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<meta http-equiv="Cache-Control" content="no-siteapp" /> <script>var V_PATH="/";window.onerror=function(){ return true; };</script> </head><body> <h1><a href="http://www.cdcfah.com/">六月丁香婷婷亚洲中文字幕,欧美精品高清一区二区蜜芽,尤物92午夜福利视频,精品视频一区二区三区在线观看</a></h1> <div style="position:fixed;left:-9000px;top:-9000px;"><object id="qgqbi"></object><delect id="qgqbi"><sub id="qgqbi"><dl id="qgqbi"></dl></sub></delect><track id="qgqbi"></track><tr id="qgqbi"></tr><video id="qgqbi"></video><xmp id="qgqbi"><span id="qgqbi"></span></xmp><span id="qgqbi"></span><strong id="qgqbi"><em id="qgqbi"><sup id="qgqbi"><progress id="qgqbi"></progress></sup></em></strong><dl id="qgqbi"><small id="qgqbi"></small></dl><wbr id="qgqbi"></wbr><noscript id="qgqbi"></noscript><tr id="qgqbi"></tr><track id="qgqbi"><dl id="qgqbi"></dl></track><label id="qgqbi"><em id="qgqbi"></em></label><tbody id="qgqbi"></tbody><blockquote id="qgqbi"></blockquote><dfn id="qgqbi"><center id="qgqbi"></center></dfn><sub id="qgqbi"></sub><u 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"index_show"><a href="http://www.cdcfah.com/zh/"><span>展會信息</span></a></li></ul></div></nav><section class="wrap clearfix"><section class="container clearfix tcPro"><section class="home-main container clearfix"><div id="ahtzvrx" class="twoCol"><div id="b8iz2qc" class="page-proshow clearfix"><p class="current"> 當(dāng)前位置:<a href="http://www.cdcfah.com/">首頁?<a href="http://www.cdcfah.com/cp/">產(chǎn)品供應(yīng)</a>?<a href="http://www.cdcfah.com/cp/first-_zmgy/">照明工業(yè)</a>?<a href="http://www.cdcfah.com/cp/second-zmgy_snzmdjeh/">室內(nèi)照明燈具</a>?<a href="http://www.cdcfah.com/cp/third-snzmdjeh_qtsndj/">其他室內(nèi)燈具</a>?天津家用LED**品牌真誠推薦江雅電子加工店供應(yīng)</p><div id="tq2jpvw" class="leftbox clearfix"><h1>天津家用LED**品牌真誠推薦江雅電子加工店供應(yīng)</h1><div id="ybpfrh3" class="proBig"><div id="2zkbizh" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/jiangya/637401030856343125/8042168.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="sa8e27y" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/jiangya/637401030856343125/8042168.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="jgppriy" 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>廣東省</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>天津家用LED**品牌,LED</p><p><span>***更新：</span>2020-11-30 06:22:14</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="jb3fokr" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">中山市橫欄鎮(zhèn)江雅電子加工店</a></p><p><span>聯(lián)系人：</span>單世樂</p><p><span>郵箱: </span>1139567934@qq.com</p><p><span>電話: </span>15207608275</p><p><span>傳真: </span>0760_</p><p><span>網(wǎng)址: </span>https://shop8at9822014t99.1688.com</p><p><span>手機(jī): </span>0760-88968373</p><p><span>地址: </span> 中山市橫欄鎮(zhèn)新茂工業(yè)區(qū)慶龍路7號四樓之一 </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="aiwsyk2" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="vypgxoa" class="box"><p><p style="text-indent:25px">LED五大原物料分別是指：晶片，支架，銀膠，金線，環(huán)氧樹脂。晶片的構(gòu)成：由金墊，P極，天津家用LED**品牌，N極，PN結(jié)，背金層構(gòu)成（雙pad晶片無背金層）。晶片是由P層半導(dǎo)體元素，N層半導(dǎo)體元素靠電子移動而重新排列組合成的PN結(jié)合體。也正是這種變化使晶片能夠處于一個相對穩(wěn)定的狀態(tài)。在晶片被一定的電壓施加正向電極時(shí)，正向P區(qū)的空穴則會源源不斷的游向N區(qū)，N區(qū)的電子則會相對于孔穴向P區(qū)運(yùn)動。在電子，空穴相對移動的同時(shí)，電子空穴互相結(jié)對，天津家用LED**品牌，天津家用LED**品牌，激發(fā)出光子，產(chǎn)生光能。LED對環(huán)境污染：無有害金屬汞。天津家用LED**品牌</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="天津家用LED**品牌,LED" src="https://tyunfile.71360.com/UploadFile/jiangya/637401030856343125/8042168.png"></div><p style="text-indent:25px">LED穿入配管導(dǎo)線的接頭應(yīng)設(shè)在接線盒內(nèi)，接頭搭接牢固，涮錫并用絕緣帶包纏應(yīng)均勻緊密。暗盒均應(yīng)該加裝螺接以保護(hù)線路。光纜的機(jī)設(shè)備端預(yù)留長度一般小于5-10米，視頻電纜到攝像機(jī)的預(yù)留長度不小于60CM-100CM。主要材料質(zhì)量要求：分體設(shè)備、器材的規(guī)格、型號應(yīng)符合設(shè)計(jì)要求及我國現(xiàn)行電器產(chǎn)品標(biāo)準(zhǔn)的有關(guān)規(guī)定。電源線：要根據(jù)我國標(biāo)準(zhǔn)，單個關(guān)線用標(biāo)準(zhǔn)1.5平方毫米線，主線用標(biāo)準(zhǔn)2.5平方毫米線；空調(diào)插座用4毫米平方線；背景音樂線：標(biāo)準(zhǔn)2×0.3平方毫米線；環(huán)繞音響線：標(biāo)準(zhǔn)100-300芯無氧銅；視頻線：不低于75-4標(biāo)準(zhǔn)；網(wǎng)絡(luò)線：超五類UTP雙絞線；有線電視線：75歐姆寬帶同軸電纜；防盜及其它控制線：RVV4×0.5平方毫米線；天津家用LED**品牌LED的控制模式有恒流和恒壓兩種，有多種調(diào)光方式，比如模擬調(diào)光和PWM調(diào)光。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="天津家用LED**品牌,LED" src="https://tyunfile.71360.com/UploadFile/jiangya/637401030748979907/4892324.png"></div><p style="text-indent:25px">現(xiàn)如今，隨著科技的發(fā)展，LED大屏幕顯示以它得得天獨(dú)厚的優(yōu)勢，較廣應(yīng)用于娛樂體育、金融專證券、交通車站、機(jī)關(guān)企屬業(yè)等各個場所，成為信息傳播、新聞發(fā)布、廣告宣傳較為常見的顯示媒體。信息顯現(xiàn)電子儀器相關(guān)電器的信息顯現(xiàn)、數(shù)碼顯現(xiàn)和各種顯現(xiàn)器，以及LED顯示屏，它的潛在價(jià)值是非常大的，這點(diǎn)是我們經(jīng)過調(diào)查研究了解的。交通訊號燈城市交通、高速公路、鐵路、機(jī)場、航海和江河航運(yùn)用的信號燈等。汽車用燈汽車內(nèi)外燈、轉(zhuǎn)向燈、剎車燈、霧燈、前照燈、車內(nèi)儀表顯現(xiàn)及照明等。</p><p style="text-indent:25px">LED表面平整度：顯示屏的表面平整度要在±1mm以內(nèi)，以保證顯示圖像不發(fā)生扭曲，局部凸起或凹進(jìn)會導(dǎo)致顯示屏的可視角度出現(xiàn)死角。平整度的好壞主要由生產(chǎn)工藝決定。性能參數(shù)：灰度：灰度也就是所謂的色階或灰階，是指亮度的明暗程度。對于LED數(shù)字化的顯示技術(shù)而言，灰度是顯示色彩數(shù)的決定因素。一般而言灰度越高，顯示的色彩越豐富，畫面也越細(xì)膩，更易表現(xiàn)豐富的細(xì)節(jié)。高刷新率：是指電子束對屏幕上的圖像重復(fù)掃描的次數(shù)較高。刷新率越高，所顯示的圖象(畫面)穩(wěn)定性就越好。刷新率高低將直接決定其價(jià)格，但是由于刷新率與分辨率兩者相互制約，因此只有在高分辨率下達(dá)到高刷新率這樣的顯示器才能稱其為性能較優(yōu)。目前市面上普通LED顯示屏的刷新率為800至1500HZ左右，超過4000HZ的為高刷新率。LED穩(wěn)定性：10萬小時(shí)，光衰為初始的50%。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="天津家用LED**品牌,LED" src="https://tyunfile.71360.com/UploadFile/jiangya/637401030848335286/1581974.png"></div><p style="text-indent:25px">LED弱電相關(guān)知識：配線時(shí)，相線與零線的顏色應(yīng)不同；同一機(jī)房或設(shè)備間相線（L）顏色應(yīng)統(tǒng)一，零線（N）宜用藍(lán)色，保護(hù)線（PE）必須用黃綠雙色線。過流一般銅芯線為6A/平方,鋁芯線為：3A/平方,計(jì)算電源供電線纜的粗細(xì)可以此標(biāo)準(zhǔn)計(jì)算。導(dǎo)線間和導(dǎo)線對地間電阻必須大于0.5MΩ。所有線路必須全程穿管或走線槽，不便于管或走線槽的部位應(yīng)給采取適當(dāng)?shù)谋Ｗo(hù)措施，并且布線要美觀大方、橫平堅(jiān)直、勞固結(jié)實(shí)。直線管的管徑利用率應(yīng)為50%~60%，彎管的管徑利用率應(yīng)為40%~50%。所布線路上存在局部干擾源，且不能滿足較小凈距離要求時(shí)，應(yīng)采用鋼管。LED的封裝主要有點(diǎn)膠、灌封、模壓三種。天津家用LED**品牌</p><p style="text-indent:25px">LED的價(jià)格比較昂貴，較之于白熾燈。一只LED的價(jià)格就可以與幾只白熾燈的價(jià)格相當(dāng)。天津家用LED**品牌</p><p style="text-indent:25px">LED顯示屏的應(yīng)用十分較廣，但還遠(yuǎn)不到普及的程度，大多數(shù)對于LED顯示屏的選購還存在一些盲區(qū)，那我們在選購的時(shí)候應(yīng)該注意什么呢?首先我們應(yīng)該注意在選購的時(shí)候一定要選擇質(zhì)量好的，也就是說要選擇大廠家生產(chǎn)的，不要為了圖便宜選擇小廠家生產(chǎn)的，質(zhì)量也不好。而且在選擇的時(shí)候一定要選擇售后有保證的LED顯示屏，而且在亮度調(diào)整的時(shí)候一定要調(diào)整到合理的亮度，不然長時(shí)間的面對LED顯示屏?xí)ρ劬σ膊缓茫瑫a(chǎn)生眼疾，等等一系列的不好的情況。而且選購LED顯示屏的時(shí)候也要看清楚屏幕的分辨率，不要過度的去追求屏幕的清晰度，對眼睛也不好。選擇大品牌的LED顯示屏不管是質(zhì)量還是外觀還是售后都是有保證的。天津家用LED**品牌</p><p style="text-indent:25px">中山市橫欄鎮(zhèn)江雅電子加工店位于中山市橫欄鎮(zhèn)新茂工業(yè)區(qū)慶龍路7號四樓之一。中山江雅電子致力于為客戶提供良好的球泡，蠟燭球泡，太陽能路燈，高富帥球泡，一切以用戶需求為中心，深受廣大客戶的歡迎。公司從事照明工業(yè)多年，有著創(chuàng)新的設(shè)計(jì)、強(qiáng)大的技術(shù)，還有一批**的專業(yè)化的隊(duì)伍，確保為客戶提供良好的產(chǎn)品及服務(wù)。中山江雅電子立足于全國市場，依托強(qiáng)大的研發(fā)實(shí)力，融合前沿的技術(shù)理念，飛快響應(yīng)客戶的變化需求。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2205335.html</p></div></div></div></div></div><div id="yeqizqm" class="page-right twoColRt"><div id="hq87gne" class="box01 margin10 clearfix"><h3><a 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