Author Topic: Ultaviolet sensitive camera.  (Read 3258 times)

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Offline firewalkerTopic starter

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Ultaviolet sensitive camera.
« on: November 21, 2016, 01:54:31 pm »
Not thermal camera related, but close enough. :D


Is there cheap uv sensitive camera? I tried to search ebay etc, but the results gives uv filters for normal cameras.

Are the optics and sensors for uv cameras as "hard" as thermal cameras to make?

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Offline Berni

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Re: Ultaviolet sensitive camera.
« Reply #1 on: November 21, 2016, 02:15:45 pm »
UV is about as far as you can get from thermal imaging alright.

Most cameras are sensitive to UV but have some sort of filter in the optic path to stop it. Some webcams use a separate piece of glass or a brushed on coating on a lens to filter out unwanted wavelengths. But the thing is that some kinds of glass also absorb certain UV wavelengths so the optics them self might suck up some of it.
 

Online mikeselectricstuff

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Re: Ultaviolet sensitive camera.
« Reply #2 on: November 21, 2016, 02:20:32 pm »
Depends what you mean by UV - what wavelength range ?
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Offline Chanc3

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Re: Ultaviolet sensitive camera.
« Reply #3 on: November 21, 2016, 02:22:25 pm »
Check out the FUJIFILM X-T1 IR That goes from NIR to UV. Expensive though...
 

Offline firewalkerTopic starter

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Re: Ultaviolet sensitive camera.
« Reply #4 on: November 21, 2016, 02:30:16 pm »
Something like that.

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Offline helius

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Re: Ultaviolet sensitive camera.
« Reply #5 on: November 21, 2016, 03:41:47 pm »
Lenses that transmit UV are very expensive, because (much like infrared lenses) they must be made from special materials. With thermal cameras, resolution is very low anyway, so the aberrations from simple meniscus lenses are not too apparent: UV photography is much more demanding and lenses are correspondingly more sophisticated. Far ultraviolet (below 200nm) is blocked by virtually all materials and even oxygen in the air, so this spectrum is still largely unvisualized.
 
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Online eliocor

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Re: Ultaviolet sensitive camera.
« Reply #6 on: November 21, 2016, 07:33:39 pm »
 
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