42cm 3D Fan

Traditional projectors create shading and color in the projected image by moving light through a graphical image that blocks some light. As light passes through the reported interference pattern, holographic projectors produce an image through refraction. The image produced by light shining through a flat interference pattern (recorded on a holographic plate as shown above) has three-dimensional qualities but is still flat. A rotating mirror device can be used to project an actual 3D image.

The technique is based on a high-speed video projector aimed at a rotating platform with a mirror attached, a holographic diffuser, and hardware for decoding digital images, and was first created by researchers at the University of Southern California's Institute for Creative Technologies. 4 Since the mirror spins quickly, it mirrors the picture in all directions, allowing viewers to see it in three dimensions from any perspective.

The base model of 3D hologram fan is 42cm HF-42. It is different with other models. It has only two leaves, and the size is 42cm only. It can be jointed into a fan wall and shapes.

The fan spins at 750 revolutions per minute. We determined by taking pictures of the fan with various shutter speeds to determine how long it takes for the fan to turn one-fourth of a revolution, which is sufficient to generate a complete image. We discovered that one-fourth of a fan revolution takes 20 milliseconds, implying that a full circle takes 80 milliseconds. This means that the fan will potentially replay the video at 50 frames per second. However, we found only 15 frames per second when we counted the authentic frames per second. This was accomplished by capturing the show and playing back a video at 25 frames per second with numbers ranging from zero to nine in each frame.

There is a void for nonintrusive AR effects in a time when augmented reality apps have grown in popularity. This can be accomplished without using any gadgets on the part of the observer using a holographic fan. These holographic fans are helpful in public places such as shopping malls, airports, fares, and other public buildings for advertising or advisory purposes. They may be used to draw attention to items, display alerts, or provide instructions or safety details.