Filter device for optical sensor assigned to transparent motor vehicle window, has filter element, which has spectral transmission characteristics corresponding to requirements of respective sensors

摘要

The filter device has a filter element, which has spectral transmission characteristics corresponding to the requirements of the respective sensors. The filter element is formed by an infra-red filter film (2) arranged in or on the motor vehicle window. The infra-red filter film is applied on the vehicle inner side of the motor vehicle window.