LEARNING SHOW

What Causes Reflection Loss in Infrared Optical Systems

Reduce infrared reflection loss by understanding interfaces, coatings, incidence angle, surface quality, material choice, and optical system design.

Night Vision vs Infrared Imaging: A System Designer’s Guide to Wavelengths, Sensors, and Filters

Choosing night vision or infrared imaging? Compare wavelengths, sensors, illumination, filters, image conditions, system limits, and application fit.

Infrared Filters for Night Thermal Imaging: How to Match Passband, Blocking, and Detector Response

Poor filter matching reduces thermal image contrast. Learn how to align passband, blocking, transmission, and detector response for night imaging systems.

How Do Angle of Incidence and Temperature Affect Infrared Narrow Bandpass Filters?

Wavelength shifts can weaken optical performance. Learn how incidence angle and temperature affect infrared narrow bandpass filters and system design.

Infrared Filter Selection Guide: Matching Passbands, Blocking Ranges, and Detectors

Select infrared filters by transmission passband, blocking range, detector response, angle of incidence, temperature, and system requirements.

How to Evaluate NIR-Blocking Coatings: Reflectance, Absorption, and Spectral Testing

Evaluate NIR-blocking coatings through reflectance, absorption, spectral range, testing methods, durability, and the performance target of the application.

IR-Cut vs. Narrow Bandpass: Choosing the Right Optical Filters for Medical Cameras

Medical cameras need the right spectral control for clear images. Compare IR-cut and narrow bandpass filters by wavelength, blocking, transmission, and use.

Choosing Infrared Narrow Bandpass Filters for Continuous Emission Monitoring Systems (CEMS)

CEMS accuracy suffers when filters pass unwanted wavelengths. Select infrared narrow bandpass filters by target gas, band, width, temperature, and stability.

Measurement vs Reference Channels: Choosing Filters for an NDIR Analyzer

Poor channel filtering reduces gas detection accuracy. Compare measurement and reference filters for wavelength selection, signal quality, and NDIR stability.

Can You Stack Longpass and Shortpass Filters to Build a Custom Passband?

Stacking standard filters may create leakage, slope, and transmission losses. Learn when longpass and shortpass filters can form a custom optical passband.

What Causes Signal Noise in MWIR Medical Imaging Systems

Background radiation and spectral mismatch degrade MWIR images. Learn how 3–5 μm filters, blocking, substrates, testing, and prototypes reduce noise.

Infrared Security Camera Design: Choosing Filters for Active Night Vision and Thermal Detection

Wrong filters weaken night vision or thermal detection. Compare narrowband and broadband filters by wavelength, AOI, detector response, and substrate.