Analysis device for condition monitoring of a protective glass of a manufacturing facility and a manufacturing facility for an additive manufacturing process

An analysis device for determining and/or monitoring a state of at least one protective glass of an manufacturing facility that is based on optical interaction, the protective glass being provided for protecting a light source configured for manufacturing a workpiece and/or optical elements of the manufacturing facility;

• the analysis device comprising:
• at least one optical sensor device for detecting an object plane associated with the protective glass of the manufacturing facility that is based on optical interactions;
• wherein,
• the analysis device is configured to be integrated into the manufacturing facility and to be positioned in the area of or along the light path of the light source;
• and
• the optical sensor device is configured to be arranged in between the light source and the protective glass of the manufacturing facility and/or spaced from the protective glass on the side of the protective glass facing the light source.