Although there are some in development. But would you be interested in something like this?
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To me a hud would be useful for two things, in this order of importance:
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A rear view mirror right at the top middle of my field of vision, so I could check what is behind without losing track of my front;
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A GPS.
Gimme those and I will be throwing money at you faster than my wallet can hold it.
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It’s very dangerous to focus your vision four inches in front of your face while driving. It also takes a second to switch from distance vision to being focused so close, which undermines the whole “at a glance” value of a HUD. Race cars have instrument panels pushed as far away from the driver’s face as possible to make the focal length changes inside your eye easier and faster to switch between. A helmet HUD is the extreme opposite of that.
Lensing. BMW HUDs bounce off a few curved mirrors before reflecting off the windshield so some key details appear 30ft in front of the car. Meanwhile, VR goggles have the screen unfocusably close but due to lenses inside, objects can appear any distance away (and it’s not just parallax, there’s near and far focus)
My Cadillac has a video display as a rear view mirror and it has that issue. With a traditional rear view mirror your focal length doesn’t change much, but in my car your focus has to shift to the mirror 2 feet away.
It has upsides though, as passengers or objects in the rear seat don’t affect your mirror view.
Whenever I change vehicles it takes a few minutes to readjust.
Like a motorcycle helmet? I’d love one, show my speed, maybe a gps overlay, rearview, etc. That’d be great.
Control music with my tongue
I’d rather see a HUD on a car windscreen before I’d want a helmet HUD
Um. Those have existed for years.
- Contrast. You can’t use light to make something dark.
- In the HUDs that we do have (Hololens, Google Glass), you typically use something like DLP or waveguides. Both are pretty expensive.
There are fewer barriers with helmets because they are usually tinted.
I’m a fan of anything that keeps eyes more forwards/on the road.
