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

型號(hào)	L2020A	L2020B
目鏡	大視野 WF10X(Φ18mm)
物鏡	長距平場(chǎng)消色差物鏡(無蓋玻片)PL 5X/0.12	長距平場(chǎng)消色差物鏡(無蓋玻片)PL 5X/0.12
	長距平場(chǎng)消色差物鏡(無蓋玻片)PL L10X/0.25	長距平場(chǎng)消色差物鏡(無蓋玻片)PL L10X/0.25
	長距平場(chǎng)消色差物鏡(無蓋玻片)PL L40X/0.60	長距平場(chǎng)消色差物鏡(無蓋玻片)PL L20X/0.40
	長距平場(chǎng)消色差物鏡(無蓋玻片)PL L60X/0.75  (彈簧)	長距平場(chǎng)消色差物鏡(無蓋玻片)PL L40X/0.60
		長距平場(chǎng)消色差物鏡(無蓋玻片)PL L60X/0.75  (彈簧)
目鏡筒	三目鏡,傾斜30?,(內(nèi)置檢偏振片,可進(jìn)行切換)
落射照明系統(tǒng)	6V 20W鹵素?zé)?亮度可調(diào)
	落射照明器帶視場(chǎng)光欄、孔徑光欄、起偏振片,(紅,藍(lán),綠)濾色片和磨砂玻璃
調(diào)焦機(jī)構(gòu)	粗微動(dòng)同軸調(diào)焦, 微動(dòng)格值:2μm, 粗動(dòng)松緊調(diào)節(jié),帶鎖緊和限位裝置
轉(zhuǎn)換器	四孔(內(nèi)向式滾珠內(nèi)定位)	五孔 (內(nèi)向式滾珠內(nèi)定位)
載物臺(tái)	雙層機(jī)械移動(dòng)式(尺寸:160mmX140mm,移動(dòng)范圍:75mmX50mm)
透射照明系統(tǒng)	阿貝聚光鏡  NA.1.25  可上下升降
	(藍(lán),綠)濾色片和磨砂玻璃
	集光器， 鹵素?zé)暨m用
	6V 20W 鹵素?zé)?亮度可調(diào)