![]() However, as we measured the actual frames per second, we discovered it was actually only doing 15 frames per second. This would theoretically mean that the fan could playback video at 50 frames per second. We discovered that it takes 20 milliseconds for the fan to spin one-fourth of a revolution, therefore full revolution is achieved in 80 milliseconds. The fan spins at 750 revolutions per minute, which we measured by taking pictures of the fan with differing shutter speeds to find out the time it takes for the fan to spin one-fourth of a revolution, which is enough to produce a full image. Using the same size LEDs as in our pilot device, the fan would have a diameter of 178 centimeters. In comparison, the targeted 1080p resolution has an area of 2.1 million pixels, if we multiply the 16:9 aspect ratio 1920 pixels times 1080 pixels.Īs the produced circle would have an area of 2.1 million pixels, we can calculate that the diameter of the circle would be 1635 pixels and there for each arm should have 818 LEDs. This setup works as a 56 centimeters or 512 pixels wide circular display, with an area of the produced circle being 0.2 million pixels. The holographic fan used as a pilot device in this project has four fan blades, with 256 LEDs attached to each blade. The aim of the study was to find out parameters needed to achieve 1080 pixel resolution. The product was purchased from a Chinese vendor, Shenzhen Baotianxiang Technology Company, which is located in the city of Shenzhen in mainland China. So a specimen of the current holographic fan technology was acquired. The case study focused on getting familiar with how the current technology works and what modifications would be needed to the design in order to meet client’s desired specifications. While the exchange students focused on doing the 3D modeling, the two staff members assigned to this project focused on the research part. Their focus was in creating 3D models and other graphical aspects for demonstrative and illustrative purposes in this project. Project team was an international setup, as there were also two exchange students involved in this project. Weekly project meetings were held through Skype for Business. is the owner and leader of the project with their CEO Tibor Gencel as Project Owner and Manager. The project was made in close collaboration with Häme University of Applied Sciences from Finland. ![]() They are focused on game development as well as on new emerging technologies, like holographic projection. is a US-based company with headquarters in Palo Alto, Silicon Valley, California, and a site office in Malmö, Sweden. This project was a research and development project for a client company G2xBit Incorporated and the target was to find out what is needed to achieve high definition holographic images using the given technology, in which a spinning fan, using LEDs attached to the fans blades, produces the holographic images. This will trick the observer’s brain to see the image as a whole and perceive the displayed object floating in the air as the observer can see through the fast spinning display. Holographic fans are types of displays that produce a holographic-like image seemingly floating in the air, by having strips of RGB LEDs attached to the blades of the fan and a control-unit lighting up the pixels as the fan turns around, to produce the full picture. The fans are mainly intended for use in advertisement and marketing in shopping malls, airports or other public areas. The fast spinning fan becomes nearly invisible to the naked eye and the projected object thus gets a see-through background. Holographic fan produces an illusion of 3D objects floating in the air. ![]()
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