Olympus CX31RBSF Microscope

Olympus CX31RBSF

This listing is for the Olympus CX31RBSF Microscope

The unit is in full working condition and is ready for immediate use

Overview

The Olympus CX31RBSF is an upright, binocular compound biological microscope, part of Olympus’s CX series known for its durable, ergonomic design and high-quality optics tailored for educational and routine clinical use.

Key Features & Specifications

Optical System & Image Quality

Utilizes the UIS 2 (Universal Infinity System) optical system, delivering bright, high-contrast images with excellent field flatness.

Equipped with Planned Achromat (PLCN) objectives offering superior sharpness and clarity across the field of view.

Features integrated anti-fungal treatment on optics to preserve performance in high-humidity environments.
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Optical Components

Eyepieces: Wide‑field binocular type (Field Number = 20), with a 30° inclination and interpupillary adjustment between 48‑75 mm.

Objectives (typical standard set):

Plan Achromats at 4×, 10×, 40×, and optionally 100× oil immersion (in some configurations).

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Condenser: Built‑in Abbe condenser with NA of 1.25 (with oil immersion) and aperture iris diaphragm for precise illumination control.

Illumination & Stage

Comes with a built‑in Köhler illuminator using a 6 V, 30 W halogen bulb.

Stage: Rackless design with a double-slide holder, complete with ergonomic tactile grips for smooth X‑Y movement; stage travel approx. 76 mm × 50 mm.

Ergonomics & Build Quality

Featuring a rigid Y-frame, low-positioned coaxial coarse/fine focusing knobs, and pre‑focus upper limit to prevent contact with slides.

Integrated hand grips make transport within labs easy and safe.

Some models in the CX31 line include tilting binocular tubes, though CX31RBSF is typically fixed

Dimensions & Operating Conditions

Approx. 233 mm (W) × 411 mm (H) × 367.5 mm (D), weighing around 7.7–8 kg.

Designed for indoor use at altitudes up to 2000 m, ambient temperature range 5 °C to 40 °C, with humidity restrictions depending on temperature.