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Infrared Filter Technology
Understanding the science behind Visualplas infrared optical solutions. Our advanced materials enable precise wavelength control for next-generation sensing and imaging applications.
IR Pass Filters
Allow transmission in specific wavelengths while blocking unwanted light
IR Pass Filters are designed to transmit infrared radiation within specific wavelength bands while effectively blocking visible light and other unwanted spectral regions. This selective transmission makes them essential for applications requiring precise IR detection without interference from ambient light sources. Our IR Pass filters utilize advanced multi-layer thin film coating technology, achieving transmission rates above 90% in target wavelength ranges while maintaining optical density greater than 4.0 for blocked wavelengths.
Wavelength range: 700nm – 1100nm
Transmission: >90%
Blocking OD: >4.0
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IR Block Filters
Prevent unwanted infrared light in cameras and sensors
IR Block Filters (also known as IR Cut filters) are essential components for digital imaging systems. They block infrared wavelengths that can cause color distortion and image degradation in CMOS and CCD sensors. Our IR Block filters feature steep cut-off characteristics and excellent visible light transmission, ensuring accurate color reproduction in smartphone cameras, security cameras, and machine vision systems.
Cut-off wavelength: 650nm – 700nm
Visible transmission: >92%
IR rejection: >99%
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IR Reflective Film
Efficiently reflects IR light for smart devices and industrial applications
IR Reflective Films provide superior thermal management by reflecting infrared radiation away from sensitive components. Unlike absorptive filters, reflective films minimize heat buildup and are ideal for applications requiring efficient thermal control. Our proprietary coating technology enables high reflectivity across broad IR bands while maintaining optical clarity in visible wavelengths, making them perfect for smart windows, automotive glazing, and display applications.
IR reflectivity: >85%
Visible transmission: >70%
Thickness: 50-200 microns
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Applications Overview
Smart sensors, camera modules, robotics, industrial automation
Smart Sensors
Proximity sensors, gesture recognition, ambient light sensing
Camera Modules
Smartphone cameras, security cameras, automotive imaging
Machine Vision
Quality inspection, barcode reading, automated guidance systems
Robotics
LiDAR systems, obstacle detection, autonomous navigation
Frequently Asked Questions
What wavelength ranges are supported?
How to select the right IR filter for my application?
What substrate materials are available?
Can I request custom specifications?
Need Custom Specifications?
Contact our engineering team to discuss custom wavelength specifications, substrate materials, and volume production requirements.
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