Uv laser marker

A UV laser marker comprising:

• an excitation light generation section configured to generate excitation light;
• a laser light generation section including a nonlinear optical crystal and configured to generate UV laser light on a basis of the nonlinear optical crystal and the excitation light generated by the excitation light generation section;
• a coupling section configured to optically couple the excitation light generation section and the laser light generation section;
• a laser light scanning section configured to two-dimensionally scan the UV laser light generated by the laser light generation section and irradiate a printing object with the UV laser light;
• a print head configured to incorporate the excitation light generation section, the laser light generation section, the coupling section, and the laser light scanning section;
• and
• a printing controller electrically connected to the print head and including a control section configured to control the excitation light generation section, the laser light generation section, and the laser light scanning section,
• wherein the print head includes:
• an emission window configured to emit UV laser light two-dimensionally scanned by the laser light scanning section to an outside of the print head;
• and
• an imaging section having an imaging optical axis independent of a laser optical path of the UV laser light emitted from the emission window and configured to image the printing object via the emission window.