Kazuaki Ohkubo
Panasonic
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Publication
Featured researches published by Kazuaki Ohkubo.
Journal of The Illuminating Engineering Institute of Japan | 2009
Toshiyuki Mori; Kosei Oshima; Kazuaki Ohkubo
A method of calibrating low-intensity spectral irradiance using a mesh attenuator and a 500-W spectral irradiance standard lamp has been developed. The intensity of the lamps irradiance is the same as that of a 20-W spectral irradiance standard lamp. The photometric value of the 500-W lamp stabilizes (±0.04%) within 15 min. of being turned on. In testing, the reproducibility of the photometric value for the mesh attenuator and detector setting was ±0.07%. The stray light under indoor illuminant was under 0.002% of the photometric value. The uncertainty of this calibration system was less than when using a 20-W spectral irradiance standard lamp.
Journal of The Illuminating Engineering Institute of Japan | 1999
Kazuaki Ohkubo; Teruaki Shigeta
Archive | 2005
Kazuaki Ohkubo; Mitsuhiko Kimoto; Yuriko Kaneko; Mika Sakaue; Makoto Horiuchi
Archive | 2005
Yuriko Kaneko; Makoto Horiuchi; Kazuaki Ohkubo; Mitsuhiko Kimoto; Mika Sakaue
Archive | 2004
Makoto Horiuchi; Mitsuhiko Kimoto; Kazuaki Ohkubo; Yuriko Kaneko; Mika Sakaue
Archive | 2011
Yoshihiro Osawa; Kazuaki Ohkubo
Archive | 2010
Kazuaki Ohkubo; Shunsuke Mishima
Archive | 1995
Kazuaki Ohkubo
Archive | 2004
Kazuaki Ohkubo; Mitsuhiko Kimoto
Archive | 2003
Makoto Ishizuka; Daniel Hogan; Kazuaki Ohkubo; Mitsuhiko Kimoto
