{"id":"https://openalex.org/W2295392421","doi":"https://doi.org/10.1109/nems.2015.7147507","title":"Study of freeform lens for UV-LEDs exposure system with reflector for uniform irradiance","display_name":"Study of freeform lens for UV-LEDs exposure system with reflector for uniform irradiance","publication_year":2015,"publication_date":"2015-04-01","ids":{"openalex":"https://openalex.org/W2295392421","doi":"https://doi.org/10.1109/nems.2015.7147507","mag":"2295392421"},"language":"en","primary_location":{"id":"doi:10.1109/nems.2015.7147507","is_oa":false,"landing_page_url":"https://doi.org/10.1109/nems.2015.7147507","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"10th IEEE International Conference on Nano/Micro Engineered and Molecular Systems","raw_type":"proceedings-article"},"type":"article","indexed_in":["crossref"],"open_access":{"is_oa":false,"oa_status":"closed","oa_url":null,"any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5101790872","display_name":"Y. C. Chen","orcid":null},"institutions":[{"id":"https://openalex.org/I142974352","display_name":"National Sun Yat-sen University","ror":"https://ror.org/00mjawt10","country_code":"TW","type":"education","lineage":["https://openalex.org/I142974352"]}],"countries":["TW"],"is_corresponding":true,"raw_author_name":"Y. C. Chen","raw_affiliation_strings":["Department of Mechanical and Electro-Mechanical Engineering, Center for Nanoscience and Nanotechnology, National Sun Yat-Sen University, Kaohsiung 80424, Taiwan","Department of Mechanical and Electro-Mechanical Engineering, National Sun Yat-Sen University, Kaohsiung, Taiwan"],"affiliations":[{"raw_affiliation_string":"Department of Mechanical and Electro-Mechanical Engineering, Center for Nanoscience and Nanotechnology, National Sun Yat-Sen University, Kaohsiung 80424, Taiwan","institution_ids":["https://openalex.org/I142974352"]},{"raw_affiliation_string":"Department of Mechanical and Electro-Mechanical Engineering, National Sun Yat-Sen University, Kaohsiung, Taiwan","institution_ids":["https://openalex.org/I142974352"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5076620228","display_name":"Cheng Pan","orcid":"https://orcid.org/0000-0002-3948-9558"},"institutions":[{"id":"https://openalex.org/I142974352","display_name":"National Sun Yat-sen University","ror":"https://ror.org/00mjawt10","country_code":"TW","type":"education","lineage":["https://openalex.org/I142974352"]}],"countries":["TW"],"is_corresponding":false,"raw_author_name":"C. T. Pan","raw_affiliation_strings":["Department of Mechanical and Electro-Mechanical Engineering, Center for Nanoscience and Nanotechnology, National Sun Yat-Sen University, Kaohsiung 80424, Taiwan","Department of Mechanical and Electro-Mechanical Engineering, National Sun Yat-Sen University, Kaohsiung, Taiwan"],"affiliations":[{"raw_affiliation_string":"Department of Mechanical and Electro-Mechanical Engineering, Center for Nanoscience and Nanotechnology, National Sun Yat-Sen University, Kaohsiung 80424, Taiwan","institution_ids":["https://openalex.org/I142974352"]},{"raw_affiliation_string":"Department of Mechanical and Electro-Mechanical Engineering, National Sun Yat-Sen University, Kaohsiung, Taiwan","institution_ids":["https://openalex.org/I142974352"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5101552719","display_name":"T.L. Yang","orcid":"https://orcid.org/0000-0003-3748-593X"},"institutions":[{"id":"https://openalex.org/I142974352","display_name":"National Sun Yat-sen University","ror":"https://ror.org/00mjawt10","country_code":"TW","type":"education","lineage":["https://openalex.org/I142974352"]}],"countries":["TW"],"is_corresponding":false,"raw_author_name":"T. L. Yang","raw_affiliation_strings":["Department of Mechanical and Electro-Mechanical Engineering, Center for Nanoscience and Nanotechnology, National Sun Yat-Sen University, Kaohsiung 80424, Taiwan","Department of Mechanical and Electro-Mechanical Engineering, National Sun Yat-Sen University, Kaohsiung, Taiwan"],"affiliations":[{"raw_affiliation_string":"Department of Mechanical and Electro-Mechanical Engineering, Center for Nanoscience and Nanotechnology, National Sun Yat-Sen University, Kaohsiung 80424, Taiwan","institution_ids":["https://openalex.org/I142974352"]},{"raw_affiliation_string":"Department of Mechanical and Electro-Mechanical Engineering, National Sun Yat-Sen University, Kaohsiung, Taiwan","institution_ids":["https://openalex.org/I142974352"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5034533509","display_name":"Shin\u2010Pon Ju","orcid":"https://orcid.org/0000-0002-9454-8899"},"institutions":[{"id":"https://openalex.org/I142974352","display_name":"National Sun Yat-sen University","ror":"https://ror.org/00mjawt10","country_code":"TW","type":"education","lineage":["https://openalex.org/I142974352"]}],"countries":["TW"],"is_corresponding":false,"raw_author_name":"S.P. Ju","raw_affiliation_strings":["Department of Mechanical and Electro-Mechanical Engineering, Center for Nanoscience and Nanotechnology, National Sun Yat-Sen University, Kaohsiung 80424, Taiwan","Department of Mechanical and Electro-Mechanical Engineering, National Sun Yat-Sen University, Kaohsiung, Taiwan"],"affiliations":[{"raw_affiliation_string":"Department of Mechanical and Electro-Mechanical Engineering, Center for Nanoscience and Nanotechnology, National Sun Yat-Sen University, Kaohsiung 80424, Taiwan","institution_ids":["https://openalex.org/I142974352"]},{"raw_affiliation_string":"Department of Mechanical and Electro-Mechanical Engineering, National Sun Yat-Sen University, Kaohsiung, Taiwan","institution_ids":["https://openalex.org/I142974352"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5046226377","display_name":"Yann\u2010Rong Lin","orcid":"https://orcid.org/0000-0001-6833-8276"},"institutions":[{"id":"https://openalex.org/I142974352","display_name":"National Sun Yat-sen University","ror":"https://ror.org/00mjawt10","country_code":"TW","type":"education","lineage":["https://openalex.org/I142974352"]}],"countries":["TW"],"is_corresponding":false,"raw_author_name":"Y. R. Lin","raw_affiliation_strings":["Department of Mechanical and Electro-Mechanical Engineering, Center for Nanoscience and Nanotechnology, National Sun Yat-Sen University, Kaohsiung 80424, Taiwan","Department of Mechanical and Electro-Mechanical Engineering, National Sun Yat-Sen University, Kaohsiung, Taiwan"],"affiliations":[{"raw_affiliation_string":"Department of Mechanical and Electro-Mechanical Engineering, Center for Nanoscience and Nanotechnology, National Sun Yat-Sen University, Kaohsiung 80424, Taiwan","institution_ids":["https://openalex.org/I142974352"]},{"raw_affiliation_string":"Department of Mechanical and Electro-Mechanical Engineering, National Sun Yat-Sen University, Kaohsiung, Taiwan","institution_ids":["https://openalex.org/I142974352"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5087337526","display_name":"I-Chou Wu","orcid":null},"institutions":[{"id":"https://openalex.org/I142974352","display_name":"National Sun Yat-sen University","ror":"https://ror.org/00mjawt10","country_code":"TW","type":"education","lineage":["https://openalex.org/I142974352"]}],"countries":["TW"],"is_corresponding":false,"raw_author_name":"I. C. Wu","raw_affiliation_strings":["Department of Mechanical and Electro-Mechanical Engineering, Center for Nanoscience and Nanotechnology, National Sun Yat-Sen University, Kaohsiung 80424, Taiwan","Department of Mechanical and Electro-Mechanical Engineering, National Sun Yat-Sen University, Kaohsiung, Taiwan"],"affiliations":[{"raw_affiliation_string":"Department of Mechanical and Electro-Mechanical Engineering, Center for Nanoscience and Nanotechnology, National Sun Yat-Sen University, Kaohsiung 80424, Taiwan","institution_ids":["https://openalex.org/I142974352"]},{"raw_affiliation_string":"Department of Mechanical and Electro-Mechanical Engineering, National Sun Yat-Sen University, Kaohsiung, Taiwan","institution_ids":["https://openalex.org/I142974352"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":6,"corresponding_author_ids":["https://openalex.org/A5101790872"],"corresponding_institution_ids":["https://openalex.org/I142974352"],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":{"value":0.13854507,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":null,"issue":null,"first_page":"623","last_page":"624"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11517","display_name":"Advanced optical system design","score":0.9995999932289124,"subfield":{"id":"https://openalex.org/subfields/2204","display_name":"Biomedical Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T11517","display_name":"Advanced optical system design","score":0.9995999932289124,"subfield":{"id":"https://openalex.org/subfields/2204","display_name":"Biomedical Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T12309","display_name":"solar cell performance optimization","score":0.9904999732971191,"subfield":{"id":"https://openalex.org/subfields/2208","display_name":"Electrical and Electronic Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T14158","display_name":"Optical Systems and Laser Technology","score":0.9868000149726868,"subfield":{"id":"https://openalex.org/subfields/2208","display_name":"Electrical and Electronic Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/reflector","display_name":"Reflector (photography)","score":0.7746524810791016},{"id":"https://openalex.org/keywords/optics","display_name":"Optics","score":0.7312284111976624},{"id":"https://openalex.org/keywords/irradiance","display_name":"Irradiance","score":0.728926956653595},{"id":"https://openalex.org/keywords/lens","display_name":"Lens (geology)","score":0.7174744606018066},{"id":"https://openalex.org/keywords/light-emitting-diode","display_name":"Light-emitting diode","score":0.6565524935722351},{"id":"https://openalex.org/keywords/ultraviolet","display_name":"Ultraviolet","score":0.5730375647544861},{"id":"https://openalex.org/keywords/materials-science","display_name":"Materials science","score":0.5355550646781921},{"id":"https://openalex.org/keywords/intensity","display_name":"Intensity (physics)","score":0.5061079859733582},{"id":"https://openalex.org/keywords/optoelectronics","display_name":"Optoelectronics","score":0.4802810847759247},{"id":"https://openalex.org/keywords/photolithography","display_name":"Photolithography","score":0.4772517681121826},{"id":"https://openalex.org/keywords/light-intensity","display_name":"Light intensity","score":0.4607264995574951},{"id":"https://openalex.org/keywords/light-source","display_name":"Light source","score":0.32230430841445923},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.2900685966014862}],"concepts":[{"id":"https://openalex.org/C2778415886","wikidata":"https://www.wikidata.org/wiki/Q1823435","display_name":"Reflector (photography)","level":3,"score":0.7746524810791016},{"id":"https://openalex.org/C120665830","wikidata":"https://www.wikidata.org/wiki/Q14620","display_name":"Optics","level":1,"score":0.7312284111976624},{"id":"https://openalex.org/C46423501","wikidata":"https://www.wikidata.org/wiki/Q830654","display_name":"Irradiance","level":2,"score":0.728926956653595},{"id":"https://openalex.org/C15336307","wikidata":"https://www.wikidata.org/wiki/Q1766051","display_name":"Lens (geology)","level":2,"score":0.7174744606018066},{"id":"https://openalex.org/C176666156","wikidata":"https://www.wikidata.org/wiki/Q25504","display_name":"Light-emitting diode","level":2,"score":0.6565524935722351},{"id":"https://openalex.org/C2776798109","wikidata":"https://www.wikidata.org/wiki/Q11391","display_name":"Ultraviolet","level":2,"score":0.5730375647544861},{"id":"https://openalex.org/C192562407","wikidata":"https://www.wikidata.org/wiki/Q228736","display_name":"Materials science","level":0,"score":0.5355550646781921},{"id":"https://openalex.org/C93038891","wikidata":"https://www.wikidata.org/wiki/Q1061524","display_name":"Intensity (physics)","level":2,"score":0.5061079859733582},{"id":"https://openalex.org/C49040817","wikidata":"https://www.wikidata.org/wiki/Q193091","display_name":"Optoelectronics","level":1,"score":0.4802810847759247},{"id":"https://openalex.org/C105487726","wikidata":"https://www.wikidata.org/wiki/Q622938","display_name":"Photolithography","level":2,"score":0.4772517681121826},{"id":"https://openalex.org/C3020368824","wikidata":"https://www.wikidata.org/wiki/Q6546192","display_name":"Light intensity","level":2,"score":0.4607264995574951},{"id":"https://openalex.org/C2982854487","wikidata":"https://www.wikidata.org/wiki/Q9128","display_name":"Light source","level":2,"score":0.32230430841445923},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.2900685966014862}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/nems.2015.7147507","is_oa":false,"landing_page_url":"https://doi.org/10.1109/nems.2015.7147507","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"10th IEEE International Conference on Nano/Micro Engineered and Molecular Systems","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[{"display_name":"Climate action","score":0.5799999833106995,"id":"https://metadata.un.org/sdg/13"}],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":4,"referenced_works":["https://openalex.org/W1973310098","https://openalex.org/W2031306248","https://openalex.org/W2069245151","https://openalex.org/W4246168982"],"related_works":["https://openalex.org/W2147777774","https://openalex.org/W2379171104","https://openalex.org/W2072442315","https://openalex.org/W2175090515","https://openalex.org/W1986953717","https://openalex.org/W4390482314","https://openalex.org/W1802882460","https://openalex.org/W2056447465","https://openalex.org/W171942161","https://openalex.org/W2051850933"],"abstract_inverted_index":{"In":[0],"this":[1,34,175],"study,":[2],"UV-LED":[3,53,180],"(ultraviolet":[4],"light":[5,32,49,181],"emitting":[6],"diode)":[7],"is":[8,72],"developed":[9],"for":[10,54],"photolithography":[11],"industry.":[12],"Since":[13],"the":[14,17,48,59,75,82,102,108,145,149,165,183],"accuracy":[15],"of":[16,19,30,41,52,61,63,81,132,170,177,179],"degree":[18,113],"cross":[20,161],"linking":[21],"and":[22,39,65,105,121,126,141,167,185],"sidewall":[23],"profile":[24],"could":[25],"be":[26,188],"affected":[27],"by":[28,90],"intensity":[29,80,184],"UV":[31],"dosage,":[33],"research":[35],"proposes":[36],"optical":[37,78,93],"design":[38,176],"fabrication":[40],"freeform":[42,83,133,150],"lens":[43,71,84,134,151],"with":[44,85,111,152],"reflector":[45,86,114,153],"coated":[46],"on":[47,58,107],"source":[50],"element":[51],"exposure":[55,172],"systems.":[56],"Based":[57],"law":[60,67],"conservation":[62],"energy":[64],"Snell's":[66],"method,":[68],"a":[69],"free-form":[70],"designed":[73],"in":[74],"study.":[76],"The":[77,97,124],"distribution":[79],"layer":[87,115],"was":[88,154],"determined":[89],"using":[91],"commercial":[92],"simulation":[94,166],"FRED":[95],"software.":[96],"experimental":[98,168],"results":[99,146],"show":[100,147],"that":[101,131,148],"average":[103,159],"irradiance":[104,125],"uniformity":[106,127,186],"target":[109],"plane":[110],"60":[112],"were":[116,128],"8.7mW/cm":[117],"<sup":[118,138],"xmlns:mml=\"http://www.w3.org/1998/Math/MathML\"":[119,139],"xmlns:xlink=\"http://www.w3.org/1999/xlink\">2</sup>":[120,140],"86.9%,":[122],"respectively.":[123,143],"higher":[129],"than":[130],"without":[135],"reflector,":[136],"7.8mW/cm":[137],"87%,":[142],"Therefore,":[144],"demonstrated":[155],"to":[156],"obtain":[157],"97.5%":[158],"normalized":[160],"correlation":[162],"(NCC)":[163],"between":[164],"measurement":[169],"UV-LEDs":[171],"system.":[173],"Through":[174],"reflection":[178],"source,":[182],"can":[187],"enhanced":[189],"significantly.":[190]},"counts_by_year":[],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}
