Lighting, Displays & Radiometry
Featured Articles
LED Measurement at DelphiTech – Customer Spotlight
A StellarNet SpectroRadiometer enables DelphiTech to ensure quality, quantify new products and analyze competitive products. Rodney McInnis, CEO of DelphiTech, has been manufacturing high-end LED lighting for the outdoor home lighting industry for over 15 years.
Lighting the Way to Better Welfare: Spectrometer Use in Zoos
Light is the essence of life, shaping the evolution of every living creature on this planet. By better understanding light, we better understand life itself — a crucial mission for zoos, whose primary role is not just to care for animals but to ensure their well-being. Animals rely on sunlight for a multitude of reasons, from birds using UVA rays to judge mate quality to reptiles absorbing Infrared A and B to regulate their body temperature.
Why Turtle Safe Lighting Matters for Sea Turtle Survival + An Interview with FWC Experts
Artificial lighting along coastlines is a well-documented threat to sea turtle populations. Species such as the loggerhead sea turtle and green sea turtle rely on natural light cues for nesting and hatchling orientation. Disruptions to the spectral composition and intensity of coastal lighting can lead to disorientation, reduced nesting success, and increased mortality.
Customer Research & Publications
Spectroscopy and the Perfect Pitch
Before the first whistle blows at the soccer match, spectroscopy is already at work. By measuring the light reaching the turf canopy, researchers using StellarNet spectrometers uncovered how healthy...
Analyzing Astrophotography Filters- The SpectraWizard captures the Orion Nebula
After analyzing the spectrum of Sirius and Betelgeuse, the SpectraWizard decided to take a shot with astrophotography. His journey takes him to the Great Orion Nebula where he creates a superimposed...
Why Turtle Safe Lighting Matters for Sea Turtle Survival + An Interview with FWC Experts
Why Turtle Safe Lighting Matters for Sea Turtle Survival + An Interview with FWC Experts Artificial lighting along coastlines is a well-documented threat to sea turtle populations. Species such as...
2026 April Lyrid Meteor Shower Spectroscopy with StellarNet
The Lyrid meteor shower and spectroscopy intersect in the study of meteors' chemical composition and physical properties. When a meteor from the Lyrid shower enters Earth's atmosphere, it heats up...
Find a Rainbow Day Spectroscopy
The Science Behind Rainbows Rainbows form when sunlight interacts with water droplets in the atmosphere. As light enters a droplet, it refracts (bends) due to the change in medium from air to water,...
Solar Simulator Prototype with Halogen and Light-Emitting Diode Sources
Gustavo P. C. da Cruz, Gabriel L. Barreto, Luis A. Gómez-Malagón, Ricardo A. de Lima, and Caio V. P. Vital Published: August 2025 | Journal of Solar Energy Engineering AbstractTest PV Devices...
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Recommended Spectrometers for Lighting, Displays & Radiometry
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Explore Radiometry and light measurement through practical guides, application notes, videos, technical resources, and real-world research. Learn how spectral measurements can be used for LED characterization, spectral irradiance, illuminance, color and chromaticity, CRI, TM-30, solar measurement, and light-source testing. The Radiometry Learning Center provides practical resources to help researchers and engineers better understand light measurement and evaluate the spectral, color, and radiometric performance of LEDs, solar simulators, and other light sources.
- Radiometry Guides & Tutorials — Learn the fundamentals of spectroradiometry, spectral irradiance, illuminance, color, and light measurement and explore practical measurement techniques.
- Application Notes & Research — See how spectroradiometry is used for LED measurement, lighting characterization, solar measurement, light-source testing, and optical research.
- Videos, Labs & Technical Resources — Explore light measurement demonstrations, experiments, RadiantSuite software resources, calibration guidance, and practical measurement tips.