00830nas a2200121   4500008004100000050001400041245007500055210006900130260002900199520037900228100002800607856007300635       1993                        eng d  aLBL-3503600aOffice Lighting: A Review of 80 Years of Standards and Recommendations0 aOffice Lighting A Review of 80 Years of Standards and Recommenda  aToronto, Canadac10/19933 a<p>This paper traces the development of quantitative office lighting standards from its beginnings to the present. It discusses the sources of recommended lighting practice, the nature of the quantitative recommendations, and trends in recommended values on a comparative basis. A critical assessment of contemporary standards is provided within this historical context.</p>1 aOsterhaus, Werner, K.E.  uhttps://facades.lbl.gov/publications/office-lighting-review-80-years02036nas a2200133   4500008004100000050001400041245010800055210006900163260002500232520152100257100002801778700002001806856007601826       1992                        eng d  aLBL-3503700aLarge Area Glare Sources and Their Effect on Discomfort and Visual Performance at Computer Workstations0 aLarge Area Glare Sources and Their Effect on Discomfort and Visu  aHouston, TXc10/19923 a<p>This paper studies the effects of a large area light source of variable but uniform luminance surrounding a video display terminal (VDT) on the perceived glare discomfort and visual performance of computer operators. A set of criteria was established for rating the discomfort from glare as either intolerable, disturbing, noticeable, or imperceptible. Source luminance adjustments by means of a variable transformer to match the subjective glare criteria, as well as ratings of preselected lighting conditions on a visual analog scale with the same criteria, were used to determine comfortable lighting conditions. Results from the experiment indicate that subjects reliably selected a preferred lighting condition at any time when asked to adjust the luminance to produce optimum visual comfort. There was considerable between-subject variation in the range of luminances over which the surround field was neither noticeably too dim nor noticeably too bright. Comfortable luminance ranges also varied with initial presentation luminances immediately preceding the adjustment. Subjects preferred higher luminances following high initial presentation luminances. Performance speed at a difficult letter-counting task suggests that visual performance was slightly impaired by the presence of glare discomfort. Counting errors also occurred slightly more frequently under higher surround source luminances. There was a tendency for subjects to become more susceptible to glare over the course of the experiment.</p>1 aOsterhaus, Werner, K.E.1 aBailey, Ian, L.  uhttps://facades.lbl.gov/publications/large-area-glare-sources-and-their