1255321 九、發明說明： 【發明所屬之技術領域】 本發明係關於一種高亮度發光二極體^^“ emitting Mode，LED)照明燈具裝置與製程，主要可提高照明燈具的 亮度’將散熱、光學與耐候三種功能整合為一，以確保 LED燈泡底座與電路板的永久緊密接觸，增強其散熱功能 ，並可確保產品可罪度與舞命，並提升光學效率與耐候性 〇 【先前技術】 南冗度LED照明可以郎省電能，為次世代照明科技， 未來將可廣泛應用。除了能省能源外，LED具有壽命高的 優點，但其前題是散熱必需良好，否則很容易燒毁，尤其 LED燈泡所能容忍的燈心溫度通常不超過i 2 〇它，遠低 於傳統燈泡；因此，高亮度LED照明燈具的設計與製法， 會影響其使用壽命。 高亮度LED燈具的發光體部份（稱「發光模組」）， 通常包含多數個LED燈泡，必需焊接在電路板上，且LE]) 燈泡底座必需與電路板緊密接觸，以增加導熱，避免led 燈泡因散熱不良而燒毀。 為了增加導熱效果，一般高亮度LED燈泡採用 SMD(surface-mounted design)的設計（如第十圖中所示） ，熱由底部導熱面（6〇)傳出，電極（61) (62) 焊接在銘基電路板（6 3 )上，於焊接時，係先將led燈 泡（7 〇 )定位在電路板（6 3 )的電極（6工）(6 2 1255321 )上，於壓緊後再焊接。由於缺乏永久固定裝置，即使採 用導熱膠黏著方式，於焊接完成後，由於熱脹冷縮作用， 無法確定LED燈泡底座與電路板（6 3 )可以緊密接觸， 也很難逐一對LED燈泡（7 〇 )的接觸狀況進行品管檢驗 ’故會降低高亮度LED照明燈具的產品使用壽命與可靠度 •’如果LED燈泡採用多排設計，焊接製程複雜，品管更難 。針對室外型LED照明燈具，除了上述製程問題引發的散 熱問題外，如何具有耐候性，也極重要，技術更困難；傳 統燈具的防水設計是在透明蓋周圍，進行密封處理，因面 積大，而不易解決濕氣滲入問題。 同焭度LED照明燈具之關鍵技術，除了散熱與耐候技 術以外，光學設計也很重要。傳統的LED照明燈具設計如 第十一圖中所示，除了 LED燈泡（7 〇 )外，必需裝設光 反射罩（71)(燈罩）與光學透鏡（72)(透明 ’以將LED燈泡（70)發出的光線導引並射出，光經過 光反射罩（71)的反射與光學透鏡的穿彡，造成雙重損 失，影響其最後射出之光度，如何減少光學損失是提高 LED照明效率的重要因素。 【發明内容】 以綠保LED燈泡底座、電路板、導熱固定座的永久緊密接 觸，增強其散熱功能，並形成一密閉體，可確保產品可靠 有鑑於習知者所產生的缺點，加以改良，本發明主要 目的即在提供一種高亮度發光二極體照明燈具裝置與製程 ’本發明主要係將散熱、光學與耐候三種功能整合為一， 1255321 度與哥命，並提升光學效率與耐候性。 為達成前述目的採取的主要技術手段係包括： 其係以發光模組組成’發光模組係由光源體、永久固 疋板、透光板、固定螺絲、防水緊迫材料與導熱固定座構 成’緊密相接形成密閉體；光源體係由複數個LED燈泡焊 接於一電路板上構成； 永久固定板上附有複數個孔洞，除用來與導熱固定座 緊緊壓住光源體上的LED燈泡以增強導熱性能外，其孔洞 内面可直接製成光學反光面，或套上一層光反射面，將 LED發出之燈光直接導引外射；透光板置於永久固定板上 ，藉由一蓋板以及防水緊迫材料與固定螺絲將其緊緊與永 久固定板鎖緊，達到耐候密封㈣；電路板f面與具散熱 功能之光導熱固定座緊密相#，其間並藉由防水緊迫材料 將其鎖緊’以達到耐候密封目的；發光模組也可另與燈罩 緊密相接合’使得LED之熱量可以經由電路板、導熱 座與燈罩散至空氣中；藉此，可將散熱、光學與耐候三種 功能整合為-，以確保導熱^座與電路板的永久緊㈣ 觸，增強其散熱功能，確保產品可靠度與壽命，並提 學效率與耐候性。 尤 【實施方式】 發明係為一種高亮度發光二極體（LED)照明佟|1255321 IX. Description of the Invention: [Technical Field] The present invention relates to a high-intensity light-emitting diode (LED) illumination device and process, which can mainly improve the brightness of a lighting fixture. Integrates with weathering three functions to ensure permanent close contact between the LED bulb base and the board, enhances its heat dissipation function, and ensures product sin and performance, and improves optical efficiency and weather resistance. [Prior Art] Redundant LED lighting can save energy for the next generation, and it will be widely used in the future. In addition to energy saving, LED has the advantage of high life, but its premise is that heat dissipation must be good, otherwise it is easy to burn, especially The temperature of the lamp core that can be tolerated by LED bulbs usually does not exceed i 2 〇, which is much lower than that of traditional bulbs; therefore, the design and manufacturing method of high-brightness LED lighting fixtures will affect their service life. The illuminant part of high-brightness LED lamps ( Called "lighting module"), usually contains a large number of LED bulbs, must be soldered on the board, and LE]) bulb base must be with the board Close contact to increase heat conduction and avoid burning of led bulbs due to poor heat dissipation. In order to increase the thermal conductivity, the general high-brightness LED bulb adopts the SMD (surface-mounted design) design (as shown in the tenth figure), the heat is transmitted from the bottom heat conduction surface (6〇), and the electrode (61) (62) is welded. On the Mingji circuit board (63), when soldering, first place the led bulb (7 〇) on the electrode (6 gong) (6 2 1255321) of the circuit board (6 3 ), after pressing, welding. Due to the lack of permanent fixing device, even after the heat-adhesive bonding method, after the welding is completed, due to the thermal expansion and contraction, it is impossible to determine that the LED bulb base and the circuit board (63) can be in close contact, and it is difficult to make a pair of LED bulbs. 〇) The quality of the contact condition is checked. It will reduce the service life and reliability of high-brightness LED lighting fixtures. 'If the LED bulbs are designed in multiple rows, the welding process is complicated and the quality control is more difficult. For outdoor LED lighting fixtures, in addition to the heat dissipation problems caused by the above process problems, how to have weather resistance is also very important, and the technology is more difficult; the waterproof design of the traditional lamps is sealed around the transparent cover, because of the large area. It is not easy to solve the problem of moisture infiltration. In addition to heat dissipation and weathering technology, optical design is also important in the key technologies of LED lighting. The traditional LED lighting design is as shown in the eleventh figure. In addition to the LED bulb (7 〇), it is necessary to install a light reflector (71) (light cover) and an optical lens (72) (transparent 'to turn the LED bulb ( 70) The emitted light is guided and emitted, and the light passes through the reflection of the light reflecting cover (71) and the piercing of the optical lens, causing double loss, affecting the luminosity of the last shot, and how to reduce the optical loss is an important factor for improving the LED lighting efficiency. [Invention] The permanent contact of the green LED bulb base, the circuit board and the heat-conducting fixed seat enhances the heat-dissipating function and forms a closed body, which ensures the reliability of the product and is improved in view of the shortcomings of the prior art. The main purpose of the present invention is to provide a high-intensity light-emitting diode lighting device and process. The present invention mainly integrates three functions of heat dissipation, optical and weather resistance into one, 1255321 degrees and life, and improves optical efficiency and weather resistance. The main technical means adopted to achieve the above objectives include: It consists of a light-emitting module. The light-emitting module is made up of a light source body, a permanent solid plate, and a light-transmitting plate. The plate, the fixing screw and the waterproof pressing material are closely connected with the heat-conducting fixing seat to form a closed body; the light source system is composed of a plurality of LED bulbs welded to a circuit board; the permanent fixing plate is provided with a plurality of holes, except for The heat-conducting fixing seat tightly presses the LED bulb on the light source body to enhance the thermal conductivity. The inner surface of the hole can be directly made into an optical reflective surface, or a light reflecting surface can be placed to directly guide the LED light to the outside; The light board is placed on the permanent fixing plate, and is tightly locked with the permanent fixing plate by a cover plate and a waterproof pressing material and a fixing screw to achieve a weatherproof sealing (4); the circuit board f surface and the light heat conducting fixed seat with heat dissipation function Tight phase #, in which it is locked by waterproofing material to achieve weatherproof sealing; the light module can also be tightly joined to the lampshade, so that the heat of the LED can be dissipated to the air via the circuit board, the heat conducting seat and the lampshade In this way, the three functions of heat dissipation, optics and weather resistance can be integrated into one to ensure the permanent tightness (four) contact between the heat conduction seat and the circuit board, and enhance the heat dissipation function to ensure the production. Reliability and lifetime, and to provide learning efficiency and weather resistance, especially [Embodiment invention is a high luminance-based light-emitting diode (LED) lighting Tong. |
置與製程（如第-至四A、B圖中所…主要係由；：A 之發光模組所組成，包括有： A 一導熱固定座（10)，用來將發光二極體（LED)光 1255321 源月』疋，並將LED之熱量散至空氣中，其散熱功能可利 用搭載傳統散熱鰭片或熱管之設計來達成，也可如圖五所 不、。口 k罩（40)，將LED之熱量經電路板與導熱固定 座傳至燈罩，由燈罩散至空氣中；導熱固定座（U) 一 側設置一電路板（1 1 ); 一用於焊接LED製程的焊接固定板（2〇)，並上設 置數個LED燈泡孔（21)，各通燈泡孔（2ι)之^ 設有焊接孔（22)，於焊接固定板（20)的四週邊分 =固定螺絲孔（23)，可藉螺絲（231)穿入固 疋螺，，糸孔（2 3 )而螺合於導熱固定座（工〇 )或任 定座上； m㈣燈泡（24)，可分別與各led燈泡孔（ 2 1)對應’LED燈泡（24)之電極（25)( ㈣於電路板（11)上的電路，可藉焊搶（27)穿過 焊接孔（2 2 )並將各電極（2 5 ) ( 2 β彳p ° 柘、zb)(26)焊接於電路 定^固定，當完成谭接作業之後，即可將焊接固 疋板（2 0 )、螺絲（2 3 1 )等取下。 ^發=主要針# LED燈泡的焊接與永久緊密需求，分 H知接固定板（20)與一永久固定板 3固定板（20) ’係用來將LED燈泡（24)定 拆除妾點的夹治具，以進行焊接之用，於焊接完成後即 其係針對不同的燈泡排列設計來設計焊接固定板（2 ’利用機械方式與電路板（11)固定與定位（如第 1255321 一圖中所示）； 於完成焊接後拆卸焊接固定板（2 〇 )，並更換為一 四A、四B圖中所示）， 各LED燈泡（2 4 )處分 )，其孔洞内面可直接製 永久固定板（3 0 )(如第三、 该永久固定板（3 0 )，相對於 別設置錐狀的LED燈泡孔（3 ] 成光學反光面（31)，或内套一層反光面，將LED發出 之燈光直接導引外射； 永久固定板（3 0 )的週邊分別設有固定螺絲孔（3 2)，於永久固定板（30) —側可依需要另設置一片狀 光反射板（3 3 )，其上設計有錐部光反射面（3 4)與 各LED燈泡孔（3 1 )對應，以便於光線射出之用；該光 反射板（33)上的錐狀光反射面（34)也可以設計成有助於導 引光線之任意曲面’將複數個LED發出之燈光直接導引外 射，達到提昇光學效率的目的。 一透光板（3 5 )’係以適當間隔距離設於永久固定 板（3 0 )的一側’防水迫緊材料（3 6 )分別設置於導 熱固定座（10)、電路板（11)、永久固定板（3〇 )與透光板（3 5 )之間； 具有孔的蓋板（3 7 ) ’蓋板（3 7 )設於透光板（ 3 5 ) 一侧，蓋板（3 7 ) —側設置一彈性墊圈（3 § ) ，固定螺絲（3 9 )可分別穿入彈性墊圈（3 8 )、蓋板 (3 7 )、永久固定板（3 〇 )的固定螺絲孔（3 2 )、 電路板（1 1)後，鎖固於導熱固定座（1 〇)上固定； 可連同透光板（3 5 )、蓋板（3 7 )、防水緊迫材 1255321 料（3 6 )與電路板（丄1 )緊密以固定螺絲（3 9 )予 以鎖緊（如第四A圖中所示），以達到防水功能，由於係 在LED發光模組上進行防水處理，因其面積範圍小，可以 有效防水與防潮； 為避免使用日久後因熱脹冷縮，導致螺絲鬆弛，減小 電路板與導熱固( 1 0)之間的接觸壓力，並在固定 螺絲（3 9 )上套設彈性墊圈（3 8 )，利用彈簧力來永 久施壓於電路板（1 1 )與導熱固定座（1 〇 )上； 永久固定板（3 〇 )的led燈泡孔（3 1 )，可設計 成光反射面，透過光反射面（31，34)或透光板（3 5) 的精密光學設計，可將LED光線直接反射外射，不需如習 用者另設光反射罩以及光學透鏡，可以大大提升發光效率 〇 如第五圖中所示，於本發明中的發光模組，係由光源體、永久固定 板（3 0)、透光板（3 5)、固定螺絲（3 9)、防水緊迫材料（3 Θ )與導熱固定座（1 Q )構成，緊密祕形成密閉體；絲體係由複數個 LED燈泡（2 4 )焊接於電路板（1 1 )上構成，電路板（1 1 )背面與 具散熱功能之導熱固定座（1 〇 )緊密相接，發光模組並結合一燈罩（4 0 )，使得LED之熱量可以經由電路板、導熱固定座與燈罩散至空氣中 ;如此，本發明之LED燈具可將散熱、光學與耐候三種功能整合為一， 以確保導熱固定座（1 〇 )與電路板（i 2 )的永久緊密接觸，增強其散 熱功能、確保產品可靠度與壽命，並提升光學效率與耐候性。 如第六至九圖中所示，大部份相同於第二、三圖中所 示的構造，其不同處在於：焊接固定板（2 0)與永久固 1255321 疋板（3 Ο )及光反射面（3 1，34)的形狀可以依需求分 別為具有不同的形狀設計，同樣，可以達到相同前述的創 作目的。 综上所述，本發明係利用前述的空間結構型態下，藉 由上述裝置的設置，主要可將散熱、光學與耐候三種功能 =合為一，以確保導熱固定座與電路板的永久緊密接觸， 增強其散熱功能，確保產品可靠度與壽命，並提升光學效 率與耐候性功效，同時也提出便捷經濟的燈具製法，顯見 本發明具有顯著而具體的功效增進，本發明已具備產業上 利用性、新穎性及進步性，並符合發明專利要件，爰依 提起申請。 / 【圖式簡單說明】 圖式部分 第一圖：係本發明於焊接製程的剖面圖。 第二圖··係本發明之焊接固定板的立體外觀圖。 第三圖：係本發明之永久固定板與光反射板的立體分 解圖。 第四A圖：係本發明於谭接組裝完成之「發光模組」 的剖面圖。 第四B圖·係本發明於焊接組裝完成t「發光模組」 的組裝前剖面圖。 第五圖·係本發明於組裝完成之LED燈具的剖面圖。 第/、圖·係本發明之另一焊接固定板的立體外觀圖。 第七圖·係本發明之另一永久固定板與光反射板的立 1255321 體分解圖。 第八圖：係本發明之再一焊接固定板的立體外觀圖。 第九圖：係本發明之再一永久固定板與光反射板的立 體分解圖。 第十圖：係習用高亮度LED燈泡的示意圖。 第十一圖：係習用燈具的示意圖。 【主要元件符號說明】 (1 0 )導熱固定座 (1 1 )電路板 (1 2 )防水密封材 (2 0 )焊接固定板 (2 1 ) LED燈泡孔 (2 2 )焊接孔 (2 3 )固定螺絲孔 (2 3 1 )螺絲 (2 4 ) LED 燈泡 (2 5 )電極 (2 6 )電極 (2 7 )焊槍 (3 0 )永久固定板 (3 1 ) LED燈泡孔 (3 2 )固定螺絲孔 (3 3 )光反射板 (3 4 )錐部光反射面；光反射曲面 1255321 (3 5 )透光板 (3 6 )防水迫緊材料 (3 7 )蓋板 (3 8 )彈性墊圈 (3 9 )固定螺絲 (4 0 )燈罩，散熱罩 (6 0 )導熱面 (61)電極 (6 2 )電極 (6 3 ) LED燈泡底座 (7 0 ) LED 燈泡 (7 1 )光反射罩 (7 2 )光學透鏡The set and the process (such as the first to the fourth, A, B, ... are mainly composed of: A's light-emitting module, including: A a heat-conducting mount (10) for the light-emitting diode (LED) ) Light 1255321 source month 疋, and the heat of the LED is dispersed into the air, its heat dissipation function can be achieved by using the design of the traditional heat sink fins or heat pipes, or as shown in Figure 5. The mouth k cover (40), Passing the heat of the LED to the lamp cover through the circuit board and the heat-conducting fixing seat, and dispersing the lamp cover into the air; a circuit board (1 1 ) is disposed on one side of the heat-conducting fixing seat (U); and a welding fixing plate for soldering the LED process ( 2〇), and set several LED bulb holes (21), each of the bulb holes (2ι) ^ is provided with a welding hole (22), and the four peripheral portions of the welding fixing plate (20) = fixing screw holes (23 ), can be screwed into the solid snail by screw (231), screwed into the heat-conducting fixed seat (worker) or any seat; m (four) bulb (24) can be separately associated with each led bulb The hole (2 1) corresponds to the electrode (25) of the LED bulb (24) ((4) the circuit on the circuit board (11), which can be soldered (27) through the soldering hole (2 2 ) and each The electrode (2 5 ) ( 2 β彳p ° 柘, zb) (26) is soldered to the circuit and fixed. When the tan work is completed, the welded solid plate (20) and the screw (2 3 1) can be welded. Wait for the removal. ^ Fa = main needle # LED bulb welding and permanent close demand, sub-H known fixed plate (20) and a permanent fixed plate 3 fixed plate (20) ' is used to set the LED bulb (24) Remove the clamps of the defects for welding purposes. After the welding is completed, they design the welded fixed plates for different lamp arrangement designs (2 'fixed and positioned by mechanical means and circuit board (11) (eg 1255321 shown in the figure); After the welding is completed, the welding fixing plate (2 〇) is removed and replaced with one of the four A and four B drawings), each LED bulb (2 4) is disposed, and the inner surface of the hole can be Directly making a permanent fixing plate (30) (such as the third, the permanent fixing plate (30), with respect to the cone-shaped LED bulb hole (3) as an optical reflective surface (31), or a layer of reflective surface Directly directing the light emitted by the LED to the outside; the periphery of the permanent fixing plate (30) is provided with a fixing screw hole (3 2), respectively Long-term fixing plate (30) - side can be further provided with a piece of light reflecting plate (3 3 ), which is designed with a cone-shaped light reflecting surface (3 4) corresponding to each LED bulb hole (3 1 ), so as to facilitate For the light to be emitted; the tapered light reflecting surface (34) on the light reflecting plate (33) can also be designed to help guide any surface of the light to directly direct the light emitted by the plurality of LEDs. For the purpose of improving optical efficiency. A light-transmitting plate (3 5 ) is disposed on the side of the permanent fixing plate (30) at an appropriate spacing. The waterproof pressing material (3 6 ) is respectively disposed on the heat-conducting fixing seat (10). , between the circuit board (11), the permanent fixing plate (3〇) and the light transmitting plate (3 5 ); the cover plate with holes (3 7 ) 'the cover plate (3 7 ) is disposed on the light transmitting plate (3 5 ) On one side, the cover plate (3 7 ) is provided with a spring washer (3 § ) on the side, and the fixing screws (3 9 ) can be respectively inserted into the elastic washer (3 8 ), the cover plate (37), and the permanent fixing plate (3 〇) ) Fixing screw hole (3 2 ), circuit board (1 1), fixed to the heat-conducting fixed seat (1 〇); can be combined with light-transmitting plate (3 5 ), cover plate (37), waterproof and tight Material 1255321 material (3 6 ) and the circuit board (丄1) are tightly locked with fixing screws (3 9) (as shown in Figure 4A) to achieve waterproof function, due to the LED lighting module Waterproof treatment, because of its small area, can be effectively waterproof and moisture-proof; in order to avoid the use of thermal expansion and contraction after a long time, the screw is loose, reducing the contact pressure between the circuit board and the heat-conducting solid (10), and The fixing screw (3 9 ) is sleeved with a spring washer (3 8 ), and the spring force is used to permanently apply pressure on the circuit board (1 1 ) and the heat-conducting fixing seat (1 〇); the permanent fixing plate (3 〇) led bulb The hole (3 1 ) can be designed as a light reflecting surface, and the precision optical design of the light reflecting surface (31, 34) or the light transmitting plate (3 5) can directly reflect the LED light, and does not need to be used as a conventional one. The light reflecting cover and the optical lens can greatly improve the luminous efficiency. As shown in the fifth figure, the light emitting module in the present invention is composed of a light source body, a permanent fixing plate (30), and a light transmitting plate (3 5 ), fixing screws (3 9), waterproof pressing material (3 Θ) and heat-conducting fixing seat (1 Q), Closely forming a closed body; the wire system is composed of a plurality of LED bulbs (2 4 ) soldered on the circuit board (1 1 ), and the back surface of the circuit board (1 1 ) is closely connected with the heat-dissipating heat-dissipating seat (1 〇) with heat dissipation function. The light-emitting module is combined with a lamp cover (40), so that the heat of the LED can be dispersed into the air through the circuit board, the heat-conducting fixing seat and the lamp cover; thus, the LED lamp of the invention can integrate the three functions of heat dissipation, optical and weather resistance into First, to ensure permanent close contact between the thermal pad (1 〇) and the circuit board (i 2 ), enhance its heat dissipation function, ensure product reliability and life, and improve optical efficiency and weather resistance. As shown in the sixth to ninth figures, most of the configurations are the same as those shown in the second and third figures, with the difference that the welded fixing plate (20) and the permanent solid 1255321 raft (3 Ο) and light The shape of the reflecting surface (3, 34) can be designed with different shapes according to requirements, and the same as the above-mentioned creative purpose can be achieved. In summary, the present invention utilizes the aforementioned spatial structure type, and by the arrangement of the above device, the three functions of heat dissipation, optical and weather resistance can be mainly combined to ensure the permanent closeness of the heat conduction fixing seat and the circuit board. Contact, enhance its heat dissipation function, ensure product reliability and longevity, and improve optical efficiency and weather resistance. At the same time, it also proposes a convenient and economical lamp manufacturing method. It is obvious that the present invention has remarkable and specific power enhancement, and the invention has industrial utilization. Sexuality, novelty and progress, and in line with the invention patent requirements, the application is filed. / [Simplified description of the drawings] The first part of the drawing is a sectional view of the welding process of the present invention. Fig. 2 is a perspective view of the welded fixing plate of the present invention. Fig. 3 is a perspective exploded view of the permanent fixing plate and the light reflecting plate of the present invention. Figure 4A is a cross-sectional view of the "lighting module" assembled in the present invention. Fig. 4B is a front cross-sectional view showing the assembly of the "light-emitting module" in the welding assembly of the present invention. Fig. 5 is a cross-sectional view of the assembled LED lamp of the present invention. Fig. 3 is a perspective view showing another welded fixing plate of the present invention. Fig. 7 is an exploded view of the standing body 1255321 of another permanent fixing plate and a light reflecting plate of the present invention. Figure 8 is a perspective view of a further welded fixing plate of the present invention. Fig. 9 is a perspective exploded view showing still another permanent fixing plate and a light reflecting plate of the present invention. Figure 10: Schematic diagram of a high-brightness LED bulb. Figure 11: Schematic diagram of a conventional lamp. [Main component symbol description] (1 0) Thermally fixed holder (1 1 ) Circuit board (1 2 ) Waterproof sealing material (2 0 ) Soldering fixing plate (2 1 ) LED bulb hole (2 2 ) Welding hole (2 3 ) Fixing screw hole (2 3 1 ) screw (2 4 ) LED bulb (2 5 ) electrode (2 6 ) electrode (2 7 ) welding torch (3 0 ) permanent fixing plate (3 1 ) LED bulb hole (3 2 ) fixing screw Hole (3 3 ) light reflection plate (3 4 ) cone light reflection surface; light reflection surface 1255321 (3 5 ) light transmission plate (3 6 ) waterproof pressing material (3 7 ) cover plate (3 8 ) elastic gasket ( 3 9) Fixing screw (4 0 ) lamp cover, heat sink cover (60) heat transfer surface (61) electrode (6 2) electrode (6 3 ) LED bulb base (7 0 ) LED bulb (7 1 ) light reflector (7 2) Optical lens
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