Category Archives: Fun News.

Never Get Lost Again: Pico Projectors team up with Mobile Apps

Ever think to yourself, “Wouldn’t it be cool if we had a navigation system like they had in video games? Well, MIT is working on a really interesting project called ‘Guiding Light’, which is an  indoor positioning system app that works as a GPS for indoor locations. Check out the video below!

 

 

 

Based on pico projectors and a combination of sensors the device is able to detect your location within a building, along with the direction that you are facing. Once your location is obtained, the device projects a small arrow in the direction that you should walk to reach your destination.If you wanted to find a specific store in the mall, this would be great.

 

Japanese Researchers Invent Bubble Projection Screen

Tokyo, Japan –  Researchers at the University of Tokyo have developed a system that uses such bubbles as kind of projection screen based on colloidal liquids. The bubbles are made of a thin film, and allow light to create a reflection on one section before passing through other sections. Researchers found that if the reflection can be controlled, then the bubble can be used as a display.

At the core of the ingenuity at work here is the use of ultrasound to manipulate the way the surface of these bubbles work. The membrane screen is controlled using ultrasonic vibrations, which are played out of speakers and can change the membrane’s transparency and texture depending on the scale of the sound.

A device makes the membranes automatically. With the aid of the projector and ultrasonic speakers, the system alters the appearance of these membranes by controlling their color, transparency and BRDF (Bidirectional Reflectance Distribution Function).

Researchers  found that they can greatly improve  the quality of the projection by manipulating the ultra sonic waves, creating more realistic, distinctive, and vivid images on screen, the researchers said. “This system contributes to open up a new path for display engineering with sharp imageries, transparency, BRDF and flexibility,” said lead researcher Yoichi Ochiai.

The ingredients of the bubble the Japanese researchers have created include sugar, glycerin, soap, surfactant, water and milk. These result in a resistant colloid bubble that cannot be easily popped as even solid objects can pass through it without popping it. What’s more, by combining more than one screen, it is possible to create a kind of 3D or holographic effect.

The research team says the screen could be useful for visual artists but is not yet ready for commercial integration. We think this would make an excellent pairing with an equally small pico projector. AAXA? Optoma? 3M? Any takers?

Source: Yoichi Ochiai

 

 

 

 

 

 

 

 

 

 

 

 

 

Carnegie Mellon Researchers Reduce Headlight Glare through Projectors

 

Researchers at Carnegie Mellon University say they’re working on a solution that could make raindrops nearly invisible while lighting the road in front of you.

The problem Carnegie researchers are trying to solve is that headlight beams are reflected back at the driver when it rains, snows, sleets, et cetera. The brighter your headlights, the brighter the light is reflected back at you, and the harder it is to see the road ahead of you.

Carnegie’s researchers came up with a possible solution involves a camera, a digital light processing (DLP) projector, and a reflecting mirror, alongwith a computer to control the whole setup. As rain falls, the camera can detect individual raindrops and predict their velocity and trajectory. It sends that information to the projector, which projects a small black dot over each rain drop’s location. The result, researchers hope, is the ability to light in front of the car but not the raindrops, which would result in the most light output without returned glare.

As expected, it’s very difficult to detect individual raindrops and light around them. The system takes about 13 milliseconds to find raindrops and respond accordingly, so the top portion of the light beam would still hit the raindrops like a standard headlight. As it stands today, the system also works best at a speed of about 19 mph, where it’s 68.9 percent accurate at blacking out raindrops while still keeping over 95 percent light throughput. Drive faster and the system steadily loses accuracy. As you can see, it still is a ways off from mainstream implementation.

As we always say with futuristic tech like this, it’s going to be many years until we see something commercially viable that works like this. The system will need some big strides in digital light processing projector technology to work better,

Still, the idea of going from halogen bulbs to xenon to LED to DLP projector headlights is intriguing, and having two DLP projectors and two wide-angle cameras mounted to the front of your car would open up a whole new world of active headlights that could shift to avoid blinding oncoming traffic or pedestrians.

Who knows, maybe eventually we can project movies from those headlights.

 

 

Casio announces 12 3D Laser/LED hybrid projectors

 

 

 

Casio announced a total of twelve new DLP projectors for the Japanese market, all of which can produce 3D images and feature a hybrid laser/LED light source. The company will start rolling out eight “standard” models starting in Japan in May, before offering two short-focus and two high-end devices in July.

The most interesting model is the flagship projector, the XJ-H1650, which features

3,500 lumens brightness (lamp life: 20,000 hours)
1,400:1 contrast ratio
1,024×768 resolution
Wifi IEEE 802.11b/g, Ethernet
one HDMI interface, one USB 2.0 port

For viewing images in 3D, Casio recommends using the so-called “3D Glasses for CASIO Projector”.

Casio plans to price the cheapest model, the “standard” XJ-M140 (2,500 lumens brightness, 1,024×768 resolution) at $1,200, with prices going up from there (the flagship XJ-H1650 will cost $2,800).

Projector made form legos… is this even real life?!?

Believe it or not, this functional Super 8 projector was built by Friedemann Wachsmuth with Lego. He used two Lego technic motors to drive the projection and rewind mechanisms and a bright LED flashlight as a light source. When all is said and done it can play crisp video at 24 frames per second.
Beyond the LED, the only other non-Lego components of this projector is the lens and the film reels. We assume the film itself is not made from Lego either, though that would make for some interesting home movies. Picture an hour of footage featuring Legoman being tortured as he winds through the reels over and over again.
This is certainly an impressive, if not ingenious build—but it looks like a lot of work. I’ll stick with this app to make my retro home videos for the time being thank you very much.

via Wired