Abstract: Disclosed herein is a cooler of a semiconductor laser. The cooler includes a heat sink comprising a first surface and a second surface opposite the first surface; a first conductive layer and a second conductive layer, disposed on the first surface and not short-circuited to each other; and a conductive connector comprising a first end part, a second end part, and a first connection part connecting the first end part and the second end part. The first end part is on the first conductive layer. The second end part is on the second surface of the heat sink and insulated from the heat sink. The first connection part is disposed at a first non-opposite end of the first conductive layer on the heat sink.

Abstract: Disclosed are a contact-type laser operating head and a device for use in medical treatment and cosmetology with laser. The contact-type laser operating head mainly comprises a light emitting port fixture (8) and several light emitting modules forming a light emitting port. The light emitting modules on the periphery and the light emitting port fixture (8) as well as the adjacent light emitting modules are connected by connectors (7). The connector (7) itself or an adaptive connecting structure thereof enables the light emitting modules to be driven to rotate independently so as to follow and attach to the surface to be treated. The light emitting module comprises a lens fixing frame (5) and an optical fibre fixture (6), wherein the lens fixing frame (5) is used to mount a functional lens (2), and the optical fibre fixture (6) is fixedly mounted behind the lens fixing frame (5) for packaging a coupled optical fibre (4) and keeping a light beam output from the optical fibre (4) perpendicular to a lens surface.

Abstract: Disclosed is a bilateral cooling type semiconductor laser system for medical beauty use, the contact window of which can make direct contact with the skin. The bilateral cooling type semiconductor laser system for medical beauty use comprises a semiconductor laser array, an optical waveguide located on the front end of the light emitting surface of the semiconductor laser array, a transparent contact window abutting against the light outlet end of the optical waveguide, a pair of cooling blocks and a first water throughflow block. The first water throughflow block is divided into a basal part and a U-shaped head located above the basal part, and the middle part and back part of the optical waveguide are embedded in the U-type header. A fixed block is provided above the corresponding optical waveguide to press and fix the optical waveguide. There is still a space between the optical waveguide and the side wall of the U-type header.

Abstract: A semiconductor laser system for laser medical cosmetology, comprising a semiconductor laser array (1), an optical waveguide (2), a boss-shaped transparent contact window (3) located at the light outlet end of the optical waveguide (2), and a refrigeration block (4) for conduction cooling of the contact window (3); the refrigeration block (4) consists of a base portion and a hollow head above the base portion; the front part of the hollow head presses against and is tightly fastened to the whole side wall of the contact window (3); the light outlet end of the optical waveguide (2) is located in the cavity of the hollow head, and has a gap between the waveguide and the inner wall of the hollow head; a thermoelectric semiconductor refrigerator (5) is disposed below the base portion of the refrigeration block (4); a first water supply block (6) is disposed below the thermoelectric semiconductor refrigerator (5); and a second water supply block (16) for heat dissipation is installed in the semiconductor laser arr