Patent ID: 8425092
Filing Date: 2013-04-23
Classification: B60Q

Abstract:
1. A headlamp control device comprising: a visual object luminance estimating unit which estimates a visual object luminance based on information about a captured image of an area in front of a vehicle; an adapted state estimating unit which estimates an adaptation luminance of a driver of the vehicle based on the information about the captured image, wherein the adaptation luminance is held at a recovery state for a time period after a peak visual object luminance is estimated, the recovery state being a higher luminance than a luminance based solely on the visual object luminance; a recognition limit estimating unit which estimates a recognition limit luminance of the driver based on at least the adaptation luminance, wherein the recognition limit luminance represents a luminance in which the driver can recognize an object in the area in front of the vehicle; a visual object recognition determining unit which determines whether the visual object luminance is less than the recognition limit luminance; and a light distribution control unit which controls a light distribution of a headlamp unit provided in a vehicle such that the visual object luminance is included in a range of the recognition limit luminance, if the visual object luminance is less than the recognition limit luminance.