On the Simple Prediction Method for Luminance Distribution on Luminous Surfaces of Lit Sign

• Uchida Akira

  Nihon University

• Hamamoto Takanori

  Nihonriko Shuppankai Corporation

• Matsuura Masahiro

  Nihon University

• Ohtani Yoshihiko

  Nihon University

Bibliographic Information

Other Title

• 電飾看板発光面の輝度分布簡易予測法について
• デンショクカンバン ハッコウメン ノ キド ブンプ カンイ ヨソクホウ ニ ツイテ

Abstract

In the luminance distribution of a lit sign, having no irregularities in brightness is desirable, that is, the uniformity ratio of the luminance should be good. The uniformity ratio is decided by various factors such as the number of lamps, the spacing of the lamps, the distance between the light source and the luminous surface, the inner surface reflectance, and the luminous surface reflectance. A simple prediction method to obtain the relationship between these factors and the uniformity ratio of the luminance was tested by using calculations on a two-dimensional surface. We found that the method was suitable, because the calculated and experimental results agreed with each other.

Journal

• JOURNAL OF THE ILLUMINATING ENGINEERING INSTITUTE OF JAPAN

  JOURNAL OF THE ILLUMINATING ENGINEERING INSTITUTE OF JAPAN 87 (11), 891-896, 2003

  The Illuminating Engineering Institute of Japan

Keywords

• Lit sign
• Luminance distribution
• Uniformity ratio of luminance

Details

• CRID: 1390001204085831680
• NII Article ID: 130006766718
• NII Article ID: 110001146425
• NII Book ID: AN00268860
• DOI: 10.2150/jieij1980.87.11_891
• ISSN: 1349838X
• ISSN: 21851506
• ISSN: 00192341
• NDL BIB ID: 6747092
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I6747092
• Web Site: https://www.jstage.jst.go.jp/article/jieij1980/87/11/87_11_891/_pdf
• Data Source:
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  • CiNii Articles
• Abstract License Flag: Disallowed