Author Topic: Can I tell the Lens material by it's reflection color?  (Read 1455 times)

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Offline sam1275Topic starter

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Can I tell the Lens material by it's reflection color?
« on: March 06, 2017, 02:40:19 pm »
Hello.
I just noticed the reflection color of different thermal camera lens are different, even if the scene is white, the Flir ix is purple, thermal eye is original color, and Indigo Alpha id yellow.
Does this cause of different lens material? Can I tell the Lens material by it's reflection color?
Thanks
 

Online T3sl4co1l

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Re: Can I tell the Lens material by it's reflection color?
« Reply #1 on: March 06, 2017, 03:31:35 pm »
https://www.google.com/search?q=zinc+selenide

That's the yellow stuff.  Black to silver would most likely be germanium, but an interference color like purple suggests an antireflective coating.  Coatings can make most any color, so aren't indicative of the underlying material.

Tim
Seven Transistor Labs, LLC
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Offline cvanc

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Re: Can I tell the Lens material by it's reflection color?
« Reply #2 on: March 06, 2017, 03:38:11 pm »
Coatings can make most any color, so aren't indicative of the underlying material.

^^^This.^^^
 

Offline sam1275Topic starter

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Re: Can I tell the Lens material by it's reflection color?
« Reply #3 on: March 06, 2017, 04:22:25 pm »
Thank you!
 


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