Dr. Yoshihiro Ohno Profile

Dr. Yoshihiro Ohno

NIST Fellow at National Institute of Standards and Technology

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Author

Publications (17)

Proceedings Article | 27 May 2011 Paper

Fluorescence errors in integrating sphere measurements of remote phosphor type LED light sources

A. Keppens, Y. Zong, V. Podobedov, M. Nadal, P. Hanselaer, Y. Ohno

Proceedings Volume 8082, 808241 (2011) https://doi.org/10.1117/12.889382

KEYWORDS: Luminescence, Integrating spheres, Optical spheres, Light emitting diodes, Light sources, Goniophotometry, Reflectivity, Lamps, Calibration, Error analysis

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SPIE Journal Paper | 1 March 2010

Color quality scale

Wendy Davis, Yoshihiro Ohno

OE, Vol. 49, Issue 03, 033602, (March 2010) https://doi.org/10.1117/12.10.1117/1.3360335

KEYWORDS: Light emitting diodes, Light sources, RGB color model, Lamps, Reflectivity, Colorimetry, Optical engineering, Light sources and illumination, Color difference, Visualization

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Proceedings Article | 18 August 2009 Paper

Practical method for measurement of AC-driven LEDs at a given junction temperature by using active heat sinks

Yuqin Zong, Pei-Ting Chou, Ming-Te Lin, Yoshi Ohno

Proceedings Volume 7422, 742208 (2009) https://doi.org/10.1117/12.826743

KEYWORDS: Light emitting diodes, Temperature metrology, Solid state lighting, Resistance, Optical testing, Product engineering, Reliability, Thermography, Stars, Power supplies

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Proceedings Article | 10 February 2006 Paper

Optical metrology for LEDs and solid state lighting

Yoshi Ohno

Proceedings Volume 6046, 604625 (2006) https://doi.org/10.1117/12.674617

KEYWORDS: Light emitting diodes, Solid state lighting, Calibration, Luminous efficacy, Light sources and illumination, Light sources, Photometry, Lamps, General lighting, RGB color model

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SPIE Journal Paper | 1 November 2005

LED-based spectrally tunable source for radiometric, photometric, and colorimetric applications

Irena Fryc, Steven Brown, George Eppeldauer, Yoshihiro Ohno

OE, Vol. 44, Issue 11, 111309, (November 2005) https://doi.org/10.1117/12.10.1117/1.2127952

KEYWORDS: Light emitting diodes, Calibration, LCDs, Photometry, Light sources, Lamps, Optical engineering, CRTs, Optimization (mathematics), Detection and tracking algorithms

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SPIE Journal Paper | 1 November 2005

Spectral design considerations for white LED color rendering

Yoshihiro Ohno

OE, Vol. 44, Issue 11, 111302, (November 2005) https://doi.org/10.1117/12.10.1117/1.2130694

KEYWORDS: Light emitting diodes, Lamps, RGB color model, Line edge roughness, Luminous efficacy, Light sources, LED lighting, Optical engineering, General lighting, Deep ultraviolet

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Proceedings Article | 14 September 2005 Paper

Toward an improved color rendering metric

Wendy Davis, Yoshi Ohno

Proceedings Volume 5941, 59411G (2005) https://doi.org/10.1117/12.615388

KEYWORDS: Colorimetry, Light emitting diodes, Reflectivity, Lamps, Light sources, Solid state lighting, Visualization, Statistical analysis, Black bodies, Computer simulations

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Proceedings Article | 14 September 2005 Paper

Spectral matching with an LED-based spectrally tunable light source

I. Fryc, S. Brown, Y. Ohno

Proceedings Volume 5941, 59411I (2005) https://doi.org/10.1117/12.614952

KEYWORDS: Light emitting diodes, Lamps, Solids, Light sources, Computer simulations, Optimization (mathematics), Integrating spheres, Standards development, Visible radiation, Light sources and illumination

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Proceedings Article | 22 August 2005 Paper

Correction of stray light in spectrographs: implications for remote sensing

Yuqin Zong, Steven Brown, B. Johnson, Keith Lykke, Yoshi Ohno

Proceedings Volume 5882, 588201 (2005) https://doi.org/10.1117/12.617608

KEYWORDS: Spectrographs, Stray light, Calibration, Remote sensing, Ultraviolet radiation, Light emitting diodes, Detector arrays, Spectroscopy, Error analysis, Spectral calibration

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Proceedings Article | 20 October 2004 Paper

LED photometric calibrations at the National Institute of Standards and Technology and future measurement needs of LEDs

C. Cameron Miller, Yuqin Zong, Yoshihiro Ohno

Proceedings Volume 5530, (2004) https://doi.org/10.1117/12.566635

KEYWORDS: Light emitting diodes, Calibration, Photometry, Optical spheres, Integrating spheres, Standards development, Sensors, Lamps, Ultraviolet radiation, LED lighting

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Proceedings Article | 20 October 2004 Paper

A spectrally tunable solid-state source for radiometric, photometric, and colorimetric applications

Irena Fryc, Steven Brown, George Eppeldauer, Yoshihiro Ohno

Proceedings Volume 5530, (2004) https://doi.org/10.1117/12.565053

KEYWORDS: Light emitting diodes, Calibration, LCDs, Photometry, Lamps, Light sources, CRTs, Detection and tracking algorithms, Optimization (mathematics), Integrating spheres

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Proceedings Article | 20 October 2004 Paper

Color rendering and luminous efficacy of white LED spectra

Yoshihiro Ohno

Proceedings Volume 5530, (2004) https://doi.org/10.1117/12.565757

KEYWORDS: Light emitting diodes, Lamps, Luminous efficacy, Line edge roughness, Light sources, RGB color model, LED lighting, Deep ultraviolet, Radium, General lighting

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Proceedings Article | 8 August 2003 Paper

NIST display colorimeter calibration facility

Steven Brown, Yoshihiro Ohno

Proceedings Volume 4826, (2003) https://doi.org/10.1117/12.514537

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Proceedings Article | 15 May 2001 Paper

Absolute radiometric calibration of digital imaging systems

Steven Brown, Thomas Larason, Catherine Habauzit, George Eppeldauer, Yoshihiro Ohno, Keith Lykke

Proceedings Volume 4306, (2001) https://doi.org/10.1117/12.426952

KEYWORDS: Calibration, Charge-coupled devices, CCD cameras, Sensors, Cameras, Optical spheres, Microscopes, Imaging systems, Spectrographs, Digital imaging

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Proceedings Article | 30 April 2001 Paper

Standard illumination source for the evaluation of display measurement methods and instruments

John Libert, Paul Boynton, Edward Kelley, Steven Brown, Yoshihiro Ohno, Farshid Manoocheri

Proceedings Volume 4295, (2001) https://doi.org/10.1117/12.424882

KEYWORDS: Optical filters, Calibration, Prototyping, Standards development, Metrology, Stray light, Visible radiation, Environmental sensing, Diagnostics, Display technology

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Proceedings Article | 12 April 1999 Paper

NIST calibration facility for display colorimeters

Steven Brown, Yoshihiro Ohno

Proceedings Volume 3636, (1999) https://doi.org/10.1117/12.344643

KEYWORDS: LCDs, Calibration, CRTs, Stray light, Scattering, Monochromators, Standards development, Error analysis, Interference (communication), Solids

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Proceedings Article | 26 September 1997 Paper

Establishment of the NIST flashing-light photometric unit

Yoshihiro Ohno, Yuqin Zong

Proceedings Volume 3140, (1997) https://doi.org/10.1117/12.284086

KEYWORDS: Photometry, Calibration, Xenon, Standards development, Photodiodes, Capacitance, Head, Capacitors, Light, Sensors

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Showing 5 of 17 publications

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