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.
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Showing 1 to 7 of 7 for “"headlamps"”.
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Nighttime Driving Evaluation of Disability and Discomfort Glare from Various Headlamps under Low and High Light Adaptation Levels
… 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, oncoming headlamps can be …
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Impact of technology readiness in the development of automotive systems when incorporating new styling : a graph theory approach to OPM hierarchical decomposition of the system's architecture
… architecture. The system of interest was the headlamps system developed under Ford Global Product Development System (GPDS) using the Global Exterior Lighting Plan (PDP).
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Effects of Intersection Lighting Design on Driver Visual Performance, Perceived Visibility, and Glare
… account for the role of human vision or vehicle headlamps or the numerous pedestrian-vehicle conflict locations at intersections. For effective intersection lighting design, empirical evidence is required regarding the effects of lighting configuration (part of the intersection illuminated) and …
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High power superluminescent light-emitting diodes
… for everyday applications like displays and car headlamps. This work focusses on the development of GaN based surface emitting SLEDs. The devices use an integrated turning mirror at either end of the ridge waveguide to divert light downward through the transparent substrate. The turning mirror in …
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Analysis and Design of High-Intensity-Discharge Lamp Ballast for Automotive Headlamp
… demand to replace the conventional halogen headlamps with the newly introduced small-wattage metal halide HID lamps. However, this lamp demands a highly efficient ballast and very complex control circuitry that can achieve fast turn-on and different regulation modes during the lamp start-up …
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Evaluation of Discomfort Glare and Pavement Marking Material Visibility for Eleven Headlamp Configurations
This research effort focused on ascertaining the headlamp technology (of the eleven specified) 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 …
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Evaluation of glare and lighting performance in nighttime highway construction projects
… including fixed roadway lighting, vehicles headlamps, and nighttime lighting equipment in the work zone; (3) the main types of glare which can be classified based on its source as either direct or reflected glare; and based on its impact as discomfort, disabling, or blinding glare; (4) …