Description
Technical Specifications – Junior Student Monocular Microscope (BM-2)
| Specification | Details |
|---|---|
| Eyepieces | 10X and 15X Huygenian eyepieces |
| Objectives | Achromatic 10X and 40X |
| Nosepiece | Triple revolving nosepiece with click stops |
| Stage | SS stage clips to firmly hold slides |
| Focusing | Coarse adjustment by rack & pinion; fine adjustment by screw lever mechanism |
| Condenser | Abbe condenser NA 1.25 with iris diaphragm and swing-out filter holder |
| Illumination | Arc reflector for natural light |
| Packing | Molded Styrofoam box |
| Use Case | Student learning, practical biology, classroom demonstrations |
Key Features
Smooth and comfortable monocular viewing for beginners
Supplied with 10X and 15X Huygenian eyepieces
Triple revolving nosepiece with click stops for easy magnification changes
Achromatic 10X and 40X objectives for clear image quality
Stable stage with stainless steel clips to secure slides
Coarse and fine focusing systems for precise observation
Abbe condenser (NA 1.25) with iris diaphragm for efficient light control
Swing-out filter holder for enhanced contrast
Arc reflector for natural light illumination
Packed safely in a molded Styrofoam box for classroom portability
Working Principle
The BM-2 works on the transmitted light observation principle. Light from the arc reflector below the stage passes upward through the condenser. The Abbe condenser focuses the light onto the slide, improving clarity and contrast.
The specimen image then travels through the objective lens. The achromatic lenses reduce color distortion, ensuring a sharp and accurate image.
The magnified image passes through the eyepiece for final enlargement, giving students a clear view of cell structures and fine slide details.
The coarse focusing mechanism moves the observation tube vertically using a rack-and-pinion system, while the fine focusing screw allows micro-adjustments. This dual focusing system helps young learners achieve accurate focus with ease.
Use Cases
School biology practical sessions
Student introduction to microscopy
Study of plant tissues, microorganisms, and prepared slides
Classroom demonstrations and lab experiments
Basic microscopy skill development
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