XJL-302/302BD正置金相顯微鏡適用于對不透明物體的顯微觀察。采用優良的無限遠光學系統與模塊化功能設計理念，可以方便升級系統，實現偏光觀察、暗場觀察等功能，緊湊穩定的高剛性主體，充分體現了顯微操作的防振要求。符合人機工程學要求的理想設計，使操作更方便舒適，空間更廣闊。適用于金相組織及表面形態的顯微觀察，是金屬學、礦物學、精密工程學研究的理想儀器。
XJL-302/302BD upright metallurgical microscope is suitable to observe surfaces of opaque object. It is equipped excellent UIS optical system and modularization function design so that update system expediently ａnd achieved polarization, dark field observation. Compact and steady main frame body is embodiment for the shock resistance. The ideal ergonomic design is adopted in this unit and has easier operation and wider space. This is ideal optical instrument for micro observation in metallographic structure and surface morphology. It is suitable for research in metallography, mineralogy, precision engineering, etc.
| 技術規格 Specification | |||||
| 目鏡Eyepiece | 大視野 WF10X(視場數Φ22mm) Wide field WF10X(field number:Φ22mm) | ||||
| 無限遠平場消色差物鏡Infinity plan achromatic objective | XJL-302 （配明場物鏡） （Equipped with bright field objectives） | PL L5X/0.12 工作距離(Work distance)：26.1 mm | |||
| PL L10X/0.25 工作距離(Work distance)：20.2 mm | |||||
| PL L20X/0.40 工作距離(Work distance)：8.80 mm | |||||
| PL L50X/0.70 工作距離(Work distance)：3.68 mm | |||||
| PL L80X/0.80 工作距離(Work distance)：1.25 mm | |||||
| XJL-302BD （配明/暗場物鏡） （Equipped with bright & dark field objectives） | PL L5X/0.12 BD 工作距離(Work distance)：9.70 mm | ||||
| PL L10X/0.25 BD 工作距離(Work distance)：9.30 mm | |||||
| PL L20X/0.40 BD 工作距離(Work distance)：7.23mm | |||||
| PL L50X/0.70 BD 工作距離(Work distance)：2.50 mm | |||||
| PL L80X/0.80 BD 工作距離(Work distance)：0.80 mm | |||||
| 目鏡筒Eyepieces tube | 三目鏡30?傾斜, 可99%通光攝影。Trinocular inclined 30?, can be shot in 99% light flux. | ||||
| 落射照明系統 Epi- illumination system | XJL-302 | 6V30W鹵素燈，亮度可調 6V30W halogen and brightness enable control | |||
| XJL-302BD | 12V50W鹵素燈，亮度可調 12V50W halogen and brightness enable control | ||||
| 內置視場光欄、孔徑光欄、(黃、藍、綠、磨砂玻璃)濾色片轉換裝置，推拉式檢偏器與起偏器 Integrated field diaphragm, aperture diaphragm ａnd (Y,B,G, ground glass) switching device. Push-pull type analyzer and polarizer. | |||||
| 調焦機構Focus system | 粗微動同軸調焦,帶鎖緊和限位裝置,微動格值:0.7μm。 Coaxial coarse/fine focus system, with tension adjustable and limit stopper, minimum division of fine focusing: 0.7μm. | ||||
| 轉換器 Nosepiece | 五孔(內向式滾珠內定位) Quintuple (Backward ball bearing inner locating) | ||||
| 載物臺 Stage | 機械式載物臺，外形尺寸：280mmX270mm，移動范圍：橫向（X）204mm，縱向（Y）204mm Mechanical stage，overall size：280mmX270mm，moving range: 204mmX204mm | ||||
| 選配件 Optional Accessory | 目鏡Eyepiece | 分劃目鏡10X（Φ22mm）Dividing eyepiece(Φ22mm) | |||
| 物鏡 Objective | XJL-302 | 40X、60X、100X(干式Dry)) 明場物鏡Bright field objective | |||
| XJL-302BD | 40X、60X、100X明/暗場物鏡 Bright & dark field objective | ||||
| 載物臺 Stage | 外形尺寸250mmX230mm, 移動范圍:154mmX154mm。Overall size: 250mmX230mm, moving range:154mmX154mm | ||||
| CCD接頭CCD adapter | 0.4X、0.5X、1X、0.5X帶分劃尺（With dividing） | ||||
| 攝像儀Camera | USB輸出：130/200/300萬像素USB output: 1.3M/2.0M/3.0M pixel VIDEO輸出：380/520 電視線VIDEO output: 380/520 TV Line | ||||
| 數碼相機接頭 Digital camera adapter | CANON(EF) NIKON( F) | ||||
