Re:Tunable eyeglass lenses to replace bifocals
by throwanem on Sunday February 05, 2017 @09:22AM
(#13572490)
> You have to move your head to focus, same as with bifocals.
In the given example, I'm going to be holding my phone within the field of the reading lenses, and looking over them at the menu. No head movement is required.
Re:Tunable eyeglass lenses to replace bifocals
by maxerickson on Sunday February 05, 2017 @10:48AM
(#13572850)
Based on Their clunky prototype—sleeker versions are in the works—is based on an infrared distance meter built into the bridge of the frames. I think head movement is required.
If it used pupil tracking to determine where the wearer was looking it wouldn't required head tracking, but it sounds like the focus is set based on what is in front of the distance sensor.
That's how it should work, not how it actually works. You have to move your head to focus, same as with bifocals. It might even be harder to use to focus on a small object like a phone.