A brief introduction
The HN-2020 transparent and reflective (dual color) upright metallographic microscope is equipped with a transparent and reflective lighting system, a long-distance flat field achromatic objective (without a cover glass), a large field of view eyepiece, and a built-in polarization observation device. The optical system has clear imaging and a wide field of view, suitable for observing the internal organizational structure of materials in industrial and mining enterprises, universities, and scientific research institutions.
Performance characteristics
▲ Equipped with a large field of view eyepiece and a long-range flat field achromatic objective (without cover glass), the field of view is large and clear.
▲ Coarse and micro coaxial focusing mechanism, adjustable coarse and micro elasticity, with locking and limiting devices, micro grid value: 2 μ M.
The transparent and reflective lighting system can simultaneously illuminate objects, and certain objects can see their special effects.
▲ 6V20W halogen lamp with adjustable brightness.
▲ Three lens tube, can freely switch between normal observation and polarized observation, and can perform 100% transparent photography

型号	L2020A	L2020B
目镜	大视野 WF10X(Φ18mm)
物镜	长距平场消色差物镜(无盖玻片)PL 5X/0.12	长距平场消色差物镜(无盖玻片)PL 5X/0.12
	长距平场消色差物镜(无盖玻片)PL L10X/0.25	长距平场消色差物镜(无盖玻片)PL L10X/0.25
	长距平场消色差物镜(无盖玻片)PL L40X/0.60	长距平场消色差物镜(无盖玻片)PL L20X/0.40
	长距平场消色差物镜(无盖玻片)PL L60X/0.75  (弹簧)	长距平场消色差物镜(无盖玻片)PL L40X/0.60
		长距平场消色差物镜(无盖玻片)PL L60X/0.75  (弹簧)
目镜筒	三目镜,倾斜30˚,(内置检偏振片,可进行切换)
落射照明系统	6V 20W卤素灯,亮度可调
	落射照明器带视场光栏、孔径光栏、起偏振片,(红,蓝,绿)滤色片和磨砂玻璃
调焦机构	粗微动同轴调焦, 微动格值:2μm, 粗动松紧调节,带锁紧和限位装置
转换器	四孔(内向式滚珠内定位)	五孔 (内向式滚珠内定位)
载物台	双层机械移动式(尺寸:160mmX140mm,移动范围:75mmX50mm)
透射照明系统	阿贝聚光镜  NA.1.25  可上下升降
	(蓝,绿)滤色片和磨砂玻璃
	集光器， 卤素灯适用
	6V 20W 卤素灯,亮度可调

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