We heard about the passing of Dr. Roland Haitz in late June and we wanted to take this moment and remember the pioneering figure behind the evolving world of LEDs. We give our condolences to Dr. Haitz’s family, friends and the many lives his research and work touched. Dr. Haitz was renowned for Haitz’s law which states that every decade LED packages will experience steady decline in cost per lumen ($/lm) along with steady lumen output increase. For those unfamiliar with Haitz’s law, it is for LEDs as Moore’s Law is for the computer hardware industry which observed that transistors in an integrated circuit will double every two years. The proposed idea behind Haitz’s law was first introduced in a paper that Dr. Roland wrote with Jeff Tsao, Jeff Nelson and Fred Kish at Hewlett-Packard in 1999 titled “The Case for a National Research Program on Semiconductor Lighting.”
Haitz law was presented amongst one of the first times by Dr. Roland at Strategies in Light in 2000; it has since been a helpful guide in our ongoing forecast and projections for the LED industry. Dr. Haitz was also presented with Strategies in Light Pioneer award in 2013.
Dr. Haitz was revolutionary in being able to foresee that LEDs will become brighter, cheaper and efficient as materials and fabrication processes improve. Many companies have used Haitz’s law to set goals and targets for themselves to become the best in the industry and further pave the way for LEDs.
The figure below illustrates the projections of Haitz’s law: