BM (Biaimu)
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| Brand | BM (Biaimu) |
|---|---|
| Origin | Shanghai, China |
| Model | BM-SG20BD D |
| Illumination | Reflected (Epi-illumination) & Transmitted |
| Optical Design | Infinity-Corrected, Dual-Path (Brightfield/Darkfield/DIC/Polarized) |
| Eyepiece Tube | 30° Inclined Trinocular |
| Objective Turret | Quadruple with DIC Slot |
| Total Magnification Range | 50×–500× (with 10× eyepieces and standard objectives) |
| Eyepieces | Widefield Plan 10×/25 mm, Crosshair 10×/20 mm (0.1 mm graticule) |
| Objectives | Infinity-Corrected Long Working Distance Plan Apochromat BF/DF, 5×/0.10, 10×/0.25, 20×/0.40, 50×/0.55 |
| Condenser | NA 1.25 Abbe with Iris Diaphragm & Filter Holder |
| Focus Mechanism | Coaxial Coarse/Fine Drive, Fine Adjustment Graduation: 2 µm |
| Stage | Dual-layer Mechanical Stage, 189 × 160 mm, Travel: 80 × 50 mm |
| Polarization System | Rotatable Analyzer (0–360°), Removable Polarizer & Analyzer |
| Illumination Sources | 12 V/50 W Halogen (Reflected & Transmitted), Kӧhler Illumination, Continuous Intensity Control, Field & Aperture Diaphragms |
| Camera Interface | GT5.0 5 MP CMOS Sensor with MCL-Z C-mount Adapter |
| Software | Geometric Metrology Suite (Point, Line, Circle, Arc, Straightness, Roundness, Area) |