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How does waveguides work in Hololens? How does waveguides to show a 3D model in hololens?
This picture has showed the display component of Hololens. The waveguides part can be found in here, 
When the Hololens is working, there is flicker above the waveguides part. Is this the projector to project Holograms and applications to the waveguides?
Another confusing thing is that there is an triangle area which look like waveguides. This part is located bellow "projector". What's the function of this part?
An other problems is related to waveguides display. How does waveguides to show a 3D model in hololens? Is it used catadioptric(reflection and refraction)? Does the projector transmit signal to the outside lens first and reflect it back?
The final question is about the resolution. I've known that the color displayed by R-G-B-G. Does this transmit just like a sequence? If it does, does it have 2.3 million light points for each color?
If anybody could give me some guidance, I'll really appreciate.
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wintermoot
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This 4 part series presented to film industry folks on the underlying light field tech provides a good background:
https://www.youtube.com/watch?v=Raw-VVmaXbgIn Hololens, the waveguides work by creating a lightfield, but via 'end on' projection zigzagging across the 3 R/G/B waveguides. The two circles above the nose bridge provide the led light source that is channeled into them. Hold the hololens a short distance from your face and focus on some content through the guides. Then slowly move it farther away. You'll be able to perceive the lightfield when the guides are about a foot from your face or so.
Here's another SIGGRAPH short showing nvidia's near-eye light field displays:
https://www.youtube.com/watch?v=uwCwtBxZM7gThis article provides a decent review of how the TruLife Optics part works: http://www.imaginativeuniversal.com/blog/post/2015/10/17/how-hololens-displays-work.aspx
UX Designer @ Anki
https://www.twitter.com/wintermoot1
Answers
This 4 part series presented to film industry folks on the underlying light field tech provides a good background:
https://www.youtube.com/watch?v=Raw-VVmaXbg
In Hololens, the waveguides work by creating a lightfield, but via 'end on' projection zigzagging across the 3 R/G/B waveguides. The two circles above the nose bridge provide the led light source that is channeled into them. Hold the hololens a short distance from your face and focus on some content through the guides. Then slowly move it farther away. You'll be able to perceive the lightfield when the guides are about a foot from your face or so.
Here's another SIGGRAPH short showing nvidia's near-eye light field displays:
https://www.youtube.com/watch?v=uwCwtBxZM7g
This article provides a decent review of how the TruLife Optics part works: http://www.imaginativeuniversal.com/blog/post/2015/10/17/how-hololens-displays-work.aspx
UX Designer @ Anki
https://www.twitter.com/wintermoot
I heard from a reliable source that the HPU in the Hololens contains fairy dust, moon rocks and unicorn tears to make a lot of this magic just work.
@wintermoot This article is so impressive that I'm failed to escape from there.
I totally understand and agree there are 3 layers of waveguide lens. I just doubt that why Hololens talks about color separation using R-G-B-G not R-G-B? I mean where does the last green color come from? double frequency?
There still is a problem I do not understand: there is an triangle area which look like waveguides. This part is located bellow "projector". What's the function of this part?
The extra green channel is for increased luminance. https://en.wikipedia.org/wiki/Bayer_filter
We don't have anything to share about fairy dust, moon rocks and unicorn tears at this time.
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