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| HB-LED manufacturing technology looks on track to meet cost demands of general lighting market (MAGAZINE) |
| Technical breakthroughs and manufacturing improvements should keep the LED industry on track to improve performance and reduce costs at an appropriate rate, but this is not a done deal, as ERIC VIREY, PHILIPPE ROUSSEL, PAULA DOE and TOM PEARSALL describe. |
| LED phosphor suppliers are affected by China's rare-earth export quotas (MAGAZINE) |
| LED phosphors typically incorporate rare-earth elements, and manufacturers need to ensure that they have an adequate supply of these critical materials, as TIM WHITAKER reports. |
| High LED drive currents with low stack voltages create efficiency challenges (MAGAZINE) |
| The SSL industry is beginning to do a better job of optimizing the LED components, drive electronics, thermal design, and optical elements of a luminaire according to MATTHEW REYNOLDS, who details the energy-efficiency challenge. |
| Sun and symbolism inspire disc-shaped LED spotlight (MAGAZINE) |
| Harald Gründl of design studio EOOS discusses the design of Zumtobel’s LED-based Discus spotlight, the shape of which mimics the sun's rays. |
| Sapphire wafer supply and demand remain in the balance (MAGAZINE) |
| Sapphire wafer prices rose sharply during 2010, particularly for 2-inch material, but crystal growers are adding capacity and LED makers are looking at larger wafers. TIM WHITAKER reports. |
| TM-21 seeks methods for lumen-maintenance prediction (MAGAZINE) |
| Devising a standardized method to predict the long-term lumen maintenance of packaged LEDs and LED modules is not an easy task, writes JIANZHONG JIAO in his latest column on standards. |
| LED lighting begins to mature but must overcome early SSL problems (MAGAZINE) |
| Like many upstart lighting technologies before it, LED lighting has suffered from broken promises, but quality products are emerging that lighting designers can confidently deploy, says CHIP ISRAEL of LIGHTING DESIGN ALLIANCE. |
| Mergers and acquisitions will remain a regular feature of the energy-efficient lighting market (MAGAZINE) |
| The energy-efficient lighting category has experienced a substantial amount of strategic acquisition activity for the past several years, and this trend should continue, according to TRISHA HANSEN and DAVID CUMBERLAND. |
| Wireless networks enable city-wide control of LED street-light installations (MAGAZINE) |
| Municipalities can add a wireless system to LED street-light deployments and implement remote power-monitoring and control functions including dimming, says MAURY WRIGHT. |
| LightSavers LED street-lighting pilot project yields encouraging results (MAGAZINE) |
| A pilot SSL street-light project in Caledon, Canada tested LED luminaires from three manufacturers. Maury Wright describes the generally positive results for illuminance, uniformity, and lumen depreciation after a full year since deployment. |
| LEDs Magazine February 2011 issue (MAGAZINE) |
| The February 2011 issue of LEDs Magazine is now available. |
| Application requirements dictate best choice for outdoor-lighting technology (MAGAZINE) |
| A methodology for evaluating lighting-design criteria and cost issues provides lighting professionals with a pathway to make the best outdoor lighting choices, explains Ronald Gelten. |
| Metal-organic precursors and other LED materials |
| Like sapphire wafers and phosphors, metal-organic precursors are essential materials for the LED manufacturing process. |
