| 摘要 |
<p>PURPOSE:To provide a chip resistor recognition method wherein any effect of halation is prevented to the utmost to reduce the rate of production of mistaken recognition as well as to simplify illumination setting. CONSTITUTION:Outside an area just above a chip resistor 1 a recognition CCD camera (optical recognition device) 20 is disposed on a straight line Z' slanted at an angle theta from a vertical straight line Z with respect to the resistor 1. Further, opposite side surfaces of the resistor 1 including an electrode 2 formed thereon are illuminated with a light ray 10 and various pieces of information on the resistor 1 are recognized with use of a camera 20. Reflected light ray from a glass layer 3 of the chip resistor 1 is substantially not incident on the camera 20.</p> |
