Patent ID: 11947143
Assignee: HYUNDAI MOTOR COMPANY
Field: Optics (Instruments)
Classification: CPC G  B | IPC B  G

Claim 9:
10. A filming apparatus installed in an interior of a vehicle to film images reflected on windshield glass, comprising:
a polarizing filter provided on a front surface or a rear surface of a lens, or a front surface of an image sensor, a transmission factor of the polarizing filter being lower at a first point than a second point, wherein reflected light is input from a portion of the windshield glass at the first point and a shimmering occurs at the first point; and
a polarization adjustor provided on one side of the polarizing filter, wherein the polarization adjustor is configured to:
adjust a location of the polarizing filter corresponding to an angle, at which the reflected light is input to the polarizing filter or the intensity of the reflected light input to the polarizing filter; and
change the transmission factor of the light that passes through the polarizing filter.