Top Articles
WHITE PAPER - Measuring Color Uniformity
The color uniformity of light generated by LED luminaires plays a major role in many lighting applications. This makes it an important parameter to measure in both the R&D stage and during the quality assurance process. MKS Instruments has stayed abreast of this challenge by developing a new feature for its FluxGage photometrical system: the color uniformity measurement function. It allows quick evaluation of optical assemblies for color mixing and beam shaping. This whitepaper presents this novel feature of the system.
Read more »
WHITE PAPER - Protection Materials To Improve LED Device Lifetime And Performance
With the rapid growth of the LED market, correct product selection is imperative to ensure LED performance and lifetime. Jade Bridges, Electrolube’s Global Technical Support Manager, will highlight the use of LEDs in various environments and introduce how to specify appropriate protection under such conditions.
Read more »
EUROPEANS’ FAVOURITE PRODUCTS: Contributing to the Circular Economy
Europe is known for its high quality and innovative products backed by a growing regulatory framework. This years-long knowledge and experience together with the EU institutional change put us now in an excellent position to reflect and ensure the framework delivers and is tailored to accelerating Europe’s circular economy transition.
Read more »
Maine Sues Department of Energy Over Light Bulbs
Maine is one of 16 states now suing the US administration over light bulbs. They're challenging the Department of Energy's new rule rolling back efficiency standards.
Read more »
The 2019 LpS & TiL Award Winners: Celebrating the Complete Spectrum of Light
It is a great pleasure for the LpS and TiL organization committee to announce the award winners for 2019. For the second time in a row, after the traditional cruise on the lake from Bregenz to Lindau, the gala dinner at the Eilgut Halle has proven to being a great place for the LpS & TiL award ceremony. There were 8 award categories covering ground-breaking scientific research through to solutions, designs and innovative applications to celebrate the complete spectrum of light. In addition, this year in celebration of the 75th issue of LED professional Review magazine 6 people were honored for their significant contribution and influence on LpR Magazine.
Read more »
Demonstration at LpS Shows Zhaga-D4i's Plug-and-Play Interoperability of Streetlighting
Plug-and-play interoperability between luminaires and sensors and communication modules is an essential requirement for Smart City lighting. This has been the primary motivation for the collaboration between the Zhaga Consortium and the Digital Illumination Interface Alliance (DiiA) over the upcoming Zhaga-D4i specifications. Both organisations are therefore proud to announce that booth C17 at the LED professional Symposium in Bregenz showcased the world's first Zhaga-D4i interoperability demonstration.
Read more »
Commentary: Providing Better Light Should Still be the Focus of the SSL Industry
J. Norman Bardsley, PhD - As President of Bardsley Consulting, Norman advises industry, government and academia on solid-state lighting, flat panel displays and energy efficiency, with special emphasis on diffuse lighting and organic electronics.
Read more »
Cree Lighting Improves Outdoor and Industrial Intelligent Lighting
Cree Lighting announced the availability of Synapse®SimplySNAP intelligent lighting controls for the OSQ Series area, IG Series parking structure and KBL Series high-bay luminaires. These Cree Lighting luminaires overcome the challenges of outdoor and industrial environments to provide maximum energy savings, responsive illumination and a better user experience.
Read more »
Cezos Introduced New Magnet Switch for Inside Cabinet LED Lighting
Cezos is delighted to present their new magnet switch, L475T, which is a specialized controller designed to drive a LED light inside cabinets etc. Due to a 3-axes MEMS magnetometer sensor it can extremely precise detect minimal changes in the magnetic field. Therefore, the distance to the magnet can be wider than with traditional sensors (e.g. mechanical). The calibration algorithm detects the best axis when the door is opened for the first time, so the mounting direction is not relevant. The soft adjustment of the light protects the eyes. If the door will not be closed, the light turns off automatically after 15 minutes.
Read more »
EzyLED™ Now Stocked at Digi-Key
American Bright, a global LED lighting solutions manufacturer, announced a series of EzyLED 3030. American Bright's EzyLED™ is a proprietary LED device with a built-in IC. This patented design drastically reduces the need for additional circuitry and other on-board components making it the ideal solution for tight fitting applications. The smart EzyLED 3030 comes with a constant current regulator with built-in bias voltage rectification circuit and uses conventional 12V/24V AC/DC sources. The EzyLED is also available in a T-10 bulb. Request a free sample today!
Read more »
Philips Announces First Installation of IntelliSpace Critical Care and Anesthesia System
Philips interoperable digital technology, predictive trend analytics and smart algorithms help drive improved outcomes in acute care.
Read more »
Everlight Releases EL SmartLED Series for Automotive Interior Applications
Everlight Electronics, a leading player in the global LED and optoelectronics industry, releases a new generation of lighting products for automotive interior application to bring more convenience to our life. The new EL SmartLED (S-Smart, M-Multi Function, A-Automotive, R-RGB, T-Technology) Series is suitable for automotive interior lighting applications to present colorful combinations in the vehicle interior. Featuring a unique package technology to achieve improved uniformity of light, the EL SmartLED Series embedded intelligent IC driver can better manage colors and adjust brightness via a controller. We expect to provide complete and smart solutions for OEMs.
Read more »
YUJILEDS Releases a New Generation of High Power RGBWW LEDs with High CRI
YUJILEDS lab has announced the state-of-the-art R&D results in the high CRI monochromatic tunable spectrum field. Based on the superposition of spectrum, the new product of 7070 LED, integrated 5 channels - red, green, blue, cold white and warm white within one packaged LED. The technology is mainly required in photography and film lighting, but also has a potential for any areas that demand various colors or CCTs, like entertainment venue or horticulture lighting.
Read more »
Cezos Introduced New Magnet Switch for Inside Cabinet LED Lighting
Cezos is delighted to present their new magnet switch, L475T, which is a specialized controller designed to drive a LED light inside cabinets etc. Due to a 3-axes MEMS magnetometer sensor it can extremely precise detect minimal changes in the magnetic field. Therefore, the distance to the magnet can be wider than with traditional sensors (e.g. mechanical). The calibration algorithm detects the best axis when the door is opened for the first time, so the mounting direction is not relevant. The soft adjustment of the light protects the eyes. If the door will not be closed, the light turns off automatically after 15 minutes.
Read more »
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.
Read more »
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.
Read more »
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.
Read more »
Study Reveals How Age Affects Perception of White LED Light
Although LEDs are increasingly used in low-energy lighting and displays, consumers sometimes find their light harsh or unpleasant. Findings from a new study point to the need to take age-related perception differences into account when designing white LED lighting that is more pleasing to the eye.
Read more »
Thermal and Optical Challenges for SSL in Automotive Applications
LpR 72 Article, page 50: Solid State Lighting changed the lighting environment in automotive lighting almost more than in the field of general lighting. While efficiency of the devices increased and every few weeks new improvements are reported, thermal management remains crucial and a critical part of the system. Umut Zeynep Uras, Ahmet Mete Muslu and Mehmet Arik, from the Energy Efficient Electronics and Lighting Technologies Center (EVATEG), Department of Mechanical Engineering, College of Engineering at Ozyegin University, and Fatih Goren from the FARBA Corporation, explain the dependencies between photometric, electrical and thermal parameters of an automotive lighting application.
Read more »
LED Lighting Systems in Smart Buildings with DC Microgrids
LpR 72 Article, page 60: While electric motors for ventilation and air-conditioning systems were already DC-based in the past, powerful IT systems, LED lighting systems, photovoltaic systems with batteries and charging systems for electro mobility are now increasingly being used in modern building environments. They all need direct current (DC). Therefore, an obvious step is to equip modern buildings with DC grids. Carsten Moellers from Abalight discusses a number of unresolved questions and presents possible solutions in this article.
Read more »
