Description
Olympus CX23 Biological Microscope
Reliable Performance for Education, Clinical Work, and Routine Research
The Olympus CX23 Biological Microscope is a robust, user-friendly upright microscope designed to meet the daily demands of educational laboratories, clinical environments, and routine biological research. As the successor to the CX22, the CX23 combines Olympus optical excellence with a durable, ergonomic design, delivering consistent image quality and dependable operation for students, educators, and professionals alike.
Purpose-built for high school, university, and training laboratories, the CX23 offers outstanding optical performance while remaining affordable and easy to operate—making it an ideal microscope for intensive classroom use and routine laboratory workflows.


User-Friendly Design with Outstanding Optical Performance
The CX23 is engineered for intuitive operation, ensuring safe and comfortable use even for beginners. Its ergonomic layout allows smooth handling throughout long observation sessions, while maintaining precision and stability. The microscope features a large field number (FN) of 20, enabling users to observe a wider area of the specimen compared to standard microscopes in its class—ideal for teaching and routine sample examination.
Flat, High-Quality Imaging with Plan Achromat Objectives
Equipped with Plan Achromat objectives, the CX23 delivers excellent image flatness across the entire field of view. This ensures sharp, evenly focused images from edge to edge, which is essential for accurate observation in applications such as histology, microbiology, and cytology. The optical system provides clear contrast and faithful color reproduction, supporting detailed specimen analysis at multiple magnifications.
Uniform LED Illumination with Natural Color Rendering
The built-in LED illumination system provides stable, uniform lighting with a long operational lifetime of up to 20,000 hours and low power consumption. Its reduced blue light output helps preserve natural sample colors, particularly beneficial for H&E-stained specimens, ensuring comfortable viewing and accurate interpretation during extended use.
Built for Durability and Classroom Safety
To protect both the microscope and specimens, the CX23 incorporates a torque release function that prevents damage if excessive force is applied to the focus knobs or stage. The all-metal focusing mechanism with brass fine-focus gears ensures long-term reliability, even under heavy daily use in teaching laboratories.
Additionally, critical optical components—including objectives, eyepieces, and the observation tube—feature anti-fungal treatment, making the CX23 well-suited for operation in warm and humid environments while maintaining optical clarity over time.
A Versatile and Dependable Laboratory Microscope
The Olympus CX23 supports essential observation techniques such as brightfield microscopy and can be configured for advanced applications like phase contrast, offering flexibility for a wide range of biological specimens. With its compact footprint, durable construction, and dependable optics, the CX23 is a trusted solution for educational institutions, clinical labs, and routine research settings seeking long-term performance without complexity.
Technical Specifications
| Specification | Details |
| Manufacturer | Olympus |
| Model | CX23 |
| Microscope Type | Upright biological microscope |
| Application | Education, clinical labs, routine research |
| Observation Head | Binocular, 30° inclined, 360° rotatable |
| Eyepieces | 10×, Field of View 20 mm |
| Nosepiece | Reversed quadruple nosepiece |
| Objectives | Plan Achromat 4×, 10×, 40×, 100× Oil |
| Field Number | FN 20 |
| Condenser | Abbe condenser, NA 1.25 |
| Focus Type | Coaxial coarse & fine focus |
| Protection | Torque release & upper limit stop |
| Gear Construction | All-metal gears, brass fine focus |
| Stage Type | Rackless mechanical stage |
| Light Source | Built-in LED illumination |
| LED Lifetime | Approx. 20,000 hours |
| Brightness Control | Variable intensity |
| Anti-Fungal Treatment | Objectives, eyepieces, observation tube |
| User Safety | Torque release prevents damage |
| Energy Consumption | Low power consumption |
| Warranty | 5 Year Mechanical & 1 Year Electrical |





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