COLO.Science — ROMI-520 RESEARCH GRADE BIOLOGICAL MICROSCOPE
ROMI-520 Biological Microscope (Binocular / Trinocular)
Cost-effective advanced upright laboratory microscope with infinity corrected plan achromatic optical system (F=200 mm),
designed for medicine, clinical, and biology research applications.
Koehler illumination
Infinity optics F=200 mm
Plan achromatic objectives
3W LED / 20W Halogen options
Abbe condenser NA 1.25
Bright field / Dark field capable
Highlights
- Full metal body, stable platform; integrated carry handle.
- Coaxial fine/coarse focusing (fine: 0.2 mm; coarse travel: 37.7 mm) with friction/tension control.
- Abbe condenser NA 1.25 with iris diaphragm and slot for contrast sliders (phase contrast, darkfield, compensator, etc.).
- Illumination: 3W adjustable LED (6000K, ~28,000 h) or 20/30W tungsten-halogen (100–240 V).
- Optional: trinocular tube, phase contrast, dark field condenser, HDMI, USB charging port, COLO microscope cameras.
Overview
ROMI-520 is a compact, maintenance-free microscope for educational life science and clinical laboratories.
It uses an infinity corrected optical system with high eyepoint wide-field eyepieces and supports multiple contrast methods, including optional phase contrast and dark field.
Key features
- Viewing head: Siedentopf binocular (Interpupillary distance ~50–75 mm; 30°/45° inclined; 360° rotatable; diopter adjustable); trinocular option available.
- Nosepiece: revolving reversed type for 4/5 objectives; quadruple nosepiece standard (quintuple click-stop optional).
- Stage: right-hand mechanical stage; micrometre on X/Y; multiple stage sizes optional.
- Condenser: Abbe NA 1.25 with iris diaphragm and filter holder; centering and height adjustment.
- Coatings: antimicrobial/antifungal coating; optical system treated with antifungal paint; chemical resistance coating.
Technical specifications
| Optical system | Infinity independent plan achromatic optical system, F = 200 mm |
| Illumination | 3W adjustable LED (6000K, ~28,000 h) or 20/30W tungsten-halogen; 100–240 V power supply (USB power bank optional) |
| Focusing | Fine & coarse coaxial focusing; fine focus 0.2 mm; coarse focus travel 37.7 mm; rack stop; friction control |
| Condenser | Abbe condenser NA 1.25 with iris diaphragm (45 mm) and slot for contrast sliders; centering and levelling |
| Eyepieces (typ.) | WF10X/20 (high eye-point plan) |
| Dimensions (W×D×H) | 200 × 240 × 380 mm |
| Weight | 5.5 kg |
| Energy consumption | 3W |
ROMI520 model variants (configuration matrix)
Legend: ● = standard, ○ = optional. Model codes and configuration mapping are taken from the PDF specification table.
| Feature | 520 BL | 520 BHPA | 520 BLPA | 520 THPA | 520 BHPH | 520 THPH | 520 BHUD | 520 THUD | 520 BH | 520 BTPA |
|---|---|---|---|---|---|---|---|---|---|---|
| Binocular head (IPD 48–75 mm) | ● | ● | ● | ○ | ● | ○ | ● | ○ | ● | ○ |
| Trinocular head (20:80) | ○ | ○ | ○ | ● | ○ | ● | ○ | ● | ○ | ● |
| High eye-point plan eyepiece WF10X/20 | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● |
| Infinity Achromatic objectives set (4X/10X/40X(S)/100X(S) Oil) | ● | ○ | ○ | ○ | ● | ● | ● | ● | ● | ○ |
| Infinity Plan Achromatic objectives set (4X/10X/40X(S)/100X(S) Oil) | ○ | ● | ● | ● | ○ | ○ | ○ | ○ | ○ | ● |
| Phase contrast package (positive objectives 10X/40X(S)/100X(S) Oil + phase-contrast condenser) | ○ | ○ | ○ | ○ | ● | ● | ○ | ○ | ○ | ○ |
| 6V 20W tungsten-halogen lamp | ○ | ● | ○ | ● | ● | ● | ● | ● | ● | ● |
| 3W LED electric device | ● | ○ | ● | ○ | ○ | ○ | ○ | ○ | ○ | ○ |
| 1X C-mount | ○ | ○ | ○ | ● | ○ | ● | ○ | ● | ○ | ○ |
Note: Many additional items are listed in the PDF matrix (nosepiece options, filters, HDMI, USB charging port, accessories, etc.).
If you want, I can extend this table with more rows from the PDF without changing your layout style.
Included items (typ.)
- User manual, dust cover, immersion oil (10 ml), power cord, Allen screwdriver (φ2 mm).
Manufacturer reserves the right to change technical specifications.
Configuration notice — microscopes are assembled per user requirements
Compound microscopes are typically configured and assembled according to the user’s application and required accessories.
The official PDF technical specification defines the exact configuration, included components and available options for each model/variant.
Content shown on this website is provided for general informational purposes only and may not represent the final delivered configuration.
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