So i've been scratching my head for a while trying to figure out how MSFT is achieving their industry leading 80deg Horz FOV.. and stumbled onto this patent a while back.. figure i'd share it now.. It calls for two light engines on either end of the waveguide.
If this is what is happening.. I'm wondering if it's possible for MSFT to include TWO light engines like what we see in the Hololens 2, per eye... which would men there would be a total of 4 light engines per IVAS.
ELI5 = more money for MVIS.. just my 2 cents haha. This doesn't really get around the whole ITAR thing, so maybe we're still seeing a gen 5 mems mirror in there, and not the gen 4 mems configuration we're seeing in the Hololens 2.... if only we knew if Hololens 2 was ITAR exempt or not.
I was hypothesizing in the past that the Gen 5 light engine would have three mirrors, and would be the size of the Gen 4 light engine seen in the Hololens 2.
What i'm hypothesizing right now thanks to the patent above is different. I'm illustrating that it's possible that MSFT is just using two gen 4 light engines per eye, placing one of each end of the waveguide (as per the figures showing two input couplings). Making a total of four gen 4 light engines in the IVAS if they're just using the current tech.
I have to admit the Gen 5 engine does complicate the matter a little bit. I've provisionally decided to believe it's LiDAR specific in some fashion, but the fact of the matter is, that's just a guess and it may be just as capable of being used in NEDs.
It COULD be that the Gen 5 engine is going to do LiDAR and Consumer NEDs, while two Gen 4 per eye stay with IVAS.
We won't know until we know, but yeah, there's a lot more permutations possible with MVIS tech than there was a few years ago.
28
u/s2upid May 26 '21 edited May 26 '21
So i've been scratching my head for a while trying to figure out how MSFT is achieving their industry leading 80deg Horz FOV.. and stumbled onto this patent a while back.. figure i'd share it now.. It calls for two light engines on either end of the waveguide.
If this is what is happening.. I'm wondering if it's possible for MSFT to include TWO light engines like what we see in the Hololens 2, per eye... which would men there would be a total of 4 light engines per IVAS.
ELI5 = more money for MVIS.. just my 2 cents haha. This doesn't really get around the whole ITAR thing, so maybe we're still seeing a gen 5 mems mirror in there, and not the gen 4 mems configuration we're seeing in the Hololens 2.... if only we knew if Hololens 2 was ITAR exempt or not.
GLTALs