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Spinning LED figure: Resolution of projecting a 3D image
KTH, School of Industrial Engineering and Management (ITM), Machine Design (Dept.).
KTH, School of Industrial Engineering and Management (ITM), Machine Design (Dept.).
2015 (English)Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesisAlternative title
Snurrande LED-figur (Swedish)
Abstract [en]

The thesis is a study about pixel density of a 3D projection, projected by a spinning ring with LED attached to its surface and which parameters impact the pixel density. A theory of when and how the 3D projection occurs was developed. The theory is based on the works of Max Wertheimer in 1912 on the subject of ϕ-movement. A demonstrator is built to prove that the concept works in reality. The demonstrator and the theory is then evaluated and the results showed that to to get the highest pixel density, the number of LED configurations should be increased and the RPM of the ring decreased. The number of LED:s is a scaler factor to increase the pixel density but compromises the systems stability margins.

Abstract [sv]

Rapporten behandlar en studie av pixeltätheten hos en tredimensionell projektion och vilka parametrar som påverkar pixeltätheten. Projektionen projiceras av en snurrande ring med lysdioder fästa på ytan. En teori om när och hur den tredimensionella projektionen uppstår utvecklades. Teorin är baserad på arbete gjort av Max Wertheimer år 1912 på ämnet ϕ-rörelse. En demonstrator byggdes för att bevisa att konceptet fungerar i verkligheten. Demonstratorn och teorin utvärderades och resultaten visade att för att få den största pixeltätheten, ska varvtalet minska och antal LED konfigurationer ska öka. Antalet LED:ar är en skalär faktor som ökar pixeltätheten men minskar systemets stabilitetsmarginaler.

Place, publisher, year, edition, pages
, MMKB 2015:07 MDAB 060
National Category
Mechanical Engineering
URN: urn:nbn:se:kth:diva-184489OAI: diva2:916182
Available from: 2016-04-07 Created: 2016-04-01 Last updated: 2016-04-07Bibliographically approved

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