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Sure, lots of image sensors pick up IR. But they are not in the millions of legacy security camera systems at banks, grocery stores, college, corporate and camp
by bsenftner 8y ago
Sure, lots of image sensors pick up IR. But they are not in the millions of legacy security camera systems at banks, grocery stores, college, corporate and campus security systems.
The majority of the surveillance systems of the world are 10-20 years old. they work fine, for their original purpose, and the owners want to add FR, not purchase an entire new system requiring the loss of their previous investment.
- subway 8y agoSay what? All those legacy systems (probably) shipped with a weak IR filter, but the CCD on the the devices will more than happily react to a bright IR light. This is even how the majority of "night" cameras operate. They ditch the IR filter, then illuminate the scene with IR.
- lakechfoma 8y agoYeah this is what I was getting at. How many old cheapo security cameras have no or bad IR filters if that was still the standard for ~2012 flagship Android devices...