Medical lighting device

A medical lighting device wearable on a head of a user comprising:

• a frame provided along front and top portions of a head of a user;
• and
• a light source device coupled to one end of the frame to be rotatable relative to the frame,
• wherein the light source device comprises:
• a plurality of lamp modules which are arranged in a direction substantially perpendicular to a straight line connecting two eyes of the user in a case where the user wears the medical lighting device;
• a light arm comprising a first contact terminal, wherein the light arm supports the plurality of lamp modules and is rotatably coupled to the frame;
• and
• angle adjustment devices, each of which connects the light arm and a corresponding lamp module of the plurality of lamp modules so that an angle of the lamp module is adjustable relative to the light arm,
• wherein each of the angle adjustment devices comprises:
• a support member comprising a body and a supporting portion which extends from the body, wherein the support member is disposed on one end of the light arm corresponding to the lamp module;
• a fixed link member comprising a receiving portion which accommodates the lamp module and a coupling portion which is coupled to the supporting portion, wherein the fixed link member is rotatably coupled to the support member;
• a lamp holder comprising a second contact terminal which supplies power to the lamp module by contacting the first contact terminal and a connector which is disposed between the coupling portion and the supporting portion, wherein the lamp holder accommodates the fixed link member;
• a fastening member which is disposed outside the supporting portion;
• and
• an insert link member which is inserted into the coupling portion and coupled to the fastening member, wherein
• the supporting portion, the connector, and the coupling portion are fastened using the fastening member and the insert link member, thereby causing the fixed link member to be rotatably coupled to the lamp holder and the lamp holder to be fixedly coupled to the support member, and
• the angles of the plurality of lamp modules are adjusted, thereby causing a focal length at which light emitted from the lamp modules converges to be adjustable.