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| Brand | Leica |
|---|---|
| Origin | Germany |
| Model | Leica DM4 P |
| Illumination | High-efficiency white LED (transmitted & reflected) |
| Objective Turret | 6-position encoded, centerable |
| Condenser | Motorized, auto-recognizing 1.25×–100× objectives |
| Analyzer & Polarizer | Motorized, precise rotation control |
| Bertrand Lens | Integrated, focus-adjustable, centerable |
| Viewing Modes | Orthoscopic (plane-polarized), conoscopic (conoscopic), DIC, brightfield, oblique illumination |
| Software Integration | Leica Application Suite (LAS X), compliant with FDA 21 CFR Part 11 audit trail requirements |
| Compliance | ISO 9001 certified manufacturing |
| Ergonomics | Height-adjustable focus knobs, color-coded aperture controls, LCD status display with full parameter feedback (objective, condenser position, aperture setting, light intensity, mode) |
| Brand | Nikon |
|---|---|
| Origin | Japan |
| Model | Ci-POL |
| Optical System | CFI60 Infinity-Corrected |
| Objective Type | CFI P Achromat Polarizing (4X–100X Oil) |
| Illumination | 12 V, 50 W Halogen (equivalent to 12 V, 100 W output) |
| Analyzer | 360° Rotatable, 0.1° Graduation |
| Bertrand Lens | Focusing Type |
| Compensation Plates | Standard λ/4 Plate & Quartz Wedge |
| Stage | 360° Rotatable Mechanical Stage (1° Accuracy), 35 × 25 mm Travel |
| Focusing Range | 30 mm Vertical Travel |
| Max. Specimen Height | 82 mm (with LV-CR Spacer 35) |
| Observation Modes | Brightfield, Darkfield, Simple Polarization, DIC, Reflected Fluorescence (Visible/UV), Two-Beam Interference, Senarmont & Conoscopy |
| Compliance | RoHS-compliant optical glass (Pb/As-free) |
| Software Integration | NIS-Elements compatible |
| Weight | ~14 kg |
| Brand | Nikon |
|---|---|
| Origin | Japan |
| Model | LV100N POL |
| Optical System | CFI60 Infinity-Corrected |
| Illumination | 12V/50W Halogen with Köhler Illumination & Homogenizing Fly-Eye Lens |
| Polarization Components | Rotatable Analyzer (0.1° resolution), Focusing Bertrand Lens, Standard λ/4 Retardation Plate & Quartz Wedge, Optional Senarmont Compensator (0–1λ range) |
| Stage | Rotatable Circular Stage (360°, 1° scale, 45° detents), Mechanical Stage (35 × 25 mm travel), Optional High-Profile Stage for Thick Samples |
| Focus Travel | 30 mm with Upper-Limit Safety Stop |
| Compliance | RoHS-compliant lens elements (lead-free arsenic glass) |
| Software Compatibility | NIS-Elements AR/BR (image stitching, quantitative birefringence mapping, automated report generation) |
| Observation Modes | Transmitted Polarized Light, Reflected Polarized Light, Brightfield, Darkfield, DIC, Phase Contrast, Fluorescence, Interference Contrast |
| Brand | Nikon |
|---|---|
| Origin | Japan |
| Model | LV100POL |
| Optical System | CFI60 Infinity-Corrected |
| Illumination | 12 V / 50 W Halogen (Transmitted & Reflected) |
| Condenser | Stress-Free Achromatic, NA 0.9 |
| Stage | Precision 360° Rotatable Circular Stage with 1° Graduation and 45° Audible Click Stops |
| Objective Turret | Centerable Five-Position Nosepiece with DIN Slots |
| Analyzer | 360° Rotatable, 0.1° Graduation |
| Bertrand Lens | Built-in, Focusing and Centering Adjustable |
| Compensators | Standard λ/4 Gypsum and Mica Plates |
| Polarizer | Fixed in Condenser Mount with Angular Scale |
| Eyepieces | 10× CM Widefield (22 mm FOV) with Crosshair and Micrometer Scale |
| Focus Mechanism | Coaxial Coarse/Fine Drive |
| Weight | ~17 kg (Trinocular Configuration) |
| Power Consumption | 75 W (1.2 A) |
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