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> This chip powers its augmented reality headset that works by shooting light directly onto your eye, rather than sticking a screen in front of it. I'm curious

> This chip powers its augmented reality headset that works by shooting light directly onto your eye, rather than sticking a screen in front of it. I'm curious to know exactly what they mean by shooting light directly into your eye. Wouldn't you see the source? That is basically what a screen does, though less direct. It makes light, some of which enters your eyes. You see more light when you look at the source, the screen.

russdill 11y ago
Every single display works by projecting photons into the eye.
- Retric 11y ago
  If that where the case only one person could see your monitor at a time. Instead monitors send light across a vary wide viewing angle.
  - efnx 11y ago
    Light is made of photons. Every single display shoots photons into your eyes. Traditional displays send photons into everybody's eyes.
    - MichaelGG 11y ago
      Keyword is directly, to contrast it with, say, a page of [e]paper that reflects light into your eyes.
      - seanp2k2 11y ago
        I'm thinking "looking into a tiny projector focused on your retina", but I'm having a hard time imagining what what would be like, since I've literally never experienced anything like that. Looking into a normal projector wouldn't be comparable really, as the focus for those is a field much larger than your retina. You'd need something with a lens that would focus it down to dime-size or smaller to get a similar effect, and I doubt you'd want to do this with anything more powerful than a pocket projector. Might be a fun weekend project to hack a new lens system into one and see what it can do if the internals are even hackable enough to make something like that possible (I'm thinking focal lengths and lens types).
bentpins 11y ago
I think they are talking about virtual retinal displays? Avengant Glyph is planning to use them in their kickstarted VR headset. http://en.wikipedia.org/wiki/Virtual_retinal_display http://en.wikipedia.org/wiki/Virtual_retinal_display
DaveSapien 11y ago
This is the tech they are using: https://research.nvidia.com/publication/near-eye-light-field-displays-0 https://research.nvidia.com/publication/near-eye-light-field...
- tmikaeld 11y ago
  No it's absolutely NOT the tech they are using. They are using this tech: https://www.youtube.com/watch?v=1UF9fJtZHAY https://www.youtube.com/watch?v=1UF9fJtZHAY It's like a reversed type of piezo-endoscope that projects the image on the eye itself. The patent can be seen here: https://encrypted.google.com/patents/WO2014113506A1?cl=en https://encrypted.google.com/patents/WO2014113506A1?cl=en The full term for this tech is: scanning fiber display with piezoelectric actuator
  - DaveSapien 11y ago
    Very interesting, thank you. Seems I was wrong in my assumption, though I'm interested in why they keep using the term 'Lightfield'. This is a better patent claim page for my understanding on how the final product will work. https://www.google.com/patents/WO2013077895A1?cl=en&dq=inassignee:%22Magic+Leap,+Inc.%22&hl=en&sa=X&ei=BKFuVfu1FoP68QWi44HABQ&ved=0CCUQ6AEwAQ https://www.google.com/patents/WO2013077895A1?cl=en&dq=inass...
  - IshKebab 11y ago
    Ah great, I wonder why so many news articles are so "How does it work?! Nobody knowws... ooo..." when the details are all there. Btw if nobody wants to read it, the way the scanning fibre endoscope works is that the fibre acts as a very fast one pixel camera (send down R, G and B light and record the reflection magnitude). To build an image the tip is vibrated in a circular pattern of varying diameter using a piezo crystal. The display version would modulate the strength of the R, G and B lights to transmit an image.
    - tmikaeld 11y ago
      I've been following this tech like sherlock on crack, it's just that exciting! The idea of vibrating fibre is just so amazing that i really do think that they will pull this off, i'm just curious as to how large the controllbox will be and if they can manage to shrink it to glasses sizes.

russdill 11y ago

Every single display works by projecting photons into the eye.

Retric 11y ago
If that where the case only one person could see your monitor at a time. Instead monitors send light across a vary wide viewing angle.
- efnx 11y ago
  Light is made of photons. Every single display shoots photons into your eyes. Traditional displays send photons into everybody's eyes.
  - MichaelGG 11y ago
    Keyword is directly, to contrast it with, say, a page of [e]paper that reflects light into your eyes.
    - seanp2k2 11y ago
      I'm thinking "looking into a tiny projector focused on your retina", but I'm having a hard time imagining what what would be like, since I've literally never experienced anything like that. Looking into a normal projector wouldn't be comparable really, as the focus for those is a field much larger than your retina. You'd need something with a lens that would focus it down to dime-size or smaller to get a similar effect, and I doubt you'd want to do this with anything more powerful than a pocket projector. Might be a fun weekend project to hack a new lens system into one and see what it can do if the internals are even hackable enough to make something like that possible (I'm thinking focal lengths and lens types).

bentpins 11y ago

I think they are talking about virtual retinal displays? Avengant Glyph is planning to use them in their kickstarted VR headset. http://en.wikipedia.org/wiki/Virtual_retinal_display http://en.wikipedia.org/wiki/Virtual_retinal_display

DaveSapien 11y ago

This is the tech they are using: https://research.nvidia.com/publication/near-eye-light-field-displays-0 https://research.nvidia.com/publication/near-eye-light-field...

tmikaeld 11y ago
No it's absolutely NOT the tech they are using. They are using this tech: https://www.youtube.com/watch?v=1UF9fJtZHAY https://www.youtube.com/watch?v=1UF9fJtZHAY It's like a reversed type of piezo-endoscope that projects the image on the eye itself. The patent can be seen here: https://encrypted.google.com/patents/WO2014113506A1?cl=en https://encrypted.google.com/patents/WO2014113506A1?cl=en The full term for this tech is: scanning fiber display with piezoelectric actuator
- DaveSapien 11y ago
  Very interesting, thank you. Seems I was wrong in my assumption, though I'm interested in why they keep using the term 'Lightfield'. This is a better patent claim page for my understanding on how the final product will work. https://www.google.com/patents/WO2013077895A1?cl=en&dq=inassignee:%22Magic+Leap,+Inc.%22&hl=en&sa=X&ei=BKFuVfu1FoP68QWi44HABQ&ved=0CCUQ6AEwAQ https://www.google.com/patents/WO2013077895A1?cl=en&dq=inass...
- IshKebab 11y ago
  Ah great, I wonder why so many news articles are so "How does it work?! Nobody knowws... ooo..." when the details are all there. Btw if nobody wants to read it, the way the scanning fibre endoscope works is that the fibre acts as a very fast one pixel camera (send down R, G and B light and record the reflection magnitude). To build an image the tip is vibrated in a circular pattern of varying diameter using a piezo crystal. The display version would modulate the strength of the R, G and B lights to transmit an image.
  - tmikaeld 11y ago
    I've been following this tech like sherlock on crack, it's just that exciting! The idea of vibrating fibre is just so amazing that i really do think that they will pull this off, i'm just curious as to how large the controllbox will be and if they can manage to shrink it to glasses sizes.