The INV-3I Inverted Microscope is designed for observing living cells and specimens directly in culture vessels such as flasks, Petri dishes and multi-well plates. It combines an infinity optical system, 30° inclined trinocular head, quintuple nosepiece, long-working-distance objectives, phase-contrast capability and an attachable mechanical X-Y stage.

Product Overview

The INV-3I Inverted Microscope is designed for routine cell observation, tissue culture and advanced laboratory microscopy where specimens need to be examined directly inside culture vessels. Its inverted configuration positions the objectives below the specimen, making it suitable for applications where conventional slide preparation is impractical.

The microscope features an infinity optical system and a 30° inclined trinocular head with interpupillary adjustment from 48–75 mm. The quintuple nosepiece accommodates multiple objectives, including long-working-distance and phase-contrast objectives.

An ELWD condenser with NA 0.3 and 72 mm working distance provides illumination through culture vessels. Removing the condenser provides approximately 150 mm of free space, allowing larger vessels to be accommodated.

The microscope includes a fixed 10X–20X phase annulus plate for phase-contrast observation. Its attachable mechanical stage provides 120 × 78 mm X-Y movement, while coaxial coarse and fine focusing provides controlled specimen focusing with 0.002 mm fine graduation.

The optical combination includes an EW10X/22 extra-wide-field eyepiece, LWD Infinity Plan 4X and 40X objectives, and Infinity Plan Phase 10X and 20X objectives. A 6V/30W halogen illumination system with blue, green and ground-glass filters completes the standard configuration.

Key Features & Benefits

• Inverted optical design
• Infinity optical system
• 30° inclined trinocular head
• 48–75 mm interpupillary adjustment
• Quintuple nosepiece
• ELWD condenser, NA 0.3
• 72 mm condenser working distance
• Approximately 150 mm free space without condenser
• Phase contrast for 10X and 20X
• LWD Infinity Plan objectives
• Attachable mechanical X-Y stage
• 120 × 78 mm stage movement
• Coaxial coarse and fine focusing
• 0.002 mm fine-focus graduation
• 6V/30W halogen illumination
• Blue, green and ground-glass filters

4. Technical Specifications

5. Applications

• Cell culture observation
• Tissue culture laboratories
• Living-cell observation
• Cell morphology studies
• Cell health and confluency monitoring
• Pharmaceutical research
• Drug discovery research
• Cell-based screening
• Cytotoxicity studies
• Biotechnology research
• Clinical laboratory research
• Aquatic biology
• Environmental microbiology
• Food and beverage microbiological quality control
• Fertility and IVF research
• University cell biology laboratories

6. Suitable For

• Biotechnology laboratories
• Tissue culture facilities
• Pharmaceutical research laboratories
• Clinical research laboratories
• University and academic laboratories
• Cell biology research facilities
• IVF and fertility research laboratories
• Food and beverage QC laboratories
• Aquatic biology laboratories
• Environmental research laboratories

7. Product Benefits

• Inverted optical configuration: Allows specimens to remain inside culture vessels during observation.
• Infinity optical system: Provides an infinity-corrected optical platform for laboratory microscopy.
• Long working distances: LWD objectives and the ELWD condenser accommodate culture vessels and containers.
• Phase-contrast capability: Supports observation of suitable unstained and transparent specimens.
• Trinocular configuration: Provides a dedicated optical path for digital image documentation using a compatible camera.
• Quintuple nosepiece: Allows multiple objectives to remain readily available during observation.
• Mechanical X-Y stage: Enables controlled positioning across culture vessels.
• Precision focusing: Coaxial coarse and fine adjustment supports accurate focusing.
• Large condenser clearance: Removing the condenser provides approximately 150 mm of free space.
• Flexible illumination: Blue, green and ground-glass filters provide additional illumination options.