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SvennoJ on 06 December 2016
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Imaginedvl said:
SvennoJ said:

Awesome, you have hololens.

I'm wondering can it make the holograms really solid like in VR, or is there always some translucency going on? I guess it depends on the room lighting?
Is it possible to effectively darken areas (like darkening sunglasses) or is it only additive, overpowering background light?
Can it simply act as VR if you put a blindfold over it? :)

Style will eventually be normal glasses, long way off. Then vr contacts!
Or perhaps retinal projectors.

It depends on 2 things actually :) I really played a lot and tried different things with it.

- Room lightning definitely but it is really not that much a problem (of course if you are outside in a very sunny day it may but it will still work)
- The most impacting thing is the actual hologram. Holograms are basically ray of lights with the hololens being projected into the 2 small screens; so if the holograms is too dark (using darker textures) then less light are projected and if you are really projecting something black, Hololens is basically not projecting anything at all :)

I would say that for very bright holograms, it can actually appears almost solid and I can definitly hide the "real" objects behind it (I 'm trying it at the same time than typing this :) Actually, I can see the object behind if I really focus but the hologram is really almost appearing solid). But if I go darker (close to blak) then it will virtualy be transparent.

Overall this is really not an issue tho because you just design your application in consequence and so far I did not really have any problem with that.

Interesting, so it's pretty much additive light for now. I guess adding an extra layer that can block light might work, so you can project a video screen in the environment. Although I don't know how the optics work. It's probably not as simple as adding an extra lcd layer to darken incoming light.

Looks like it's a projection system
http://www.theverge.com/2016/4/6/11376442/microsoft-hololens-holograms-parts-teardown-photos-hands-on
No partial blocking of light, it wouldn't work with focus.

How does focus work btw? Are the holograms projected at the correct focal length, or do they exist at a certain minimum distance from your eyes. VR headsets have convergence sorted out, yet everything is at the same focal length. So even though close ojects in VR look like a double image when you look at the background and vice verse, both fore and background are always at the same focal distance, which takes some getting used to. Do the holograms actually go blurry when you look at different distances?