倒置熒光顯微鏡是近年來(lai)逐步發(fa)(fa)展起(qi)來(lai)的(de)(de)一(yi)種新型顯微鏡(jing)(jing)種類,其(qi)特(te)點是激(ji)(ji)(ji)發(fa)(fa)光(guang)從物(wu)(wu)(wu)鏡(jing)(jing)向下(xia)落(luo)射到(dao)(dao)標本表(biao)(biao)面(mian),即用同(tong)(tong)一(yi)物(wu)(wu)(wu)鏡(jing)(jing)作為(wei)照明聚光(guang)器(qi)和收集(ji)熒(ying)(ying)光(guang)的(de)(de)物(wu)(wu)(wu)鏡(jing)(jing)。光(guang)路中(zhong)需(xu)加上一(yi)個雙(shuang)色束(shu)分(fen)(fen)離(li)器(qi),它與光(guang)鈾呈45度,激(ji)(ji)(ji)發(fa)(fa)光(guang)被反(fan)(fan)射到(dao)(dao)物(wu)(wu)(wu)鏡(jing)(jing)中(zhong),并聚集(ji)在樣(yang)品上,樣(yang)品所產生的(de)(de)熒(ying)(ying)光(guang)以及由物(wu)(wu)(wu)鏡(jing)(jing)透鏡(jing)(jing)表(biao)(biao)面(mian)、蓋(gai)玻片表(biao)(biao)面(mian)反(fan)(fan)射的(de)(de)激(ji)(ji)(ji)發(fa)(fa)光(guang)同(tong)(tong)時進(jin)入物(wu)(wu)(wu)鏡(jing)(jing),反(fan)(fan)回到(dao)(dao)雙(shuang)色束(shu)分(fen)(fen)離(li)器(qi),使激(ji)(ji)(ji)發(fa)(fa)光(guang)和熒(ying)(ying)光(guang)分(fen)(fen)開(kai),殘余(yu)激(ji)(ji)(ji)發(fa)(fa)光(guang)再被阻斷濾片吸收。如換用不(bu)同(tong)(tong)的(de)(de)激(ji)(ji)(ji)發(fa)(fa)濾片、雙(shuang)色束(shu)分(fen)(fen)離(li)器(qi)、阻斷濾片的(de)(de)組合插塊,可(ke)滿足不(bu)同(tong)(tong)熒(ying)(ying)光(guang)反(fan)(fan)應(ying)產物(wu)(wu)(wu)的(de)(de)需(xu)要。
在倒置熒光顯微鏡的使用(yong)(yong)過程中,如果遇到(dao)設備出現故障,使用(yong)(yong)者(zhe)可參考以下方法進行處理:
1、視場內無照明:
①未開(kai)啟電源(yuan)(yuan)開(kai)關(guan):打開(kai)電源(yuan)(yuan)開(kai)關(guan);
②安裝的(de)照明燈(deng)泡不符(fu)合要求:使(shi)用符(fu)合要求的(de)燈(deng)泡;
③電器底盤連接件(jian)接觸不(bu)良:檢查并(bing)送專業維(wei)修;
④保險絲損壞:更換新保險絲。
2、電(dian)源箱電(dian)壓表與電(dian)流表指示(shi)不(bu)斷升高(gao):
汞燈(deng)已超出使壽命:更換(huan)新的汞燈(deng);
3、電源箱電壓表(biao)(biao)與電流(liu)表(biao)(biao)指示不(bu)斷擺動:
①汞(gong)(gong)燈(deng)已超出使壽命:更換新的汞(gong)(gong)燈(deng);
②電(dian)源箱內部(bu)電(dian)路有損壞:檢查并送專(zhuan)業維修。
4、視(shi)場(chang)邊(bian)緣有黑影或視(shi)場(chang)照明不均勻(yun),不能觀察完(wan)整的(de)視(shi)場(chang):
①轉(zhuan)換器未(wei)轉(zhuan)入到定(ding)位(wei)(wei)點:轉(zhuan)動轉(zhuan)換器到定(ding)位(wei)(wei)位(wei)(wei)置;
②聚(ju)光系(xi)統(tong)因偏離(li)而遮擋照明光路:將聚(ju)光系(xi)統(tong)轉入光路至定位(wei)位(wei)置;
③物(wu)鏡、目鏡或(huo)聚光鏡表面霉漬或(huo)油污(wu):擦拭鏡片表面或(huo)更(geng)換;
④照明(ming)(ming)燈絲(si)像偏離集(ji)光鏡中(zhong)心:調(diao)整照明(ming)(ming)燈泡(pao)的位(wei)置。
5、離(li)焦(jiao)或分辨率低:
①物鏡(jing)損壞(huai):修(xiu)配物鏡(jing)(需專業維修(xiu));
②孔(kong)(kong)(kong)徑(jing)光闌孔(kong)(kong)(kong)徑(jing)開得太小:根據(ju)所使用物鏡倍率(lv)調整(zheng)孔(kong)(kong)(kong)徑(jing)光闌孔(kong)(kong)(kong)徑(jing)大(da)小;
③標本(ben)蓋玻(bo)片太厚或太薄:按(an)物(wu)鏡要求加(jia)裝蓋玻(bo)片;
④物鏡偏離光路:轉動轉換器到(dao)定位位置(zhi)。