Exposure to light from transilluminators, UV germicidal lamps and crosslinkers can cause severe eye damage and skin burns from very short exposures.
However, for persons who have had the lens of the eye removed (e.g.
because of cataracts), the same exposure can cause permanent retinal damage, resulting in blindness.
Does a flashlight emit UV?
A UV flashlight emits ultraviolet radiation – a type of light energy – that is not visible to the human eye. A UV flashlight takes the same shape and format as a standard white light flashlight, but instead of emitting white light, emits ultraviolet light. Virtually all UV flashlights use LED technology.
Are UV LEDs dangerous?
As for your UV pen light question, it is likely the power was low enough that it was not harmful. Less than 0.39mW (roughly) is considered eye safe so under that no warning would’ve been required. The emitted light power of those LEDs is UVA typically 10mW with a 15° 50% power angle.
What happens if you look into UV light?
Exposure to UV light can also cause photokeratitis, which is basically a sunburn for the eyes. This can be extremely painful, and in the worst cases, a condition called snow blindness can occur, where vision is lost temporarily.
What is a UV flashlight good for?
UV Flashlights. Automotive repairmen use UV light to assist in the repair of air conditioner, oil, and sunroof leaks. Crime scene investigators use it to see blood and bodily fluids during investigations and outdoor enthusiasts use it to spot animal blood while hunting.