What is the magic LED "fan"? Fan advertising machine LED naked eye 3D holographic projection suspended video playback animation show cool rotation
Fan advertising machine LED naked eye 3D holographic projection suspended video playback animation show cool rotation
Recently, a foreign friend displayed a cool LED "fan" on Instagram, this magic "fan" can show 3D stereoscopic and constantly changing graphics.
This has a magical effect of the "fan" aroused strong interest from the majority of users, after all, this "fan" brought back from China, we ourselves have never seen. Many people have asked, where you can buy.
www.likeyli.com Mr likey could help you .
In fact, a closer look blogger's post, you can find that this so-called "fan" is just a vivid name, in fact, it is a "rotating LED bar," manufacturers call it "naked eye 3D holographic display machine".
Its true look is long. And the fan's look is still far worse.
This seemingly high-end technology actually takes advantage of a common principle, Persistence of Vision (POV).
The human eye in the observation of scenery, the optical signal into the brain, to go through a short period of time, the role of light after the end, the visual image does not immediately disappear, this residual vision called "after the image" of the visual phenomenon It is called "Persistence of vision."
Research shows that visual persistence takes about 1 / 24th of a second, which is why traditionally films were shot and projected at 24 frames per second. However, the retention time is not a definitive value, which is related to the individual differences of the observer and the brightness and size of the observed object.
This naked eye 3D holographic display is actually a POV LED display.
POV LED display consists of a single column (in theory, can also be more columns) LED components, generated by rotating the lattice, the use of control dot matrix rotating screen LED off combined with dynamic scanning and visual persistence phenomenon to display text, images, animation and other information .
POV LED can be spherical, circular, cylindrical display, with the passage of time, is expected to be applied in more areas.
Recently, a foreign friend displayed a cool LED "fan" on Instagram, this magic "fan" can show 3D stereoscopic and constantly changing graphics.
This has a magical effect of the "fan" aroused strong interest from the majority of users, after all, this "fan" brought back from China, we ourselves have never seen. Many people have asked, where you can buy.
www.likeyli.com Mr likey could help you .
Its true look is long. And the fan's look is still far worse.
This seemingly high-end technology actually takes advantage of a common principle, Persistence of Vision (POV).
The human eye in the observation of scenery, the optical signal into the brain, to go through a short period of time, the role of light after the end, the visual image does not immediately disappear, this residual vision called "after the image" of the visual phenomenon It is called "Persistence of vision."
Research shows that visual persistence takes about 1 / 24th of a second, which is why traditionally films were shot and projected at 24 frames per second. However, the retention time is not a definitive value, which is related to the individual differences of the observer and the brightness and size of the observed object.
This naked eye 3D holographic display is actually a POV LED display.
POV LED display consists of a single column (in theory, can also be more columns) LED components, generated by rotating the lattice, the use of control dot matrix rotating screen LED off combined with dynamic scanning and visual persistence phenomenon to display text, images, animation and other information .
POV LED can be spherical, circular, cylindrical display, with the passage of time, is expected to be applied in more areas.
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