Optical filters
for machine vision

Optical filters are precision devices designed to selectively transmit or block specific wavelengths of light. They improve the performance of optical systems by allowing only desired wavelengths to pass while blocking unwanted light. This selective transmission is essential in a wide variety of scientific, medical, and industrial applications.

•    Reproducibility and Reliability: Rely on the consistent performance of our filters for precise results, even after years.
•    Optical precision: Highest flatness and minimal wavefront deformation guarantee images without loss of quality.
•    Wide selection: Choose from a variety of filter types and coatings to meet your specific needs.
•    Flexible sizes: Our filters are available in a variety of diameters to suit your applications.
•    Robust Mechanics: Rely on metal mounts for a durable and reliable filtration solution.
•    Highest reproducibility, reliability and excellent image quality.

Optical filters improve the performance and accuracy of optical systems in many different applications. In fluorescence microscopy optical filters isolate specific fluorescent signals, in spectroscopy optical filters analyze the spectral properties of substances, in medical imaging optical filters improve image contrast and clarity, and in machine vision systems optical filters leverage quality control and inspection processes.

Schneider-Kreuznach offers several types of optical filters that are designed for specific applications:

• Bandpass Filters
• Narrow Bandpass Filters
• Shortpass Filters
• Longpass Filters
• Neutral Density Filters
• Polarizer Filters
• Color Filters
• UV-Cut Filters
• IR-Cut Filters

Optical filters feature materials and coatings with specific transmission and reflection properties. These materials are designed to either transmit certain wavelengths while blocking others or reflect certain wavelengths while transmitting the rest. The design of these filters is based on the principles of interference and absorption, which determine how different wavelengths interact with the filter material.

Optical filters require careful handling to avoid damaging their delicate surfaces. Begin by using a soft air blower to remove loose dust and debris. Next, apply a small amount of lens cleaning solution to a lint-free cloth or lens tissue. Gently wipe the filter surface in a circular motion, starting from the center and moving outward. Avoid using excessive force or abrasive materials that may scratch or damage the filter coating.

Schneider-Kreuznach is a leading manufacturer of optical filters for industrial applications. As the manufacturer of B+W filters, renowned among photographers worldwide, we bring decades of expertise in filter technology to a wide range of industries. Our filters are trusted for their precision, durability and performance in critical applications where optical clarity and reliability are essential. Whether you need standard filters or custom solutions tailored to your specific needs, Schneider-Kreuznach ensures high-quality optical filters that meet your requirements.

BP = Bandpass 

NBP= Narrow Bandpass 

SP = Shortpass 

LP = Longpass 

ND = Neutral Density 

IFK = Industry Filters Käsemann 

HT = High Transmission 

AUF = Polarizer 

E/MRC = "Einfach vergütet"/"Multi Resistant Coating"