Effect of illuminance and color temperature on productivity

Tomohiro Warita, Toshiharu Ikaga, Kazuyoshi Harimoto, Maki Ichihara

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The purpose of this study is to clarify the effect of illuminance and color temperature on human productivity and lighting satisfaction. In this study, we performed a laboratory experiment. To evaluate lighting satisfaction, subjects responded to a questionnaire, and to evaluate objective performance, subjects performed four tasks involving information processing and creative activity. Seven combinations of 3 illuminances (375 lx, 750 lx, 1200 lx) and 3 color temperatures (3000 K, 4000 K, 5000 K) were investigated. Combinations of illuminance and color temperature that maximize objective performance differed by task. The regression equation (r = 0.55) states that when lighting satisfaction is increased, the relative performance of office work will also increase. The regression can calculate and relative performance of office work from lighting satisfaction vote of occupants.

Original languageEnglish
Title of host publication12th International Conference on Indoor Air Quality and Climate 2011
Pages1785-1790
Number of pages6
Volume3
Publication statusPublished - 2011
Event12th International Conference on Indoor Air Quality and Climate 2011 - Austin, TX, United States
Duration: 2011 Jun 52011 Jun 10

Other

Other12th International Conference on Indoor Air Quality and Climate 2011
CountryUnited States
CityAustin, TX
Period11/6/511/6/10

Fingerprint

Lighting
Productivity
Color
Temperature
Experiments

Keywords

  • Creative activities
  • Lighting
  • Lighting satisfaction
  • Performance
  • Subjective experiment

ASJC Scopus subject areas

  • Pollution

Cite this

Warita, T., Ikaga, T., Harimoto, K., & Ichihara, M. (2011). Effect of illuminance and color temperature on productivity. In 12th International Conference on Indoor Air Quality and Climate 2011 (Vol. 3, pp. 1785-1790)

Effect of illuminance and color temperature on productivity. / Warita, Tomohiro; Ikaga, Toshiharu; Harimoto, Kazuyoshi; Ichihara, Maki.

12th International Conference on Indoor Air Quality and Climate 2011. Vol. 3 2011. p. 1785-1790.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Warita, T, Ikaga, T, Harimoto, K & Ichihara, M 2011, Effect of illuminance and color temperature on productivity. in 12th International Conference on Indoor Air Quality and Climate 2011. vol. 3, pp. 1785-1790, 12th International Conference on Indoor Air Quality and Climate 2011, Austin, TX, United States, 11/6/5.
Warita T, Ikaga T, Harimoto K, Ichihara M. Effect of illuminance and color temperature on productivity. In 12th International Conference on Indoor Air Quality and Climate 2011. Vol. 3. 2011. p. 1785-1790
Warita, Tomohiro ; Ikaga, Toshiharu ; Harimoto, Kazuyoshi ; Ichihara, Maki. / Effect of illuminance and color temperature on productivity. 12th International Conference on Indoor Air Quality and Climate 2011. Vol. 3 2011. pp. 1785-1790
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