"The system is involving two main aspects. One is computation, which receives 3D data sets and computes the hologram. And then after the computation of the hologram, the system has an electro-optical part that actually propagates this light into space and reconstructs the image in free air, allowing the user to go and interact with the image."
I think there are two parts to this. I can't think how there can be any 'interference effect', occurring out in the free space / air, as the film implies. There must be a basically 'conventional' hologram, created somewhere at the back of the display and then a clever bit of optics, producing a real image in the position shown in the demo. Very clever, of course, and an excellent tool but it doesn't have to be what is sort of being implied. I suspect that the viewing angle would be fairly narrow, in the same way that the cheap 'floating pig' toy works. I guess there must be a large concave mirror in there. The advertising movie makes it look very Star Wars - as you'd expect. They used the word "digital" a lot - as if there would be any other way of doing it!3301 said:Recently i stumbled upon this video and got me confused. Any one seen this before? Better yet.. can someone explain how can this hologram work?
3301 said:Recently i stumbled upon this video and got me confused. Any one seen this before? Better yet.. can someone explain how can this hologram work?
sophiecentaur said:<snip>
The clever bit has to be creating the hologram in the first place. Could be using ultrasound to create a surface wave pattern on a crystalline surface?
A hologram is a three-dimensional image that is created using light diffraction. It is a photographic recording of a light field, which displays the image in a way that appears to be three-dimensional when viewed under proper lighting conditions.
A hologram is created by using lasers to record an object from different angles and then projecting these images onto a photosensitive material. The resulting interference pattern creates a hologram that recreates the original object in three dimensions.
A hologram appears to have depth because it is created using light diffraction, which allows the image to be viewed from different angles. This gives the illusion of depth and makes the image appear to be three-dimensional.
No, a hologram cannot be touched or interacted with as it is simply a visual representation of an object. However, advancements in technology have allowed for interactive holograms to be created, but they are not yet widely available.
Holograms have a wide range of practical uses, including security features on credit cards and IDs, entertainment in the form of holographic performances, and medical imaging for more accurate diagnoses. They are also being researched for use in virtual and augmented reality applications.