Cognex Corporation
OPTIC SYSTEM USING DYNAMIC DIFFUSER

Abstract:

Disclosed is a defect inspection device for determining anomaly of an inspection object. The defect inspection device may include: a lighting system which includes a light source for transmitting light onto the inspection object; and a dynamic diffuser located between the light source and the inspection object and capable of controlling a diffusivity of light transmitted onto the inspection object; and one or more processors for controlling the dynamic diffuser based on characteristics of the inspection object.