Collaborate Disseminate
Is your scarf really made from cashmere? Is that necktie truly silk? Such questions may soon have an easy answer via a pass with your cell phone’s camera thanks to a tiny near-infrared spectroscopy system developed by researchers in Germany.Continue Re… Continue reading Is it really 100% cotton? Smartphone-sized device can analyze fabrics
Raytheon has unveiled RAIVEN, its latest military optical sensor for aircraft that uses a multi-spectrum electro-optical system combined with artificial intelligence to give pilots a fivefold increase in clarity and range.Continue ReadingCategory: Mili… Continue reading Raytheon’s RAIVEN electro-optics improves pilot vision fivefold
Patients who remain in bed for long periods of time may develop pressure sores, which can in turn become potentially life-threatening chronic skin ulcers. A new sensor could help keep that from happening, using scattered light.Continue ReadingCategory:… Continue reading Optical fiber sensor could keep patients from developing bed sores
Researchers at Princeton and the the University of Washington have developed a tiny camera, the size of a grain of salt, which can snap sharp, full-color images. It’s made with a metasurface that captures light, which could be scaled up to turn entire … Continue reading Tiny salt-grain-sized camera snaps hi-res full-color images
[Fearless Night]’s optical theremin project takes advantage of the kind of highly-integrated parts that are available to the modern hacker and hobbyist in all the right ways. The result is …read more Continue reading Optical Theremin Makes Eerie Audio with Few Parts
Over the last year or so, we’ve been checking in on the progress [Andrew Consroe] has been making with his incredible CNC scroll saw project. While we were already impressed …read more Continue reading Optical Sensor Keeps Eye On Wandering Saw Blade
At some time or another, we’ve all had an idea we thought was so clever that we jumped on the Internet to see if somebody else had already come up with it. Most of the time, they have. But on the off chance that you can’t find any signs of …read more
Continue reading Designing and Building a Custom Optical Fuel Sensor
Readers with long memories will remember the days when mice and other similar pointing devices relied upon a hard rubber ball in contact with your desk or other surface, that transmitted any motion to a pair of toothed-wheel rotation sensors. Since the later half of the 1990s though, your rodent has been ever significantly more likely to rely upon an optical sensor taking the form of a small CCD camera connected to motion sensing electronics. These cameras are intriguing components with applications outside pointing devices, as is shown by [FoxIS] who has used one for robot vision.
The robot in …read more
Thursday night was a real treat. I got to see both Joe Grand and Kitty Yeung at the HDDG meetup, each speaking about their recent work.
Joe walked us through the OpticSpy, his newest hardware product that had its genesis in some of the earliest days of data leakage. Remember those lights on old modems that would blink when data is being transmitted or received? The easiest way to design this circuit is to tie the status LEDs directly to the RX and TX lines of a serial port, but it turns out that’s broadcasting your data out to anyone …read more
Continue reading Joe Grand is Hiding Data in Plain Sight: LEDs that Look Solid but Send a Message
It can be hard enough to take a good photograph of a running kid or pet, and if we’re being honest, sometimes even stationary objects manage to allude our focus. Now imagine trying to take a picture of something moving really fast, like a bullet. Trying to capture the moment a fast moving projectile hits an object is simply not possible with a human behind the shutter button.
Enter the ballistic chronometer: a device that uses a set of sensor gates and a highly accurate timer to determine how fast an object is flying through it. Chronometers that operate up …read more
