The LED Show 2013 Lights up Vegas

　　The LED Show 2013 Lights up Vegas

　　2013在拉斯维加斯举行的LED展有史以来最大规模的投票，有2600多人参加，展览区有100多个展位。会议程序包括35个行业的专家，开始由一个小组会议上展示的观众心目中解决的两个关键问题：1）是否能继续保持LED的流明输出和效率上的收益以同样的速度，因为他们已经在最近几年；2）不同的LED技术将用于为了满足固态照明（SSL）系统的质量和成本目标。小组成员包括Chad Stalker、飞利浦Lumileds公司，Erik Swenson对于美国区域营销经理，在日亚LED销售经理，Paul Scheidt，在Cree公司的产品营销经理。

　　跟踪者说，他预计未来的效能提升将比系统级更高。他预测，虽然LED将继续改善，但它将以较慢的速度。他指出，他所认为的更好的红色LED和荧光粉转换白光LED的显色性好在温暖的CCT值为需要。Lumileds公司，他指出，工作在不同的功率和辐射模式不同的市场。他引用a19s，街道照明，以及海湾照明的LED需要自己的专门领域的例子。

　　日亚化学的Swenson集中在中等功率LED，声称成分比大功率器件更迅速提高疗效和注意的是，他们提供的质量和美观，能更好地满足多种应用需求。他声称nichia‘s757 LED提供了经济不平等的大功率LED。

　　Paul Scheidt of Cree discussed system-level cost issues and concluded that LEDs are less of a factor to system cost compared to other things such as drivers and optics. He presented several ways of addressing system cost with different types of LEDs and different system architectures. Looking at the AC-LED approach， Scheidt said AC-driven designs require more LEDs because not all of the LEDs are driven at any point in time. He also characterized AC systems as having unresolved flicker problems and EMI issues that require extra circuitry. Taking on the mid- /high-power debate， Scheidt said that in as little as two years mid-power LEDs will shift in color with undesirable results. He said the problem is exacerbated by driving LEDs harder and by limiting the number of LEDs in a system. Scheidt’s conclusion was that in many applications such as retrofit lamps， high-voltage， high-power LEDs offer the best system-level approach and the highest system efficacy. Both Cree’s Scheidt and Philips Lumiled’s Stalker believe that LED costs will continue to drop 20 to 30 percent per year for the next several years.

　　The LED Show also had sessions on “The latest news on LED chip technology，” “Interior LED lighting- designing the space with LEDs，” “How to light your exterior space intelligently”， “The psychology of lighting” and “LED lighting systems，” as well as talks about solid-state lighting standards.