This looks like an infrared illuminator for a night-vision application. As a general rule, never look directly into a solid-state light source whether it be diode laser or LED. If there is any doubt about it, wear a set of protective goggles appropriate to the wavelength emitted. Vision is a precious thing that should be protected at all times by whatever means necessary. That said, I wouldn't be afraid to walk in front of that thingy when it was on, but I sure wouldn't risk getting up close to peer into the LEDs.
Years ago, when I was a lot younger and more foolish, I was working with a Sylvania CO2 laser emitting five watts at 10.6 μm wavelength. The laser was mounted to an optical table with an assortment of mirrors, lenses, beam-splitters, etc. The on-off switch (a beam-dump solenoid) was positioned on the other side of the beam path. I reached across the table to turn the beam on and received the fully collimated beam on my right forearm as the beam-dump mirror more or less instantly retracted out of the way. I didn't have time to realize my mistake and turn off the beam, so my arm received a nice little burn as, by reflex, I lifted it out of the beam. Lesson learned: know where the laser beam is (or will be) at all times. Another engineer, at about this same time period, leaned over a 300 watt CO2 laser beam to make some sort of adjustment. His tie flopped down into the beam and immediately burst into flames (what was left of it). I wasn't there to see that, but he brought the tie in for everyone to see. Back then CO2 lasers were new and most of us didn't know much about infrared radiation. We learned real quick though. Others were not so lucky. One fellow (not where I worked) lost an eye in a microsecond because of a glint off a metal object when the beam produced by a Q-switched visible laser went astray. That could have been prevented if he had been wearing protective goggles with band-stop attenuation specific to the wavelength of his laser.
Moral of these stories: better safe than sorry. You wouldn't stare into a welder's arc, would you? Don't stare into powerful LEDs and lasers either.
Hop