Critical Color Evaluation - Photographic Lighting
The state-of-the-art Telelumen programmable LED luminaires are ideal for accurate color evaluation in color-critical applications. Meeting strict specifications and capable of reproducing international standards like D50 and D65 spectra, the the Telelumen LED luminaires have been adapted for viewing light booth configurations useful for critical color evaluation and digital photography sensor evaluation. Telelumen sells light booths using their programmable full spectrum LED luminaires in cooperation with GTI Graphic Technology, a world class leading vendor of light booths. For more details, please see the Telelumen Light Booth Products page or refer to the previous brochure here.
Color Matching Experiments on the IXR Platform
The IXR Platform, an imaging and extended reality modular space of University Jean Monnet, Saint-Étienne, France, provides advanced equipment dedicated to educational and research activities related to imaging, human vision and lighting technologies, computer vision, 2D/3D visualization, and extended reality.
Researchers from the Hubert Curien Laboratory and students in the international Master’s program IMLEX use a Telelumen tunable light booth that allows side by side comparison of objects under different spectral lighting. The booth developed in conjunction with GTI uses two Telelumen Octa 8 channel programmable LED luminaires. Under computer or touch screen control, the light booth generates a very wide range of tailored light spectrum conditions for side-by-side comparisons.
The photos above and left show examples of a psychophysical experiment designed to study the role of lighting in various human interactions. The experiment participants must match the target color chip on the left with the color chip choices shown on the right. The goal is to select the color chip in the right section that appears identical to the target chip in the left section despite the difference in spectral lighting.
The Telelumen light booth is a high-precision versatile tool that bridges academic research, education and industrial innovation. It provides a controlled lighting environment valuable for capturing reliable ground‑truth illumination and appearance data for AI-powered computer vision and XR product development pipelines supporting the benchmarking of algorithms, digital twins and vision-based questions.
This model of the Telelumen light booth is not only an ideal tool to create color matching scenarios critical for research, but also for paint, textile and print industries who manage products and branding to critical product color standards.
Camera Testing at York University
Professor Michael S. Brown (Canada Research Chair in Computer Vision, Dept. of Electrical Engineering and Computer Science) has set up a laboratory at York University, Toronto Canada for testing in-camera processing. As shown to the left, the test set up uses the Telelumen Light Viewing Booth for simulating multispectral data to capture the same scene with an RGB camera over 7 different illuminations, as well as the D65 standard illuminant. They use this data for a variety of spectral measurement and estimation tasks.
Professor Brown’s experience with Telelumen and its products has been a successful one - “Telelumen's Octa Light Player, a programmable spectrum LED luminaire, and its software are crucial in my research targeting in-camera processing. The ease of programming the light spectrum is essential to my testing of camera sensors under different conditions. Over the years, I have purchased multiple Light Viewing Booths of different sizes with the Octa Light Player installed. The Telelumen team has been highly responsive, providing outstanding support whenever we needed assistance. Telelumen's commitment to technical quality and customer service makes them a reliable and essential partner in our research efforts.”
TELELUMEN LUMINAIRES Applied to Human Perception and Performance Testing at PNNL
The Pacific Northwest National Laboratory (PNNL) is world renowned for its research capabilities in areas such as climate, environment, energy, and energy efficiency. As part of the United States Department of Energy with the mission to transform the world through courageous discovery and innovation, the laboratory does fundamental research that lays the foundation for innovations that advance sustainable energy.
PNNL has built a laboratory, shown at left, in two different types of illumination. They use Telelumen luminaires to simulate just about any spectral power distribution that could be made with LEDs today. It allows them to rapidly evaluate the effect of different lighting conditions on human perception and performance. They equipped their laboratory with the 24 channel Dittosizer products. “The number of channels and controllability is unmatched in the current market.” (Photos courtesy of PNNL)
The Jefferson Hospital Lighting Initiative
Founded in 1984 by renowned researcher George C. Brainard, Ph.D., Jefferson's Light Research Program uses basic and applied science to study how various visible and non-visible light sources influence human physiology and behavior. In Phase One of the Jefferson Hospital Lighting Initiative, the team has modified an ICU patient room in the Jefferson Hospital for Neuroscience with a smart lighting system from Telelumen (shown here). This next-generation space is enabling researchers to perform controlled studies exploring the impact of LED lighting on patient health and recovery in the hospital setting.
Shown at left is the Telelumen lighting system set to a mode enriched in the short wavelengths of the visible spectrum; above right is the same system but enriched in the long wavelengths.
The lighting in an intensive care unit (ICU) hospital room has been retrofitted in the Jefferson Hospital for Neuroscience. The smart lighting system from Telelumen is potentially capable of adjusting spectrum and intensity in real-time based on biometric feedback and human rest/activity cycles. This facility will help elucidate how tunable architectural lighting can optimize the health of patients admitted to the ICU
Source: - Thomas Jefferson University Hospital
Telelumen Smart & Human-Centric Lighting Applications
LESA CENTER AT RENSSELAER POLYTECHNIC INSTITUTE (RPI)
The LESA (Lighting Enabled Systems & Applications) Center is developing intelligent systems to address challenges in the connected environment, such as lighting systems with embedded intelligence from sensors that automatically maximize light quality, minimize energy use by sensing occupant needs and controlling LED lighting to study circadian rhythms. Telelumen luminaires are a key component for the study of intelligent human-centric lighting.
Another lighting Testbed is located at the University of New Mexico Hospital. It conducts multi-day studies to gauge the effectiveness of light therapy in synchronizing human circadian rhythms as a potential treatment for insomnia, mood disorders, and other health problems. The Testbed uses color-tunable lighting from LESA industry member Telelumen.