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Detect UV light with iOS Camera


Is there a way to detect the UV ray from the iPhone camera without any hardwares? I don't want to find the exact UV index of the light.

I tried to take a photo from a UV light, but if I analyse that photo, I can only get the RGB pixels. How do I get to know that the photo is taken from UV light? How do the photos taken from the UV light, are differ from the photos taken in the normal light?

I found an app called GammaPix in the app store which says it could detect the radio activity in an area by using only the camera. I want something like that to detect the UV rays.


Solution

  • It is unlikely you can detect UV light via a standard smartphone camera, at least not without a lot of work.

    The GammaPix app does not detect gamma rays directly, but instead "looks for a particular 'signature' left behind by gamma rays" on the camera. The technology behind this signature detection is patented, and was developed as part of a $679,000 DARPA grant.

    Relevant patents: US7391028, US7737410