can a home made infra red camera allow you to see infra red beams used in home security?

Issue by Cooper F: can a home created infra red digital camera allow you to see infra red beams employed in home protection?
i was on youtube and i noticed a video clip that taught me how to make a evening vision digital camera . to do this you need four red celofane lens reduce outs and six blue celofane lens minimize outs positioned in the lens in a pattern of blue red blue red blue red. it explained that it would stop all light from exiting the lens besides for infrared beams. than if you point the infra red beams at somthing and look at the exact same object with a digital digital camera manufactured in the seventies that can see infrared beams you can use it as night vision. my issue nevertheless is, does residence safety and movement sensors use infrared beams to sence motion in a place and if so if you use just the infrared sencing camera could you see the infrared beam and prevent it ? im not intrerested in making use of this so i can use this to rob individuals im just curious. best wishes


Very best solution:

Solution by Yoho
They use infrared, sonar and body heat. The infrared does not shoot out like a laser but a lot more like a flash light so you can't aviod it.

They do have the previous laser ir systems. My grandma had 1. but you are talking about 20+ a long time in the past. That 1 i utilised to be capable to walk over the leading of it since i realized where it was.

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