69X系列偏光显微镜用途概述：
采用透射照明系统，主要用于对各种透明的晶体、岩石、矿物以及具有双折射的物质进行观察和鉴定，是地质、矿产、冶金等部门和相关高等院校zui为常用的专业实验仪器之一。也可用于纺织、化纤行业对纺织纤维和医用单位对药物进行检验。随着光学技术的不断进步，偏光显微镜其应用也越来越广泛，可供用户作单偏光观察;正交偏光观察;锥光观察以及显微摄影，配置有石膏λ、云母1/4λ试片、石英楔子和移动尺等附件，是有一组具有较完备功能和良好品质的产品。
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系列偏光显微镜技术指标：
1.总放大倍数:40X-600X
2.目镜:10x/φ22平场目镜、10X/φ18十字目镜
10X/φ18网格目镜、10X/φ18分划目镜
3.无穷远无应力消色差物镜:4X/0.10, 10X/0.25，20X/0.40, 40X/0.65, 60X/0.80
4.观察镜筒:360°旋转，滑板式双目镜筒45°倾斜，铰链式双目镜筒30°倾斜
5.机械筒长:∞mm
6.调焦机构:调焦范围30mm,徽动格值0.002mm， 粗微动同轴调焦带限位及锁紧装工
7.旋转图工作台:φ160mm, 360°等分刻度，载物圆平板外径φ80mm，内孔φ24mm
8.移动尺:移动行程30 x 40mm
9.聚光镜:1.30N.A，阿贝聚光镜带可变光栏及滤色片
10.检偏装置:0°-90°转动式检偏器
11.起偏装置:配置在聚光镜上
12.补色器:石膏λ片、云母1/4λ片、石英楔子
13.光源:12V/30VA卤钨灯，亮度可调
69X仪器成套性:
1.目镜:10x 双目1对/单目1只
2.目镜:10x十字目镜、10x网格目镜、10x分划目镜
3.无应力消色差物镜:4X/0.1, 10X/0.25, 20X/0.40、各1只
40X/0.65（弹簧）、60X/0.85（弹簧）各1只
4.试片:石膏1λ、云母1/4λ、石英楔子 各1片
5.测微尺:0.01mm 各1片
6.滤色片:蓝灰色 1片
7.移动尺:1件
8.观察镜筒:（铰链式和滑板式可选择）1件
9.调节手柄:1只
10.透射接头:2只
11.卤钨灯（备用）:1只
12.载物圆平板:1块
69XCL为透反射偏光显微镜，加装垂直照明器，用与观看不透明物。
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