These LEDs were made popular by the recent 10x3 meter LED-LP wall installation by Gabriel Giacomini which you can see in the videos below. They used these LEDs around all the sides of the screens. LED-LP is similar to LLP where it creates a plane of light just over the touch surface and the blobs are created when an object breaks the beam. This is a much safer way to make large installations than using lasers. As you can see bolded in the specifications below, the beam angle is very very narrow at 6 degrees, making these the most ideal LEDs for LED-LP.

It is recommended that you space the LEDs as close together as possible to create less of a grid effect as the ideal setup is a continuous plane of light over the touch surface.

Specifications:
Wavelength: 850 nm
Beam Angle: 6 deg
Radiant Intensity: 400mW/sr @ 100mA
Maximum Forward Current: 100 mA
Maximum Power Dissipation: 180 mW
Operating Voltage: 1.5 V

Download the Data Sheet HERE

Included:
(50) 850nm OSRAM SFH4550 LEDs

These LEDs are not tested by us since they come straight from my supplier. You may find one or two not working. These items are non-refundable due to the nature of their fragility if wired incorrectly.



Customer's 3 x 10 meter LED-LP Wall Using These LEDs:



Check out the video below of one of my client's that I helped setup using these LEDs: