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Eye of bugs to the rescue of the smartphone

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To continue the use of smartphones in the professional context, researchers from Fraunhofer University were inspired by nature, namely the eye of certain insects.

If the smartphone is used for work by the employees of a company, its structure makes it a tool for individual use. One solution would be to add a micro-projector to it which, when placed diagonally on a table, could then allow the mobile's screen to be diffused over the surface. This is the idea that the researchers have been working on: a new powerpoint presentation thanks to a support outside the device, an LED mini-projector placed on the smartphone.

In concrete terms, this tool plugged into a Smartphone, whose size does not exceed 2 x 2cm, would make it possible, by placing a mobile diagonally on a table, to project a presentation the size of an A4 sheet of paper onto the surface on which it is placed. It would also allow the presentation to be played on the device itself, for example by zooming in on the screen to enlarge a diagram of the projection.

Different perspectives

But to do this, researchers had to overcome the problem of diagonal image diffusion, which can distort the image or blur parts of it. To do this, they drew inspiration from nature, namely the eye of certain insects. The projector consists of hundreds of small microprojectors aligned as in a painting. These complement each other because they all have a slightly different perspective of the overall image, each generating a part of the image. In this way, the projection offers a high quality image. To adapt to the position of the smartphone, the researchers have also developed a software to be installed that allows the position to be captured using the smartphone's camera, so that the camera is able to provide the geometric information.

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The software then calculates the position of the camera and the perspective of the individual images to ensure that the projection is in focus. In detail, the projector consists of wafers containing nearly three hundred chips, themselves composed of 200 lenses. However, it will take three to four years before a microprojector will appear on the market, as projection technology requires a high pixel density for the digital imaging system. Note that the protype, whose size is 2x2cm, will be presented at the Optatec trade fair in Frankfurt from 22 to 25 May. (Source : http://www.atelier.net/)

The pocket projector for iphone4

projectHowever, there is an almost equivalent process for the iPhone 4: the Pocket Projector. This is a pocket projector no larger than a protective shell. The device can project 640×360 resolution video onto a surface of 127 centimetres and has a sharpness setting and a 0.5 watt speaker. The projector is specially designed and manufactured for iPhone 4, 4S and iPhoe iPod touch. So we can make our professional presentation anywhere, at any time, or share our photos or videos by transforming our living room into a private pocket cinema!


The Samsung Galaxy Beam

galaxybeamWith a mobile device, there are several ways to share content: the most well-known is to use a social network and click on the "Share" button. The other method, less seen: displaying the screen content on a wall. That's what Samsung's latest product, the Galaxy Beam, offers. Equipped with a 15 lumens projector integrated in its upper edge, it projects the contents of its screen onto a wall, ceiling or any flat surface. All types of multimedia content, such as games, movies and photos can be projected over a width of 127 centimetres. A dedicated application on the projector makes it easy to select content and activate the projector in just a few steps.

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