Standardization of Performance Criteria for LED Luminaires
This guiding paper is intended to help bring clarity by introducing a universal set of quality criteria that are recently described in two IEC/PAS documents. As a user of LED luminaires it is important to apply the same set of standardised and therefore comparable quality criteria when evaluating manufacturer’s claims. Users of LED luminaires should always ask for LED luminaire specifications measured in compliance with the new IEC/PAS documents. Read more »
Underwriters Laboratories (UL) Introduces New LED Package Component Recognition Program
UL is committed to advancing and innovating safety, providing certainty to more people, businesses and governments. As a technical leader in Solid State and LED Lighting technologies, UL has created a Component Recognition program for LED packages under the Category Control Number (CCN) OOQL2 (LED Packages – Component). A parallel category, OOQL8, provides certification for Canada.
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SEMI International Standards Program Forms High-Brightness LED Standards Committee
SEMI announced today the formation of a high-brightness light-emitting diode (HB-LED) Standards Committee. The SEMI International Standards Committee approved the petition for the HB-LED Standards Committee on November 4, 2010. The Committee met for the first time on November 11 and initiated standards Task Forces on wafers, carriers, assembly and automation. The Committee and Task Forces are comprised of industry leaders in HB-LED devices, sapphire wafers, MOCVD wafer processing, and key ... Read more »
LED Reliability and Current Standards for Measurement
DOE SSL Workshop - July 2010. Presentation by Eric Richman - Pacific Northwest National Laboratories. Read more »
Zhaga Consortium to Drive Standardization of LED Light Engine Interfaces
An international group of companies from the lighting industry – including Acuity Brands Lighting, Cooper Lighting, OSRAM, Panasonic, Philips, Schréder, Toshiba, TRILUX and Zumtobel Group – is to initiate the formation of Zhaga, an industry-wide cooperation aimed at the development of standard specifications for the interfaces of LED light engines.
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EMerge Alliance Announces First DC Power Standard for Commercial Buildings
On the Standardization of Thermal Characterization of LEDs
Unlike two decades ago in the IC world, the junction temperature (Tj) of an LED is not just a performance indicator of the thermal design but also plays a major role in lighting design since many properties of the light output of an LED depend on the absolute junction temperature. This means that thermal management should be an integral part of the system design of an LED based lighting solution, resulting in changing roles of different engineering disciplines in the overall design process - as ...
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NIST releases new standard for semiconductor industry
A wide range of optical electronic devices, from laser disk players to traffic lights, may be improved in the future thanks to a small piece of semiconductor, about the size of a button, coated with aluminum, gallium, and arsenic (AlGaAs). Read more »
LED Lighting Standard Organizations
Jianzhong Jiao, Ph.D. - Osram Opto-Semiconductor Read more »
Solid State Lighting for Incandescent Replacement—Best Practices for Dimming
This paper focuses on integrated LED lamps intended for replacement of general service incandescent lamps. Future white papers are planned to address other LED dimming topics, such as: color change; light output and efficiency (dimming curve); dimming protocols (Internet protocols, 0-10); LED modules with auxiliary drivers; and control architectures that dim without modulated power. Read more »
