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1. Calibrations of Colorimeters for Display Measurements: Some Commercial Colorimeters Have Uncertainties in Display-Color Measurements That Are Too Large for Many Commercial, Industrial and Military Applications - But New NIST-Developed Calibration Proc...
Published: 12/1/1999
Authors: Steven W Brown, Yuqin Zong, Yoshihiro Ohno
Abstract: Commercial color measuring instruments (colorimeters and spectroradiometers) are currently used in a number of product development and control environments, as well as for product acceptance testing and a variety of other applications. In many cases, ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=841382

2. Characterization and Correction of Stray Light in Optical Instruments
Published: 11/1/2007
Authors: Yuqin Zong, Steven W Brown, G Meister, R Barnes, Keith R Lykke
Abstract: Improperly imaged, or scattered, optical radiation within an instrument is difficult to properly characterize and is often the dominant residual source of measurement error. Scattered light can originate from the spectral components of a point sour ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=841127

3. Correction of Stray Light In Spectroradiometers and Imaging Instruments
Published: 7/4/2007
Authors: Yuqin Zong, Steven W Brown, Keith R Lykke, Yoshihiro Ohno
Abstract: Measurement errors from stray light, spectral or spatial, are inevitable and are often the dominant source of error in spectroradiometers and imaging radiometers/photometers. We have developed a simple matrix method for correcting spatial stray light ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=841072

4. Correction of Stray Light in Spectrographs: Implications for Remote Sensing
Published: 8/22/2005
Authors: Yuqin Zong, Steven W Brown, Bettye C Johnson, Keith R Lykke, Yoshihiro Ohno
Abstract: Spectrographs are used in a variety of applications in the field of remote sensing for radiometric measurements due to the benefits of measurement speed, sensitivity, and portability. However, spectrographs are single grating instruments that are su ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=840972

5. DEVELOPMENT OF 2 pi¿ TOTAL SPECTRAL RADIANT FLUX STANDARDS AT NIST
Published: 4/23/2014
Authors: Yuqin Zong, Haiping Shen
Abstract: We have developed a new, reflector lamp based 2 pi transfer standard for total spectral radiant flux (TSRF) scale in the spectral range from 360 nm to 1100 nm. Correlated colour temperature of the standard lamp is 3000 K. Spectral aging rate is ±0.3 ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=915823

6. Detector-Based Integrating Sphere Photometry
Published: 6/24/1999
Authors: Yoshihiro Ohno, Yuqin Zong
Abstract: A new luminous flux calibration facility using a 2.5 m integrating sphere has been developed at NIST. The Absolute Integrating-Sphere Method, developed for realization of the lumen in 1995, has been applied to routine calibration measurements of lum ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=841338

7. Development of LED Photometric Standards at NIST
Published: 1/1/2004
Authors: Carl C Miller, T Heimer, Yuqin Zong, Yoshihiro Ohno, D Gyula
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=104638

8. Development of LED Photometric Standards at NIST
Published: 7/1/2003
Authors: Carl C Miller, T Heimer, Yuqin Zong, Yoshihiro Ohno, G Dezsi
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=104640

9. Development of a fully automated LED lifetime test system
Published: 9/21/2012
Authors: Yuqin Zong, Jeff Hulett
Abstract: A fully automated system for light-emitting diode (LED) lifetime test has been developed and is undergoing validation. This system uses a 1 m integrating sphere for both aging and optical measurements of 480 LEDs. It features six test zones, each of ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=912240

10. Evaluation of a Portable Hyperspectral Imager for Medical Imaging Applications
Published: 10/2/2007
Authors: David W Allen, Maritoni Abatayo Litorja, Steven W Brown, Joseph Paul Rice, Yuqin Zong
Abstract: Portable hyperspectral imagers are becoming commonly available as a commercial product. A liquid crystal tunable filter based CCD imager was evaluated and characterized for spectral stray light using a tunable laser facility. The hyperspectral imag ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=841115



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