不過,在其他的實施例中,子透鏡部121a、122a以及123a也可具有相同之曲率半徑R,並以相同之排列間距P(亦即P1=P2)而間隔。Specifically, as shown in Fig. 2c, the sub-lens portions 121a to 123a have the same curvature radius R, and the arrangement pitch of the sub-lens portion 121a and the tip end of the light-emitting surface of the sub-lens portion 122a is P1, and the sub-lens portion 122a and the sub-lens portion 122a The arrangement pitch of the tips of the light-emitting surfaces of the lens portion 123a is P2, that is, the sub-lens portions 121a, 122a, and 123a are spaced apart by a different arrangement pitch. However, in other embodiments, the sub-lens portions 121a, 122a, and 123a may have the same radius of curvature R and be spaced apart by the same arrangement pitch P (i.e., P1 = P2).
詳細而言,當光源L發出光線時,光線自入光側S1進入經過透鏡基體1,並傳遞至出光側S2而進入子透鏡部12a,光線經子透鏡部12a之出光面後可均勻於所需之區域。由於子透鏡部12a係以螺旋狀排列於出光側S2之上,所以當邊緣之輸出光源漸弱時,輸出光型的外緣輪廓會依然保持圓形,如第2d圖所示,從而使之改善發光二極體的輸出光型,而使得輸出光型能夠改善而為圓形。並且,藉由調整每個子透鏡部12a之間的排列間距,光源L的光線通子透鏡部12a時能夠集中/擴散至所需區域,避免發光二極體的輸出光線過度集中/擴散至特定區域而使光線輸出更加均勻。In detail, when the light source L emits light, the light enters the lens substrate 1 from the light incident side S1 and is transmitted to the light exiting side S2 to enter the sub-lens portion 12a. The light is evenly distributed through the light exiting surface of the sub-lens portion 12a. The area needed. Since the sub-lens portion 12a is spirally arranged on the light-emitting side S2, when the output source of the edge is weakened, the outer contour of the output light pattern remains circular, as shown in FIG. 2d, thereby making it The output light pattern of the light-emitting diode is improved, so that the output light pattern can be improved to be circular. Further, by adjusting the arrangement pitch between each of the sub-lens portions 12a, the light of the light source L can be concentrated/diffused to the desired region by the sub-lens portion 12a, and the output light of the light-emitting diode is prevented from being excessively concentrated/diffused to a specific region. And make the light output more uniform.
請參照第3a圖以及第3b圖,第3a圖係顯示本創 作之第二實施例之光學透鏡之上視圖,第3b圖係顯示本創作之第二實施例之光學透鏡之剖視示意圖。如圖所示,其係為本創作之第二實施例之光學透鏡100b且與第一實施例之光學透鏡100a相似,然而差別在於光學透鏡100b的每個子透鏡部12b具有相異之曲率半徑及排列間距。如第3b圖所示,子透鏡部121b、122b以及123b之曲率半徑分別為R1、R2以及R3,子透鏡部121b與子透鏡部122b之排列間距為P1,而子透鏡部122b與子透鏡部123b之排列間距為P2。藉由這樣的設置,製造者可根據需求而調整子透鏡部12b的曲率半徑,而使發光二極體之輸出光源的輸出光線較光學透鏡100a更加均勻。Please refer to Figure 3a and Figure 3b. Figure 3a shows the creation. 2 is a top view of the optical lens of the second embodiment, and FIG. 3b is a cross-sectional view showing the optical lens of the second embodiment of the present invention. As shown, it is the optical lens 100b of the second embodiment of the present invention and is similar to the optical lens 100a of the first embodiment, but the difference is that each sub-lens portion 12b of the optical lens 100b has a different radius of curvature and Arrange the spacing. As shown in FIG. 3b, the curvature radii of the sub-lens portions 121b, 122b, and 123b are R1, R2, and R3, respectively, and the arrangement pitch of the sub-lens portion 121b and the sub-lens portion 122b is P1, and the sub-lens portion 122b and the sub-lens portion. The arrangement pitch of 123b is P2. With such an arrangement, the manufacturer can adjust the radius of curvature of the sub-lens portion 12b as needed, so that the output light of the output light source of the light-emitting diode is more uniform than the optical lens 100a.
除了前述之設置方式,複數個子透鏡部12b也可以相異之曲率半徑與相同之排列間距而設置於出光側S2上,也可達到均勻輸出光源與改善輸出光型之成效。In addition to the above-described arrangement, the plurality of sub-lens portions 12b can be disposed on the light-emitting side S2 with different curvature radii and the same arrangement pitch, and the effect of uniformly outputting the light source and improving the output light pattern can be achieved.
根據輸出光型之需求,子透鏡部所排列之螺旋狀也可有其他變化。請參照第4圖至第6圖,第4圖至第6圖係顯示本創作之第三實施例至第五實施例之光學透鏡之上視圖。如第4圖所示,其係為本創作之第三實施例之光學透鏡100c。其與第一實施例的光學透鏡100a相似,然其差別出光側S2之中央處有一圓形的中央出光面Sc,每個子透鏡部12c自該中央出光面之外緣輪廓而排列設置為單旋臂之螺旋狀,因此光學透鏡100c能夠形成與第一實施例的光學透鏡100a相異之輸出光型。應注意的是,中央出光面Sc可為凸面、凹面或平面,且中央出光面Sc之形狀可為任意形狀,端看實際應用所需,本創作並不限於此。第5圖則顯示本創作之第四實施例之光學透鏡100d,其與第二實施例的光學 透鏡100b相似,然其差異在於每個子透鏡部12d由出光側S2的中央處以雙旋臂之螺旋狀而由內向外地排列設置,因此能夠形成與第二實施例的光學透鏡100b相異之輸出光型。第6圖係顯示本創作之第五實施例之光學透鏡100e,其與第四實施例的光學透鏡100d之差異在於子透鏡部100e係排列為三旋臂之螺旋狀,因此能夠形成與第四實施例的光學透鏡100d相異之輸出光型。Depending on the output light type, there may be other variations in the spiral shape in which the sub-lens portions are arranged. Referring to FIGS. 4 to 6, FIG. 4 to FIG. 6 are views showing the optical lens of the third to fifth embodiments of the present invention. As shown in Fig. 4, it is the optical lens 100c of the third embodiment of the present invention. It is similar to the optical lens 100a of the first embodiment, but has a circular central light-emitting surface Sc at the center of the light-emitting side S2, and each of the sub-lens portions 12c is arranged in a single rotation from the outer edge contour of the central light-emitting surface. Since the arm is spiral, the optical lens 100c can form an output light pattern different from the optical lens 100a of the first embodiment. It should be noted that the central light-emitting surface Sc may be a convex surface, a concave surface or a flat surface, and the shape of the central light-emitting surface Sc may be any shape, and the present invention is not limited thereto. Figure 5 shows an optical lens 100d of the fourth embodiment of the present invention, which is optical with the second embodiment. The lens 100b is similar, but the difference is that each of the sub-lens portions 12d is arranged from the center to the center of the light-emitting side S2 in a spiral shape of a double-wrap arm, and thus an output light different from the optical lens 100b of the second embodiment can be formed. type. Fig. 6 is a view showing an optical lens 100e according to a fifth embodiment of the present invention, which is different from the optical lens 100d of the fourth embodiment in that the sub-lens portion 100e is arranged in a spiral shape of a three-legged arm, and thus can be formed and fourth. The optical lens 100d of the embodiment is different in output light type.
除了上述之螺旋形狀,本創作之光學透鏡也可將複數個子透鏡部以多旋臂之螺旋漸開線、費馬螺旋線或其他螺旋線而設置,端看實際需求及應用。In addition to the spiral shape described above, the optical lens of the present invention can also be provided with a plurality of sub-lens portions by a spiral involute of a multi-spiral arm, a Fermat spiral or other spirals, depending on actual needs and applications.
藉由上述之結構,本創作之光學透鏡100a的子透鏡部12a係排列為螺旋狀而能夠改善輸出光型,並且,子透鏡部12a之排列間距與曲率半徑能夠為相同或相異,因此能夠根據實際應用所需而均勻輸出光線或集中輸出光線於所需之區域,使得發光二極體之照明更有效率而廣泛應用。According to the above configuration, the sub-lens portions 12a of the optical lens 100a of the present invention are arranged in a spiral shape to improve the output light pattern, and the arrangement pitch and the curvature radius of the sub-lens portions 12a can be the same or different, and thus According to the actual application, the light is evenly outputted or the output light is concentrated in the desired area, so that the illumination of the LED is more efficient and widely used.
由以上之實施例可知,本創作所提供之光學透鏡確具產業上之利用價值,故本創作業已符合於專利之要件。唯以上之敘述僅為本創作之較佳實施例說明,凡精於此項技藝者當可依據上述之說明而作其它種種之改良,唯這些改變仍屬於本創作之創作精神及以下所界定之專利範圍中。It can be seen from the above embodiments that the optical lens provided by the present invention has industrial use value, so the original operation has been in conformity with the requirements of the patent. The above description is only for the preferred embodiment of the present invention, and those skilled in the art can make other improvements according to the above description, but these changes still belong to the creative spirit of the creation and the following definitions. In the scope of patents.
100‧‧‧習知的導光透鏡100‧‧‧Conventional Light Guide Lens
100a、100b、100c、100d、100e‧‧‧光學透鏡100a, 100b, 100c, 100d, 100e‧‧‧ optical lenses
1‧‧‧透鏡基體1‧‧‧Lens base
11‧‧‧容置槽11‧‧‧ accommodating slots
12‧‧‧微透鏡12‧‧‧Microlens
12a、12b、12c、12d、12e‧‧‧子透鏡部12a, 12b, 12c, 12d, 12e‧‧‧ sub-lens
P、P1、P2‧‧‧排列間距P, P1, P2‧‧‧ arrangement spacing
R、R1、R2、R3‧‧‧曲率半徑R, R1, R2, R3‧‧‧ radius of curvature
S1‧‧‧入光側S1‧‧‧ light side
S2‧‧‧出光側S2‧‧‧ light side
Sc‧‧‧中央出光面Sc‧‧‧Central glazing
第1a圖係顯示習知的導光透鏡之上視圖;第1b圖係顯示習知的導光透鏡之剖視示意圖;第1c圖係顯示習知的導光透鏡之以x為水平軸和y為垂直軸的xy平面之照度圖;第2a圖係顯示本創作之第一實施例之光學透鏡之側視 圖;第2b圖係顯示本創作之第一實施例之光學透鏡之上視圖;第2c圖係顯示本創作之第一實施例之光學透鏡之剖視示意圖;第2d圖係顯示本創作之第一實施例之光學透鏡之照度圖;第3a圖係顯示本創作之第二實施例之光學透鏡之上視圖;第3b圖係顯示本創作之第二實施例之光學透鏡之剖視示意圖;第4圖至第6圖係顯示本創作之第三實施例至第五實施例之光學透鏡之上視圖。Fig. 1a shows a top view of a conventional light guiding lens; Fig. 1b shows a schematic cross-sectional view of a conventional light guiding lens; Fig. 1c shows a conventional light guiding lens with x as a horizontal axis and y Illumination diagram of the xy plane of the vertical axis; Figure 2a shows the side view of the optical lens of the first embodiment of the present invention Figure 2b is a top view of the optical lens of the first embodiment of the present invention; Figure 2c is a schematic cross-sectional view showing the optical lens of the first embodiment of the present invention; The illuminance diagram of the optical lens of an embodiment; the 3a is a top view of the optical lens of the second embodiment of the present invention; and the 3b is a schematic cross-sectional view of the optical lens of the second embodiment of the present invention; 4 to 6 are views showing an upper view of the optical lenses of the third to fifth embodiments of the present invention.
100a‧‧‧光學透鏡100a‧‧‧ optical lens
12a‧‧‧子透鏡部12a‧‧‧Sub-lens section
S2‧‧‧出光側S2‧‧‧ light side
Claims (7)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
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TW102202507U TWM473525U (en) | 2013-02-05 | 2013-02-05 | Optical lens |
CN 201320075906 CN203190311U (en) | 2013-02-05 | 2013-02-18 | Optical lens |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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TW102202507U TWM473525U (en) | 2013-02-05 | 2013-02-05 | Optical lens |
Publications (1)
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TWM473525U true TWM473525U (en) | 2014-03-01 |
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TW102202507U TWM473525U (en) | 2013-02-05 | 2013-02-05 | Optical lens |
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CN (1) | CN203190311U (en) |
TW (1) | TWM473525U (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
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CN104566210A (en) * | 2013-10-25 | 2015-04-29 | 浚洸光学科技股份有限公司 | Micro structure ranging method |
TWI607179B (en) * | 2016-11-30 | 2017-12-01 | 隆達電子股份有限公司 | Lens array, vehicle lamp lenses using lens array, and vehicle lamp using vehicle lamp lenses |
CN211554499U (en) * | 2019-10-24 | 2020-09-22 | 深圳市绎立锐光科技开发有限公司 | Light source system |
-
2013
- 2013-02-05 TW TW102202507U patent/TWM473525U/en not_active IP Right Cessation
- 2013-02-18 CN CN 201320075906 patent/CN203190311U/en not_active Expired - Lifetime
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