Effect of Print Contrast on Reflected Glare

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概要

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• Reducing reflected glare on visual tasks, such as prints in offices, is one of the most important factors in office lighting.Experimental studies the authorsre carried out to reduce the reflected glare. The authors studied, through a subjective evaluation, to obtain permissible limit of reflecting source luminance, and found relationships among various lighting factors : permissible limit of light source luminance, illuminance on visual task, luminance contrast between character and background, and print contrast(luminance contrast between character and background without reflected glare).(1) Print contrast had considerable effect on the same contrast with reflcted glare superposed. The latter required higher luminance contrast without reflected glare with the same background luminance.(2) Accordingly, with different luminance contrasts without reflected glare, legibilities of character with reflected glare are different, even with the same background luminance and luminance contrast.

• 社団法人照明学会の論文

著者

• Nakamura Hajimu

  Matsushita Electric Works Ltd

• Nakamura Hajimu

  Engineering Center Matsushita Electric Works Ltd.

• Tabuchi Yoshihiko

  Matsushita Electric Works Ltd

• Noguchi Toru

  Fuculty Of Engineering Setsunan University

• OSE Atsushi

  Matsushita Electric Works, Ltd

• Ose Atsushi

  Matsushita Electric Works Ltd

関連論文

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• Luminance distribution of Intermediate Sky
• Effect of Print Contrast on Reflected Glare
• Comparison of Glare Sensation from the Light Sources in the Central Vision and the Peripheral Vision
• Relationship between Illuminance/Color Temperature and Preference of Atmosphere

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