Can IR LED damage eyes?
Infrared, visible or ultraviolet electromagnetic radiation, in sufficient concentrations, can cause damage to the human eye. To date, Light-emitting Diodes (LEDs) have not been found to cause any damage.
Is 850 nm infrared?
The most commonly used infrared wavelength for security camera lighting is 850nm IR, it provides best performance versus invisibility balance. Although 850nm IR is invisible to the human eye as “light”, it does produce a slight red glow at the LED light source.
How can I make my IR light brighter?
IR transmitter LEDs are literally just LEDs that emits Infrared Light which is not visible to the human eye. That being said, IR LEDs behave very similarly to regular LEDs and therefore to increase the brightness you need to increase the Voltage it is receiving, just like you would do with a regular LED.
What is nm in IR illuminator?
IR or Infrared wavelengths are measured in ‘nm’ or nanometers, which are used to specify the wavelength of electromagnetic radiation near the visible part of the light spectrum.
Are IR illuminators visible?
Pros and Cons of IR Illuminators Infrared light is invisible to the human eye, but using an IR illuminator does make the user visible to others with night vision.
Is IR light safe?
Medical studies indicate that prolonged IR exposure can lead to lens, cornea and retina damage, including cataracts, corneal ulcers and retinal burns, respectively. To help protect against long-term IR exposure, workers can wear products with IR filters or reflective coatings.
Is it OK to look at infrared light?
Prolonged exposure to IR radiation causes a gradual but irreversible opacity of the lens. Other forms of damage to the eye from IR exposure include scotoma, which is a loss of vision due to the damage to the retina. Even low-level IR absorption can cause symptoms such as redness of the eye, swelling, or hemorrhaging.
Is 850 nm light visible?
Advantages of 850nm The 850nm range is very close to being visible light, the human eye can very slightly perceive this frequency.
What is the difference between 940 and 850 IR?
All cameras are most sensitive to 850nm infra-red, delivering superior surveillance footage at night. 940nm delivers virtually invisible covert lighting but does result in reduced performance (typically up to 40% less) and requires a very sensitive camera.
What is IR LED?
An IR LED (infrared light emitting diode) is a solid state lighting (SSL) device that emits light in the infrared range of the electromagnetic radiation spectrum. IR LEDs allow for cheap, efficient production of infrared light, which is electromagnetic radiation in the 700 nm to 1mm range.