Abstract: A skin diagnosis system includes a user terminal including a camera and a dedicated application, and a skin measurement device detachably provided on the user terminal. The skin measurement device includes a body part formed to be detachably provided on the user terminal, an optical part, which is arranged at the body part, includes one or more lenses, and adjusts, to the camera, measurement light reflected from a subject in a state in which the body part is mounted on the user terminal, a light source module, which includes a white light source portion for emitting white light and a UV light source portion for emitting UV light and radiates the white light or the UV light toward the subject, a communication part enabling communication with the user terminal, and a power source for providing power.

Abstract: A skin diagnostic device is provided that includes a body including a coupling member positioned on one surface, the body being attached/detached to/from an electronic device including an image sensor by using the coupling member, an optical unit positioned in the body and including at least one lens, wherein the optical unit is configured to focus measurement light reflected from a target on the image sensor of the electronic device, and at least one light source unit positioned adjacent to the optical unit and configured to irradiate light toward the target, wherein the coupling member includes at least one magnetic body and an alignment member positioned adjacent to the magnetic body.

Abstract: A skin diagnostic device is provided that includes a body including a coupling member positioned on one surface, the body being attached/detached to/from an electronic device including an image sensor by using the coupling member, an optical unit positioned in the body and including at least one lens, wherein the optical unit is configured to focus measurement light reflected from a target on the image sensor of the electronic device, and at least one light source unit positioned adjacent to the optical unit and configured to irradiate light toward the target, wherein the coupling member includes at least one magnetic body and an alignment member positioned adjacent to the magnetic body.