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class="pic"><img src="https://tyunfile.71360.com/UploadFile/JLKJ2020/637285914738261719/5456503.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="3jbta3w" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/JLKJ2020/637285914738261719/5456503.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="vu2gip8" 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>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>沙井手機鏡片面板批發(fā),鏡片面板</p><p><span>***更新：</span>2020-11-28 03:06:32</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="qkcpheg" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">深圳市佶利科技有限公司</a></p><p><span>聯(lián)系人：</span>江小姐</p><p><span>郵箱: </span>360581031@qq.com</p><p><span>電話: </span>13928444710</p><p><span>傳真: </span>0755_</p><p><span>網(wǎng)址: </span></p><p><span>手機: </span>0755-81471926</p><p><span>地址: </span>觀瀾街道廣培社區(qū)木頭湖517號201-1</p><p>[當前離線] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="jtqi7er" class="page-proshow02"><p class="title">詳細說明</p><div id="s28czw2" class="box"><p><p> 鏡片的光學(xué)性質(zhì)：光線折射 </p> <p> <br /> </p> <p> 光學(xué)性質(zhì)是材料的基本性質(zhì)，與鏡片在日常生活中所見到的各種光學(xué)現(xiàn)象相符合，主要為光線在鏡片表面的折射和反射、材料本身的吸收，以及散射和衍射現(xiàn)象。 </p> <p> （1）光線折射：通過鏡片的光線會在鏡片的前后表面發(fā)生折射或偏離現(xiàn)象，光線的偏離幅度由材料的折射率和入射光線在鏡片表面的入射角度決定。??1）折射率：透明媒質(zhì)的折射率是光線在真空中的速度c與在媒質(zhì)中的速度v的比值， </p> <p> n=c/v。該比值沒有單位并且總是大于1。折射率反映媒質(zhì)的折射能力，折射率越高，從空氣進入該媒介的光束偏離得越多。從空氣到折射率為n的透明媒質(zhì)所發(fā)生的偏離或折射可以根據(jù)斯涅耳-笛卡爾定律(Snell-Descartes?Law)進行計算，規(guī)定如下：折射光線與入射光線和法線位于同一平面入射角i和折射角r分別由法線與入射光線、折射光線構(gòu)成。計算公式：?sin?i=n?sin?r????由于透明媒質(zhì)的光速隨著波長而變化，所以折射率的值總是參考某一特定波長 </p> <p> 表示：在歐洲和日本，參考波長為e線546.07nm(汞--綠光譜線)，但是在美國等其它 </p> <p> 國家則是d線587，沙井手機鏡片面板批發(fā).56nm(氦--黃光譜線)。但這個區(qū)別并沒有造成實際影響，因為它的 </p> <p> 區(qū)別**反映在折射率值的第三位小數(shù)上，沙井手機鏡片面板批發(fā)。涼熱感：用舌尖輕輕舔鏡片，沙井手機鏡片面板批發(fā)，涼爽感較強是天然水晶，舔后涼即變溫的是仿造品。沙井手機鏡片面板批發(fā)</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="沙井手機鏡片面板批發(fā),鏡片面板" src="https://tyunfile.71360.com/UploadFile/JLKJ2020/637285914738261719/5456503.png"></div><p> 防刮花亞克力鏡片其實質(zhì)亞克力鏡片表面的硬化處理 </p> <p> 亞克力表面硬化這種板能常用在手機、顯示屏、儀表面板等各類常被接觸到的顯示面板上。亞克力又叫有機玻璃，也叫壓克力，是一種高分子聚酯化合物，由于硬度不是很高，也容易產(chǎn)生劃痕，因此表面必須加硬，這個過程叫亞克力表面硬化處理，也有的人叫表面鍍膜。????因為不有經(jīng)過硬化過的亞克力板不納劃傷，而通過表面硬化處理的亞克力板硬度從H能增加到4H以上，所以它的作用是防止劃傷。加上現(xiàn)有工藝和設(shè)備的處理，能夠使防刮花亞克力鏡片大量生產(chǎn)應(yīng)用于手機屏鏡片 </p> <p> <br /> </p> <p> <br /> 東莞電器鏡片面板切割加工廠為什么亞克力UV噴繪能代替玻璃？</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="沙井手機鏡片面板批發(fā),鏡片面板" src="https://tyunfile.71360.com/UploadFile/JLKJ2020/637285914386689453/2311554.png"></div><p> 熱固性材料的鏡片工藝 </p> <p> （1）熱固性材料（以熱固性樹脂中的CR-39為例）由化工產(chǎn)品供應(yīng)商處獲得液態(tài)單體后，再根據(jù)以下工序進行制造；單體準備：過濾、排隊氣、加入催化劑； </p> <p> （2）裝配：可通過圓形環(huán)（墊圈）壓縮和夾子緊固，也可使用專門膠帶裝配的由兩回部分玻璃或金屬組成的模子； </p> <p> （3）填料：在由兩部件組成的模子空間內(nèi)注入液態(tài)單體； </p> <p> （4）聚合：將注滿單體的模子放入爐內(nèi)接受幾小時的熱循環(huán)固化，對于某些材料 </p> <p> 可用紫外線輻射數(shù)分鐘，以使樹脂逐漸固化； </p> <p> （5）開模：除去夾子或膠帶，分開模子，取出鏡片 </p><p> 市場所采用的鏡片材料的折射率范圍 </p> <p> 目前市場所采用的鏡片材料的折射率范圍是從1.5--1.9。??2）色散系數(shù)：阿貝數(shù)。 </p> <p> 由光波引起的折射率變化會使白光根據(jù)不同的折射產(chǎn)生色散現(xiàn)象。事實上，波長越短，折射率越高，可見光的折射從光譜的紅光區(qū)延伸到藍光區(qū)。材料的色散能力可以由阿貝數(shù)描述，在歐洲、日本規(guī)定用e線，在美國等其他國家規(guī)定使用d線。 </p> <p> 阿貝數(shù)與材料的色散力成反比，鏡片材料規(guī)定的范圍通常從30-60，數(shù)值越大即表示色散越少。一般而言，折射率越高，色散力越大，而阿貝數(shù)就越低。盡管所有鏡片都存在色散，但在鏡片中心，這個因素可以被忽略，只有在用高色散材料制造的鏡片周邊部，色散現(xiàn)象才易被察覺。在這種情況下，色散現(xiàn)象所表現(xiàn)的是離軸物體邊緣帶有彩色條紋加工性：一般.不能進行滲透性染色；難于用玻璃鏡片進行無框、半框的加工</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="沙井手機鏡片面板批發(fā),鏡片面板" src="https://tyunfile.71360.com/UploadFile/JLKJ2020/637285914477246094/1845224.png"></div><p> 光學(xué)樹脂鏡片價格 </p> <p> .價格：隨質(zhì)量、功能、品牌、檔次不一而論. </p> <p> J.鏡片的尺寸設(shè)計：美國藥品與食品管理局“F.D.A”標準中規(guī)定，中心厚度比較低可設(shè)計至0.6毫米，但強度要求卻相應(yīng)降低，為此歐洲、美國、日本等國生產(chǎn)商一般把近視、遠視100度以上的鏡片**厚度設(shè)計在1.0毫米以上，以保證鏡片的整體強度。常用的光學(xué)樹脂材料有：丙烯基二甘醇碳酸酯（CR-39）聚甲基丙烯酸甲酯（PMMA）聚碳酸酯（PC）三大類。折射率可以使用以下任意一種技術(shù)來增加： </p> <p> （1）改變原子分子中電子的結(jié)構(gòu)，例如：引入苯環(huán)結(jié)構(gòu)； </p> <p> （2）在原分子中加入重原子，諸如鹵素（氯、溴等）或硫。與傳統(tǒng)CR-39相比，用中高折射率樹脂材料制造鏡片使得更輕、更薄。其主要是在玻璃材料中加入了鹵化銀晶體。東莞電器鏡片面板切割加工廠</p><p style="text-indent:25px">結(jié)合了兩種材料的優(yōu)異特性，ABS材料的成型性和PC的機械性、沖擊強度和耐溫、抗紫外線（UV）等性質(zhì)。沙井手機鏡片面板批發(fā)</p><p> 光學(xué)玻璃鏡片的分類。 </p> <p> 無色玻璃鏡片 </p> <p> 托力克片（Toric）：也稱白托片，白片?？煞譃槠胀ê凸鈱W(xué)白片兩種。普通白片的主要組成為鈉鈣硅酸鹽，折射率為1.51，可見光的透光率為89%以上，可吸收280nm以下的紫外線。光學(xué)白片的主要組成為鈉鈣硅酸，折射率為1.531，阿貝數(shù)60.5，透光率在91%以上，防紫外線性能**差。 </p> <p> 克羅克斯鏡片（Crookes） </p> <p> 由英國人威廉.克羅克斯于1914年發(fā)明，故命名為克羅克斯鏡片，簡稱克斯片?？怂蛊譃槠胀ê凸鈱W(xué)克斯片兩種。普通克斯片簡稱光克片，是在鋇冕玻璃成分中添加微量 </p> <p> 的氧化鈰、氧化釹和氧化鐠等物質(zhì)，使鏡片有明顯的雙色效應(yīng)，即在白熾燈光下呈淺紫紅色，在日光燈下呈淺青蘭色，能吸收340nm以下的紫外線，折射率為1.523，透光率為87%以上。 </p> <p> 光致變色鏡片 </p> <p> 簡稱變**。是在無色或有色光學(xué)玻璃成分中添加鹵化銀等化合物，使鏡片能在紫外線照射時分解成銀和鹵素原子，鏡片顏色由淺變深。反之，當光線變暗時，銀和鹵素重新又結(jié)合成無色的鹵化銀，使鏡片又回到原來無色或有基色的狀態(tài)。變色鏡片有茶變和灰變兩種，其特點是既可矯正視力，又可作為太陽眼鏡，適合野外配戴沙井手機鏡片面板批發(fā)</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2172892.html</p></div></div></div></div></div><div id="coaxz8g" class="page-right twoColRt"><div id="nspme7c" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="ss2zryq" 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配件哪家強信息推薦自業(yè)物資供應(yīng)" class="vcenter" 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