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Optical Bandpass Filters for Machine Vision Applications

Optical Bandpass Filters are spectrally selective components designed to transmit specific wavelengths of light while blocking unwanted spectral content. These filters are fully customizable in terms of center wavelengths and bandwidths, making them essential for machine vision systems requiring precise spectral discrimination. Applications include automated inspection systems, quality control imaging, color sorting, multispectral imaging, and industrial vision systems where specific wavelength isolation enhances contrast and detection accuracy. Optical Bandpass Filters deliver consistent optical performance across the entire clear aperture, ensuring uniform image quality throughout the field of view.

Delta Optical Thin Film has been pioneering the design and manufacture of robust optical thin film components for high-volume industrial applications since the early 1970s. Our expertise in optical interference bandpass filters makes us a trusted partner for machine vision system integrators and manufacturers requiring reliable, high-performance spectral filtering solutions.

Most of our products are custom-engineered filters tailored to specific machine vision requirements, and the examples shown on this webpage serve as application references. We consistently deliver value to our customers through custom-designed solutions optimized for their unique imaging and detection challenges. Delta Optical Thin Film specializes in optical bandpass filters with passbands spanning 300 nm to 1700 nm, covering the UV, visible, and near-infrared spectral regions critical for machine vision applications.

EMVA 1288 / ISO 24942 – Hands-On Table-Top Experience

1. Discover the benefits of detailed image quality and image sensor measurements. Get hands-on with our measurement devices to see how easy it is to get your own results – and why they are essential for development, research, and quality assurance.
2. Find out how the proven EMVA 1288 standard is now evolving into the international ISO 24942 standard, opening up new opportunities and recognition across the industry.
3. Talk directly with the experts on site and find out how your company or research organization can play an active role in shaping the future of this standard.

iiM GmbH – part of Union Park’s holding company Exaktera – is developer, manufacturer and distributor of high-quality, high-performance products for industrial image processing.

Based in Suhl, Germany, we develop and manufacture high-performance and highly functional LED illumination under the LUMIMAX^® brand for Machine Vision applications in a very wide range of industrial sectors, including automotive, semiconductor, pharma, and the food and beverage industry.

A further department develops and markets special measuring technology and peripherals for the cable and wire industry to record geometric features, particularly on insulating covers and cable sheathing, in accordance with standards.

NovoViz is a Swiss fabless semiconductor company pioneering computational single-photon imaging technology. We deliver robust, scalable SPAD sensor solutions for machine vision, industrial automation, and edge computing. Our mission is to make high-performance single-photon technology widely accessible and off-the-shelf, setting new standards for precision, reliability, and seamless integration. 

QRM GmbH manufactures specialized phantoms for a wide range of applications, including industrial CT, micro CT for small animal research, as well as X-ray diagnostics, radiation therapy, and bone density measurements. Since April 2020, QRM has been a subsidiary of PTW Freiburg GmbH. With more than 25 years of experience, the company’s core competence lies in producing customized phantoms from a single source — covering development, design, construction, production, and quality assurance.