Development of a Photometer Having Variable Spectral Responsivity

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概要

• 論文の詳細を見る

• rights: 社団法人照明学会rights: 本文データは学協会の許諾に基づきCiNiiから複製したものであるrelation: IsVersionOf: http://ci.nii.ac.jp/naid/110001144229/A photometer having variable spectral responsivity has been developed. The equipment is composed of a linear variable interference filter (LVIF), a MOS linear image sensor (CCD), driver/amplifier circuits, a 12-bits A/D converter and a note-type personal computer. The intrinsic relative spectral responsivity has been calibrated throughout the wavelength range from 400 to 700 nm by using the distribution temperature standard lamps. Then, it is possible to change its effective spectral responsivity as desired by weighting the output of each CCD element. In this study, the performance of the equipment as an illuminance meter, a simple spectroradiometer and a colorimeter has been evaluated by setting the relative spectral responsivity of the equipment to the spectral luminous efficiency, to a constant and to the matching functions, respectively. As a result, it is shown that the equipment has similar performance to a precise class of illuminance meter on the market. It is confirmed that the performance of the equipment almost meets the requirement for its use as a simple spectroradiometer and a colorimeter. Consequently, it is expected that this equipment can function as a mesopic photometer whose spectral responsivity varies with brightness.

• 社団法人照明学会の論文

著者

• Nakagawa Y

  Saitama University

• Nakagawa Yasuo

  Department Of Applied Physics Faculty Of Engineering Osaka University

• OHTANI FUMIO

  Department of Physiology, Shimane Medical University

• Yaji T

  Saitama University

• Yaji Tamaki

  Department Of Electrical Engineering Faculty Of Science And Technology Keio University

• OHTANI Fumio

  Saitama University

• TSUCHIYA Ryuji

  Department of Electrical and Electronic Systems, Faculty of Engineering, Saitama University

• Tsuchiya Ryuji

  Department Of Electrical And Electronic Systems Faculty Of Engineering Saitama University

• Ohtani Fumio

  Department Of Physiology Shimane Medical University

• 中川 靖夫

  Department of Astronomy, Beijing Normal University

• 谷治 環

  Department of Electrical and Electronic Systems, Faculty of Engineering, Saitama University

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