号 Model 组件及规格 Components&Specification L2003A L2003B 目镜 Eyepieces 大视野(Wide field) WF10×(φ18mm) ● ● WF16×(φ11mm) ○ ○ 平场分划(Plan dividing) 10×(0.10mm/格值 div) ○ ○ 物镜 Objectives 平场消色差（Plan achromatic）无盖玻片 (No cover glass) 放大倍数/数值孔径 Magnification/numerical aperture 工作距离 Working distance PL5×/0.12 18.3 ● ● PL10×/0.25 8.9 ● ● PL20×/0.40 8.7 ○ ● PL40×/0.65(弹簧，spring) 3.7 ● ● PL60×/0.85(弹簧，spring) 0.26 ● ● PL100×/1.25油 oil (弹簧，spring) 0.44 ○ ○ 目镜筒 Eyepieces tube 三目镜 Trinocular 转轴式，倾斜300 Compensation(inclination of 300) 包括检偏振片 Including analyzer ● ● 转换器 Nospiece 滚珠内定位内弯 Backward Inner Locaing On ball bearing 四孔 Quadruple ● 五孔Quintuple ● CCD摄像机附件 CCD camera accessories 0.4×CCD摄像机接头 0.4×CCD camera adapter ○ ○ CCD摄像机接头 CCD camera adapter ○ ○ 0.5×带分划尺CCD摄像机接头 0.5×CCD camera with dividing ○ ○ CCD摄像机 CCD camera ○ ○ 照明系统 Iiiumination 落射照明6V 20W,卤素灯，亮度可调 Vertical illumination 6V 20W halogen lamp,adjustable brightness. 带起偏振片 with polarizer ● ● 数码相机接头 Digital camera adapter 尼康数码相机专用 for NIKON digital camera ○ ○