Cameras Could Take Night Photos Without a Flash

A team of scientists led by Andras Kis at the École Polytechnique Fédérale de Lausanne in Switzerland have found a material that could make cameras five times more sensitive to light, reducing or even eliminating the need for a flash or a long exposure. The material — made from a mix of molybdenum and sulfur — was used to make a single-pixel prototype sensor that only needed 1/25th of a second to expose a nighttime streetscape that other cameras would require 1/5th of a second. The sensitivity of the new sensor is fast enough that moving people didn’t get blurred.

It works because molybdenite is much more sensitive to light than silicon, the other material other digital sensors in cameras are made from.

Besides sensitivity, there’s another plus to molybdenite: it’s cheap. Unlike other exotic technologies or semiconducting materials, there’s lots of it around and factories making image sensors out of it won’t need re-tooling.

World's Thinnest Camera Sees a Single Cell

The endoscope radically changed medicine; doctors were able to use a tiny camera at the end of a thread-thin wire to look into a patient’s body without major surgery. Engineers at Stanford University have taken the endoscope a step further: they’ve built the thinnest one ever and it see individual cells.

The Stanford is

Their needle-thin endoscope has the potential to image single cancer cells and peer into organs where larger endoscopes could do more damage than good, like in the brain. And the super thin endoscope would create a much smaller scar than a laparoscope, the instrument typically used to do knee surgery.

Conventional endoscopes are built with multiple optical fibers, some of which illuminate the area and others which record the image and carry it back to the viewer. The more fibers inside the endoscope, the better the resolution of the image. But more fibers also translates into a bulkier endoscope.

Kahn’s team built a endoscope using just one multimode fiber. Multimode fibers are capable of carrying light along many different paths — in fact, a “mode” is a path that light takes. The team’s idea was to use a single fiber to both illuminate an object as well as carry data from the image. The challenge is the information gets scrambled on the way, since the light is moving along different paths.

To make it work, Kahn’s team built a device called a spatial light modulator. The modulator sent a continuous beam of laser light down the fiber in random paths. Because of the random path, once the light exited the fiber it made a speckled pattern. Some of that light bounced back up the fiber.

A computer program created by Kahn’s team analyzed the speckled pattern returning up the fiber and used that to build an image. Their technique pushed the resolution of the image even further than what they had expected, and enabled them to see object that were sizes of individual cells.

Kahn said in a press release that he sees most of the new applications in imaging, to study in detail cells as they operate inside the body.

Mini Camera Gets A Big Brain

Cameras are mounted everywhere in sports these days. During the Olympics we had underwater cams for swimmers and athlete's-eye views for bikes. Now there's a camera that could be mounted on a helmet to record not just the athlete's view but her heart rate, acceleration and loction, too.

Called the INCA, the camera has a processor as powerful as any PC, which allows a lot of functionality crammed into a space less than  three inches on a side. The INCA was designed by the Fraunhofer Institute for Integrated Circuits IIS.

4K resolution

4K is a resolution standard in digital cinematography and computer graphics. The name is derived from the horizontal resolution, which is approximately 4,000 pixels (this designation is different from those used in the digital television industry, which are represented by the vertical pixel count). There are several different resolutions that qualify as 4K. YouTube is the only video hosting service that allows 4K videos to be streamed as it allows a resolution of up to 4096 x 3072 (12.6 megapixels).

4K resolution movie sample -

KEA Debuts World’s Cheapest Digital Camera Made of Cardboard

KEA Debuts World’s Cheapest Digital Camera Made of Cardboard.

KEA Debuts World’s Cheapest Digital Camera Made of Cardboard

It’s official. IKEA has unveiled the world’s cheapest digital camera, and it’s made of cardboard.

But you won’t be able to buy them. KNÄPPA, the eco-friendly lo-fi device, will instead be given away to customers in select stores. The camera uses two AA batteries, and a USB connector that swings out can hold about 40 photos, the BBC reports. It shoots a three-second exposure, and processing lasts about eight seconds. Once users are done shooting, they can transfer and delete photos by holding down a button.



IKEA says it isn’t going into the consumer electronic business. The cameras are designed to promote the PS 2012 furniture collection, urging customers to share images of showroom items on the company’s website.

Plans for an enormous telescope, equipped with a 3.2 billion-pixel camera, are ready for detailed designs, its creators announced on April 24. When built, the Large Synoptic Survey Telescope will take photos of every inch of visible night sky every week for 10 years in a kind of time-lapse picture that will provide scientists with unparalleled views of the universe.

The telescope’s research team, which received Critical Decision 1 approval from the U.S. Department of Energy, will now begin to make in-depth designs, a schedule and a budget. Department of Energy projects go through five critical decision stages, according to a department document posted online.

The telescope, known as LSST, is a long-planned and long-anticipated project, originally conceived in 1998. “It is tremendously satisfying to finally see this move forward to the point when we can begin to carry out the project,” a LSST project director, Steven Kahn, of the SLAC National Accelerometer Laboratory in Menlo Park, Calif., said in a statement.

The LSST will gather 6 million gigabytes of data annually, and its detailed images will teach astronomers more about dark energy, dark matter, near-Earth asteroids and the Kuiper belt, a region just beyond Neptune’s orbit where Pluto and other icy objects carve their paths in space.

It can also help researchers track asteroids that threaten Earth, according to the LSST’s website. All the LSST’s data will be publicly available, so “anyone with a computer will be able to fly through the Universe, zooming past objects a hundred million times fainter than can be observed with the unaided eye,” the site says.

Though the telescope was originally scheduled for completion this year, SLAC now says construction will start in 2014. Researchers have already started work on its 8.4-meter (27.6-foot) mirror and on preparing its construction site, atop the Cerro Pachón mountain in northern Chile.

3.2 Billion-Pixel Camera Telescope

Plans for an enormous telescope, equipped with a 3.2 billion-pixel camera, are ready for detailed designs, its creators announced today (April 24). When built, the Large Synoptic Survey Telescope will take photos of every inch of visible night sky every week for 10 years in a kind of time-lapse picture that will provide scientists with unparalleled views of the universe.

The telescope's research team, which received Critical Decision 1 approval from the U.S. Department of Energy, will now begin to make in-depth designs, a schedule and a budget. Department of Energy projects go through five critical decision stages, according to a department document posted online.

The telescope, known as LSST, is a long-planned and long-anticipated project, originally conceived in 1998. "It is tremendously satisfying to finally see this move forward to the point when we can begin to carry out the project," a LSST project director, Steven Kahn, of the SLAC National Accelerometer Laboratory in Menlo Park, Calif., said in a statement.

The LSST will gather 6 million gigabytes of data annually, and its detailed images will teach astronomers more about dark energy, dark matter, near-Earth asteroids and the Kuiper belt, a region just beyond Neptune's orbit where Pluto and other icy objects carve their paths in space.

It can also help researchers track asteroids that threaten Earth, according to the LSST's website. All the LSST's data will be publicly available, so "anyone with a computer will be able to fly through the Universe, zooming past objects a hundred million times fainter than can be observed with the unaided eye," the site says.

Though the telescope was originally scheduled for completion this year, SLAC now says construction will start in 2014. Researchers have already started work on its 8.4-meter (27.6-foot) mirror and on preparing its construction site, atop the Cerro Pachón mountain in northern Chile.