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Home › Archives for Jeff Hulett

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.

Articles

The History of LM-85-23

Events

Use Junction Temperature Measurement to Improve UV-LED Lifetime Projections and Reduce Cost

UVC Peak Wavelength vs Current 2 Ways

LM-92

New Optical Metrology and Documentary Standards for GUV Radiation Sources

LM-92 data illustrated

News

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

Vektrex SMU 10A short pulse 10us on time

Source Measure Unit

Simplify Short Pulse Test Implementation

Spectrometer Int Time

Measurement Repeatability

LM-85 Light Measurements for High Power LEDs

Short Pulses Better Measurements

Measurement Repeatability

Short Pulses For Better Measurements

Vektrex SMU generated heat path curves

Junction Temperature (Tj)

Thermal Resistance Measurement Using SMU

Vektrex SMU ompare short and long pulse LI sweeps

Source Measure Unit

Accurate Optical Measurements of Light Emitting Diodes and Laser Diodes

LM-80-21 Reliability standard

LM-80

LM-80-21 Release Improves Testing Methodology

Factors to consider when testing UV LEDs

LM-92

“Factors to Consider with UV LED Measurements”

Vektrex SMU 10A short pulse 10us on time

LM-92

Practical Implementation and Applications of DCP Measurements

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