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by KaiserPro 24 days ago
> AR glasses coupled to consumer hardware should actually consume less power,

Just on that point, if we are talking about a monochrome screen that is just displaying text, that is just an IO device for a mobile phone, I can see the argument but its not really the case.

Screens _eat_ power, waveguides are really not that efficient, so need mini projectors that are overdriven to produce enough light. Current off the shelf for VGA/25 degree is 95mw for the projector only, none of the other hardware. (https://www.jb-display.com/product_des/17.html)

that gives you 4000 nits to the eye. Which is about enough for normal day to day tasks in normal light. (assuming you've cracked waveguides, and thats an active area of research)

But, thats a poor experience, as its not "world locked" as in being able to attach things to real world objects. For that you need a whole new rendering system along with a SLAM stack to know where you are, a machine perception stack to work out what you are looking at. Bear in mind that 90mw for the projector is about 2/3rds of your entire power budget. bear in mind that even Bluetooth LE is quite expensive ranging from 12-40mw for streaming something like 1mb (although through LE thats a tough ask)

1 comments

just to be clear, I am largely disinterested in standalone glasses for the immediate future for both the precise complaints you aired as well as my lack of need for them to be standalone, I prefer the modularity of display system vs computational platform, which brings its own batteries.
ahh the cyberdeck interaciton model, yeah that actually looks like it could be fun.