INFORMATION ACQUIRING DEVICE AND OBJECT DETECTING DEVICE

摘要

An information acquiring device is provided with a projection optical system which projects laser light onto a target area with a predetermined dot pattern, and a light receiving optical system which captures an image of the target area. Segment areas are set on a reference dot pattern reflected on a reference plane and captured by the light receiving optical system. A distance to each segment area is acquired by matching between a dot pattern captured at the time of distance measurement and dots in each segment area. The segment area sizes differ depending on regions of the reference dot pattern.