Patent ID: 8017896
Filing Date: 2011-09-13
Classification: B60J

Abstract:
1. A vehicle accessory, comprising: a light controlling sheet which is attached to a windshield of a vehicle, and of which light transmittance changes according to a value of voltage; and a rear view mirror which insures rear view of the vehicle, wherein the rear view mirror comprises: a front light receiving sensor which measures illumination intensity of the sunlight which enters from the front of the vehicle; a rear light receiving sensor which measures illumination intensity inside the vehicle; and a circuit board which controls voltage to be applied to the light controlling sheet, and the circuit board comprises: storage unit for storing, in advance, combinations of the illumination intensity of the sunlight and the illumination intensity in the vehicle, for applying the voltage to the light controlling sheet; and voltage input unit for comparing a combination of the illumination intensity of the sunlight received by the front light receiving sensor and the illumination intensity in the vehicle received by the rear light receiving sensor, with the combinations stored in the storage unit, and applying voltage to the light controlling sheet based on the comparison result.