Vision Recognition using IR LEDs

I would like to know if anyone has considered or demonstrated IR LEDs light for illuminating the retroreflective targets and having a camera and software that could filter for that level in the spectrum. Say 850 to 940 nm? I know an IR sensor can be enhanced with the use of retroreflective tape, so what is the downside to a camera system. The intent would be a safer tracking option.
Comments welcomed.

I believe 488 has, though I don’t remember how they did it

There’s discussions of some of the pros and cons of IR LEDs in these threads:



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Thank you for these leads.