Finland invented a micro LED projector mobile phone can movie (map)

According to the CNET website, Finland Upstream Engineering company is developing a LED (light emitting diode) projection system, optical engine of the prototype projector the size of a matchbox, later made only the general mobile phone projector. Equivalent to a mini digital video recorder.

Because of its small size and relatively low cost, the system will make it possible to install a projector on a MP3 player, cell phone or other portable electronic device, and the price is only a few dollars.

To watch the video or pictures of everyone without a mobile phone, and only the image (video) can be projected onto the walls; while the picture brightness than the standard projector, but display pictures can not screen size restrictions on mobile phone and MP.

The reduction in size is due to the invention of Upstream's invention of the light emitted by the LED to thousands of small light beams. Light, whether it is a candle or a LED, has the natural properties of scattering. Upstream has built a complex optical system can collect near the light source light and concentrated to a predetermined target, this is called "photon vacuum" (photon vacuum) of the optical system, like a shell around LED.

The LED projector also can be very cheap, because the Upstream's optical systems do not need a lot of shell parts, injection molding production line is made, the basic price in the vacuum system of photon production may be below $10.

The performance of the current company Upstream lighting products can not reach the level of commercial production, but the company believes that this technology can achieve 70-80% light utilization rate can reach 60%, if the light utilization rate can cause the mobile phone manufacturer's interest. Although many of the basic design and lighting systems to solve the production problems, but also to improve the quality and performance.

One of the main problems is the production of polycarbonate shell mold, the pattern is produced using the chip technology - lithography produced. The production of the model is not satisfactory, but Upstream hopes to produce a commercially viable engine next year.