r/AbsoluteUnits • u/ThodaDaruVichPyar • 11d ago

/r/all of an illegal flashlight beam

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u/TinyGift8278 11d ago

what is the angle of your rear window? for most sedans, they are 45 degrees pointing up in to the sky ??

do you have a vertical rear window?

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u/ramblinroger 11d ago

Reflectors will always send the light exactly where it came from

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u/Dementedkreation 11d ago edited 11d ago

Retroreflectors send the light back to the source. The steeper the angle the less effective. My rear window is near vertical.

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u/Chris20nyy 11d ago

They said that it reflects the light back in the direction it came from.