河北安裝LED線條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【買產(chǎn)品】-上?？谄蚴称酚邢薰?/title><meta name="description" content="LED洗墻燈和LED線條燈在外觀上有過多類似的地方，區(qū)別在于有沒有安裝支架上，此外還有一些微小的區(qū)別，因為功率大小區(qū)別。運用效果：LED洗墻燈是讓燈光效果像水一樣洗過墻壁。這兒效果是說LED洗墻燈把燈光效果打在墻壁上，跟投射燈運用方法類似，"><meta name="keywords" content="河北安裝LED線條燈,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" content="no-transform" /> <meta 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href="http://www.cdcfah.com/cp/third-zmytdj_leddengju/">LED燈具</a>?河北安裝LED線條燈歡迎咨詢上海先盛照明電器供應(yīng)</p><div id="yaw8ems" class="leftbox clearfix"><h1>河北安裝LED線條燈歡迎咨詢上海先盛照明電器供應(yīng)</h1><div id="aouaea0" class="proBig"><div id="aeuaokg" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/WaterMark/UploadFile/shxiansheng/637402596102603861/8110134.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="6e8k0uq" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/WaterMark/UploadFile/shxiansheng/637402596102603861/8110134.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="aociw0o" class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價格要求：</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>河北安裝LED線條燈,LED</p><p><span>***更新：</span>2021-01-07 09:07:29</p><p><span id="click" >瀏覽次數(shù)：0次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="gcyuy8k" 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: </span>021-54169416</p><p><span>地址: </span>陶干路1199號</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="2w82y28" class="page-proshow02"><p class="title">詳細說明</p><div id="oeko0oa" class="box"><p><p>LED洗墻燈和LED線條燈在外觀上有過多類似的地方，區(qū)別在于有沒有安裝支架上，此外還有一些微小的區(qū)別，因為功率大小區(qū)別。運用效果：LED洗墻燈是讓燈光效果像水一樣洗過墻壁。這兒效果是說LED洗墻燈把燈光效果打在墻壁上，跟投射燈運用方法類似，但效果更顯溫和。而LED線條燈則大部分用于做建筑輪廓用，或是制成數(shù)碼管屏效果，自然也將會裝在墻腳旁邊上讓燈光效果照射在墻壁上，但LED洗墻燈更靈便。規(guī)格型號和主要參數(shù)：LED洗墻燈光源大部分采用為大功率光源，LED線條燈采用小功率光源。LED洗墻燈要看照射高度，一般與墻面還有一定的距離，只有大功率LED洗墻燈才更勝任。而LED線條燈做樓體輪廓的，小功率就可以。LED洗墻燈的散熱防水難度很大，要有排水功能和對流設(shè)計，LED洗墻燈生產(chǎn)過程中，先要用洗墻燈灌膠機進行灌膠處理，接著裝上玻璃，在打好堵頭。實現(xiàn)結(jié)構(gòu)性防水。產(chǎn)品外觀：LED洗墻燈基本都是帶透鏡的，透鏡的品種也有很多，不同度數(shù)透鏡照射的光效不一樣。很直觀一點是LED洗墻燈有支架，能自由調(diào)節(jié)角度，符合其本身的應(yīng)用要求。還有尺寸上，LED洗墻燈外觀有很大尺寸的，而LED線條燈外觀很少有大尺寸，都是比較小的尺寸。上海先盛照明電器有限公司供應(yīng)led線條燈，河北安裝LED線條燈，河北安裝LED線條燈。LED，河北安裝LED線條燈，就選上海先盛照明電器有限公司，讓您滿意，歡迎您的來電！河北安裝LED線條燈</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="河北安裝LED線條燈,LED" src="https://tyunfile.71360.com/WaterMark/UploadFile/shxiansheng/637402596102603861/8110134.png"></div><p> 而LED基板與PCB之間的熱阻一般是℃/w（鋁基板的熱阻一般小于℃/w),那么Tj與PCB板之間溫差為8+℃。燈具散熱材料，一般壓鑄鋁（鋁合金的熱阻一般*為℃/w)，那么燈殼到LEDPN結(jié)之間的溫差約為：（8+）=℃?，F(xiàn)在問題是：燈殼Tscase與燈周邊環(huán)境溫度Ta的溫度差多少？這是由燈具的系統(tǒng)熱阻決定的。加入用于熱失散的燈殼接觸環(huán)境空間的面積為A，此面積大小就決定了兩者之間的溫差。當(dāng)A趨于無窮大時，燈殼與環(huán)境等溫。這是做不到的。日本西鐵城等公司，測算出散熱器面積與Tj的關(guān)系曲線。一個，要使Tj從100℃下降到80℃，散熱器與空氣接觸面積要增加60平方里面以上，由此可估算：60cm2/；每增加1W電功率的LED，若用60平方厘米以上的散熱器時，其Tj結(jié)溫將下降20℃。計算：那么用約用℃。那么，燈具系統(tǒng)熱阻Rthsystem=20/℃/w；于是對燈具施加，在Ta=25℃時，燈殼上的溫度應(yīng)該是：Tscase=25℃+℃；此時，通過前面的計算，我們可以知道LEDPN結(jié)溫是：Tj=45+℃；PN結(jié)溫Tj比起光效值100lm/WTj=25℃的時候，高了（）=℃；也就是一個100lm的LED光通量較Tj=25℃的時候要低：；100個LED等于比Tj=25℃時候，低；由此可以得知燈具的熱效率=（1-735/10000)=。所以：三個部分疊加后。廣東什么是LED供應(yīng)商上海先盛照明電器有限公司是一家專業(yè)提供LED的公司，歡迎新老客戶來電！</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="河北安裝LED線條燈,LED" src="https://tyunfile.71360.com/WaterMark/UploadFile/shxiansheng/637402597580084318/2407059.png"></div><p style="text-indent:25px">可實現(xiàn)平滑和幾乎線性的燈功率調(diào)節(jié)控制特性?？傻玫降凸β式鉀Q方案，半橋逆變器的供電電壓可以選得很低（如5%~100%的調(diào)光范圍對應(yīng)30~120V），這樣可采用低電壓電容和低耐電壓值的功率MOSFET。由于半橋逆變器工作在恒頻狀態(tài)，所以可采用簡單的ACDC控制即可<span style="display:none;"></span>實現(xiàn)調(diào)光。11燈電流近似和DC變換器的直流供電電壓成正比，調(diào)光幾乎和逆變器的輸出電壓成正比，調(diào)光特性曲線?？蓪崿F(xiàn)平滑和幾乎線性的燈功率調(diào)節(jié)控制特性?？傻玫降凸β式鉀Q方案，半橋逆變器的供電電壓可以選得很低（如5%~100%的調(diào)光范圍對應(yīng)30~120V），這樣可采用低電壓電容和低耐電壓值的功率MOSFET。由于半橋逆變器工作在恒頻狀態(tài)，所以可采用簡單的ACDC控制即可實現(xiàn)調(diào)光。11燈電流近似和DC變換器的直流供電電壓成正比，調(diào)光幾乎和逆變器的輸出電壓成正比，調(diào)光特性曲線。<span style="display:none;"><span style="display:none;"><span style="display:none;"></span></span></span></p><p>應(yīng)用范圍比較廣，可以在線性燈具，燈帶，筒燈，面光源等全系列的燈具應(yīng)用上。這些燈珠封裝形式的功率，一般設(shè)計為，，，不過后來因為晶片技術(shù)和散熱支架（PCT，紅銅）等，功率可以上升到1W,甚至2W?，F(xiàn)在甚至出現(xiàn)有5050，7070等SMD，功率能到3W以上。大功率表面貼裝性第三種燈珠也是表貼型，它與小功率表貼在本質(zhì)上很類似，只不過大功率、體積都大一點;在細微結(jié)構(gòu)上，多了一個透鏡，可以將光線更好地匯聚在一起。這些類型功率都偏大，一般屬于國外大芯片公司壟斷了技術(shù)，一般封裝形式有：大功率芯片，3535；電壓一般還是3V-5V，額定電流可以從300mA-1500mA之間；集成封裝性（COB)它是將很多燈珠芯片封裝在同一塊板上，晶片是通過一定形式的串并數(shù)，用金線連接的。一般的串并數(shù)都是10串，或者12串的設(shè)計，因為都是設(shè)計在特低安全SELV42V以下。一般基板材料有：鋁基板，陶瓷板；例如CREE的COB一般是陶瓷基板；注意：安裝時候，不能用手或者其他工具觸摸，按壓熒光粉表面。LED，就選上海先盛照明電器有限公司，用戶的信賴之選，有需要可以聯(lián)系我司哦！</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="河北安裝LED線條燈,LED" src="https://tyunfile.71360.com/WaterMark/UploadFile/shxiansheng/637402596215064811/961719.png"></div><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），是評價電光源用電效率主要的技術(shù)參數(shù)。分為兩個概念：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，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℃，輸出光通量下降。以100lm的燈珠計算，Tj=80℃的時候，實際光通量是，降低了。LED燈具光效：LEDLuminareLED燈具，一般包含以下幾部分：LED光源/燈珠，驅(qū)動器，配光器件，散熱裝置和外殼。這四個部分除了光源之外，其余三個部分都是對光效有減弱效果的。計算：一般計算，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。其他的三個部分：LED驅(qū)動器：LED驅(qū)動電源的電源效率（轉(zhuǎn)換效率），因為驅(qū)動電源一般是AC/DC的電源，自身需要消耗電功率。對于驅(qū)動器來說，輸出功率與輸入功率的比值，就是電源效率。一般隔離驅(qū)動的效率在82-88%左右，越接近設(shè)計大值，效率越高。一般非隔離驅(qū)動的效率在90-93%左右。上海先盛照明電器有限公司為您提供LED，有需要可以聯(lián)系我司哦！河南庫存LED支架燈</p><p style="text-indent:25px">上海先盛照明電器有限公司致力于提供LED，歡迎您的來電哦！河北安裝LED線條燈</p><p> 等于單位時間內(nèi)某一波段的輻射能量和該波段的相對視見率的乘積。由于人眼對不同波長光的相對視見率不同，所以不同波長光的輻射功率相等時，其光通量并不相等。光通量的單位為“流明”。光通量通常用Φ來表示，在理論上其單位相當(dāng)于電學(xué)單位瓦特，因視覺對此尚與光色有關(guān)。所以依標(biāo)準光源及正常視力度量單位采用“流明”，符號：lm。由于人眼對不同波長的光的視見函數(shù)不同，所以不同的波長的光的輻射功率即使相等，其光通量并不相等。例如當(dāng)波長為5500的綠光與波長為6500?的紅光輻射功率相同時，前者的光通量為后者的10倍。光通量是每單位時間到達、離開或通過曲面的光強度；光通量是燈泡發(fā)出亮光的比率。簡單來說：是衡量光源輸出光多少的指標(biāo)。一個普通的燈泡，它輸出的所有光全部算在一起后就是這個燈泡光通量的具體數(shù)值?？梢园阉斫鉃椋阂粋€噴頭噴出了水，用一個氣球?qū)姵龅拿恳坏嗡佳b在里面，有多少裝多少，這就是光通量的含義。照度：照度的單位是勒克斯，符號表示為lx。它的定義是落在單位面積上光通量的大小，換而言之，也就是1平方米得到1流明的光叫做1個勒克斯。lx=lm/m^2同樣也可以用水來作一個比方：噴頭會噴很多水出來。河北安裝LED線條燈</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2742665.html</p></div></div></div></div></div><div id="quimysu" class="page-right twoColRt"><div id="ggmi2yu" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="wqyeae0" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img 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