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Comments on Tunable Liquid Lens Glasses For The Masses
A retired British physics professor has created simple spectacles that can be fitted to most people who need glasses - cheaply and without an optometrist. (Read the complete story)

"The idea of using a membrane's boundary conditions with positive (or negative) pressures to build lenses (or mirrors) is nothing new. Saul Griffith won the Lemelson-MIT Student Prize for something similar (for the same target audience): http://www.travisdeyle.com/blog/2007/08/08/novel-lens-manufacturing-technique-cheap Also, this has been used extensively for solar concentrators... In fact, I did my Photovoltaics term paper on that topic: http://www.travisdeyle.com/files/publications/PV_TermPaper.pdf"
(Travis 12/24/2008 2:31:19 PM)
"My apologies to Dr. Silver -- from early patents (such as the one linked to below), it appears that his work pre-dated that of Mr. Griffith. http://www.google.com/patents?id=SJgzAAAAEBAJ&dq=Suspension+system+for+a+flexible+optical+membrane"
(Travis 12/24/2008 5:06:43 PM)
"There are plenty of people who could use these, and the sales cost could help fund the cost of distributing them charitably."
(Sell them 3/17/2011 11:03:44 PM)

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