Patent ID: 11933667
Assignee: DISCO CORPORATION
Field: Machine tools (Mechanical engineering)
Classification: CPC G  B | IPC B  G

Claim 0:
1. An inspection apparatus that inspects accuracy of a laser oscillator that oscillates a laser, the inspection apparatus comprising:
a dimming plate that dims a laser beam immediately after the laser beam is emitted from the laser oscillator such that the laser beam passes from the laser oscillator to the dimming plate without passing through a lens;
an imaging unit that images, with a plurality of pixels, the laser beam dimmed by the dimming plate;
processing means that processes an image captured by the imaging unit; and
a display unit that displays the image processed by the processing means,
wherein the processing means has at least two thresholds of an inner ring and an outer ring used for partitioning intensity of the laser beam, and the display unit displays the inner ring and the outer ring,
wherein the processing means has at least a threshold of an intermediate ring between the threshold of the inner ring and the threshold of the outer ring, and
wherein the processing means calculates a deviation amount between a center of the inner ring and a center of the outer ring or a center of the intermediate ring, and the display unit displays the deviation amount.