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Author: steven brown

Displaying records 141 to 150 of 158 records.
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141. Development and Application Issues of a Spectrally Tunable LED Source
Published: Date unknown
Authors: George P Eppeldauer, Steven W Brown, G Dezsi, Irena Fryc, Yoshihiro Ohno
Abstract: A spectrally tunable solid state source based on Light Emitting Diodes (LEDs) is being developed at the National Institute of Standards and Technology (NIST). The tunable source will emulate the spectral distributions of various light sources and can ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=841824

142. Evaluation of a Portable Hyperspectral Imager for Medical Imaging Applications
Published: Date unknown
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

143. Four-Color Matrix Method for Correction of Tristimulus Colorimeters Part 2
Published: Date unknown
Authors: Yoshihiro Ohno, Steven W Brown
Abstract: The Four-Color Method was developed to improve the accuracy of tristimulus colorimeters for measurements of color displays. It was verified that the method works well for CRTs. The accuracy of this method has been studied further for spectral variat ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=841315

144. LED-Based Spectrally Tunable Source for Radiometric, Photometric and Colorimetric Applications
Published: Date unknown
Authors: Irena Fryc, Steven W Brown, George P Eppeldauer, Yoshihiro Ohno
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=841847

145. Metrology for Remote Sensing Radiometry
Published: Date unknown
Authors: Bettye C Johnson, Steven W Brown, Joseph Paul Rice
Abstract: Metrology, the science of measurement, is discussed in terms of measurements of radiant flux and associated quantities. Radiometric measurements are naturally remote, that is, they are non-contact. A broad application is Earth science, as global meas ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=841789

146. NIST Calibration Facility for Display Colorimeters
Published: Date unknown
Authors: Steven W Brown, Yoshihiro Ohno
Abstract: A calibration facility has been developed at the National Institute of Standards and Technology (NIST) to address the need for high accuracy color measurementsof displays. Calibration services tailored to display measuremets are planned for colimeter ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=841337

147. NIST Reference Spectroradiometer for Color Display Calibrations
Published: Date unknown
Authors: Steven W Brown, Yoshihiro Ohno
Abstract: A program has recently been established at the National Institute of Standards and Technology (NIST) to develop calibration services for color-measuring instruments to address commercial and industrial needs for higher-accuracy measurements of displa ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=841976

148. Radiometric Validation of NASA's Ames Research Center's Sensor Calibration Laboratory
Published: Date unknown
Authors: Steven W Brown, Bettye C Johnson, S F Biggar, E F Zalewski, J W Cooper, P Hajek, E Hildum, P Grant, R Barnes, James J. Butler
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=841853

149. Simultaneous Measurement of Up-Welling Spectral Radiance Using a Fiber-Coupled CCD Spectrograph
Published: Date unknown
Authors: M Yarbrough, S Flora, M Feinholz, Terrance Houlihan, Yong S. Kim, Steven W Brown, Bettye C Johnson, Kenneth Voss, Dennis Clark
Abstract: Determination of the water-leaving spectral radiance using in-water instrumentation requires measurements of the up-welling spectral radiance (Lu) at several depths. If these measurements are separated in time, changes in the measurement conditions ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=841121

150. Spectral Irradiance and Radiance Responsivity Calibrations Using Uniform Sources (SIRCUS) Facility at NIST
Published: Date unknown
Authors: Steven W Brown, George P Eppeldauer, Joseph Paul Rice, Jun Zhang, Keith R Lykke
Abstract: Detectors have historically been calibrated for spectral power responsivity at the National Institute of Standards and Technology (NIST) using a lamp-monochromator system to tune the wavelength of the excitation source. Silicon detectors can be cali ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=841840



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