Junior Student Monocular Microscope (BM-2)
The Junior Student Monocular Microscope (BM-2) is designed to introduce young learners to the fundamentals of microscopy. Built with durable components and clear optical performance, this model helps students observe cell structures, microorganisms, plant tissues, and prepared slides with ease.
Its simple layout, smooth focusing system, and reliable optical clarity make it ideal for classroom demonstrations and daily practical work. The BM-2 ensures that students experience stable focus, bright illumination, and accurate magnification without complexity.
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
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Smooth and comfortable monocular viewing for beginners
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Supplied with 10X and 15X Huygenian eyepieces
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Triple revolving nosepiece with click stops for easy magnification changes
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Achromatic 10X and 40X objectives for clear image quality
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Stable stage with stainless steel clips to secure slides
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Coarse and fine focusing systems for precise observation
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Abbe condenser (NA 1.25) with iris diaphragm for efficient light control
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Swing-out filter holder for enhanced contrast
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Arc reflector for natural light illumination
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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
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School biology practical sessions
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Student introduction to microscopy
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Study of plant tissues, microorganisms, and prepared slides
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Classroom demonstrations and lab experiments
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Basic microscopy skill development
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