LiquidLens
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Nippon Electric Glass demos liquid crystal lens and 'invisible glass' at CEATEC (video)
How about some glass from CEATEC, eh? The folks at Nippon Electric Glass were showing off its still-in-development liquid lens technology, as well as its already-available "invisible glass." The latter, as pictured above, is very much what it says on the tin albeit with some exaggeration, obviously, but we were still very impressed by how little reflection we saw on it. While it's already being used in art galleries and inside cameras (as sensor covers), Nippon Electric Glass is pushing hard to get its invisible glass featured on mobile devices -- the selling point here is simply to achieve the effect of somewhere in between glossy glass and matte glass, so that you'd get the best color vibrancy with minimal reflection. Do check out the video after the break. As for the liquid lens, Nippon Electric Glass' version uses low-power electric field to control its liquid crystal molecular orientation, thus changing the focal point. You'll also see that the lens is also small enough to be integrated into phones and webcams. While the demo response was pretty quick, we were told that it'll be at least another year before the technology becomes available for us mere mortals. For now, you can see our hands-on demo after the break.
Richard Lai10.04.2012
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.
Christopher Trout02.21.2011
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.
Donald Melanson01.13.2011
LG Display busts out 84-inch 3DTV with 3,840 x 2,160 res, we want the 2D version
Yesterday we brought you Samsung's 19 inches of transparent AMOLED goodness, today LG counters with an 84-inch 3DTV boasting UHD resolution and a claim to being the world's biggest of its kind. To be honest, at that size you really can't get away with old reliable 1080p, so it's comforting to see LG's keeping pixel pitch in mind when designing its headline grabbers. In other news coming out of the SID 2010 show, LG is demonstrating a "liquid lens" TV that'll give you glasses-free 3D, though the details of how that works are a bit scarce, while the company's also pushing its IPS wares in a big way, with a 47-inch HDTV, a 32-inch pro monitor, and a 9.7-inch (sounds familiar) smartbook on show. Also at 9.7 inches, we have color e-paper that's slated for mass production before the end of the year, while that flexible e-paper from January is also making an appearance. A pretty comprehensive bunch of goodies from LG, we'd say. Update: We just noticed a small but freaky 3.98-inch UHD LCD with a world's best 394ppi density. Amazing.
Vlad Savov05.25.2010
TruFocals make steampunk glasses a functional, expensive reality
Glasses with an adjustable focal length -- sounds so simple, somebody must have already done it, right? Well, yes, but earlier efforts have looked more like diving goggles than something you could, you know, wear in public. The Harry Potter-esque TruFocals, on the other hand, are (only just) acceptable looking and operate via the golden slider you see above. By tweaking translucent fluids between a pair of lenses for each eye, it alters the distance at which the specs focus, sort of like having your very own zoom function. The price for such flexibility is $895, which inventor Stephen Kurtin considers a sterling bargain, and we've got video of him after the break explaining just how awesomely revolutionary his product is.[Via CNET]
Vlad Savov08.11.2009
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.
Nilay Patel06.25.2008
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]
Nilay Patel03.14.2008
German researchers create zooming liquid lenses
Liquid lenses have been kicking around as the Next Big Thing for a while, but outside of cameo appearances in a couple Samsung cellphones, they haven't exactly made waves in the market. That may be in part due to the fact that they can be made smaller and cheaper than conventional optics, but haven't been able to provide zoom or particularly high resolution. All that might be changing, however, as a Fraunhofer Institute team working in conjunction with French firm Varioptic has developed a system of 4 liquid lenses that can snap from 1 - 2.5x magnification at the touch of a button. The system isn't quite ready for primetime yet -- exposure times are still a little long, it can't zoom continuously, and the assembly is a little big at 29mm -- but the team is already considering solutions to those problems and is ready to go to the prototype stage. With all the interest from cellphone manufacturers, we'll bet they solve those problems right quick.
Nilay Patel06.12.2007
Researchers create human-like "shape-shifting" lens
Researchers at the University of Wisconsin-Madison have gone back to the source for inspiration with their new artificial lens, creating a so-called "shape-shifting" lens that mimics the way a human eye works. Like other liquid lenses, theirs uses a glass-oil-water interface, but it also adds a a ring of polymer gel around the lens that acts like a muscle, changing the focal length as it expands and contracts. What's more, the gel apparently works simply by reacting to environmental changes, like a rise in temperature or change in acidity, allowing for both smaller and more power-efficient imaging devices than other similar lenses. One example the researchers give is an implantable lens that could react to protein changes in the human body. Not quite Fantastic Voyage territory, but we'll take what we can get.
Donald Melanson08.04.2006