Link to the organization that distributes "adaptive eyewear," a user- adjustable fluid-filled lens system.
http://www.adaptive-eyewear.org/home/ My idea would have been to leave the fluid pumps in place. I think this is exciting technology, and may develop eventually into a very desirable consumer product at a very affordable price. A mechanism for correcting for astigmatism would be a wonderful addition. WHL Character is doing the right thing when no one is watching. On Jun 20, 11:55 am, Beaugrand®™© <[email protected]> wrote: > As I said, I can't wear progressives. I tried some. They don't work > for me. > > Several years ago, I had the idea of constructing a fluid-filled lens > with a clear liquid substance between sheets of clear plastic, or > between a firm clear piece and a thinner, flexible sheet; altering the > amount of liquid would have altered the refractive qualities of the > "lenses." The fluid level would have been controlled by a syringe-like > pump controlled by- (drum roll, please...) - a knob. I imagined I > could have these manufactured in Hong Kong, and sold at WalMart for- I > dunno, $30? > > I did some research into "variable refraction lenses," and came up > with an invention by a physicist named Joshua Silver, who had thought > of the idea himself, a couple years previous to my own brainstorm > (hate when things like that happen). While I had sketches on paper, he > had a working prototype, and a plan to export the finished product to > "Third World" countries at minimal cost. > > I found a similar product recently, priced at nearly $900. I think > that's too much. It isn't sold at WalMart. > > WHL > > Character is doing the right thing when no one is watching. > > On Jun 18, 1:28 am, carrots <[email protected]> wrote: > > > > > Hi Beaugrand, > > > Hope you'r not minding my thoughts on your subject ;) > > > You"r wishing for a "little knob" on your glasses to accommodate " on > > the spot" perfect sight? Search and wish no further. Put ordinary and > > bifocals in the treasure chest, and switch to progressives. I'm a > > happy wearer of progressives and have been so for years. They do it > > all for me, far, near, midfield, sidefield whatever I wish for and all > > of that in just one frame. > > Last year I became a first time online buyer and ordered a pair of Kam > > Dhilon frameless glasses at Coastalcontacts. On top of the perfect > > lenses they put in the frame, the frame ls a-ma-zing! It can be over > > stretched, sit on, stand on, twisted, folded, etc etc. They are like a > > pair of eyes on sticks, and they do the trick for me. Because the > > frame is light, I forget I'm wearing glasses and so do others when I'm > > at "close encounters" if you get my drift..... > > > Some people have problems adjusting to progressives, I think the > > secret is not choosing a frame with large lenses. > > > Ah well, just pondering over the subject on a sunny morning sipping my > > coffee. > > > Grz carrots > > > On 16 jun, 10:06, Beaugrand®™© <[email protected]> wrote: > > > > PD can sometimes be given as a "mono" fraction, such as 32/34; that's > > > the distance from the center of the pupil to the center of the bridge > > > of the nose, the first number corresponding to the right eye, the > > > second to the left. Ordinarily it's written like R32 L34. > > > For progressives or bifocals (some of us can't wear progressives) the > > > larger number (which I assume would be written first, such as 66/63) > > > would be for "distance," the other for "reading," or, in my case, > > > "computer," since, for reading, I hold a book closer to my eyes than I > > > would view a computer screen. > > > > If I sit at a computer screen I grab my "computer glasses," for > > > reading I grab my "reading glasses," if I drive my car I grab my > > > "driving glasses," since, thanks to Ira and GlassyEyes, I can now > > > afford to have several of each kind. > > > > I actually do have some bifocals that I ordinarily wear socially, or > > > when I can't carry a specialized pair, but it's such a joy to be able > > > to put on my reading glasses so I can read the price label on the > > > bottom shelf at the grocery without straining my neck looking through > > > that little "reading" window at the bottom of the bifocal lens. > > > > What I really need is glasses that would adjust by twisting a little > > > knob on the side to change the refractive value of the lens... > > > > WHL > > > > Character is doing the right thing when no one is watching. > > > > On Jun 15, 2:12 pm, powrwrap <[email protected]> wrote: > > > > > On Jun 13, 11:53 am, Sasha <[email protected]> wrote: > > > > > > Re. PD: I learned this week that PD is often given as a fraction, such > > > > > as 58/61. > > > > > The second, higher number is the one to use for progressives, the > > > > > lower for reading glasses. > > > > > Or so I'm told. > > > > > > Anyone know otherwise? > > > > > Almost got it. The number is not a fraction, it's actually two > > > > numbers. Only progressives have 2 PD numbers. The higher number is for > > > > distance vision, the lower number is for reading. -- Check us out at the oft-updated http://glassyeyes.blogspot.com! You received this message because you are subscribed to the Google Groups "GlassyEyes" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/glassyeyes?hl=en
