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Utveckling av actionkamera accessoar med integrerat ND filter och vattenavstötande egenskaper
KTH, School of Industrial Engineering and Management (ITM).
2017 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesisAlternative title
Development of Action Camera Accessory With Integrated ND Filter and Water Repellant Functionality (English)
Abstract [en]

Action cameras is a recently emerged sub-segment of cameras that focuses on videography indemanding environments. Typical use cases include various types of sport and drone footage.Two factors that frequently affect the image quality of these cameras negatively are excessively strong sunlight, and water droplets beading in front of the lens. In this work the question of whether or not it is possible to design an accessory that solves these problems is investigated. The technology for mitigating excessive light was provided at the outset of the project, leaving the question of integration open. The water repellant functionality on the other hand required investigation of relevant theory, as well as evaluation of applicability in the context of current work. Electrowetting on dielectric (EWOD) was determined to be the most promising approach for removing droplets. EWOD was investigated by looking at relevant research, as well as creating a test sample. The sample proved to be inadequate for testing the phenomena, presumably because of lack in manufacturing precision due to resource constraints. Despite this, the promising results shown in previous research were deemed sufficient for choosing thetechnology for integration into the final product design. Parameters that need optimization for successful integration of EWOD in portable consumer electronics have been highlighted, and recommendations for future research given. The accessory presented in this work shows that it is indeed possible to create a device that solves the stated problem, while at the same timeappealing to relevant customer segments.

Abstract [sv]

Actionkameror är ett nyligen etablerat under-segment av videokameror som fokuserar påfilmning i krävande miljöer. Typiska användningsområden inkluderar filmning av diverse sportevenemang, samt drönar-filmning. Två vanliga orsaker till låg bildkvalité i dessa typer avkameror är starkt solljus samt vattendroppar som fastnar framför linsen. Detta arbete undersöker vare sig det går att designa ett actionkamera tillbehör som löser dessa problem. Teknologi för att kontrollera ljusinsläpp var given vid projektets start, medan tillvägagångssättet för dess integration var öppen. För den vattenavvisande funktionaliteten krävdes dock undersökning av relevant tidigare forskning, samt utvärdering av dess applicerbarhet i nuvarande arbete. Undersökning visade på Electrowetting on dielectric (EWOD) som den mest lovande tekniken för att ta bort vattendroppar. EWOD var utvärderat genom sammanställning av relevanta tidigare forskningsarbeten, samt skapande av en test enhet. Testet kunde slutligen inte återskapa EWOD fenomenet, med stor sannolikhet på grund av för låg noggrannhet i använda tillverkningsmetoder. Trots detta var de lovande egenskaper som tidigare forskning indikerade, tillräckligt för att välja att implementera tekniken i den slutliga designen. Parametrar som kräver optimering för lyckad integrering i portabel konsumentelektronik har understrukits, och rekommendationer till framtida forskning givits. Den slutliga designen presenterad i detta arbete visar på att det är möjligt att skapa ett skapa ett tillbehör som löser de angivna problemen med en design som är attraktiv för relevanta kundsegment.

Place, publisher, year, edition, pages
2017.
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:kth:diva-217838OAI: oai:DiVA.org:kth-217838DiVA, id: diva2:1158053
Supervisors
Examiners
Available from: 2017-11-17 Created: 2017-11-17 Last updated: 2017-11-17Bibliographically approved

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