Patent ID: 7885743

Claim:
An electric mirror control device, comprising: at least one angle sensor for detecting an angle of a mirror surface, wherein the angle sensor is selected from a group of angle sensors, with each angle sensor having a different specification, and each of the specifications including a different proportionality constant of a detection output voltage to the angle of the mirror surface; a control device for controlling a motor-drive unit that tilts the mirror surface and changes the angle of the mirror surface based on the detection output voltage output from the angle sensor; and a proportionality constant conversion unit for converting the proportionality constant to be positive or negative depending on the specification of the angle sensor, the control device including an angle-sensor-specification determining function for determining the specification of the angle sensor based on whether the proportionality constant of the detection output voltage output via the proportionality constant conversion unit is positive or negative and a specification-by-specification control function for controlling the motor-drive unit in accordance with the specification of the angle sensor determined by the angle-sensor-specification determining function from a plurality of specifications stored in advance.