IR Hot Spotting Low Tech Fix

[guykuo]

Several of my cameras had pretty severe IR hot spotting. My fix was 4 to 5 layers of 3M Scotch Tape over the IR emitters. Super simple, reversible, quick, and cheap. Put several layers just over the emitter's, not the rest of the optical cover. Add more layers until the IR is diffused the amount you need.

Give it a try if hot spotting is a problem.

 

[bigredfish]

nice

 

[TonyR]

Several of my cameras had pretty severe IR hot spotting. My fix was 4 to 5 layers of 3M Scotch Tape over the IR emitters. Super simple, reversible, quick, and cheap. Put several layers just over the emitter's, not the rest of the optical cover. Add more layers until the IR is diffused the amount you need.

Give it a try if hot spotting is a problem.

View attachment 226128

Too simple, can't possibly work.....I don't like it.
</end sarcasm>

 

[CCTVCam]

Only issue is it probably won't last long due to the IR, but then again it's cheap and replaceable. You could explore other alternatives such as uv stabilised plastics with patterns in them, maybe even some vision obscuring window films such as used for bathrooms etc . At the end of the day, what you're doing is creating a diffuser. Only danger I see to any of this is you are insulating / maybe reflecting some of the light back into the housing, so it might not be advisable if it's subject to high temps.

 

[Iemand91]

Lol, gave it a try and some of my camera's and it actually works great. Much more equal spread of light.
EDIT: well; less hot spot, maybe not more "spread".

 

[guykuo]

BTW, if you ever need to remove old Scotch tape that is too brittle to peel, coat the tape with some Purell hand sanitizer and cover the gel with a piece of plastic wrap. Let the gelled alcohol soak in for 20-30 minutes. Thereafter, everyone pretty much wipes off without any effort. The key is plastic wrap keeping the hand gel from drying out so it has time to soften the adhesive.