Trick to See Infrared

Have you seen Infrared rays so far? It is difficult to see because it is beyond the spectral response of our eye. Our photosensitive cells in the retina detect only the visible light in the range 450-750 nm. But many animals can see infrared spectrum lying above 900nm.Then what we can do to check whether, the Infrared LED in our project is working or not. A Digital camera can solve the problem. See how it detects the infrared.

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3 responses to “Trick to See Infrared

  1. Wow, incredible weblog format! How lengthy have you been running a blog for? you made blogging look easy. The total look of your site is magnificent, as neatly as the content material!

  2. Dear Sri DMK,
    No need to say the range of applications of this. Very nice observation. I too was arguing with a friend of mind about this. You have proved it with figures. Thanks a lot

    • Dear vhhp
      It is a problem for many circuit builders to test the IR LED.Accidentally I observed the IR rays while taking the photograph of a circuit.I think it will be useful for many people.