Covering iR sensor Module

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bobdxcool

Joined Feb 12, 2012
39
I am using an IR sensor module (https://www.amazon.com/HONG111-Infr...c-Reflection/dp/B06XKN15TT?ref_=fsclp_pl_dp_3) for my automatic dispenser system. Now, while mounting the IR sensor module in my enclosure, which material can I use to cover the IR sensor module which can allow the IR light to pass through below the glass for the hand to get detected.

I wonder what material is used to cover the IR sensor used in restroom flush systems.
 

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ericgibbs

Joined Jan 29, 2010
13,847
hi bob.
As it is 'public' wash-room, subject to possible vandalism, I would use an unbreakable plastic cover rather than glass.
It should be easy to test for IR transmission by building a simple test rig.
E
 

jpanhalt

Joined Jan 18, 2008
11,088
Since it is near IR, virtually anything that appears clear will work. That means glass, acrylic, polycarbonate, polyethylene, polystyrene and even cloud stuff like polypropylene will work. Smoked or red tinted acrylic is often used.
 
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