White Paper | IP, Reports & Roadmaps | Jul 30, 2013

DoE Publishes CALiPER Snapshot Report on Outdoor Area Lighting

While most products perform well above the DLC QPL efficacy and output criteria, in the roadway category, where the incumbent technology is predominantly HPS, few LED products listed by LED Lighting Facts appear to be suitable alternatives to nominally 400 W luminaires The U.S. Department of Energy's CALiPER program has released a Snapshot Report on outdoor area lighting, which utilizes the LED Lighting Facts® program's extensive product database to help industry stakeholders understand the current state and trajectory of the market for LED outdoor area and roadway, parking garage, and canopy luminaires. Read more »

News-Spot | Standardization & Regulation | Jul 17, 2013

Leading Lighting Companies Select ZigBee Light Link

The Connected Lighting Alliance announced today its endorsement of ZigBee Light Link as the preferred common open standard for residential connected lighting applications, simplifying choices for both lighting companies and consumers. Read more »

White Paper | Jul 02, 2013

Alternative Calculation Method Will Improve Thermal Analysis of LEDs - by Michiel Krüger, Ph.D. - Philips Lumileds

Figure 1: LED Definition An alternative method to estimate the amount of heat generated by LEDs will help increase the accuracy and streamline the thermal analysis of white LEDs. Up until now, thermal analysis of white LEDs has been an imperfect science. Too often LED lamp and luminaire manufacturers rely on insufficient, inaccurate or intangible data to determine the thermal performance of the LEDs in their applications, and, as a result, may over-engineer their heat sink design. Read more »

White Paper | Standardization & Regulation | Jun 26, 2013

Zhaga Announces Several Updates and Reports About Activities in their Latest June Newsletter

June has been a very busy month for Zhaga, with the consortium’s first meeting in China combined with an open session for government officials and representatives from China’s lighting industry. Meanwhile, the first products have now been certified for Zhaga interface specification Books 4, 7 and 8, while Zhaga has signed a liaison with the Global Lighting Association. Read more »

White Paper | Standardization & Regulation | Apr 22, 2013

Model Specification for Adaptive Control and Remote Monitoring of LED Roadway Luminaires, V1.0

The DOE Municipal Solid-State Street Lighting Consortium's Model Specification for Adaptive Control and Remote Monitoring of LED Roadway Luminaires is a tool designed to help cities, utilities, and other local agencies accelerate their adoption of systems that can further reduce the energy and maintenance costs of operating their streetlights. Read more »

Fundings & Projects | White Paper | Feb 27, 2013

NEWLED Research Project Led by the University of Dundee Aims to Revolutionize the Way the World Is Lit

"Bulb is over" was a provoking statement on LpS 2013 - NEWLED could make that reality The way the world is lit up could be revolutionised by a new European-wide research project being lead by the University of Dundee. The 11.8million Euros NEWLED project aims to develop a new generation of white light-emitting LED lights, which would be much more efficient than existing light bulbs. Read more »

White Paper | Standardization & Regulation | Feb 26, 2013

Zhaga Consortium Publishes Book 2 Interface Specification for LED Light Engines

Some examples for Zhaga compliant products Zhaga has published its second interface specification, as part of its mission to enable the interchangeability of LED light sources. Products carrying the Zhaga logo are already available from various manufacturers. Read more »

Technology | Standardization & Regulation | Feb 08, 2013

LEDOTRON: Digital Dimming Technology for a New World of Lighting Convenience

The future of dimming, how it works and how the numbers of dimming systems will evolve in the future LEDOTRON is the name of the new digital standard for dimming systems designed for LED and compact fluorescent retrofit lamps. The innovative digital dimming and regulation technology was developed in collaboration with OSRAM and is to be passed as the IEC 62756-1 standard end of this year.The participants at the LEDOTRON press conference at the BAU trade fair in Munich in January 2013 were presented with the advantages of the LEDOTRON technology. Read more »

White Paper | Standardization & Regulation | Jan 10, 2013

SEMI's LED Standards Committee HB-LED Standard Published

After the formation of the high-brightness light-emitting diode (HB-LED) Standards Committee in November 2010 the committee was working hard on HB standards. The committee is happy to announce that it now has approved its first standard, SEMI HB1: Specifications for Sapphire Wafers Intended for Use for Manufacturing High Brightness-Light Emitting Diode Devices. Developed by the HB-LED Wafer Task Force, SEMI HB1 defines and specifies the physical geometry of 150 mm diameter sapphire wafers used in HB-LED manufacturing. HB1 covers dimensional, wafer preparation, and crystallographic orientation characteristics, as well as the appropriate measurement methods. The document was approved by the HB-LED Committee during the North America Fall 2012 meetings, recently completed procedural review and will be published soon. Read more »

White Paper | IP, Reports & Roadmaps | Jan 03, 2013

DoE Releases CALiPER 2012 Year in Review Report

The CALiPER 2012 Year in Review report contains several graphs like this one showing overall test results since 2006 The CALiPER program has tested more than 500 products since its inception in 2006, revealing a variety of performance trends, holding manufacturers accountable for claims, and identifying concerns that limit adoption. Over the past six years, the LED marketplace has changed substantially; previously relegated to niche status, LED products are now a viable alternative in many product categories and market share is expected to grow rapidly. Starting in 2012, Summary Reports focus on a single product type or application. Read more »

Standardization & Regulation | Oct 22, 2012

The Zhaga Consortium Makes Book 3 Public, the First of Seven Interface Specifications for LED Light Engines

The cover page of the first public specification, Book 3 (left), and the internally disclosed 8 Zhaga Books (right) Zhaga has made the interface specification ‘Book 3’ publicly available as free download from its website. Book 3 defines the interface for a small, round, LED light engine suitable for spot lighting and other applications that need a point light source. Read more »

White Paper | Technology | Oct 10, 2012

Fan Efficiency, An Increasingly Important Selection Criteria

A typical performance plot of a 120mm size axial fan with curves for both airflow and efficiency How important is fan efficiency in the selection of a cooling system? Selecting a cooling fan is no longer about airflow and noise. The true test for a design engineer is the understanding that by selecting an efficient cooling fan system savings in cost of ownership can be realized. NMB Technologies Corporation, a Minebea Group Company, has released a new white paper on that issue. Read more »

White Paper | Standardization & Regulation | Oct 03, 2012

EMerge Alliance Releases Version 1.1 of Occupied Space Standard

Progress continues toward integrated standards for DC microgrids in buildings SAN RAMON, CALIF. (October 2, 2012) – The EMerge Alliance – an open industry association leading the rapid adoption of safe direct-current (DC) power distribution standards for commercial buildings – today announced it has updated the EMerge Alliance Occupied Space standard, the first application platform model for the utilization of low-voltage DC power in commercial interiors. The EMerge Alliance Occupied Space standard creates an integrated, open platform for power, interior infrastructures, controls and a wide variety of peripheral devices to facilitate the hybrid use of AC and DC power within commercial buildings. Version 1.1 includes several important updates to voltage limits, recommended cable sizes and other requirements to assist companies developing products when using the standard. These changes are backwards compatible and maximize the interoperability and efficiency of EMerge Alliance Registered products. Read more »

Standardization & Regulation | Sep 06, 2012

Zhaga Specification - Exclusive Article Series in LpR #33

LED professional Review (LpR #33) - Zhaga Issue Register to download the LED professional Review - LpR Issue #33, with an exclusive article series concerning Zhaga specification and an introductory by Mr. Menno Treffers, General Secretary of The Zhaga Consortium. Read more »

News-Spot | IP, Reports & Roadmaps | Aug 03, 2012

Rubicon Technology Patent Allowed for In-situ Crystal Orientation

Rubicon Technology, Inc., a leading provider of sapphire substrates and products to the LED, semiconductor, and optical industries, today announced that the United States Patent and Trademark Office (USPTO) has allowed Rubicon’s patent application entitled, “Intelligent Machines and Process for Production of Monocrystalline Products with Goniometer Continual Feedback.” The patent covers Rubicon’s equipment and process developed to perform in-situ orientation of its sapphire crystals within the various fabrication tools used by the Company. Read more »

EDITORIAL

Advanced "Super-Planckian" Material Exhibits LED-Like Light When Heated

Advanced "Super-Planckian" Material Exhibits LED-Like Light When Heated Could there be a new kind of light in the universe? Since the late 19th century, scientists have understood that, when heated, all materials emit light in a predictable spectrum of wavelengths. Research published this week in Nature Scientific Reports presents a material that emits light when ... Read more »

EDITORIAL

LpS/TiL 2020 Cancelled

LpS/TiL 2020 Cancelled DORNBIRN, Austria, February 26, 2020 – In light of the recent postponement of Light + Building to September 2020 and due to the spread of the coronavirus, the organizer of LpS 2020 and TiL 2020, Luger Research e.U. has had to make the decision to cancel the LpS/TiL 2020 events. Read more »

EDITORIAL

WEBINAR (May 14th): How to Achieve Better Products to the Eye Through Virtual Prototyping?

WEBINAR (May 14th): How to Achieve Better Products to the Eye Through Virtual Prototyping? In the CADFEM webinar on May, 14, 2020 you will learn, how physics-based simulations - virtual prototyping - contribute to develop better lighting products. The live presentation pictures the whole process - from editing the geometric model to the definition of light sources and sensors to the use ... Read more »