Night Vision: Does Night Vision Work Through Glass (Car Windshields, Windows)?
Standard night vision — including both tube-based and digital — does not see through walls, but glass is a more nuanced case.
Standard visible glass (car windshields, window glass): Tube-based night vision can see through standard glass reasonably well, though there will be some light loss and potential reflections. Digital night vision with an active IR illuminator has more difficulty — the glass reflects IR back toward the camera.
Tinted glass: Reduces transmission of both visible and near-IR light. Performance degrades proportionally to tint density.
Thermal imaging (a different technology) cannot see through glass at all — glass is opaque to the long-wave infrared used by thermal cameras.
For surveillance or home security through windows, standard night vision cameras work; thermal cameras do not.