All Stories

  1. Perceived adequacy of illumination, spatial brightness, horizontal illuminance and mean room surface exitance in a small office

    Article • Lighting Research & Technology, April 2017, SAGE Publications

    Dr James Thomas Duff, Kevin Kelly

  2. Spatial brightness, horizontal illuminance and mean room surface exitance in a lighting booth

    Article • Lighting Research & Technology, August 2016, SAGE Publications

    Dr James Thomas Duff, Dr Kevin Kelly, Kevin Kelly

  3. Research Note: On the magnitude of error in the calculation of mean room surface exitance

    Article • Lighting Research & Technology, August 2016, SAGE Publications

    Dr James Thomas Duff

  4. On the calculation and measurement of mean room surface exitance

    Article • Lighting Research & Technology, July 2015, SAGE Publications

    Dr James Thomas Duff