Engineers funded by the National Institute of Biomedical Imaging and Bioengineering (NIBIB) have developed glasses with liquid-based lenses that "flex" to refocus on whatever the wearer is viewing.
The adjustable "smart glasses" were developed by a University of Utah team led by electrical and computer engineering professor Carlos H. Mastrangelo, Ph.D., and his doctoral student Nazmul Hasan. The work is reported in the January 17 issue of Optics Express.
Science Daily: Tunable electric eyeglasses bend to the will of the wearer
Note: that title is rubbish since the 'will of the wearer' has nothing to do with it and focal adjustment is based on distance to the subject.
Three electronically controlled mechanical actuators bend each liquid lens of the smart glasses to change focus
Credit: Carlos H. Mastrangelo, University of Utah
Relax as the glasses are so hideously bulky you wouldn't even wear them in the dark but these are only the prototypes for study of the process.
Here's the optical plague these spectacles may stop.
Standard glasses compensate for the bend our ageing eyes can no longer achieve to focus. This becomes more complicated if we are unable to focus at multiple distances, which necessitates glasses with multiple lenses for different distances, such as bifocals, trifocals or progressive lenses, which must be regularly replaced as our eyesight changes.
- SD
Many of us need reading glasses over time and, yes, li'l puppy, I know you hate them; we all hate them. It gets even better when you come back to your chair and forgot you left the glasses on the seat because you were in a hurry and later you sit on them.
I also have a pair of glasses for distance vision since that's not precisely ideal and I need two sets of glasses because I won't wear bifocals. Tilting my head up and down or whatever goes with bifocals is not acceptable to me and would only make me feel all the more like I look at the world through a fish tank.
Possibly this new technology in glasses will change all that as they become the last pair of glasses you will ever need.
The combination of the user's prescription information and the distance information is used by the algorithm to instantly adjust the shape of the liquid lenses to allow the user to focus on what they are viewing. Remarkably, if the user looks elsewhere, the change in lens shape needed to focus at the new distance is made in a staggering 14 milliseconds -- 25 times faster than an eye blink.
"Theoretically, these would be the only glasses a person would ever have to buy because they can correct the majority of focusing problems," says Mastrangelo. "Users just have to input their new prescription as their eyesight changes."
- SD
Man, I want some already.
Read the linked article for detail but they plan on marketing some form of these glasses within three years. This is not some pie in the sky project which will likely benefit only your grandkids; this is quite close to right now.
The adjustable "smart glasses" were developed by a University of Utah team led by electrical and computer engineering professor Carlos H. Mastrangelo, Ph.D., and his doctoral student Nazmul Hasan. The work is reported in the January 17 issue of Optics Express.
Science Daily: Tunable electric eyeglasses bend to the will of the wearer
Note: that title is rubbish since the 'will of the wearer' has nothing to do with it and focal adjustment is based on distance to the subject.
Three electronically controlled mechanical actuators bend each liquid lens of the smart glasses to change focus
Credit: Carlos H. Mastrangelo, University of Utah
Relax as the glasses are so hideously bulky you wouldn't even wear them in the dark but these are only the prototypes for study of the process.
Here's the optical plague these spectacles may stop.
Standard glasses compensate for the bend our ageing eyes can no longer achieve to focus. This becomes more complicated if we are unable to focus at multiple distances, which necessitates glasses with multiple lenses for different distances, such as bifocals, trifocals or progressive lenses, which must be regularly replaced as our eyesight changes.
- SD
Many of us need reading glasses over time and, yes, li'l puppy, I know you hate them; we all hate them. It gets even better when you come back to your chair and forgot you left the glasses on the seat because you were in a hurry and later you sit on them.
I also have a pair of glasses for distance vision since that's not precisely ideal and I need two sets of glasses because I won't wear bifocals. Tilting my head up and down or whatever goes with bifocals is not acceptable to me and would only make me feel all the more like I look at the world through a fish tank.
Possibly this new technology in glasses will change all that as they become the last pair of glasses you will ever need.
The combination of the user's prescription information and the distance information is used by the algorithm to instantly adjust the shape of the liquid lenses to allow the user to focus on what they are viewing. Remarkably, if the user looks elsewhere, the change in lens shape needed to focus at the new distance is made in a staggering 14 milliseconds -- 25 times faster than an eye blink.
"Theoretically, these would be the only glasses a person would ever have to buy because they can correct the majority of focusing problems," says Mastrangelo. "Users just have to input their new prescription as their eyesight changes."
- SD
Man, I want some already.
Read the linked article for detail but they plan on marketing some form of these glasses within three years. This is not some pie in the sky project which will likely benefit only your grandkids; this is quite close to right now.
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