NIKON Eclipse E100 Biological Upright Microscope with Dual-Eyepiece LED Illumination

Overview

The NIKON Eclipse E100 is a high-performance upright biological microscope engineered for routine laboratory applications—including educational instruction, clinical screening, and quality control in life science research environments. It employs Nikon’s proprietary CFI (Chromatically Corrected, Fully Infinite) optical system, which delivers diffraction-limited image fidelity across the entire field of view through rigorous correction of chromatic aberration and field curvature. Designed as a cost-optimized yet optically rigorous platform, the E100 maintains compatibility with standardized ISO 8578 and JIS B 7131 metrological specifications for microscope performance verification. Its upright configuration supports transmitted-light observation of fixed or live specimens mounted on standard glass slides, enabling rapid setup and reproducible imaging workflows without complex alignment procedures.

Key Features

• CFI Infinity-Corrected Optics: Ensures consistent resolution and contrast across magnifications from 40× to 1000× (with oil immersion), with extended working distance and improved numerical aperture (NA) characteristics.
• LED Illumination System: Provides stable, flicker-free illumination at constant color temperature (≈6000 K) across all intensity levels; eliminates infrared emission and thermal drift—critical for prolonged observation and sensitive live-cell assays.
• CFI BE Plan Achromat Objectives: Specially optimized for the E100 platform, these objectives feature anti-fungal coatings and deliver flat-field, color-corrected imagery at 4×, 10×, 20×, 40×, 60×, and 100× (oil); optional 100× phase contrast objective available.
• Ergonomic Siedentopf Binocular Head: 30° inclination, adjustable interpupillary distance (47–75 mm), and 34 mm eye-point height range accommodate diverse user anthropometry; diopter adjustment per eyepiece ensures individual visual acuity compensation.
• Abbe Condenser (NA 1.25): Integrated position-indexed aperture diaphragm and filter slot (33 mm) enable precise Köhler illumination setup; labeled objective positions streamline switching between magnifications without refocusing the condenser.
• Coaxial Coarse/Fine Focus Mechanism: Micrometer-calibrated fine focus (2 µm per division), 22 mm total vertical travel, and adjustable coarse-focus torque enhance operational repeatability and reduce operator fatigue during extended use.

Sample Compatibility & Compliance

The E100 supports standard histological preparations (e.g., H&E-, Giemsa-, or DAPI-stained sections), unstained wet mounts, and live microorganisms (e.g., Paramecium, Chlamydomonas) under brightfield and optional phase contrast modes. Its mechanical stage accommodates standard 76 × 26 mm slides and 24 × 50 mm coverslips. The instrument conforms to IEC 61000-6-3 (EMC emissions) and IEC 61000-6-2 (immunity) standards. Anti-mold treatment on optical components (objectives, eyepieces, and tube lens) complies with ISO 8597 requirements for humidity-resistant instrumentation in tropical or high-humidity laboratory settings.

Software & Data Management

While the E100 is a standalone optical instrument, its trinocular port (E2-TF head variant) enables seamless integration with third-party digital imaging systems compliant with USB 3.0 or HDMI protocols. When paired with FDA 21 CFR Part 11–capable acquisition software (e.g., NIS-Elements BR or open-source MicroManager), the system supports audit-trail logging, user-access controls, and electronic signature workflows—meeting GLP and GMP documentation requirements for regulated QC/QA laboratories. Image metadata (objective ID, magnification, exposure time, date/time stamp) is embedded automatically into TIFF or OME-TIFF files.

Applications

• Undergraduate and graduate teaching laboratories: Demonstrating cell morphology, mitotic stages, tissue architecture, and microbial motility.
• Clinical cytology screening: Rapid assessment of blood smears, urine sediments, and Pap test preparations.
• Pharmaceutical QC: Verification of particle size distribution in suspension formulations and detection of foreign particulates in parenteral solutions.
• Agricultural diagnostics: Identification of fungal hyphae, nematodes, and plant pathogen structures in leaf sections or root samples.
• Environmental microbiology: Enumeration of protozoa and algae in water quality monitoring programs.

FAQ

Is the E100 compatible with digital camera systems?
Yes—the trinocular version (E2-TF head) accepts standard C-mount or F-mount adapters for integration with scientific CMOS/CCD cameras.
Does the LED illumination support Köhler alignment?
Yes—the Abbe condenser includes a centerable aperture diaphragm and field diaphragm, enabling full Köhler illumination optimization per ISO 8578 guidelines.
Can the E100 be used for oil immersion microscopy?
Yes—CFI BE 100× oil-immersion objectives are included; the condenser NA (1.25) is fully matched for optimal resolution at 1000× magnification.
What maintenance is required for long-term optical stability?
No lamp replacement is needed for >15 years under typical usage; periodic cleaning of optical surfaces with lens-grade solvents and inspection of anti-fungal coatings every 12 months is recommended per Nikon Service Bulletin SB-E100-2022.
Is phase contrast available as a factory-installed option?
Phase contrast rings for 10× and 40× objectives are standard; 100× phase contrast and darkfield annuli are optional accessories ordered separately.