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I'm a bit confused. In order for everything to appears perfectly focused, doesn't the glasses have to generate light rays that are just out of focus enough so y

I'm a bit confused. In order for everything to appears perfectly focused, doesn't the glasses have to generate light rays that are just out of focus enough so your lens refocuses it correctly? So the patterns would have to be calibrated for your degree of myopia or whatever?

ggchappell 16y ago
> ... doesn't the glasses have to generate light rays that are just out of focus enough so your lens refocuses it correctly? I would think so. However, it looks like the idea is not just to focus the light. There's some interesting neurology going on, too. (See my other comments to this post.)
eru 16y ago
The first comment on that site (by Eric Kvaalen) says: "Sounds similar to pinhole glasses. See http://en.wikipedia.org/wiki/Pinhole_glasses http://en.wikipedia.org/wiki/Pinhole_glasses Pinhole glasses do work, and they work regardless of your level of myopia.
- Groxx 16y ago
  But pinhole glasses work by passing all light through a single, tiny hole, which doesn't allow scattering of light from a single source because they must all pass through that point. If you're left with nothing but a single ray from each point, it'll be in focus forever until something disturbs it. This lens sounds entirely different.
  - eru 16y ago
    You can make pinhole glasses with lots of holes, instead of just one. (Just look at the picture in the Wikipedia article for an example.)
    - Groxx 16y ago
      Which is still the same principle. You're mechanically restricting the cone of light from each point of what you're looking at, where a lens will change the direction of light in that cone.
      - eru 16y ago
        The difference might not be as pronounced as you make it sound. You can e.g. get diffraction effects just with a pinhole. (See http://en.wikipedia.org/wiki/Pinhole_camera#Selection_of_pinhole_size http://en.wikipedia.org/wiki/Pinhole_camera#Selection_of_pin...)

ggchappell 16y ago

> ... doesn't the glasses have to generate light rays that are just out of focus enough so your lens refocuses it correctly? I would think so. However, it looks like the idea is not just to focus the light. There's some interesting neurology going on, too. (See my other comments to this post.)

eru 16y ago

The first comment on that site (by Eric Kvaalen) says: "Sounds similar to pinhole glasses. See http://en.wikipedia.org/wiki/Pinhole_glasses http://en.wikipedia.org/wiki/Pinhole_glasses Pinhole glasses do work, and they work regardless of your level of myopia.

Groxx 16y ago
But pinhole glasses work by passing all light through a single, tiny hole, which doesn't allow scattering of light from a single source because they must all pass through that point. If you're left with nothing but a single ray from each point, it'll be in focus forever until something disturbs it. This lens sounds entirely different.
- eru 16y ago
  You can make pinhole glasses with lots of holes, instead of just one. (Just look at the picture in the Wikipedia article for an example.)
  - Groxx 16y ago
    Which is still the same principle. You're mechanically restricting the cone of light from each point of what you're looking at, where a lens will change the direction of light in that cone.
    - eru 16y ago
      The difference might not be as pronounced as you make it sound. You can e.g. get diffraction effects just with a pinhole. (See http://en.wikipedia.org/wiki/Pinhole_camera#Selection_of_pinhole_size http://en.wikipedia.org/wiki/Pinhole_camera#Selection_of_pin...)