Patent ID: 8350913
Filing Date: 2013-01-08
Classification: B25J,G05B,G06T

Abstract:
1. A calibrating device for calibration in an image measurement system, comprising: a main body having an upper surface; and a characteristic portion which serves as a benchmark for calibration and is in a form of a recess formed in the upper surface of the main body; wherein the characteristic portion comprises a side surface extending in a direction crossing the upper surface, and a bottom surface extending in a direction crossing the side surface; and wherein the bottom surface has an optical reflectance lower than an optical reflectance of the upper surface in relation to light identical to each other, wherein the main body comprises a lower surface opposite to the upper surface; wherein the characteristic portion comprises a through hole formed in the main body to open at both the upper surface and the lower surface, and a closing member separate from the main body and attached to the lower surface to close one of openings of the through hole; and wherein an inner peripheral surface of the through hole defines the side surface and a surface of the closing member defines the bottom surface.