Title:
道路反射率及び街路照明の監視
Document Type and Number:
Japanese Patent JP2006524334
Kind Code:
A
Abstract:
This invention relates to an apparatus for measuring and recording reflectance of a road surface compliance with luminance-specified lighting standards for roads, said apparatus including at least one road surface reflectance monitoring system capable of determining at least one spectral component and brightness of light reflected from the road surface, said system including at least one light emitter adapted to emit light toward the road surface, at least two non-coaxial light detectors adapted to detect light reflected from the road surface, to determine said spectral component, and at least one further light emitter adapted to emit light toward the road surface, at least one further light detector adapted to detect light reflected from the road surface, to determine said brightness, said apparatus further including at least one data recording system, and at least one output device adapted to receive data from the light emitter and the light detectors and provide at least one output signal to the said at least one data recording system regarding a level of received reflectance from the road surface.
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Inventors:
Roger John Loveless
Application Number:
JP2006507908A
Publication Date:
October 26, 2006
Filing Date:
April 26, 2004
Export Citation:
Assignee:
Odyssey Energy Limited
International Classes:
G01N21/47; G01J1/08; G01J1/42; H05B37/02; H05B39/04
Attorney, Agent or Firm:
Masatake Shiga
Takashi Watanabe
Yasuhiko Murayama
Shinya Mitsuhiro
Takashi Watanabe
Yasuhiko Murayama
Shinya Mitsuhiro