LiquidLenses
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New high-res imaging could make biopsies obsolete, doctors still cutting up in meantime
So maybe a true-to-life Innerspace is still a few years off, but a professor at the University of Rochester has developed a way to take high-resolution 3D images under the skin's surface, potentially eliminating the need for biopsies in cancer detection. Professor Jannick Rolland created a prototype that uses a liquid lens, in which a droplet of water replaces the standard glass lens, in conjunction with near-infrared light, to take thousands of pictures at varying depths. Those images are then combined to create clear, 3D renderings of what lies up to one millimeter below your epidermis. The method has already been tested on livings beings, but is likely a long way from making it to your doctor's office, which means it's off to the guillotine for that Pangaea-shaped mole you've been picking at.
Researchers develop 'liquid pistons' for cameras, medical use
It may still be years away from any sort of practical use, but a team of researchers at the Rensselaer Polytechnic Institute have developed some so-called "liquid pistons" that they say could shake up everything from cameras to medical devices. Those pistons consist of some droplets of "nanoparticle-infused ferrofluids," which are able to oscillate and precisely displace a surrounding liquid. In the case of a camera, that could be used for a liquid lens of sorts (as seen at right), and the researchers say the same technology may one day even be used for implantable eye lenses. The possibilites don't end with optical uses, though -- the researchers say that the precise ability to pump small volumes of liquid could also be used for implantable drug-delivery systems that would be able to deliver tiny doses at regular intervals. Of course, there's no indication as to when any of that might happen -- in the meantime, you can occupy yourself with the brief but oddly hypnotic video after the break.
British physics professor perfects "tunable eyeglasses" -- no eye doctor required
We've seen small scale liquid lenses progress from concepts to commerical applications, and now Joshua Silver, a retired physics professor at Oxford University, has perfected what he calls "adaptive glasses," applying similar tech in a singular and ingenious way. Aimed at helping developing nations where glasses are expensive and doctors are often in short supply, Silver's spectacles are made of tough plastic with with silicone liquid in the lenses. When purchased, each lense will have a syringe attached to it, and the wearer will be able to adjust the amount of liquid in the lenses -- which essentially changes the prescription -- without the need for an optician. About 10,000 pairs have been distributed in Ghana on a trial basis, with plans to distribute one million pairs in India in the next year -- the ultimate goal is one billion by 2020. And somewhere else in the world, a room full of opticians cry into their beer.
Varioptic liquid lenses now shipping in SnakeCam webcam
We've been hearing about how Varioptic's liquid camera lenses would revolutionize cellphones for a while now, so it's a little bit surprising to see the oil-and-water optics pop up in Akkord Electronics' el cheapo SnakeCam webcams first. The 1.3 megapixel S1300 and 2.0 megapixel S2000 cams feature a Varioptic Arctic 416 lens, as well as bendy mount, built-in microphone, and CMOS sensor, and will sell for just $20 per unit -- but we'd imagine that whoever ends up rebranding these will mark that up a bit.
Varioptic and Seiko to start manufacturing liquid camera lenses
Could it be that liquid lenses for cellphone cameras are finally about to go from promising-but-undelivered tech to the real thing? We're not holding out hope -- they didn't rock the world when they popped up in a couple nondescript Samsung phones before -- but Varioptic and Seiko have just announced a deal to crank out 500,000 of the goopy buggers a month starting in Q3. It's not clear exactly what cellphones these are going to turn up in, apart from being targeted at 5 megapixel camera modules that require continuous auto-focus in video mode.[Via Phone Scoop]
