When I saw the red dot on my wife's Lenovo laptop I immediately thought 'that looks like an IR pass filter.' if a company wanted to have a bypassable privacy sl

When I saw the red dot on my wife's Lenovo laptop I immediately thought 'that looks like an IR pass filter.' if a company wanted to have a bypassable privacy slider they could have an IR cut filter behind the lens and an IR pass filter up front. When the bypass needed to be activated the IR cut filter could be moved out of the way (this happens automatically on night vision security cameras, so it's not farfetched). I don't think they would actually use the bypassable filter in everyone's camera, maybe just political dissidents, but having the red dot be the standard would make it less noticable when a bypassable filter is deployed. We just slide it half way, then there's no irritating red dot and the camera is still covered.