{"id":{"repo_id":"uwo","oai_identifier":"oai:uwo.scholaris.ca:20.500.14721/34053"},"canonical_url":"https://search.dev.ndltd.org/etd/uwo/oai:uwo.scholaris.ca:20.500.14721/34053","repository":{"repo_id":"uwo","name":"Western University","base_url":"https://uwo.scholaris.ca/server/oai/request"},"display":{"title":"Parametric Design, Modeling, and Optical Evaluation of Retroreflective Prismatic Structures","abstract":"Retroreflectors (RR) are defined as passive optical structures that redirect incident light to its originating source. Specific types of retroreflectors called inverted cubes (ICs) function through total internal reflection (TIR) and are used in various applications such as measurement tools, traffic signs and automotive rear and side lighting. This thesis aims to model, analyze, fabricate and study a novel type of IC retroreflectors called right triangular prism (RTP). A parametric approach is used to model existing IC geometries from a generic unit cube and is then implemented to model the novel RTP geometry. Those elements are then tested by optical simulation software in single element and areal forms and their performances are compared. Moreover, fabricated prototype arrays of RTPs were separately tested using a digital lux meter and a luminance imaging system. Both virtual and physical optical experimentation proved that the newly designed RTP structure is indeed functional and have the potential to be used in many applications.","abstract_html":"Retroreflectors (RR) are defined as passive optical structures that redirect incident light to its originating source. Specific types of retroreflectors called inverted cubes (ICs) function through total internal reflection (TIR) and are used in various applications such as measurement tools, traffic signs and automotive rear and side lighting. This thesis aims to model, analyze, fabricate and study a novel type of IC retroreflectors called right triangular prism (RTP). A parametric approach is used to model existing IC geometries from a generic unit cube and is then implemented to model the novel RTP geometry. Those elements are then tested by optical simulation software in single element and areal forms and their performances are compared. Moreover, fabricated prototype arrays of RTPs were separately tested using a digital lux meter and a luminance imaging system. Both virtual and physical optical experimentation proved that the newly designed RTP structure is indeed functional and have the potential to be used in many applications.","abstract_has_math":false,"creators":["Hussein, Sama"],"institution":"The University of Western Ontario","degree_name":"M Eng Sci","degree_level":null,"degree_discipline":"Mechanical and Materials Engineering","degree_department":null,"school":null,"contributors":[],"advisors":["Remus Tutunea-Fatan","Evgueni Bordatchev"],"committee_chairs":[],"committee_members":[],"year":2016,"date_issued":"2016-08-24","date_published":"2016-08-24","updated_at":"2026-07-27T21:56:07Z","subjects":["Micro-optics","Retroreflector","Right Triangular Prism","Inverted Cube Retroreflector","Automotive Lighting","Reflex Reflector","Diamond Cutting"],"languages":["en_ca"],"rights":[],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"https://hdl.handle.net/20.500.14721/34053","outbound_label":"Handle","outbound_source":"dc:identifier.uri"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor.advisor","label":"Advisor","values":["Remus Tutunea-Fatan","Evgueni Bordatchev"]},{"key":"dc:creator","label":"Author","values":["Hussein, Sama"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date.accessioned","label":"Dc Date Accessioned","values":["2025-07-10T19:59:05Z"]},{"key":"dc:date.available","label":"Dc Date Available","values":["2025-07-10T19:59:05Z"]},{"key":"dc:date.issued","label":"Date","values":["2016-08-24"]},{"key":"dc:publisher","label":"Institution","values":["The University of Western Ontario"]},{"key":"dc:type","label":"Dc Type","values":["thesis"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Mechanical and Materials Engineering"]},{"key":"thesis:degree_name","label":"Degree Name","values":["M Eng Sci"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Micro-optics","Retroreflector","Right Triangular Prism","Inverted Cube Retroreflector","Automotive Lighting","Reflex Reflector","Diamond Cutting"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language.iso","label":"Language (ISO)","values":["en_ca"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier.uri","label":"Identifier URI","values":["https://hdl.handle.net/20.500.14721/34053"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["The thesis cover page in the PDF document includes references to Western University’s previous institutional repository platform, known as Scholarship@Western, and links to that platform (beginning with ir.lib.uwo.ca). In citing or referring to this thesis, use the DOI or handle from this page instead. Sample citation: Author name, \"Thesis title.\" (Year). Western University Open Repository. https://doi.org/10.71858/123456."]},{"key":"dc:description.abstract","label":"Abstract","values":["Retroreflectors (RR) are defined as passive optical structures that redirect incident light to its originating source. Specific types of retroreflectors called inverted cubes (ICs) function through total internal reflection (TIR) and are used in various applications such as measurement tools, traffic signs and automotive rear and side lighting. This thesis aims to model, analyze, fabricate and study a novel type of IC retroreflectors called right triangular prism (RTP). A parametric approach is used to model existing IC geometries from a generic unit cube and is then implemented to model the novel RTP geometry. Those elements are then tested by optical simulation software in single element and areal forms and their performances are compared. Moreover, fabricated prototype arrays of RTPs were separately tested using a digital lux meter and a luminance imaging system. Both virtual and physical optical experimentation proved that the newly designed RTP structure is indeed functional and have the potential to be used in many applications."]},{"key":"dc:title","label":"Title","values":["Parametric Design, Modeling, and Optical Evaluation of Retroreflective Prismatic Structures"]}]}],"canonical_facts":{"dc:contributor.advisor":["Remus Tutunea-Fatan","Evgueni Bordatchev"],"dc:creator":["Hussein, Sama"],"dc:date.accessioned":["2025-07-10T19:59:05Z"],"dc:date.available":["2025-07-10T19:59:05Z"],"dc:date.issued":["2016-08-24"],"dc:description":["The thesis cover page in the PDF document includes references to Western University’s previous institutional repository platform, known as Scholarship@Western, and links to that platform (beginning with ir.lib.uwo.ca). In citing or referring to this thesis, use the DOI or handle from this page instead. Sample citation: Author name, \"Thesis title.\" (Year). 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