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Olympus CKX41 Inverted Phase Contrast Microscope with UIS2 Infinity Optics and Trinocular Head

UsedOlympusMicroscope accessoriesUnited States

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Optical System
UIS2/UIS (Universal Infinity System) optical system
Illumination
Built-in transmitted Koehler illumination High-intensity halogen bulb 6V30WHAL (PHILIPS 5761) (Average lifetime: Approx. 100 hr. when used as directed) Output rating: 6 V 30 VA (DC) Input rating: 100-120/220-240 V, 0.85/0.45 A, 50/60 Hz
Focusing
Vertical movement of revolving nosepiece (stage height fixed) Coarse and fine adjustment knobs (provided with rotation tension adjustment mechanism) Stroke per rotation (from focal point on stage surface): 7 mm upward and 2 mm downward
Ultra long working distance condenser
NAO.30 W.D. 72 mm (built in)
Power
115V 50/60Hz
All 9 specifications
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Specifications 9

Brands
Olympus
New/Used
Used
Optical System
UIS2/UIS (Universal Infinity System) optical system
Illumination
Built-in transmitted Koehler illumination High-intensity halogen bulb 6V30WHAL (PHILIPS 5761) (Average lifetime: Approx. 100 hr. when used as directed) Output rating: 6 V 30 VA (DC) Input rating: 100-120/220-240 V, 0.85/0.45 A, 50/60 Hz
Focusing
Vertical movement of revolving nosepiece (stage height fixed) Coarse and fine adjustment knobs (provided with rotation tension adjustment mechanism) Stroke per rotation (from focal point on stage surface): 7 mm upward and 2 mm downward
Ultra long working distance condenser
NAO.30 W.D. 72 mm (built in)
Dimensions
12″x21″x20″
Weight
21 lbs
Power
115V 50/60Hz

Product description

Compact inverted phase contrast microscope with UIS2 optics, 30W halogen illumination for routine cell culture observation.

The Olympus CKX41 Inverted Phase Contrast Microscope is designed for routine live-cell imaging and cell culture observation, featuring advanced UIS2/UIS infinity optics with a pre-centered phase contrast setup for consistent, high-contrast images. Its inverted optical design supports the examination of culture vessels and plates without adjusting the stage position, ideal for biomedical engineering and molecular biology workflows.

Key technical specifications include:

  • Optical system: UIS2 infinity optical system optimized for phase contrast microscopy, ensuring sharp imaging quality essential for fluorescence analysis and cell imaging.
  • Illumination: Built-in Koehler transmitted illumination powered by a 30W halogen bulb (6V30WHAL), with frosted and heat-absorbing filters for stable, bright light.
  • Focusing mechanism: Vertical movement focusing via revolving nosepiece, maintaining stage stability with coarse and fine adjustment knobs featuring tension control. Stroke per rotation provides 7 mm upward and 2 mm downward travel for precise focusing.
  • Working distance: Ultra-long working distance condenser NA0.30 W.D. 72 mm supports various sample containers in live-cell and biotechnology applications.
  • Ergonomics: Tilting trinocular head enables comfortable observation and supports camera attachment for digital imaging and documentation, crucial for clinical diagnostics and bioprocessing documentation.
  • Footprint and dimensions: Compact bench footprint measuring 12″x21″x20″ (WxDxH), weighing approximately 21 lbs, suitable for standard lab benches in cell biology and synthetic biology research environments.
  • Power requirements: Operates at 115V, 50/60Hz, compatible with common lab power standards.

This microscope is widely used in *molecular diagnostics*, *biopharmaceutical production pipelines*, and *live-cell monitoring*, making it a reliable tool for biotechnology professionals requiring stable phase contrast imaging in routine laboratory workflows. Its straightforward operation and stable optical configuration make it ideal for daily use in research, clinical, and teaching laboratories focused on cell morphology and culture viability assessment.

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Frequently asked questions

How long does laboratory equipment typically last?

With a service contract, ten to fifteen years is normal for most benchtop instruments. Detectors and pumps are the parts that wear first.

Can I get service for older equipment?

Often, yes. Verified suppliers frequently work with service partners converting the instrument. If applicable, we can list servicing options alongside the offer.

Where can I buy parts?

Ask a scientist through the request button. Parts are often available even when the instrument itself is discontinued.

What is the typical lead time for refurbished equipment?

Two to six weeks, depending on refurbishment scope and whether calibration is included.

Does laboratory equipment ship internationally?

We ship to 38 countries. Crating and customs handling are quoted with the instrument.

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Last updated 5 November 2026