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| Glare | 6 |
| Lighting | 6 |
| Task Performance | 6 |
| Visual Environment | 6 |
| Vision | 3 |
| Visual Discrimination | 3 |
| Contrast | 2 |
| Design Requirements | 2 |
| Lighting Design | 2 |
| Measurement Techniques | 2 |
| Visual Perception | 2 |
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| Illuminating Engineering | 3 |
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Blackwell, H. Richard – Illuminating Engineering, 1963
The results of all basic measurements and calculations of reflected glare for different lighting materials and conditions are presented in a series of tables and charts. All basic concepts of a quantitative method for evaluating the visual significance of reflected glare are identified in relationship to different types of visual performance. The…
Descriptors: Glare, Lighting, Measurement Techniques, Task Performance
Download full textTurek, Robert W. – 1969
In order to judge or design the lighting of an interior a person must be able to understand and take into account many aspects of seeing and illumination. Important areas of consideration are--(1) factors that contribute to the visibility of an object: size, brightness, contrast, and time, (2) radiant energy with regard to the visible spectrums of…
Descriptors: Color, Contrast, Glare, Lighting
Sampson, Foster K. – 1970
Eighteen significantly different classroom lighting systems were measured and analyzed in order to determine how contrasts from different light sources affect the ability to see visual tasks in the school room. Using criteria and techniques established from previous lighting research, the lighting systems are evaluated according to their…
Descriptors: Classroom Environment, Classroom Research, Contrast, Glare
Blackwell, H. Richard – Illuminating Engineering, 1963
An application method for evaluating the visual significance of reflected glare is described, based upon a number of decisions with respect to the relative importance of various aspects of visual performance. A standardized procedure for evaluating the overall effectiveness of lighting from photometric data on materials or installations is needed…
Descriptors: Ceilings, Glare, Lighting, Measurement Techniques
State Univ. Construction Fund, Albany, NY. – 1968
This interim report informs the eventual user of the direction of the long-term program; specific criteria are not provided. Five current guidelines in lighting practice were disavowed as follows--(1) that low levels of illumination cause organic harm to the eyes, (2) that the footcandle is the best criterion for determining the proper…
Descriptors: Conference Reports, Design Requirements, Environmental Research, Glare
Crouch, C. L.; Kaufman, J. E. – Illuminating Engineering, 1963
The role of reflected glare and visual viewing angles in near task performance is discussed, and following statements are reported--(1) a worker at a desk normally assumes a position in which his eyes traverse an area of work extending from a point approximately vertically below his eyes to a point not more than 40 degrees from the vertical, (2) a…
Descriptors: Controlled Environment, Design Requirements, Glare, Human Posture
