IMAGE INPUT METHOD AND DEVICE

摘要

PROBLEM TO BE SOLVED: To input the image of a work region by sufficiently increasing the light quantity of lighting, when taking a picture of an inspection object with a work with its transmissivity lower than that of a base material disposed at a prescribed position on the high-transmissivity sheet base material by a line sensor camera under a transmission lighting. SOLUTION: This image input method includes to take a picture of an input object by the camera 12 while the input object W with the work (printing pattern) Wa with its transmissivity lower than that of the base material, disposed at the prescribed position on the high-transmissivity sheet base material (transparent film) S is made to pass between the transmission lighting 10 and the line sensor camera 12. The transmission light passing through the region outside the work positioned on an intersection line where the optical axis of the line sensor camera intersects with the inspection object is cut off by making a light shielding member 16 aligned along the intersection line into the state of 16A.