I am working on a project that requires a night vision camera. I have a small camera placed on the PCB and 4 IR LEDs placed around it to illuminate the dark room. The rooms are about 20-30qm.
I have selected the OSRAM SFH 4250 IR SMD LED. It has forward voltage of 1.5V, 100mA forward current.
I have two questions:
Are there any security issues with this kind of IR radiance? I want to use the system in my home with 2 small children. Is this kind of IR radiance dangerous to the eyes?
Do I need to use a LED driver? Or is it enough to run with a MOSFET (N-Channel) is shown in the schematic below.
If I need a LED-driver. What is a good choice. There are so many devices to choose from and I actually find it difficult to find an appropriate one.
Thanks for your help. Phillip