Discomfort Glare refers to the sensation one experiences when the overall illumination is too bright e.g. on a snow field under bright sun. Disability Glare refers to reduced visibility of a target due to the presence of a light source elsewhere in the field.
sdhawan.com/ophthalmology/glare.html sdhawan.com/ophthalmology/glare.html
At low levels of glare people will often report annoyance rather than discomfort per se. Although overall performance can be affected by this annoyance, ... At higher levels of glare physical discomfort is reported, rather than simply annoyance, and this can be accompanied by disablement (disability glare).
www-staff.lboro.ac.uk/~huph/discomg.htm
Discomfort Glare is glare which is distracting or uncomfortable, which interferes with the perception of visual information required to satisfy biological needs, but which does not significantly reduce the ability to see information needed for activities.
www.schorsch.com/kbase/glossary/glare.html www.schorsch.com/kbase/glossary/glare.html
scattered light is called "disability glare" because it can noticeably interfere with the visual task ... Light fixtures, windows and reflections from shiny surfaces are common sources of "discomfort glare" that may be objectionable even if they do not interfere with the task.
www.pc.ibm.com/ww/healthycomputing/vdt19d.html
Engineering technical paper: Rearward Vision, Driver Confidence, and Discomfort Glare Using An Electrochromic Rearview Mirror ... and 3) the effect of reflectivity on discomfort glare is not fully predicted by its effect on illumination at the subject's eye point.
www.sae.org/technical/papers/910822
The dependent variables were two subjective discomfort glare ratings—a far rating and a near rating—using the deBoer scale. The far rating was the discomfort that a participant experienced while driving a segment of road that stretched from 396.2 to 304.8 m (1,300 to 1,000 ft) away from the opposing headlamps.
www.tfhrc.gov/safety/hsis/pubs/04138/methods.htm
The lights also need to be safe and not cause any discomfort for other drivers on the road. The study will take place on the Smart Road testing facility. The road will be closed off to all traffic except for experimental vehicles. ... Your job will be to evaluate glare. Do you have any questions at this time? Now I have...
www.tfhrc.gov/safety/hsis/pubs/04138/appendixd.htm
Fundamentals of Discomfort Glare ... Origins of discomfort glare ... Pupil responses and discomfort glare...
personalpages.manchester.ac.uk/staff/david.Carden/Disco... personalpages.manchester.ac.uk/staff/david.Carden/Discomfort_Glare.html
Ichikoh Industries Ltd., Tokyo, Japan ... Title: Rearward vision, driver confidence, and discomfort glare using an electrochromic rearview mirror ... Other Contributor(s): Sivak, M. Gellatly, A. W. Corporate Author: University of Michigan, Ann Arbor, Transportation Research Institute...
deepblue.lib.umich.edu/handle/2027.42/888
In comparison to the relatively more complicated glare prediction indices involving various factors and calculations, luminance ratio recommendations are an easy to understand tool which with further study could become a powerful method of site and even user-specific glare prediction in the future...
researcharchive.vuw.ac.nz/handle/10063/651
Definitions