Welding protector comprising panel and AR coating layer

A welding protector for protecting an operator, the welding protector comprising:

• a helmet unit having an opening and a shield portion surrounding the opening;
• a mounting frame unit including a first end and a second end, wherein the mounting frame unit is hingeably coupled to the shield portion at the first end;
• a movement control unit installed on the helmet unit, connected to the mounting frame unit, and controlling movement of the mounting frame unit by transmitting power to the mounting frame unit;
• and
• a cartridge unit hingeably coupled to the mounting frame unit adjacent the second end and disposed on a path of light generated during a welding operation,
• wherein the cartridge unit includes:
• a filter portion;
• a panel portion coupled to the filter portion and configured to be disposed closer to a face side of the operator than the filter portion;
• a glass portion configured to be disposed closer to the face side of the operator than the panel portion;
• and
• an information display portion combined with the glass portion and visually displaying work information,
• wherein the movement control unit includes:
• a first knob formed as a dial, wherein the first knob is configured to be rotated clockwise or counterclockwise about a rotation center axis located at a center of the first knob, and to move the mounting frame unit and the cartridge unit coupled to the mounting frame unit along a first linear axis in response to rotation of the first knob;
• and
• a second knob formed as a dial, wherein the second knob is configured to be rotated clockwise or counterclockwise about the rotation center axis that is located at a center of the second knob, and to move the mounting frame unit and the cartridge unit coupled to the mounting frame unit along a second linear axis orthogonal to the first axis in response to rotation of the second knob, wherein:
• the second knob is operably coupled to the first knob while sharing the rotation center axis, and has a larger area than the first knob in order to distinguish the second from the first knob and
• the second knob further includes at least one wing portion configured to protrude along an outer peripheral surface of the second knob.