Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 20 of 83 for “"Glare"”.
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Plain and polaroid sunglasses and visual performance, disability glare, and discomfort glare
Digitized by Kansas Correctional Industries
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Plain and polaroid sunglasses and visual performance, disability glare, and discomfort glare
Digitized by Kansas Correctional Industries
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Personal control of discomfort glare
Typescript (photocopy).
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Personal control of discomfort glare
Typescript (photocopy).
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Discomfort glare, light scatter, and scene structure
… negative effects of light in the work place was glare. <br></br><br></br> Holladay (Holladay, (1926)) attributed the negative effects of glare to impairment of vision caused by light scatter. Stiles (Stiles, (1929)) refuted Holladay's case by arguing that only a small proportion of the reduction …
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A study of mechanisms for discomfort glare
… which is often described as ‘discomfort glare’. The mechanisms for discomfort glare remain poorly understood, even after 50 years of multidisciplinary research in this field. The aim of this investigation was to investigate a number of relevant parameters that can affect discomfort glare …
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CRT anti-glare treatments, image quality, and human performance
… Phase I. Phase I showed that while none of the glare filters yielded improved readability or legibility over a baseline condition, the etched and low transmission filters were notable for their degradation of human performance. Mesh and quarterwave filters were found to improve perceived image …
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An Experimental Investigation of GLARE and Restructured Fiber Metal Laminates
… as Glass Laminate Aluminum Reinforced Epoxy (GLARE) was studied. An experimental investigation comprising of microscopy and tensile testing was carried out using different grades of GLARE. Microscopy revealed the construction details of GLARE, while tensile testing provided means of measuring …
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Glare Reduction by Dark Facial Markings and Bills in Birds
… bills, and facial masks aid in reducing glare, however, there have been relatively few tests of this hypothesis. Dark facial markings have been shown to have an adaptive glare-reduction function in recent field studies of a few species, but this hypothesis has never been tested in a broad …
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Understanding disability glare: the effects of scattered light on visual performance
The focus of this thesis is on how light is scattered on its passage through the optics of the human eye, and the consequences for visual performance under different lighting conditions. A number of visual psychophysical measurement techniques were employed to investigate the impact of light …
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Evaluation of glare and lighting performance in nighttime highway construction projects
… the work zone may cause harmful levels of glare for the traveling public. This type of nighttime glare needs to be controlled and minimized to ensure safety for the traveling public and construction workers. This research study focused on studying the veiling luminance ratio (glare) …
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Effects of Intersection Lighting Design on Driver Visual Performance, Perceived Visibility, and Glare
… and subjectively (perceptions of visibility and glare). Illuminating the intersection box led to superior visual performance, higher perceived visibility, and lower perceived glare. For this same configuration, plateaus in visual performance and perceived visibility occurred between 8 and 12 lux …
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Evaluation of Discomfort Glare and Pavement Marking Material Visibility for Eleven Headlamp Configurations
… that minimized the amount of discomfort glare and maximized the visibility of three types of pavement marking materials used in the study. Two baseline conditions, halogen low beam (HLB) and high-intensity discharge (HID) were measured both individually and in combination with three …
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Visibility improvements through information provision regarding sun glare : a case study in Cape Town
… due to interference with the driving task. Sun Glare is a hazard that few people anticipate. The sun is most potent to drivers when it is low in the sky on the horizon, particularly an hour or so after sunrise (dawn) and before sunset (dusk). The position of the sun and the angle of the rays …
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Trait-Based Individual Differences on Discomfort Glare Rating Responses and Related Visual Contrast Sensitivity
… differences (neuroticism and extraversion) and glare subjective responses as well as the actual contrast sensitivity when exposed to the same manipulated glare condition. In addition, the relationship between the glare subjective responses and actual contrast sensitivity was investigated. To …
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No universal support for solar glare as an evolutionary driver of malar stripes in falcons
… falcon malar stripes is that they serve as antiglare devices, with the dark pigment absorbing visionimpeding solar glare and thereby improving the falcon's ability to visually detect and target prey in bright conditions. Correlative evidence from Peregrine Falcons (Falco peregrinus) provides …
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Contrast sensitivity and glare: new measurement techniques and the visual consequences of wearing head-mounted displays
… for measuring contrast sensitivity (CS) and glare. This device allows CS without glare, with glare and disability glare scores to be recorded. After initial data collection the design of the CSC was slightly amended improving the performance of the device. The amended design of the CSC was …
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Subjective Image Quality of CRT Displays under Ambient Glare: Assessing the ISO 9241-7 Ergonomic Technical Standard
… they were Class I, II, or III. Additionally, glare filters were attached to monitors to see if they change the ISO classification of the monitor. The results of phase one indicated that positive polarity always yielded either Class I or Class II because the Large Source, Screen Image Luminance …
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Objective Image Quality of CRT Displays under Ambient Glare: Assessing the ISO 9241-7 Ergonomic Technical Standard
… The ANOVA results indicate that specular glare interferes significantly more with reading time than does diffuse glare. Diffuse (200 lux) and Specular reading times also were correlated against two ISO metrics: screen image luminance ratio (Diffuse, 200 lux) and specular reflection …
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Nighttime Driving Evaluation of Disability and Discomfort Glare from Various Headlamps under Low and High Light Adaptation Levels
… and safety may be compromised. The effects of glare produced by the headlamps of oncoming vehicles have become an interesting problem to many lighting researchers. Depending upon the opposing lighting design (beam distribution and intensity) and the lighting conditions inside the vehicle, …
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