Shortpass filters, also known as IR-cut filters, transmit shorter visible wavelengths while blocking longer ones such as near-infrared (NIR) and infrared (IR). That makes them essential for maintaining accurate color rendition and preventing the sensor saturation that high-intensity IR radiation would otherwise cause. They are part of our wider range of optical bandpass filters, and they can be paired with longpass filters to create a custom bandpass window.
Shortpass Filter Features and Applications
JNS shortpass filters are engineered for repeatable optical performance in high-intensity and thermal environments. Each filter delivers a sharp transition between transmitted and blocked wavelengths, durable dielectric coatings that hold up in harsh conditions, and reflective characteristics suited to high-intensity illumination setups. Because they are often designed for use at a specific angle of incidence, they hold their performance where it matters most in the optical path.
Common applications include digital camera and machine vision color correction, fluorescence excitation and spectroscopy, and projection systems and thermal management, where they act as hot mirrors. They are available in a wide range of sizes and mounts and can be customized to specific requirements.
Why Engineers Choose JNS for Shortpass Filters
JNS combines in-house glass processing with advanced coating capabilities, so we control the part from raw substrate to finished filter. We supply OEMs, integrators, and research teams across defense, life sciences, industrial inspection, and consumer optics, and we can move from prototype samples to production volume on the timelines those programs run on. If your design calls for a specific cut-off wavelength, a tight angle of incidence, or a custom mount that no catalog part covers, send us the spec and we will build to it.