Optic system using dynamic diffuser
AssigneeCognex Corporation
InventorsKiyoung Song, Hunmin Cho, Jonggyu Im
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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.
Claims13
A defect inspection device for determining anomaly of an inspection object, the device including:
- a lighting system which includes,
- a light source for transmitting light onto the inspection object;
- and
- a dynamic diffuser capable of controlling a diffusivity of light transmitted onto the inspection object, wherein the dynamic diffuser is located between the light source and the inspection object;
- one or more processors for controlling the dynamic diffuser in real time based on characteristics of the inspection object, wherein the one or more processors are configured (i) to recognize the inspection object from an image data of the inspection object and (ii) to control, corresponding to the recognized inspection object, a first area of the dynamic diffuser to a first state having a first transparency transmitting light onto the inspection object and a second area of the dynamic diffuser to a second state having a different second transparency transmitting light onto the inspection object.
A defect inspection device for determining anomaly of an inspection object, the device including:
- a lighting system which includes,
- a light source for transmitting light onto the inspection object;
- and
- a dynamic diffuser capable of controlling a diffusivity of light transmitted onto the inspection object, wherein the dynamic diffuser is located between the light source and the inspection object;
- one or more processors for controlling the dynamic diffuser based on characteristics of the inspection object, wherein the one or more processors are configured (i) to recognize the inspection object from image data of the inspection object and (ii) to control, corresponding to the recognized inspection object, a first area of the dynamic diffuser to a first state having a first specific pattern of light transmitted onto a first surface of the inspection object and a second area of the dynamic diffuser to a second state having a second specific pattern of light transmitted onto a second surface of the inspection object.
Dependencies are inferred from the claim text.