Microsoft claims that their HoloLens data glasses can produce holograms.

HoloLens lets you create holograms, objects made of light and sound that appear in the world around you, just as if they were real objects. [...] The holograms that HoloLens renders appear in the holographic frame directly in front of the user's eyes.

As seen in this video, it requires the use of augmented-reality goggles.

Merriam-Webster defines a hologram as

a three-dimensional image reproduced from a pattern of interference produced by a split coherent beam of radiation (such as a laser).

I suspect that Microsoft uses the term wrongly and the technology is simply a semi transparent screen in the glasses, or a laser projection into the eye, or some other "conventional" technology. Is that so?

Edit: In response to the close vote let me clarify that I'm asking about the specific, classic technology called holography which creates (true, classic) holograms. I'm not asking about other technologies which create projections of objects, even if they appear to be immersed in real spaces to an observer. I find this is as objective a question as it gets with near zero room for opinion (after we have solved the potential ambiguity of the word hologram).

  • 2
    The fourth sentence in your first link: "The holograms that HoloLens renders appear in the holographic frame directly in front of the user's eyes". So yes, it's your first guess: the hologram is displayed on a screen in the HoloLens.
    – Giter
    Aug 7, 2019 at 21:58
  • 5
    @PeterA.Schneider: True holograms literally are a simple projection on a semi transparent screen appearing to be 3-dimensional. They are just images that are displayed on a 2d screen, but can show different perspectives when you view the screen from different angles.
    – Giter
    Aug 8, 2019 at 0:19
  • 4
    This is a pointless quibble about prescriptivist definitions. Microsoft explicitly explain the way they use term in the first page. They clearly use a different definition to Wikipedia, which requires it to be visible with a naked eye. The understanding of the word hologram has shifted since the 70s, such that the Pepper's Ghost effect of Tupac was widely called a hologram.
    – Oddthinking
    Aug 8, 2019 at 1:01
  • 2
    The question boils down to whether the use of the word by Microsoft is appropriate, up to a subjective standard. What they mean by it is clear, so we are left with a question which is not appropriate for the site.
    – Sklivvz
    Aug 8, 2019 at 10:29
  • 3
    Sure, I quoted the key part of the Wikipedia definition in an edit to protect against link rot and to make it easier to understand your point, but that definition was linked by you as "true holography". It seems you have changed which definition you prefer, which emphasizes that this is just a subjective definitions issue, not a question that needs to be answered with emperical evidence.
    – Oddthinking
    Aug 9, 2019 at 12:18


Browse other questions tagged .