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Is infrared light from camera safe?
In general, you should avoid staring at very bright light sources, IR or visible, whether they are designated “safe” or not. However, under any conceivable use case for an IR floodlight in a security application, you should be completely safe.
Can the human eye see 850nm?
A typical human eye will respond to wavelengths from about 390 to 750nm (nano metres). Infra Red light in the 850nm wavelength is hard to see with the naked eye – but not impossible. However its very effective when used with CCTV cameras which can easily be produced with a sensitivity to light in this spectrum.
Can humans see 800nm?
The human body is fully capable of metabolizing and using A2, so with a diet change that eliminates A1 and replaces it with A2, they hypothesized that humans are capable of seeing NIR. This is beyond the wavelength range for visible light (390nm-700nm), and well into the NIR range of 800nm-2500nm.
What is invisible infrared?
Invisible IR illuminators reflect and enhance the light that is present. The range or frequency of wavelengths in light needed to be visible to the naked eye is generally between 390 and 700 nanometers, which converts to 430–770 THz.
Which is the best wavelength for IR LEDs?
Best wavelength for IR LEDs to be used with a hacked up IR camera? So, I recently saw this question and thought it looked simple enough. Instead of a webcam though i used an actual (but old, 3MP) digital camera. The camera was a bit broken anyway (always exposed with weird colors and too dark usually).
What kind of IR light does a CCTV camera use?
Generally, the great majority of security cameras or CCTV Cameras are sensitive to the 850nm wavelength. Although the IR light is invisible to the human eye, the IR LED’s will produce a faint red glow when looking directly at the camera or source.
Can a webcam be used as an IR LED?
Instead of a webcam though i used an actual (but old, 3MP) digital camera. The camera was a bit broken anyway (always exposed with weird colors and too dark usually). Well, I’ve confirmed the IR works now by holding my TV remote up to it. I don’t actually have any IR LEDs on hand though. The two prevalent kinds I see seem to be 950nm and 850nm.
What’s the difference between 850nm and 940nm IR light?
Generally, the great majority of security cameras or CCTV Cameras are sensitive to the 850nm wavelength. Although the IR light is invisible to the human eye, the IR LED’s will produce a faint red glow when looking directly at the camera or source. The main advantage of the 940nm wavelength is that the IR LED’s do not produce any visible glow.