Comparative Evaluation of the Encapsulating Lens on the Depreciation of the Lumen of High Power Pcleds in Tropical Conditions

Comparative Evaluation of the Encapsulating Lens on the Depreciation of the Lumen of High Power Pcleds in Tropical Conditions | Research Square window.SnipcartSettings = { analytics: { enabled: false } }; (function() { var accessVector = localStorage.getItem('access_vector') || ''; window.dataLayer = window.dataLayer || []; if (accessVector) { window.dataLayer.push({ user: { profile: { profileInfo: { snid: accessVector } } } }); } })(); (function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src='https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);})(window,document,'script','dataLayer','GTM-K279D39R'); Browse Preprints In Review Journals COVID-19 Preprints AJE Video Bytes Research Tools Research Promotion AJE Professional Editing AJE Rubriq About Preprint Platform In Review Editorial Policies Our Team Advisory Board Help Center Sign In Submit a Preprint Cite Share Download PDF Research Article Comparative Evaluation of the Encapsulating Lens on the Depreciation of the Lumen of High Power Pcleds in Tropical Conditions ARINDAM CHAKRABORTY, Swarnabha Datta, Chiradeep Mukherjee, Rajiv Ganguly, and 1 more This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-3969698/v1 This work is licensed under a CC BY 4.0 License Status: Posted Version 1 posted You are reading this latest preprint version Abstract With the current technological growth, the demand for lighting has increased in indoor as well as outdoor application. To meet such huge expectations, Light emitting diodes (LEDs) are inclining towards energy-efficient illumination. However, the useful life of commercially available LEDs is an important parameter. Gradually after passage of time, depreciation in lumen output of LEDs is observed. There are several factors responsible for such degradation in output. One of the reasons is due to bulging of encapsulating lens used on high power pcLEDs. This research discusses the role of encapsulating wafer on LEDs discussing the useful lifetime characteristics of high power pcLEDs. This is an emerging field that combines physics, materials science, device technology and industry. We discuss the effect of lens through systematic observations and calculations are made from the lumen depreciation characteristic graph. High Power-pcLED power consumption pcLED encapsulating lens LED reliability useful life energy efficiency Full Text Additional Declarations No competing interests reported. Cite Share Download PDF Status: Posted Version 1 posted You are reading this latest preprint version Research Square lets you share your work early, gain feedback from the community, and start making changes to your manuscript prior to peer review in a journal. As a division of Research Square Company, we’re committed to making research communication faster, fairer, and more useful. We do this by developing innovative software and high quality services for the global research community. Our growing team is made up of researchers and industry professionals working together to solve the most critical problems facing scientific publishing. Also discoverable on Platform About Our Team In Review Editorial Policies Advisory Board Help Center Resources Author Services Accessibility API Access RSS feed Manage Cookie Preferences © Research Square 2026 | ISSN 2693-5015 (online) Privacy Policy Terms of Service Do Not Sell My Personal Information {"props":{"pageProps":{"initialData":{"identity":"rs-3969698","acceptedTermsAndConditions":true,"allowDirectSubmit":true,"archivedVersions":[],"articleType":"Research Article","associatedPublications":[],"authors":[{"id":274033914,"identity":"5d1ff8bf-8be5-4f6a-a280-003d91a08e02","order_by":0,"name":"ARINDAM CHAKRABORTY","email":"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAZAAAAAyAQMAAABI0h/eAAAABlBMVEX///8AAABVwtN+AAAACXBIWXMAAA7EAAAOxAGVKw4bAAAA7ElEQVRIiWNgGAWjYBACNvnjz6Q/GBy245c/fPAzj0FdAgP74WMS+LTwSyS2S0tUPE+WnMGWLD2nQiKBgSct3QKfFskZie2zec78Z9wwg8eM+c8ZoBYJHfMf+LQY3ABq4W27zWwg3fONObcNpIXH7AZeLfcPtt0GauEzlzm7jVgtjGAtzJYNudusidJif7OxrZr332HGDQdynknz/oNowRtiBjcOtlnztgG13Mhhk+YF26JDSEtim7Vk2+FkyZ5jxmAtbDxpaQS0pD+T/tgGjEr25oefedvq6vkJRSUmYCNN+SgYBaNgFIwCbAAAVHBW06peCJsAAAAASUVORK5CYII=","orcid":"","institution":"Institute of Engineering and Management","correspondingAuthor":true,"prefix":"","firstName":"ARINDAM","middleName":"","lastName":"CHAKRABORTY","suffix":""},{"id":274033915,"identity":"716df7d4-eaa8-4d53-ba13-dc5c15ea2b13","order_by":1,"name":"Swarnabha Datta","email":"","orcid":"","institution":"Indian Army","correspondingAuthor":false,"prefix":"","firstName":"Swarnabha","middleName":"","lastName":"Datta","suffix":""},{"id":274033916,"identity":"4b032a82-6049-49b5-b7a2-876c7265ad39","order_by":2,"name":"Chiradeep Mukherjee","email":"","orcid":"","institution":"University of Engineering \u0026 Management","correspondingAuthor":false,"prefix":"","firstName":"Chiradeep","middleName":"","lastName":"Mukherjee","suffix":""},{"id":274033917,"identity":"8ae38978-07e8-44ec-bfba-3956e4ae8e2a","order_by":3,"name":"Rajiv Ganguly","email":"","orcid":"","institution":"Institute of Engineering and Management","correspondingAuthor":false,"prefix":"","firstName":"Rajiv","middleName":"","lastName":"Ganguly","suffix":""},{"id":274033918,"identity":"7dffbe0c-f4d8-4931-b435-d0149986dc83","order_by":4,"name":"Monojit Mitra","email":"","orcid":"","institution":"Indian Institute of Engineering Science and Technology, Shibpur","correspondingAuthor":false,"prefix":"","firstName":"Monojit","middleName":"","lastName":"Mitra","suffix":""}],"badges":[],"createdAt":"2024-02-19 10:14:16","currentVersionCode":1,"declarations":"","doi":"10.21203/rs.3.rs-3969698/v1","doiUrl":"https://doi.org/10.21203/rs.3.rs-3969698/v1","draftVersion":[],"editorialEvents":[],"editorialNote":"","failedWorkflow":false,"files":[{"id":69262287,"identity":"ba9f5b58-b4a4-4a6c-988d-a4792254c773","added_by":"auto","created_at":"2024-11-18 13:54:08","extension":"pdf","order_by":1,"title":"","display":"","copyAsset":false,"role":"manuscript-pdf","size":579549,"visible":true,"origin":"","legend":"","description":"","filename":"SpringerNatureCOMPARATIVEEVALUATIONOFTHEENCAPSULATINGLENSONTHEDEPRECIATIONOFTHELUMENOFHIGHPOWERPCLEDSINTROPICALCONDITIONS.pdf","url":"https://assets-eu.researchsquare.com/files/rs-3969698/v1_covered_8ba686b4-27f6-4319-8438-2fd1c869f53d.pdf"}],"financialInterests":"No competing interests reported.","formattedTitle":"\u003cp\u003eComparative Evaluation of the Encapsulating Lens on the Depreciation of the Lumen of High Power Pcleds in Tropical Conditions\u003c/p\u003e","fulltext":[],"fulltextSource":"","fullText":"","funders":[],"hasAdminPriorityOnWorkflow":false,"hasManuscriptDocX":false,"hasOptedInToPreprint":true,"hasPassedJournalQc":"","hasAnyPriority":false,"hideJournal":true,"highlight":"","institution":"","isAcceptedByJournal":false,"isAuthorSuppliedPdf":true,"isDeskRejected":"","isHiddenFromSearch":false,"isInQc":false,"isInWorkflow":false,"isPdf":true,"isPdfUpToDate":true,"isWithdrawnOrRetracted":false,"journal":{"display":true,"email":"[email protected]","identity":"researchsquare","isNatureJournal":false,"hasQc":true,"allowDirectSubmit":true,"externalIdentity":"","sideBox":"","snPcode":"","submissionUrl":"/submission","title":"Research Square","twitterHandle":"researchsquare","acdcEnabled":true,"dfaEnabled":false,"editorialSystem":"","reportingPortfolio":"","inReviewEnabled":false,"inReviewRevisionsEnabled":true},"keywords":"High Power-pcLED, power consumption, pcLED encapsulating lens, LED reliability, useful life, energy efficiency","lastPublishedDoi":"10.21203/rs.3.rs-3969698/v1","lastPublishedDoiUrl":"https://doi.org/10.21203/rs.3.rs-3969698/v1","license":{"name":"CC BY 4.0","url":"https://creativecommons.org/licenses/by/4.0/"},"manuscriptAbstract":"With the current technological growth, the demand for lighting has increased in indoor as well as outdoor application. 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