3D Holographic Fan

This paper presents the design and development of a 3D holographic fan system with enhanced features such as battery backup and an adjustable mounting structure. The system uses high-speed rotating LED blades to create floating threedimensional visual effects based on the persistence of vision (POV) principle. It is powered by a 12V battery that charges during normal power supply conditions and automatically provides backup during power failure, ensuring continuous and reliable operation [1]. An adjustable stand is incorporated to improve flexibility in positioning and viewing angle. The system is controlled using a mobile-based application, allowing users to wirelessly manage images and videos. Compared to conventional systems, the proposed model offers better portability, usability, and reliability, making it suitable for applications such as digital advertising, exhibitions, and educational demonstrations.