METHOD AND DEVICE FOR RECOGNIZING SURFACE PATTERN OF OBJECT, SYSTEM FOR RECOGNIZING SURFACE PATTERN OF OBJECT, METHOD AND DEVICE FOR CHECKING FLAW ON SURFACE OF OBJECT, SYSTEM FOR CHECKING FLAW ON SURFACE OF OBJECT

摘要

PURPOSE: To simplify the constituent part consisting of a light emitting element and a light receiving element and to improve the performance by radiating the light from one light emitting element onto the surface of the object to be irradiated and diffusing the reflected light from the irradiation surface of the object to be irradiated on plural light receiving sensors at all times. ;CONSTITUTION: The device consists of a light emitting element 1 directly connected to a microcomputer connecting a read-only memory for program capable of storing data and using a compact disc, light receiving elements 4 being light receiving sensors capable of radiating the light from the element 1 onto the surface of an object 9 to be irradiated and receiving reflected light from the irradiated surface 2 of the object 9, light receiving amplifier, and AC/DC converter which converts the analog data into the digital one. The light from one light emitting element 1 is radiated onto the surface of the object 9 and the reflected light from the irradiated surface 4 of the object 9 is diffused on plural light receiving sensors 4. Thus, the surface pattern of the object being the object 9 to be irradiated can be recognized.;COPYRIGHT: (C)1996,JPO