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Rich document Measuring the Oxygen Content of Blood with LEDs
Pulse oximetry is a non-invasive method for determining haemoglobin (Hb) saturation through oxygen in the blood and heart frequency. It uses the fact that oxygen-rich and oxygen-poor haemoglobin absorb red and infrared light differently. In order to measure the oxygen content reliably, LEDs with high performance, constant quality and low scattering are needed as light sources. With the WL-SMTW and WL-SITW series, Würth Elektronik has suitable red and infrared LEDs in its portfolio. In addition, there is a matching light sensor available: The phototransistor WL-STTW can reliably detect both red and infrared light.
Rich document text/texmacs Lumileds Boosts Intensity of CoBs for Spotlights and Downlights
Lumileds today introduced three lines of CoBs: the LUXEON CX Plus CoB (Gen 2), LUXEON CX Plus CoB – High Density and LUXEON CX Plus CoB – High Density (Below BBL), drop-in upgrades for Lumileds and competing arrays. The second generation arrays feature industry leading performance and a 14% flux improvement vs. the previous generation. Delivered in a range of light emitting surfaces (LES) (4.5, 6, 12 and 14mm) and correlated color temperatures of 2700K to 5000K, the Gen 2 arrays provide excellent efficiency of above 140 lm/W at 3000 K 80 CRI or 122 lm/W at 3000 K 90 CRI.
Rich document Vitrek's New Ultra High Accuracy Power Analyzer Sets New Standard for Price/Performance
Vitrek, the leader in high-voltage test and measurement equipment, introduces the PA920 Series Ultra High Accuracy Power Analyzer. The PA920 sets the new standard for accuracy (0.024% of reading) in the graphical power analyzer market. It integrates an ultra-high accuracy, wideband waveform digitizer with advanced computational capability, a large high-resolution display and a full-color touchscreen user interface.
Rich document chemical/x-pdb Tridonic and NMB-Minebea-GmbH Sign Partnership Agreement
Tridonic, a world-leading supplier of lighting technology, and NMB-Minebea-GmbH, which is part of the MinebeaMitsumi group, the major producer of machinery components and electronics devices, have signed a contract to form a strategic partnership. The partnership aims to develop intelligent outdoor lighting solutions for Smart Cities.
Rich document Luminus Salud™ LEDs Suppress Melatonin and Deliver Warm, Comfortable Illumination
Luminus Devices expands its illumination portfolio today with the introduction of the Salud line of 3030 mid-power LEDs. Salud LEDs are the first with datasheet specified melanopic ratios (MRs) in addition to CRI, R9, CCT, and Flux. By enhancing the spectrum with cyan for melatonin suppression and enriching the 660 nm emission for natural skin tones and excellent red-rendering, Luminus Salud LEDs can deliver warmer, more comfortable light that keeps people healthy, alert, and productive.
Rich document Chinese Researchers Propose Method to Overcome Low Efficiency of High-Power Flip-Chip LEDs
Chinese scientists from different research centers recently published a co-authored paper on "Highly Efficient GaN-based High-Power Flip-Chip LEDs" in Optics Express Vol. 27, Issue 12, pp. A669-A692 (2019)under the terms of the OSA Open Access Publishing Agreement. High-power flip-chip light-emitting diodes (FCLEDs) suffer from low efficiencies because of poor p-type reflective ohmic contact and severe current crowding, they propose an improvement by using an Ag film.
Rich document D source code Opulent Americas - Linear LED Module Built with Osram Osconiq S 3030 QD
Opulent Americas, a fully integrated global manufacturer for the lighting, automotive, and medical industries, is excited to announce the product line addition of linear LED modules built with the new Osram Osconiq S 3030 Quantum Dot LED. The Osconiq S 3030 QD was specially developed to enable customers to design luminaires with high efficacy and excellent color rendering for area lighting and downlight applications.
Rich document Xicato's New Daylight 5600 K LED Source Is Here
Xicato, the leading provider of smart building wireless controls and highest quality light sources, today announced the general availability of Daylight 5600 K CCT. As one of the best approximations of sunlight indoors, it delivers rich, accurate colors with high gamut, CRI 95+ and R9 of 90+, with a consistency and reliability that has set Xicato lights apart.
Rich document New CIE Technical Report: Optical Measurement of LED Modules and Light Engines
LED modules and light engines represent a wide range of very different products with unique physical properties. Thus, they can neither be treated as single LED packages (where measurements refer to a specific junction temperature of a single LED or the average of a single die, multiple-junction LED) nor as complete lamps or luminaires (where measurements refer to the ambient temperature).
Rich document nanoLambda XL-500 - Tiny Spectroradiometer to Find Optimum Spectrum for Plants and Humans
nanoLambda, No.1 spectral sensor company, announced XL-500, a tiny BLE spectroradiometer with free Android and iOS apps, designed for lighting researches and industrial uses in plant, animal and human centric lighting fields.

Nichia Showcases LEDs with 'Light so Good'

Nichia Showcases LEDs with 'Light so Good' At Light + Building 2020 held in Frankfurt, Nichia – the leader in high-performance LED solutions – reveals it will present at least three complementary technologies to improve the delivery of light quality under an over-arching banner of 'Light so Good'. Read more »


Zhaga Summit – September 23rd in Bregenz

Zhaga Summit – September 23rd in Bregenz Luger Research and Zhaga are proud to announce that the 2020 LpS/TiL conference will host a Zhaga Summit. This one-day event will provide application-driven introductions to the latest Zhaga standards, review their market reception, and solicit inputs from the specifier community through workshops. Read more »


Research Confirms that Light Pollution Can Suppress Melatonin Production in Humans and Animals

Research Confirms that Light Pollution Can Suppress Melatonin Production in Humans and Animals Melatonin sets the internal clock. Researchers from IGB in an international team have analyzed data on the impact of light pollution on melatonin formation in humans and vertebrates. They found that even the low light intensities of urban skyglow can suppress melatonin production. Melatonin ... Read more »


CIE Announces Availability of New Documentation: Test Method for OLED Luminaires and OLED Light Sources

CIE Announces Availability of New Documentation: Test Method for OLED Luminaires and OLED Light Sources The new CIE International Standard S 025-SP1/E:2019 is a supplement to CIE S 025:2015 Test Method for LED Lamps, LED Luminaires and LED Modules specifies the requirements for measurement of electrical, photometric, and colorimetric quantities of OLED luminaires and OLED light sources. These sources ... Read more »


Care, Caution & Awareness Are Needed When Using LED Lights

Care, Caution & Awareness Are Needed When Using LED Lights Kyra Xavia is a researcher, educator and investigative journalist based in New Zealand. Her roles as general secretary of the Light and Lighting Research Consortium (LLRC), delegate for the International Dark Sky Association (IDA), New Zealand Ambassador for Women in Lighting 2019, and co-leader of ... Read more »