THIS IS HOME FOR KELTEK, LLC., IN LONGMONT, COLORADO, U.S.A.

DISPLAY-MEASUREMENT SERVICES & RESEARCH

KELTEK Logo

 KELTEK RESEARCH
KELTEK, LLC

Edward F. Kelley, Ph.D.
Consulting Physicist
E-mail
                  Address

Click Here for: NIST Publications
Contains the display-related publications created when at NIST.

DISPLAY MEASUREMENT LABORATORY

 Laboratory Photograph

PR-730
Spectroradiometer courtesy Photo Research
Our main laboratory instrument is the Photo Research PR-730 with five apertures (2, 1, 0.5, 0.25, 0.125), Bluetooth, and both AC and battery operation--a wonderful instrument providing great flexibility for our work. Without the help of Photo Research we wouldn't have much of a lab. Their long-term loan of this instrument is so very much appreciated, and we thank them.
VideoForge
VideoForge courtesy SpectraCal
We have used this AVFoundry HD video generator for both 2D and 3D generation of patterns on TVs and monitors. The gift of this generator has saved us on several occasions, and we are very grateful for it.


Westboro Photonics
Photopic Imager courtesy Westboro Photonics
400A Imaging Photometer:  With new RGBW displays entering the market, common RGB cameras may no longer be adequate for making detail luminance measurements on displays. We want to thank Westboro Photonics for this gift that provides us with photopic imaging capabilities. Here it is being used to measure a 1x1 grille on a 4k (UHD) display.


IS&GH
SPECTRORADIOMETER & ULTRA UNIFORM SOURCE

Spectroradiometer courtesy Instrument Systems
We recently received this beautiful instrument and would like to thank Instrument Systems for their generosity. The spectrometer head is a TOP-200, the spectrometer is a CAS-140, and it includes an irradiance head EOP-146.

Ultra-Uniform Calibration Source from Gooch & Housego This is another treasure recently received. We would like to thank Gooch & Housego (formerly Optronic Laboratories) for their generosity. The source has a cylindrical extension (invented by KELTEK) that improves the uniformity of the exit port by a factor of 10, down to approximately 0.1% nonuniformity. With this instrument we can maintain an in-house calibration.