The Industry Needs Better LED Measurements
Hulett presents the old-world problem that plagues today's LED measurements. Learn what it is, why it matters, and what you can do about it.
Jeff Hulett
Jeff Hulett is the Founder and CTO of Vektrex Electronic Systems, Inc. Because of his vision and leadership, the company grew from a start-up to the market leader. Currently, Hulett is the Chief Architect for Vektrex products placing the highest emphasis on technology and quality. Hulett holds a BSEE from the Illinois Institute of Electronics, and has been awarded four U.S.patents. He is a member of the Illumination Engineering Society of North America (IESNA), and chairs the IESNA LM-80 working group that is focused on LED flux maintenance testing. He has been active in the LED testing and reliability field since 2004.
Is Your Light Measurement Method Undervaluing Your LEDs?
The LED industry is facing a roadblock that threatens its continued rapid evolution. Learn how to dodge it by reading this technical article.
Video: Three Steps to Improved LED Light Measurements: Repeatability
In this webinar, Jeff Hulett discusses factors that must be controlled for optimal repeatability and provides examples of what to look for and what to avoid in your measurement system.
Video: Three Steps to Improved LED Light Measurements: Accuracy
In this webinar, Jeff Hulett discusses the three LM-85 measurement methods and hones in on the method that provides the most accurate measurements: Continuous Pulse.
Measuring LED Junction Temperature (Tj)
Jeff Hulett teaches how to measure junction temperature (Tj) with this in-depth guide and step by step sample experiment.
Video: Three Steps to Improved LED Light Measurements: Power
In this webinar, Jeff Hulett teaches what equipment, measurement methods, and pulse widths will provide the best LED light measurements.
Video: Overview of LM-80 Standards Update
On August 20, 2015, Jeff Hulett, CTO of Vektrex and Jianzhong Jiao of Osram Opto Semiconductors, provided an overview of…
Improved Photometric Testing for High-Power LEDs
Photometric testing standards first appeared in the late 1800’s; they were needed by the emerging gas lighting industry. Later standards…
LM-85 Light Measurements for High Power LEDs
LM-85 is an Illuminating Engineering Society (IES) approved method for the Electrical and Photometric Measurements of High Power LEDs. The…