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.

LM-85

The History of LM-85-23

Junction Temperature (Tj)

Use Junction Temperature Measurement to Improve Lifetime Projections and Reduce Cost

LM-92

New Optical Metrology and Documentary Standards for GUV Radiation Sources

News

NIST, IUVA, and Vektrex Collaboration Produces LM-92 UV LED Testing Standard

Source Measure Unit

Simplify Short Pulse Test Implementation

Measurement Repeatability

LM-85 Light Measurements for High Power LEDs

Measurement Repeatability

Short Pulses For Better Measurements

Junction Temperature (Tj)

Thermal Resistance Measurement Using SMU

Source Measure Unit

Accurate Optical Measurements of Light Emitting Diodes and Laser Diodes

LM-80

LM-80-21 Release Improves Testing Methodology

LM-92

“Factors to Consider with UV LED Measurements”

LM-92

Practical Implementation and Applications of DCP Measurements

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