Flexible Light Guides

Flexible Light Guides

Precision for Demanding Applications.

Flexible light guides, custom-manufactured to your specifications in outstanding quality. Thanks to years of specialized knowledge and experience in the industry, as well as the highest quality standards, our flexible light guides are used in many different sectors.

Excellent Light Transmission & Precise Control

Efficient Light Transmission

Our products ensure efficient and low-loss light transmission through optimized NA values.

Color-Accurate Imaging

Minimal color shift: Illuminated objects retain their natural color, even with long light guides.

High Light Acceptance

Through an optimized numerical aperture (NA), our light guides capture a maximum amount of light right at the coupling point.

Numerical Aperture (NA) for Your Project

The numerical aperture is a critical factor for the light acceptance and the emission angle of light guides. As our graphic illustrates, the numerical aperture directly influences the angle (θ) at which light enters or exits the light guide:

  • A higher NA allows for a larger acceptance angle, and thus, higher light acceptance.
  • Our light guides are available with different NA values to ensure an optimal match for your specific requirements.

Why Choose Light Guides from FOS Inon Fiber Optics?

Quality “Made in Germany” pays off. Thanks to our proprietary manufacturing and testing processes, we offer custom solutions for numerous applications, from laboratories to aerospace.

Excellent Performance

Optimal performance across various spectral ranges (white light, UV, NIR), achieved through state-of-the-art manufacturing processes and custom concepts tailored specifically for your application area.

Temperature-Resistant

Whether for cold or warm application environments, thanks to special jacketing, our glass fibers remain stable at temperatures ranging from -190°C to 390°C.

Acid-Resistant

Our light guides withstand adverse conditions thanks to their high chemical resistance.

Stable & flexible

Thanks to the flexibility of the fiber optic cables, pressure is not a problem. Their bending strength is enormous, and very small bending radii are possible, ensuring the fiber optic cables remain reliably in use for a long time.

Sustainable

FOS INON Optics is committed to using the most environmentally friendly manufacturing, logistics, and communication processes possible. Think green!

Support and Experience

You are not just buying a product; you are benefiting from our expertise and extensive experience in the fiber optics industry. Our team of experts is happy to advise you and will support you in the planning and implementation of your projects.

Manufacturing Process

To ensure our light guides and fiber optic products meet the highest standards, we rely on a specialized manufacturing process. This allows us to guarantee exceptional chemical and tactile robustness so they can perform optimally in their respective environments. Precision is a critical factor in this, true to our motto: “Making the impossible happen.”

Materials Used

  • Borosilicate: Glass with high temperature resistance and chemical resilience.
  • PMMA (Polymethylmethacrylate): A thermoplastic, lightweight plastic with high light transmittance.
  • Silica-Hard Clad: A robust plastic coating for improved strength and durability.
  • Silica-Silica for UV and NIR Wavelengths: Our specialized glass fibers, optimized for the transmission of light in the ultraviolet (UV) and near-infrared (NIR) ranges.
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PMMA is a thermoplastic material, known under brand names such as Plexiglas or acrylic glass. In fiber optics, PMMA is used for:

  • Flexible, cost-effective fiber optic cables are used
  • Large core diameters (up to several millimeters)
  • Applications using visible light

PMMA fibers are less temperature-resistant than glass fibers (max. 70-100°C), but significantly more flexible and less expensive. This makes them a particularly good choice for lighting or sensors where extreme temperatures are not present.

What is PMMA?
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Borosilicate (also called “boron glass”) is a special type of glass with a high boron oxide content. It is the same material used to make heat-resistant laboratory glassware and baking molds. In fiber optics, it offers:

  • Excellent chemical resistance to acids and alkalis
  • Good temperature resistance up to approximately 400-500°C
  • Low thermal expansion (less stress during temperature changes)

Ideal for standard industrial applications and lighting.

What is borosilicate?

Optional Specifications:

  • Various apertures available
  • Polarization can be maintained
  • Anti-reflection coating possible
  • Various lengths, diameters, bending radii, converters, and vacuum feedthroughs optional
  • Various connectors and ferrules suitable for industry and medicine
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SMA (Sub-Miniature A) is a standard screw-type connector for fiber optic cables, designed for laboratory equipment and spectrometers. The connector has a 1/4″-36 thread. FSMA is the fiber optic version with a specially protected ferrule for the sensitive fiber end face. Standardized connectors allow you to connect our cables directly to your equipment, or we can manufacture custom connectors for your specific application.

What are SMA and FSMA connectors?
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Silica-silica fibers consist entirely of high-purity quartz glass (silicon dioxide), both the core and the cladding. This construction offers:

  • Extremely high temperature resistance up to 1000°C
  • Optimal transmission in the UV range (below 300 nm)
  • Excellent transmission in the NIR range (1000-2500 nm)
  • Minimal absorption losses

Therefore, these fibers are primarily used in high-performance lasers, UV curing, and spectroscopy.

What does silica-silica mean?

Applications

Our light guides are suitable for a variety of applications where precise light transmission and color fidelity are essential, such as:

  • Medical Technology
  • Industrial Lighting
  • Sensor Technology
  • Photometry

… and much more!

Learn More

Do you require further information, a customized quote, or expert consultation for your project? We are at your disposal at any time.es Angebot oder eine fachkundige Beratung für Ihr Projekt? Wir stehen Ihnen jederzeit zur Verfügung.

FOS Inon fiber optics for precise data transmission and communication.

Reliability doesn’t happen by chance.
At FOS Inon Optics, quality is not just a promise—it is a standard that can be measured. Our development and manufacturing processes for fiber-optic systems are ISO 9001:2015 certified. This establishes the foundation for reliable performance, reproducible results, and trust wherever optical precision is critical.