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You searched on: Author: yoshihiro ohno

Displaying records 31 to 40 of 180 records.
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31. PRACTICAL METHOD FOR MEASUREMENT OF AC-DRIVEN HIGH-POWER LEDS
Published: 7/14/2008
Authors: Yuqin Zong, Yoshihiro Ohno, Pei-ting Chou
Abstract: Alternating-current (AC) driven high-power LEDs are available and used in SSL products. AC LEDs operate directly from a mains supply and thus have advantages in simplifying product design, increasing product reliability, and extending product lifetim ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=903044

32. Color Quality and Spectra
Published: 7/1/2008
Authors: Yoshihiro Ohno, Wendy L Davis
Abstract: Color quality, including white light chromaticity and color rendering performance, as well as luminous efficacy of radiation, for illumination sources are introduced. Spectral design considerations for white LED and solid-state lighting products to ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=842492

33. Spectral Colour Measurement, ed. by J. Schanda
Published: 1/1/2008
Author: Yoshihiro Ohno
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=104719

34. 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

35. Realization of total spectral radiant flux scale and calibration service at NIST
Published: 7/4/2007
Authors: Yuqin Zong, Yoshihiro Ohno
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=101809

36. -Measurement of Solid-State Lighting Products,-
Published: 1/1/2007
Authors: Yoshihiro Ohno, Carl C Miller
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=104670

37. -Measuring Color Quality of Light Sources,-
Published: 1/1/2007
Authors: Wendy L Davis, Yoshihiro Ohno
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=104387

38. New photometer standards for low uncertainty illuminance scale realization
Published: 1/1/2007
Authors: George P Eppeldauer, Carl C Miller, Yoshihiro Ohno
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=104431

39. Simple Spectral Stray Light Correction Method for Array Spectroradiometers
Published: 2/20/2006
Authors: Yuqin Zong, Steven W Brown, Bettye C Johnson, Keith R. Lykke, Yoshihiro Ohno
Abstract: In many applications, the measurement accuracy of spectroradiometers, particularly instruments with a single dispersive element, is limited by the presence of stray radiation within the instrument. A simple, practical method has been developed to co ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=840968

40. Optical Metrology for LEDs and Solid State Lighting
Published: 2/10/2006
Author: Yoshihiro Ohno
Abstract: The performance of Light Emitting Diodes (LEDs), including efficiency, flux level, lifetime, and the variation of color, is advancing at a remarkable pace. LEDs are increasingly used for many applications including automotive, aviation, display, tran ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=840989



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