河南防水LED三防燈歡迎咨詢上海先盛照明電器供應(yīng)-b2b網(wǎng)站_b2b電子商務(wù)平臺(tái)【買產(chǎn)品】-上?？谄蚴称酚邢薰?/title><meta name="description" content="led是電光源發(fā)出的光通量和它用電功率之比，單位是流明/瓦（lm/W），是評(píng)價(jià)電光源用電效率主要的技術(shù)參數(shù)。分為兩個(gè)概念：LED器件光效：LEDSource一般LED生產(chǎn)企業(yè)給出的器件光通量大多是Tj（結(jié)溫）=25℃時(shí)，給出的光效值。一般都"><meta name="keywords" content="河南防水LED三防燈,LED"><link rel="canonical" href="http://www.cdcfah.com/"/><meta name="applicable-device" content="pc"><link rel="shortcut icon" href="/static/new_net_01/images/favicon.ico"><link rel="stylesheet" href="/static/new_net_01/css/slick.css" /><link rel="stylesheet" href="/static/new_net_01/css/addnew.css"><link rel="stylesheet" href="/static/new_net_01/css/sidenav.css"><link rel="stylesheet" href="/static/new_net_01/css/style.css" /><link rel="stylesheet" href="/static/new_net_01/css/tab.css"><link rel="stylesheet" href="/static/new_net_01/css/404.css"> <meta name="baidu-site-verification" content="OBVzrC9aaQ" /> <meta http-equiv="Cache-Control" 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href="http://www.cdcfah.com/cp/first-_zmgy/">照明工業(yè)</a>?<a href="http://www.cdcfah.com/cp/second-zmgy_zmytdj/">專門用途燈具</a>?<a href="http://www.cdcfah.com/cp/third-zmytdj_leddengju/">LED燈具</a>?河南防水LED三防燈歡迎咨詢上海先盛照明電器供應(yīng)</p><div id="qpwdpls" class="leftbox clearfix"><h1>河南防水LED三防燈歡迎咨詢上海先盛照明電器供應(yīng)</h1><div id="wgsugsz" class="proBig"><div id="8tfw8kf" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/WaterMark/UploadFile/shxiansheng/637402596358599967/471457.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="vp7nvwi" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/WaterMark/UploadFile/shxiansheng/637402596358599967/471457.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="3zvs9se" class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價(jià)格要求：</span>面議</p><p><span>所在地：</span>上海市</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>河南防水LED三防燈,LED</p><p><span>***更新：</span>2021-01-26 03:07:06</p><p><span id="click" >瀏覽次數(shù)：1次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="a8p3d82" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">上海先盛照明電器有限公司</a></p><p><span>聯(lián)系人：</span>顧勇軍</p><p><span>郵箱: </span>522366548@qq.com</p><p><span>電話: </span>13301861712</p><p><span>傳真: </span>021_</p><p><span>網(wǎng)址: </span></p><p><span>手機(jī): </span>021-54169416</p><p><span>地址: </span>陶干路1199號(hào)</p><p>[當(dāng)前離線] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="bkrtx2o" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="yipwaxe" class="box"><p><p>led是電光源發(fā)出的光通量和它用電功率之比，單位是流明/瓦（lm/W），是評(píng)價(jià)電光源用電效率主要的技術(shù)參數(shù)。分為兩個(gè)概念：LED器件光效：LEDSource一般LED生產(chǎn)企業(yè)給出的器件光通量大多是Tj（結(jié)溫）=25℃時(shí)，給出的光效值。一般都有130-150lm/W,甚至到180lm/W。而在同樣功率下，LED輸出光通量根據(jù)溫度升高而降低，大約LED的PN結(jié)溫度Tj每升高1℃，河南防水LED三防燈，輸出光通量下降。以100lm的燈珠計(jì)算，Tj=80℃的時(shí)候，實(shí)際光通量是，降低了。LED燈具光效：LEDLuminareLED燈具，河南防水LED三防燈，一般包含以下幾部分：LED光源/燈珠，驅(qū)動(dòng)器，配光器件，散熱裝置和外殼。這四個(gè)部分除了光源之外，其余三個(gè)部分都是對(duì)光效有減弱效果的。計(jì)算：一般計(jì)算，采用不同燈珠排列的總LED器件光效或者流明，是可以疊加的。如：100個(gè)100lm/W的光源，加上100W電功率，輸出的總光通量為10000lm。其他的三個(gè)部分：LED驅(qū)動(dòng)器：LED驅(qū)動(dòng)電源的電源效率（轉(zhuǎn)換效率），因?yàn)轵?qū)動(dòng)電源一般是AC/DC的電源，自身需要消耗電功率。對(duì)于驅(qū)動(dòng)器來說，輸出功率與輸入功率的比值，就是電源效率。一般隔離驅(qū)動(dòng)的效率在82-88%左右，河南防水LED三防燈，越接近設(shè)計(jì)大值，效率越高。一般非隔離驅(qū)動(dòng)的效率在90-93%左右。上海先盛照明電器有限公司是一家專業(yè)提供LED的公司，有需求可以來電咨詢！河南防水LED三防燈</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="河南防水LED三防燈,LED" src="https://tyunfile.71360.com/WaterMark/UploadFile/shxiansheng/637402596358599967/471457.png"></div><p style="text-indent:25px">平角的LED燈珠直插可以做到90-110度。角度越小，聚光性越好，光線越集中，光線射得更遠(yuǎn)。缺點(diǎn)是照射范圍有限。LED燈珠貼片，一般角度都是平面120度，因?yàn)榻嵌却螅l(fā)光均勻，通常在照常照明產(chǎn)品上大量使用。比如，日光燈管，球泡燈，面板燈，很多照明產(chǎn)品上用的都是SMDLED貼片燈珠。LED燈珠貼片可以上高速SMD，過回流焊的溫度可以達(dá)到260度，重要的是LED燈珠貼片可以批量上高速貼片燈，批量工業(yè)化生產(chǎn)，照明產(chǎn)品上的話，省人工，機(jī)器貼裝，效率更高，焊接不良率更低。而LED燈珠（LED燈珠直插式）因?yàn)榻嵌刃?，聚光性好，但是因?yàn)橹挥袃蓚€(gè)引腳散熱，所以，一般只能過波峰焊。河南庫存LED咨詢報(bào)價(jià)上海先盛照明電器有限公司為您提供LED，有想法的可以來電咨詢！</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="河南防水LED三防燈,LED" src="https://tyunfile.71360.com/WaterMark/UploadFile/shxiansheng/637402596403561254/1671752.png"></div><p>我們可以在噴頭下方用一個(gè)盆接住噴頭噴出的水。而這個(gè)盆有固定的面積，它可以接到多少水，就著這個(gè)位置所得到的照度。光強(qiáng)：光強(qiáng)是發(fā)光強(qiáng)度的簡稱。表示光源在單位立體角內(nèi)光通量的多少。發(fā)光強(qiáng)度是指光源在指定方向上的單位立體角內(nèi)發(fā)出的光通量，也就是說光源向空間某一方向輻射的光通密度。符號(hào)用I表示，國際單位是candela（坎德拉）簡寫cd。光強(qiáng)了光源在不同方向上的輻射能力。通俗的說發(fā)光強(qiáng)度就是光源所發(fā)出的光的強(qiáng)弱程度。亮度：亮度是指發(fā)光體（反光體）表面發(fā)光（反光）強(qiáng)弱的物理量。人眼從一個(gè)方向觀察光源，在這個(gè)方向上的光強(qiáng)與人眼所“見到”的光源面積之比，定義為該光源單位的亮度，即單位投影面積上的發(fā)光強(qiáng)度。亮度用符號(hào)L表示，亮度的單位是坎德拉/平方米（cd/m2）。光源的明亮程度與發(fā)光體表面積有關(guān)系，同樣的光強(qiáng)的情況下，發(fā)光面積大，則暗，反之則亮。亮度與發(fā)光面的方向也有關(guān)系，同一發(fā)光面在不同的方向上其亮度值也是不同的，通常是按垂直于視線的方向進(jìn)行計(jì)量的。相關(guān)閱讀光通量是啥意思？</p><p>對(duì)于城市樓體亮化，不僅照明功能方面要設(shè)計(jì)合理，還要體現(xiàn)藝術(shù)感，讓城市樓體變得更亮更美。按照城市的整體亮化規(guī)劃，樓體亮化要與城市建筑物的功能特點(diǎn)相適應(yīng)。對(duì)于不同功能的街道，我們需要根據(jù)周圍的建筑物和環(huán)境，設(shè)計(jì)不同的燈光照明，制造出不同的氛圍、風(fēng)格和亮度要求。把戶外樓體亮化的工作與建筑工程設(shè)計(jì)和施工相配合，能夠同步進(jìn)行，共同促進(jìn)。在夜景亮化工程、老建筑物的修繕、建筑物外墻等等方面，可以互相配合進(jìn)行。城市環(huán)境景觀的構(gòu)成包括自然物和人工建筑物，有的注重實(shí)用功能，有的是為了裝飾，突出觀賞的價(jià)值?，F(xiàn)在，能夠達(dá)到實(shí)用性和美觀性并重。對(duì)于戶外樓體亮化，我們要進(jìn)行科學(xué)管理，保證經(jīng)濟(jì)實(shí)用，達(dá)到美的效果。同時(shí)，一定要因地制宜，把有限的資源利用好，讓城市夜景更亮更美。上海先盛照明電器有限公司是一家專業(yè)提供LED的公司，有想法的可以來電咨詢！</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="河南防水LED三防燈,LED" src="https://tyunfile.71360.com/WaterMark/UploadFile/shxiansheng/637402595740894904/3055330.png"></div><p>LED產(chǎn)業(yè)鏈大致可以分為五個(gè)部分：一是原材料；二是LED上游產(chǎn)業(yè)；（主要包括外延材料和芯片制造）三是LED中游產(chǎn)業(yè)；（主要包括各種LED器件和封裝）四是LED下游產(chǎn)業(yè)；（主要包括各種LED應(yīng)用產(chǎn)品的產(chǎn)業(yè)）五是測(cè)試儀器和生產(chǎn)設(shè)備。一、原材料方面：LED發(fā)光材料和器件的原材料包括襯底材料砷化鎵單晶、氮化鋁單晶等。他們大部分是Ⅲ-Ⅴ族化合物半導(dǎo)體單晶，生產(chǎn)工藝比較成熟，已有開啟即用的拋光性供貨。其他原材料還有金屬高純鎵、高純金屬有機(jī)物源，如三甲基鎵、三乙基鎵、s三甲基鋁、高純氣體氨、氮?dú)涞?。原材料的純度一般都要?N（即）以上，封裝材料有環(huán)氧樹脂、ABS、PC、PPD等。二、上游產(chǎn)業(yè)：以LED芯片為主，白光、紫光、紅光等。三、中游產(chǎn)業(yè)：以LED燈珠光源等封裝制造為主，貼片LED、插件LED、各種大小功率LED光源，如2835、5730、4014、3528、3030、5050等。四、下游產(chǎn)業(yè)：以各類LED燈具為主，室內(nèi)燈具如吸頂燈、筒燈、T5T8燈管、面板燈等；戶外燈具如LED路燈、埋地?zé)舻?。五、測(cè)試儀器和生產(chǎn)設(shè)備方面：外延材料的測(cè)試儀器主要有X射線雙晶衍射儀、熒光譜儀、盧瑟福背散射溝道譜儀等。芯片、器件的測(cè)試儀器主要有LED光電特性測(cè)試儀、光譜分析儀等。LED，就選上海先盛照明電器有限公司，讓您滿意，歡迎新老客戶來電！河南庫存LED咨詢報(bào)價(jià)</p><p style="text-indent:25px">LED，就選上海先盛照明電器有限公司，用戶的信賴之選，有想法的不要錯(cuò)過哦！河南防水LED三防燈</p><p style="text-indent:25px">LED的燈珠使用，需要留有余量，一般需要比額定電流低20%左右。LED燈珠的評(píng)價(jià)一般按光效來計(jì)算，光通量/功率=光效，越高越貴?，F(xiàn)在的LED光效一般都能達(dá)到100-150lm/W,甚至達(dá)到190lm/W。LED燈珠的光效，其實(shí)是跟驅(qū)動(dòng)電流一定程度上成反比，意思是驅(qū)動(dòng)電流約靠近額定電流，其實(shí)光效是越低的。一般燈珠廠標(biāo)注的高光效，都是在比較低的額定電流下測(cè)定的。燈珠色溫.，相關(guān)色溫ColorTemperature:色溫是照明光學(xué)中用于定義光源顏色的一個(gè)物理量。即把某個(gè)黑體加熱到一個(gè)溫度，其發(fā)射的光的顏色與某個(gè)光源所發(fā)射的光的顏色相同時(shí)。河南防水LED三防燈</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/3011870.html</p></div></div></div></div></div><div id="u2onpb2" class="page-right twoColRt"><div id="7xtardh" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="cb78nbs" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img src="http://tyunfile.71360.com/UpLoadFile/2019/11/1/14/637082168864691056_lgpj_5374157.jpg" alt="福建ZF配件哪家強(qiáng) 信息推薦自業(yè)物資供應(yīng)" class="vcenter" 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