69X系列偏光顯微鏡用途概述：
采用透射照明系統，主要用于對各種透明的晶體、巖石、礦物以及具有雙折射的物質進行觀察和鑒定，是地質、礦產、冶金等部門和相關高等院校zui為常用的專業實驗儀器之一。也可用于紡織、化纖行業對紡織纖維和單位對藥物進行檢驗。隨著光學技術的不斷進步，偏光顯微鏡其應用也越來越廣泛，可供用戶作單偏光觀察;正交偏光觀察;錐光觀察以及顯微攝影，配置有石膏λ、云母1/4λ試片、石英楔子和移動尺等附件，是有一組具有較完備功能和良好品質的產品。
The 69X polarizing microscope uses the transmission illumination system, mainly uses in to each kind of transparent crystal, the rock,the ore as well as has the double refraction the matter to carry on the observation and the appraisal, This one of in common use specialty experiment instruments correlation, geology, minerals, metallurgy department and college etc. Also may use in the textile, the chemical hemp industry carries out the examination to the textile hemp and the medical unit to the medicine. Along with the optics technology unceasing progress, polarizing microscope its application more and more is also widespread, may make the single polarized light observation for the user; Orthogonal polarized light observation; The awl light observation as well as the micrograph, the disposition have the gypsumλ，the mica 1/4λpreviews, appendix and so on quartz wedge and motion ruler, has a group to have the maturity function and the good quality product.
69X系列偏光顯微鏡技術指標：
1.總放大倍數:40X-600X
2.目鏡:10x/φ22平場目鏡、10X/φ18十字目鏡
10X/φ18網格目鏡、10X/φ18分劃目鏡
3.無窮遠無應力消色差物鏡:4X/0.10, 10X/0.25，20X/0.40, 40X/0.65, 60X/0.80
4.觀察鏡筒:360°旋轉，滑板式雙目鏡筒45°傾斜，鉸鏈式雙目鏡筒30°傾斜
5.機械筒長:∞mm
6.調焦機構:調焦范圍30mm,徽動格值0.002mm， 粗微動同軸調焦帶限位及鎖緊裝工
7.旋轉圖工作臺:φ160mm, 360°等分刻度，載物圓平板外徑φ80mm，內孔φ24mm
8.移動尺:移動行程30 x 40mm
9.聚光鏡:1.30N.A，阿貝聚光鏡帶可變光欄及濾色片
10.檢偏裝置:0°-90°轉動式檢偏器
11.起偏裝置:配置在聚光鏡上
12.補色器:石膏λ片、云母1/4λ片、石英楔子
13.光源:12V/30VA鹵鎢燈，亮度可調
69X儀器成套性:
1.目鏡:10x 雙目1對/單目1只
2.目鏡:10x十字目鏡、10x網格目鏡、10x分劃目鏡
3.無應力消色差物鏡:4X/0.1, 10X/0.25, 20X/0.40、各1只
40X/0.65（彈簧）、60X/0.85（彈簧）各1只
4.試片:石膏1λ、云母1/4λ、石英楔子 各1片
5.測微尺:0.01mm 各1片
6.濾色片:藍灰色 1片
7.移動尺:1件
8.觀察鏡筒:（鉸鏈式和滑板式可選擇）1件
9.調節手柄:1只
10.透射接頭:2只
11.鹵鎢燈（備用）:1只
12.載物圓平板:1塊
69XCL為透反射偏光顯微鏡，加裝垂直照明器，用與觀看不透明物。
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