The persistence of vision (POV) LED globe
No Thumbnail Available
Date
2015
Journal Title
Journal ISSN
Volume Title
Publisher
Uva Wellassa University of Sri Lanka
Abstract
Every day we see a new display technology emerging around us. One of most important technology
development is Persistence of Vision or POV. Persistence of Vision is the ability of the eye to retain
the impression of an image for a short time after the image has disappeared. This ability can be used
to create an illusion of images/characters floating in the air, by rapidly flashing a column of light
emitting diodes (LEDs) while moving the display in air. The developed POV globe is a half ring
consists of 32 LEDs that is rotated axially at high-speed (300 rpm). Due to this high-speed and the
phenomenon of persistence of vision (POV), our brains interprets this moving half ring of light as a
solid, spherical surface. When each of the LEDs is illuminated in proper frequency it appears as a 3
dimensional globe.
Description
Keywords
Science and Technology, Technology, Health Science, Technology Development