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Optical

MIT has developed a system known as GelSight, that uses painted rubber to obtain 3D images...

Typically, if someone wishes to obtain three-dimensional images of micrometer-scale objects, they need to use a device such as a confocal microscope or a white-light interferometer. Such equipment is big, expensive, and often has to be mounted on a vibration-free table. Even then, it can take up to a few hours to get the finished images. Scientists at MIT’s Department of Brain and Cognitive Sciences, however, have created a system that can obtain the same kind of images almost instantly, using a soda can-sized sensor and a sheet of rubber. It’s called GelSight.  Read More

The Beep-It optical theremin produces eerie tones when exposed to various light sources

If you’ve ever heard the eerie electronic music at the beginning of a 1950s science fiction movie (The Day the Earth Stood Still, for example), then you’ve heard a theremin. Invented in Russia in the 1920s, the instrument is unique, in that the person playing it doesn’t touch it at all. Instead, they move their hands around its two antennas, causing it to emit different sounds by altering radio frequencies that the machine emits. Although still used by some modern musicians, theremins can be a little pricey, and somewhat difficult to master. That’s where the $35 Beep-It optical theremin comes in.  Read More

Researchers have developed what they say is the world's first-ever permanent anti-fog coat...

Tired of your glasses fogging up on cold days, or of having to spit in your dive mask before putting it on? Those hassles may become a thing of the past, as researchers from Quebec City’s Université Laval have developed what they claim is the world’s first permanent anti-fog coating. Just one application is said to work indefinitely on eyeglasses, windshields, camera lenses, or any other transparent glass or plastic surface.  Read More

German engineers have developed a low-cost disposable endoscopic camera that is the size o...

Tiny video cameras mounted on the end of long thin fiber optic cables, commonly known as endoscopes, have proven invaluable to doctors and researchers wishing to peer inside the human body. Endoscopes can be rather pricey, however, and like anything else that gets put inside peoples’ bodies, need to be sanitized after each use. A newly-developed type of endoscope is claimed to address those drawbacks by being so inexpensive to produce that it can be thrown away after each use. Not only that, but it also features what is likely the world’s smallest complete video camera, which is just one cubic millimeter in size.  Read More

Scientists from the University of Manchester have announced the development of the world's...

Scientists from the University of Manchester have announced the development of the world's most powerful optical microscope. Called the "microsphere nanoscope," the device captures non-diffracted near-field virtual images that are amplified via silica glass microspheres, which are tiny optically-transparent spherical particles. Those images are then relayed and further amplified by a standard optical microscope. The nanoscope reportedly allows users to see objects as small as 50 nanometers under normal lighting – this is 20 times smaller than what conventional optical microscopes can manage, and is in fact said to be beyond the theoretical limits of optical microscopy.  Read More

The eyeball camera connected to a custom made syringe for varying the  the curvatures of t...

Researchers have used the human eye as inspiration for a new type of camera that boasts the simple lens system of the eye, but features the variable zoom capability of a single-lens reflex (SLR) camera without the bulk and weight of a complex lens system. As a result, the “eyeball camera” measures less than an inch in diameter, is inexpensive to make and should be suited to a variety of applications, including night-vision surveillance, robotic vision systems, endoscopic imaging and consumer electronics.  Read More

PixelOptics' emPower! electronic focusing glasses

We have previously reported on the development of prototype adaptive focus glasses at the University of Arizona (UA) that were able to switch focus electronically. Unlike manually adjustable focus glasses, such as TruFocals, that place a flexible liquid lens between two rigid lenses, the lenses of the prototype glasses consisted of a layer of liquid crystals sandwiched between two pieces of glass. By applying an electric charge, the orientation of the liquid crystals – and therefore the optical path length through the lens – was able to be changed, resulting in glasses that changed focus electronically. This technology is now on its way to consumers with PixelOptics showing its emPower! glasses at CES 2011.  Read More

The liquid pistons are comprised of droplets of nanoparticle-infused ferrofluids (Image: R...

Researchers at Rensselear Polytechnic Institute have developed "liquid pistons" that could be suited to a variety of applications. Using electromagnets the liquid pistons, which are highly tunable, scalable and have no solid moving parts, can function as pumps for lab-on-a-chip systems or could be used for adaptive lenses in future mobile phone cameras and implantable lenses.  Read More

Samsung's design for a liquid zoom lens uses two liquid lenses stacked together (Image: fr...

Samsung has filed a patent for a new type of liquid lens that provides not only autofocus capability, but also true optical zoom capability. Liquid lenses, with their small form factor and lack of motors or moving parts, are ideal for use in compact cameras, phones, and other mobile devices. Where a conventional liquid lens may provide only autofocus, Samsung’s design uses two separately controllable liquid lenses in a single array to provide both functions.  Read More

The 3D-Spheric-Mouse from axsotic offers digital artists one-handed, high resolution manip...

Digital artists working in a three-dimensional graphic environment may find current input peripherals a little restricting. Before the creative juices can be let loose, the workspace needs to be moved, zoomed and rotated to the correct position for work to start. Then it's a case of repeatedly stopping to reposition before being able to apply just the right amount of texture, tone or shadow. The 3D-Spheric-Mouse from axsotic promises to make things a little easier by allowing for one-handed rotation and movement of the virtual object over six axes. Job done!  Read More

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