Prediction of the Illuminance Distribution on the Floor in a Room Containing Fixtures

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概要

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• We propose an approximate method of calculating the working plane illuminance in a room containing fixtures. This method requires only one-eighth as many calculated form factors as conventional methods, takes little time, and can use a small memory. However, it must calculate a great many view functions which are determined by the ability of the centre or some part of the arbitary element to 'see' the centre of other elements. This paper describes the effect of room fixtures on the floor illuminance distribution in a room with a louvered light source having either a narrow or wide angle. The results show that it does not depend on the luminous intensity distribution of light source. It also proposes a simple method of predicting the floor illuminance distribution in such a room and presents results that agree well with the approximately calculated ones.

• 社団法人照明学会の論文

著者

• Isomura Minoru

  Nihon University

• IKEMOTO Naotaka

  Nihon University

関連論文

• A Basic Study on the Estimation of Reflectance Characteristics of Glossy Curved Objects
• Prediction of the Illuminance Distribution on the Floor in a Room Containing Fixtures
• On the Estimation of the Luminance Distribution by the Diffuse Reflection Component of an Object's Surface and Shape Measurement : Analysis by the Numerical Experiment

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