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milton2
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Joined: 09 Nov 2012
Posts: 10
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 Posted: Fri Nov 09, 2012 6:46 am Post subject: Water Drop Lens |
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Physicist and inventor, Bruno Berge, has created a liquid optical lens.
Using a process known as electro-wetting, a water drop is deposited on a metal substrate and covered by a thin insulating layer. When a voltage is applied to the metal, it modifies the angle of the liquid drop.
The liquid lens is comprised of two liquids, water and oil, one is a conductor while the other is an insulator. A variation in the voltage causes a change to the curvature of the liquid to liquid interface, which changes the focal length of the lens.
The use of liquids allows for low cost construction. There are no moving parts and electrical consumption is extremely low. The lens has a large inverse focal length range, quick response, high optical quality and can operate in a wide temperature range.
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dianneazuma54
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Joined: 23 Nov 2012
Posts: 10
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| Posted: Fri Nov 23, 2012 6:06 am Post subject: |
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Does anyone know how to capture a water drop in puddle?
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babynancy543
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Joined: 08 Dec 2012
Posts: 10
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| Posted: Sat Dec 08, 2012 4:29 am Post subject: |
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Why does it say that make up should be applied after wearing soft contact lenses?
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