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If you mean to put the nightshot in the old Sony handycam cameras, it contains two 840nm IR LEDs hidden inside a violet filter under the lens, and this is from personal experience after disassembly. And I think Sony cameras are the origin of the story. The company changed the driver after the uproar that occurred to it before 2004 due to the XRAY camera filming people, so that the screen became completely white in nightshot mode in the daytime when there was sunlight. I think this is where the story begins.
