Inspection apparatus, ptp packaging machine, and method for manufacturing ptp sheet

A manufacturing method for manufacturing a Press Through Package (PTP) sheet, the manufacturing method comprising:

• forming a pocket portion in a container film of a belt-like shape;
• filling an object into the pocket portion;
• mounting a cover film onto the container film to close the pocket portion;
• and
• inspecting the PTP sheet for inclusion of a different type of object, wherein
• the inspecting comprises:
• irradiating an object with near infrared light;
• dispersing reflected light from the object irradiated with the near infrared light;
• taking a spectroscopic image of the dispersed reflected light;
• obtaining spectral data at a plurality of points on the object based on the spectroscopic image;
• selecting, as typical spectral data representing the object from among the spectral data at the plurality of points, one of:
• spectral data in which a luminance value in a predetermined wavelength is a median value;
• and
• spectral data in which a summation of luminance values in a predetermined wavelength range is a median value;
• and
• performing a predetermined analysis for the object based on the typical spectral data and detecting a different type of object.