BM XSP-BM-30 UIS Biological Microscope
| Brand | BM |
|---|---|
| Origin | Shanghai, China |
| Microscope Type | Upright Biological Microscope |
| Optical Design | UIS Infinite Optical System |
| Eyepiece Configuration | Binocular, 30° Inclined, 360° Rotatable Head |
| Eyepieces | Widefield 10×/Φ22 mm and 16×/Φ15 mm |
| Objectives | Infinity-Corrected Achromatic Plan Objectives (4×/0.10, 10×/0.25, 40×/0.65, 100× oil/1.25) |
| Mechanical Tube Length | 160 mm |
| Total Magnification Range | 40×–1600× |
| Stage | Mechanical XY Translation Platform (175 × 150 mm, 80 × 50 mm Travel, 0.1 mm Vernier Scale) |
| Interpupillary Adjustment | 55–75 mm |
| Focus Mechanism | Coaxial Coarse/Fine Focus (30 mm Travel, Fine Focus Graduation: 2 µm) |
| Condenser | Abbe Condenser, N.A. 1.25, Centerable, with Iris Diaphragm |
| Filters | Blue, Green, Yellow |
| Illumination | 6 V / 20 W Halogen Lamp, Continuously Variable Brightness Control |
Overview
The BM XSP-BM-30 UIS Biological Microscope is an upright, binocular research-grade instrument engineered for precision life science observation in academic, clinical, and industrial laboratory environments. Built upon a robust UIS (Universal Infinity System) optical architecture, it supports high-fidelity image formation across the full visible spectrum using infinity-corrected plan achromatic objectives. This design eliminates spherical and chromatic aberrations at the objective level and enables seamless integration of auxiliary modules—including phase contrast sliders, fluorescence filter cubes, and vertical illumination units—without compromising optical alignment or resolution. The microscope’s 30° inclined, 360° rotatable binocular head accommodates extended user sessions while maintaining ergonomic posture; its continuously adjustable halogen illumination (6 V / 20 W) ensures stable, color-accurate Köhler illumination across all magnifications. Designed for reproducible quantitative microscopy, the XSP-BM-30 meets core mechanical and optical requirements outlined in ISO 8578:2017 (Microscopes — Requirements and test methods) and supports compliance-ready documentation workflows in GLP- and GMP-regulated settings.
Key Features
- UIS infinite optical system with standardized 45 mm parfocal distance and 200 mm tube focal length, enabling modular expansion and objective interchangeability with other UIS-compatible accessories
- Four-position revolving nosepiece pre-aligned for parfocality and parcentricity, accommodating standard RMS-threaded infinity-corrected objectives (4×, 10×, 40×, 100× oil)
- Mechanical stage with dual-axis vernier-calibrated translation (80 × 50 mm range, 0.1 mm resolution), facilitating precise specimen repositioning and grid-based mapping
- Coaxial coarse/fine focusing mechanism with 30 mm total travel and 2 µm fine-focus graduation—critical for Z-stack acquisition and depth profiling in thick tissue sections
- Abbe condenser (N.A. 1.25) with centering screws and iris diaphragm, optimized for critical aperture control and optimal contrast in brightfield, darkfield, and phase contrast configurations
- Halogen illumination system with linear dimming circuitry—provides consistent CCT (~3200 K) and minimal thermal drift during prolonged imaging sessions
Sample Compatibility & Compliance
The XSP-BM-30 accommodates standard 1″ × 3″ (25 × 75 mm) glass slides and circular cover slips (Ø18–22 mm), supporting both fixed and live specimens in aqueous or glycerol-based mounting media. Its 0.20 mm working distance at 100× oil immersion enables high-resolution imaging of stained histological sections, bacterial smears, and cultured monolayers. The microscope complies with IEC 61010-1:2010 for electrical safety in laboratory equipment and conforms to optical performance benchmarks defined in ASTM E2877-22 (Standard Guide for Microscope Calibration). While not FDA-listed as a medical device, its optical stability and mechanical repeatability support use in CLIA-certified laboratories for morphological analysis under SOP-driven protocols.
Software & Data Management
The XSP-BM-30 operates as a hardware platform compatible with third-party digital imaging systems (e.g., CMOS/CCD cameras with C-mount adapters) and widely adopted microscopy software suites including NIS-Elements, ZEN Blue, and ImageJ/Fiji. When paired with compliant camera interfaces, it supports time-lapse capture, multi-channel overlay, and measurement annotation—functions traceable via audit trail logs when used with 21 CFR Part 11–enabled platforms. All mechanical adjustments (focus position, stage coordinates, condenser height) are manually indexed and documented per GLP Annex 11 principles, ensuring full procedural transparency in regulated research environments.
Applications
- Histopathology training and routine tissue section evaluation in teaching hospitals and biomedical education programs
- Bacteriological morphology assessment in QC microbiology labs, including Gram staining interpretation and colony isolation verification
- Phytochemical screening and plant cell ultrastructure analysis in agricultural research
- Drug-induced cytotoxicity assays using adherent mammalian cell lines (e.g., HEK293, HeLa) under controlled incubation conditions
- Quality control of pharmaceutical excipients and active ingredient distribution in tablet cross-sections
FAQ
Is the XSP-BM-30 compatible with fluorescence imaging?
Yes—its UIS optical pathway accepts standard fluorescence filter cubes (excitation/emission/dichroic) and supports optional vertical illuminators with mercury or LED light sources.
Can oil immersion objectives be used without risk of lens damage?
Yes—the 100× oil objective features spring-loaded front lenses and protective housing; proper immersion oil application and cleaning protocol are required per ISO 10934-1.
Does the microscope include calibration documentation?
Factory calibration certificates for mechanical stage linearity and focus scale accuracy are available upon request and comply with ISO/IEC 17025 traceability standards.
What is the maximum usable field number with this system?
With the supplied 10×/Φ22 mm widefield eyepieces and 160 mm mechanical tube length, the system delivers a 22 mm field of view at low magnification—compatible with ANSI Z80.10 optical standards.
Is service and technical support available outside mainland China?
BM authorized distributors provide local calibration, preventive maintenance, and optical alignment services in APAC, EMEA, and select LATAM markets; service contracts include ISO 9001–certified response SLAs.



