skyote
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I'll eat my words here. I have practical experience with thermal & some night vision IR.You made a statement that IR won't pass through glass (not sunglasses, just glass). SWIR can. MWIR and LWIR won't pass through any glasses, let alone sunglasses, and LWIR probably wouldn't have meaningful contrast anyway.
But a SWIR camera is capable of picking up eyes through glasses.
I realized that I knew IR for remote controls will penetrate glass, and that must be SWIR like @MReda is referring to.
Sorry for being an *ss @CommodoreAmiga !
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