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Unlike manually adjustable focus glasses, such as TruFocals, that place a flexible liquid lens between two rigid lenses, the lenses of the prototype glasses consisted of a layer of liquid crystals sandwiched between two pieces of glass. By applying an electric charge, the orientation of the liquid crystals – and therefore the optical path length through the lens – was able to be changed, resulting in glasses that changed focus electronically.




click here......


There is a YouTube video at the bottom of that page, neato.....
 

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The price will come down after a while. Pity they need batteries, some people will need batteries for their hearing aids and spectacles now. ;)
 

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Now if they can give me two focal lengths in the "reading" area and a button to change from clear to a bronze colored mirror lens that would be really cool. Maybe even different levels of tint adjusted by me, not by how much UV light happens to make it to the lens.
 

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jwhitmore44 wrote:
Now if they can give me two focal lengths in the "reading" area and a button to change from clear to a bronze colored mirror lens that would be really cool. Maybe even different levels of tint adjusted by me, not by how much UV light happens to make it to the lens.
And add a Satnav or GPS system. Maybe satellite TV... :ROFL:
 

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I'd have a pair of Trufocals if they were a bit less pricey and didn't look so much like John Lennon's glasses. Actually I could stand that if they were around 300-400 instead of 700+. I don't mind the manual aspect though the autmatic ones look good. It would seem Trufocals could do that, there are some very small and cheap camera focusing modules that could operate the mechanical slide to focus the specs at whatever they were aimed at. Trufocals also offer the ability to have more than one outer lens. Like a sunglass lens or whatever. It would be nice, I get a crick in my neck trying to read bulletin boards and such that are above eye height with my trifocals. Nothing like old people falling over backwards trying to look at something high on the wall with trifocals.:cheeky1:
 

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My dad wore trifocals and did a lot of carpentry work.

He threw a fit until the eye doctor prescribed a special pair of glasses for him that had a bifocal in the upper quadrant. That allowed him to work on the ceilings and moldings w/o that break your neck movement we all know so well.

I personally have the following:
1 - Distance only, wrap around Ray Ban polarized glasses. Great for driving and m/c riding.

2 - Reading only script

3 - Computer only script

4 - Computer/Reading scripts setup like very large bifocals

5 - Driving/Computer script which allows me to see the dashboard instruments in perfect focus.

This all cost a ton of money, but I was retiring in 45 days, and checked with benefits and saw I had FlexRap funds of about $2,000 which is a use it or loose it thing.

So, since medical expenses is the only way I was able to use it up, I splurged on myself. Greatest Christmas present a person ever received. To be able to see for extended periods of time w/o eye strain.

Of course, all that was last november and they claim the scripts are out of date. Nah, says me. Everything is still great. My eyes have not changed very much since I was 16 years old. Betcha they are good for another 3 years at least.

The only difference is, when 16 years old, I could focus up close, or look "out there". Now, it is take it or leave it focus which is 34 inches for me. That makes 5 pair of scripts ultra valuable.
 

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I have put my glasses upside down a couple of times to look at something high on a wall. Worse is working under my truck need glasses with bifocals top and bottom sometimes.
 

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With tri or bi focals just turn the glasses upside to focus on close objects when they are overhead.
 

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I have a handful of different glasses as well. Reading, driving, sun, all-in-one, etc...

My most worn pair are bi-focal safety glasses, ...plastic tortoise with an obvious parting line for the up-close stuff. I hate the transition from far/near without the bi-focal parting line to give me a clear distinguishing mental cue.

My luck would have those fancy-glasses short-circuiting and frosting over somehow. No thanks.
 
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