Extremely tiny glass lens can be used to turn smartphones into projectors

Technology amazes me still, although every day midst I in it. It is like the extremely small glass lenses, which can make mobile phones to viewers that seen me "Sweeeet". And looking at the image above, I am confident that you think readers alike.

Find it, it's small as a granulate sugar, but it could be to make it in mobile phones to useful work, or play tools are integrated. Here are the details of this small speck of dust glass, as Wired reported:

1 Mm x 1 mm x.8 mm, the smallest FLGS3 lens series is barely the size of the lead pencil lead; and it is actually the smallest in the industry. Aspherical glass lenses as follows are used in optical communications applications, where data was converted and transmitted as light signals. Projectors are such an application.

What is pretty much not only the size is amazing this thing, but that it can be made and polished to a degree, used in optics. Add a phone to a viewer with this is cool, because the most Smartphone projectors were expensive and bulky equipment. They eat much your battery, and so there is very little incentive to buy them. The projector, embedded in the phone may be it is more likely, so it is fantastic to see little bits of technology like this.

Here is some techno jargon on this thing:

This lens has in particular what has called a coupling efficiency 73 percent. Coupling efficiency is a measure of light transmission efficiency, the amount of broadband light projected through a gate, taking into account the account things such as reflection and proliferation. Since it had a lower loss than previous models, the coupling efficiency of 68% has less energy and creates less heat. The increase of the coupling efficiency is higher effective numerical aperture due to the lens.

Translation: this mini glass lens allows light through it much lighter than similar versions in the past.

We begin to see projectors as a standard feature for smartphones? Who knows. It is hard to imagine there regular use for them exactly as video call, not pretend like you use every day, but it would be pretty damn cool, snap a series of photos with your phone and show them to friends at a party on a wall project.

[Via: Wired]