長期使用による照明特性劣化についての調査報告(<特集>照明器具の適正交換時期に関する提言作成に向けて)

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概要

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• Although some surveys have been conducted on the issue of lamp replacement or luminaire cleaning, not enough information about deterioration of illuminating properties, caused by a long-term usage, is available. Therefore, we conducted a preliminary survey on the deteriorations of the luminaires that have been actually used (for 12 to 41 years in offices). We measured the light output ratio, the vertical illuminance, and the distribution curve of luminous intensity, at the time these sample luminaires were removed, and we understood the degree of deterioration (20% lower output ratio), and confirmed that cleaning luminaires (light reflectors), which the Illuminating Engineering Institute of Japan has been proposing, was proven to be effective.

• 2010-09-01

著者

• 松川 一行

  パナソニック電工(株)照明事業本部照明品質革新センター

関連論文

• 長期使用による照明特性劣化についての調査報告(照明器具の適正交換時期に関する提言作成に向けて)

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