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Lighting, Displays & Radiometry

Light measurement plays an important role in understanding how lighting and optical technologies perform. StellarNet spectrometers and radiometers capture detailed spectral information from LEDs, displays, lasers, and other light sources. This data can be used to evaluate color, spectral irradiance, intensity, and changes in light output. Solar irradiance measurements can also help researchers study natural and simulated sunlight. Whether testing a new display or characterizing an LED, StellarNet provides flexible tools for collecting reliable optical measurements in the lab and in the field.

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

Multi-wavelength Pulse Amplitude Modulated fluorometry (Phyto-PAM) reveals differential effects of ultraviolet radiation on the photosynthetic physiology of phytoplankton pigment groups

L Beecraft, SB Watson, REH Smith - Freshwater Biology, 2016 The effects of UV-B, UV-A and PAR on the photochemistry of phytoplankton from Hamilton Harbour, Lake Ontario, were measured to assess how...

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Key Application Areas

Food Safety & Quality

Advanced & quantum materials

Thin Films & Optical Coatings

Pharmaceuticals & Nutraceuticals

Biomedical & Life Sciences

Environmental & Microplastics

Industrial & Process Analysis

Astronomy, Space & Remote Sensing

Recommended Spectrometers for Lighting, Displays & Radiometry

LED Measurement Systems

Spectroradiometry provides precise measurement of LED spectral output, color, and intensity for research, development, and quality control. StellarNet radiometry systems can characterize LEDs and lighting systems for spectral power distribution, irradiance, illuminance, chromaticity, color temperature, CRI, and TM-30 metrics, helping engineers evaluate performance, consistency, and light quality.

StellarRAD

StellarRAD spectroradiometers provide complete spectral and color measurement for LEDs, lighting systems, and other light sources. Designed for laboratory, production, and field measurements, StellarRAD can measure spectral power distribution, irradiance, illuminance, chromaticity, correlated color temperature (CCT), CRI, and TM-30 metrics, providing engineers with a flexible system for LED characterization, lighting quality control, and optical performance testing.

SolarRad

SolarRAD spectroradiometers provide precise spectral measurement of sunlight and solar simulators for research, testing, and system characterization. Designed for solar irradiance measurements, SolarRAD can evaluate spectral irradiance, solar simulator output, spectral matching, and light-source stability, supporting applications in photovoltaics, solar energy research, environmental testing, and solar simulation.

Learn More

Explore Raman spectroscopy through practical guides, application notes, videos, technical resources, and real-world research. From understanding the fundamentals to exploring material identification, quality control, and advanced analysis, the Raman Learning Center provides resources to help you get more from your spectroscopy measurements.

  • Raman Guides & Tutorials — Learn the fundamentals and explore practical measurement techniques.
  • Application Notes & Research — See how Raman spectroscopy is used across real-world applications.
  • Videos, Labs & Technical Resources — Explore demonstrations, experiments, software resources, and measurement tips.
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