Apple VR headset may use fluid-filled lenses to counter a user's bad eyesight.
Added 12-01-20 12:11:02pm EST - “An Apple VR or AR headset may be able to automatically adjust the lenses placed in front of the user's eyes by using fluids to deform the shape of the lens to improve the user's eyesight.” - Appleinsider.com
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An Apple VR or AR headset may be able to automatically adjust the lenses placed in front of the user's eyes by using fluids to deform the shape of the lens to improve the user's eyesight.
The fundamental part of augmented reality and virtual reality is that the user must be able to see the virtual content. Given this typically involves the use of a display very close to the user's eyes, a position that may be hard to focus on for long periods of time, VR headset producers use optical lenses positioned between the eyes and the screen, adjusting the perceived focal distance for the user and making it more comfortable to look at.
Modern systems include mechanisms to adjust the way the lenses function for the user, such as changing the distance between the lenses to match the user's pupillary distance or the distance the lenses are from the eyes. There may be a need to change the lenses in some situations, such as if the user wears glasses and needs to remove them to wear the headset.
While the distance-related changes are relatively trivial problems, changing the lenses may not be practical. This could involve changes in the lenses between individual users who probably don't share the same eyesight issues.
In the patent titled "Electronic device with a tunable lens," Apple suggests the problem of lens selection and switching could be mitigated by using a single lens system. One that takes advantage of fluid and pressure to adjust a more malleable lens quickly and with relatively little user effort.
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