Patent ID: 11860110
Assignee: ANRITSU CORPORATION
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 0:
1. An article inspection apparatus comprising:
a transport path configured to transport an article for inspection to an article inspection position;
a light irradiation emitter configured to irradiate the article transported to the article inspection position with light;
a light detector configured to detect light transmitted through or reflected from the article; and
a spectrum analyzer configured to inspect a quality of the article based on spectral characteristics of the light detected by the light detector,
wherein the spectrum analyzer is configured to standardize a measured value of a spectrum of the light detected by the light detector for each wavelength and to determine whether the article is a normal product or a defective product based on a standardized value,
wherein the spectrum analyzer is configured to determine whether the article is the normal product or the defective product based on a threshold value for the standardized value,
wherein the spectrum analyzer is configured to set the threshold value for the standardized value for each range divided in a wavelength direction.