The LED Show 2013 Lights up Vegas

　　2013在拉斯維加斯舉行的LED展有史以來最大規模的投票，有2600多人參加，展覽區有100多個展位。會議程序包括35個行業的專家，開始由一個小組會議上展示的觀眾心目中解決的兩個關鍵問題：1）是否能繼續保持LED的流明輸出和效率上的收益以同樣的速度，因為他們已經在最近幾年；2）不同的LED技術將用于為了滿足固態照明（SSL）系統的質量和成本目標。小組成員包括Chad Stalker、飛利浦Lumileds公司，Erik Swenson對于美國區域營銷經理，在日亞LED銷售經理，Paul Scheidt，在Cree公司的產品營銷經理。

　　跟蹤者說，他預計未來的效能提升將比系統級更高。他預測，雖然LED將繼續改善，但它將以較慢的速度。他指出，他所認為的更好的紅色LED和熒光粉轉換白光LED的顯色性好在溫暖的CCT值為需要。Lumileds公司，他指出，工作在不同的功率和輻射模式不同的市場。他引用a19s，街道照明，以及海灣照明的LED需要自己的專門領域的例子。

　　日亞化學的Swenson集中在中等功率LED，聲稱成分比大功率器件更迅速提高療效和注意的是，他們提供的質量和美觀，能更好地滿足多種應用需求。他聲稱nichia‘s757 LED提供了經濟不平等的大功率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.