Secondly, what are the optical power requirements? This is mainly defined by the range to cover, the signal to noise ratio required for image quality, and desired contrast. The optical output power is achieved by high efficacy devices that allow for operation at high operating currents. The Power Topled is ams OSRAM's mid-power device for applications with moderate illumination requirements or when plenty of LEDs can be distributed on a large area to minimize thermal design challenges on the PCB/device. There are versions with 1.6 V and versions called “stack“ with 3.2 V enabling higher output power. The main difference will be explained in the next slide. ams OSRAM offers the OSLON products in many product variations with diverse maximum current ratings for different power needs. The OSLON varieties with smaller maximum currents are usually slightly less efficient and cannot be operated at very large currents, but they are also more cost efficient. There is a high efficacy OSLON that enables the highest possible currents. The highest light output is reached with the OSLON stack version. ams OSRAM still offers the DRAGON series LEDs, but they are not recommended for new designs since the OSLON is a more compact lower cost option with no drawbacks as compared to the Dragon.