KERN OBL 137 transmitted light microscope
The KERN OBL 137 transmitted light microscope is designed for demanding applications in laboratories in the fields of research, teaching and quality assurance. Its robust construction and sophisticated, ergonomic design ensure stability during continuous operation and enable comfortable working even during long analysis sessions. With an optimised infinity optical system, flexibly expandable equipment and versatile accessories, this microscope stands out from competing products, especially when it comes to precision, durability and future-proofing.
State-of-the-art optics for professional microscopy
Thanks to infinity optics technology, the microscope offers an outstanding field of view with excellent image sharpness and high contrast. The trinocular tube allows eyepieces and camera adapters to be used at the same time - ideal for digital documentation and live presentations in everyday laboratory work or in education. The 3W LED transmitted light illumination is continuously dimmable, allowing each sample to be optimally illuminated. The mechanical cross table with two slide positions and the coaxial coarse and fine drive with a minimum focusing accuracy of 0.002 mm allow comfortable and precise working under a wide range of conditions. The fixed 1.25 Abbe condenser supports fast and reliable Köhler illumination and provides uniform, structured specimen illumination.
Important technical features at a glance
- Optical system: Infinity
- Tube type: Trinocular (for simultaneous camera and eyepiece use)
- Eyepiece magnification: 10x, field of view 20 mm
- Objective turret: 4 screw-in positions
- Illumination: 3W LED transmitted light (dimmable intensity)
- Condenser: 1.25 NA fixed ABBE condenser, Köhler-compatible
- Coaxial coarse and fine drive with minimum fine drive of 0.002 mm
The dimensions of 394 x 185 x 377 mm ensure a compact footprint while maintaining high stability. The microscope deliberately dispenses with a reflected light option and focuses entirely on the transmitted light range - ideal for biological and medical applications. Accessories such as phase contrast, dark field and fluorescence modules further expand the range of uses.
The sturdy metal design, dust cover and multilingual documentation underline its suitability for everyday use and make care and maintenance straightforward.
Compliance with international standards
The laboratory device meets all relevant requirements for professional laboratory instruments and is CE-compliant. It complies with applicable DIN standards for microscopes and thus offers maximum safety, quality and investment protection in intensive user operation.
Versatile applications in everyday laboratory work
The transmitted light microscope is used in numerous disciplines and for different preparations. Its flexibility offers numerous advantages for the following areas of application:
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Biological research: Analysis of cell cultures, bacteria and microorganisms; detailed representation of cell structures (e.g. yeast cells, single-celled parasites).
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Pathology and histology: Precise evaluation of tissue samples, detection of dye-labelled cell components using an optional fluorescence unit; examination of tumour tissue and biopsies.
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Quality assurance/industry: Material analysis of thin sections of metal, polymers or composites; inspection of coatings and surface structures.
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Forensics and criminalistics: Securing evidence, examination of the finest particles or fibres from crime scenes, analysis of dye residues or microparticles.
With the selectable accessory modules, classic methods such as phase contrast (e.g. for living, unstained cells in culture media) and dark field microscopy (e.g. for water analysis, transparent microorganisms) can also be implemented.
Frequently asked questions (FAQs)
How is a camera connected?
A C-mount adapter can be attached to the trinocular tube for image documentation; suitable adapters are available as optional accessories.
Is the microscope also suitable for beginners?
With its clear menu navigation, easy-to-understand instructions and precise mechanics, the model is also suitable for beginners, but is primarily aimed at advanced and professional users.
How is the illumination adjusted?
The powerful 3W LED can be dimmed continuously via a rotary control, allowing the illumination intensity to be adjusted to suit a wide variety of specimens.
Is it possible to switch between standard, phase contrast and dark field?
With the appropriate condenser attachments and filter modules (sold separately), the respective examination methods can be easily implemented.
Which accessories are compatible with the device?
In addition to various contrast and filter units, eyepieces, objectives, camera systems and dust covers are also available for expansion.
Does the condenser need to be re-centred frequently?
The ABBE condenser is pre-centred and thus ensures long-lasting, precise Köhler illumination, which greatly simplifies everyday operation.
What are the requirements for the installation site?
A stable, low-vibration workstation and normal laboratory ambient temperatures provide the best working conditions. Conclusion The KERN OBL 137 transmitted light microscope sets standards for routine and special applications in biomedical, industrial and forensic laboratory practice. Precision, versatility and stability are combined with convenient operation, durable mechanics and accurate optics. Thanks to its flexible expandability, the model is suitable for both classic transmitted light methods and advanced contrast techniques. This makes it a reliable partner for professional microscopy at the highest level.
