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IR Print for Security Industry

IR Print for Security Industry

IR Print for Security Industry

(OP)
I am developing a a Marking System for the security industry and looking for a Dye or Ink that is visible in the 630mn range. I have been looking at organic fluorescent fluorophore's in the infra-red range but find they are too complex and made for Bio-medical industry thus very expensive. I need a chemical that is water soluble that can be formed into an Ink and invisible to human eye but visible using glasses with 630mn filters under normal ambient lighting conditions. I appreciate that the dye will need to be concentrated since viewing will be bye human eye with filters and not CCTV cameras.

RE: IR Print for Security Industry

I'm not following.  630nm is simply red.

TTFN

Eng-Tips Policies FAQ731-376


RE: IR Print for Security Industry

Near infrared starts at about 800 nm, anything around 630 nm is visible to normal color vision

TTFN

Eng-Tips Policies FAQ731-376


RE: IR Print for Security Industry

(OP)
Sorry 715nm or above

RE: IR Print for Security Industry

(OP)
Perfect thank you...... Exactly what i was looking for.

REGARDS GARETH

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