Dr. Kaveh Azar, president and CEO of Advanced Thermal Solutions, Inc. will be
among the industry leaders presenting at the 2012 Smart Lighting conference in
Dusseldorf, Germany on January 31 and February 1. Under the subject of Smart
Control, Dr. Azar will discuss the impact of excess temperature on the
performance, reliability and lifespan of LEDs, and review the many cooling
options available.
The heat generated by an LED, and how heat affects the control of an LED’s
response time makes cooling a primary concern. Because LEDs are semiconductor
devices their light output is directly impacted by temperature. If the thermal
situation is not managed it will cause the LED to perform improperly, stop
functioning, or shorten its expected lifespan.
The immediate issue is managing LED heat to preserve its performance. How
LEDs display colors and how long they can be expected to function puts proper
thermal management at the center of their deployment. Across the full
temperature range that most lighting is designed for, there is a swing in the
relative light output. Each color is affected differently by temperature and the
swing in light output is distinctly measureable and visible. This includes the
low temperature ranges that are most common to today’s lighting
applications.
The challenge facing LED lighting designers is the alignment of the cooling
system/solution with the deployment-site requirements and its market acceptance.
LED lighting, or correctly stated, solid-state lighting, is identical other
electronic devices whose longevity and proper operation directly depend on their
junction temperature and how it’s thermally managed. Several cooling
technologies for effective LED thermal management are now available and are
being deployed across the electronics industry.
Dr. Azar’s presentation will review the details of LED heat transfer that
will dictate the selection of the cooling system. The presentation will show
cooling options for single or multi-chip LED lights for varied applications, and
how to assess their relative effectiveness.
About the Smart Lighting Conference (www.smartlighting.org)
