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CN-121987966-A - Hair growing instrument based on VCSEL laser

CN121987966ACN 121987966 ACN121987966 ACN 121987966ACN-121987966-A

Abstract

The application relates to the technical field of scalp care equipment, relates to anti-drop hair-growing equipment for optimizing a laser conduction path through a toothed bulge structure, and discloses a hair-growing instrument based on VCSEL (vertical cavity surface emitting laser) laser. The instrument comprises an instrument body, wherein tooth-shaped protrusions are arranged on the instrument body, light guide holes are formed in the tooth-shaped protrusions, a PCB (printed circuit board) is arranged in the instrument body, VCSEL (vertical cavity surface emitting diode) lamp beads are arranged on the PCB, the positions of the VCSEL lamp beads correspond to the positions of the light guide holes of the tooth-shaped protrusions one by one, so that laser emitted by the VCSEL lamp beads can directly irradiate the scalp through the light guide holes, an optical lens is arranged in the light guide holes of the tooth-shaped protrusions and used for converging the laser emitted by the VCSEL lamp beads, and a constant-current driving module is further arranged on the PCB and used for driving the VCSEL lamp beads and guaranteeing stable laser power of the VCSEL lamp beads.

Inventors

  • WANG YANG
  • CHEN SHAOWEI

Assignees

  • 深圳瑞识智能科技有限公司

Dates

Publication Date
20260508
Application Date
20260303

Claims (10)

  1. 1. The instrument is characterized by comprising an instrument body, wherein tooth-shaped protrusions are arranged on the instrument body, light guide holes are formed in the tooth-shaped protrusions, a PCB (printed circuit board) is arranged in the instrument body, VCSEL lamp beads are arranged on the PCB, the positions of the VCSEL lamp beads correspond to the positions of the light guide holes of the tooth-shaped protrusions one by one, and therefore laser emitted by the VCSEL lamp beads can directly irradiate the scalp through the light guide holes; And the PCB is also provided with a driving module for driving the VCSEL lamp beads to emit laser.
  2. 2. The VCSEL laser-based hair growing apparatus of claim 1, wherein the PCB board is provided with a positioning structure corresponding to the position of the tooth-shaped protrusion light guide hole, the positioning structure includes a positioning groove or protrusion formed on the surface of the PCB board, and the tooth-shaped protrusion light guide hole and the VCSEL lamp bead are mounted in a precise alignment manner through the positioning structure.
  3. 3. The VCSEL laser based hair growing apparatus of claim 1, wherein an optical lens is disposed in the light guide hole of the tooth-shaped protrusion for converging the laser light emitted from the VCSEL lamp bead; The optical lens is a convex lens or a concave lens, the optical lens is made of optical grade silica gel or glass, and the axis of the optical lens coincides with the luminous axis of the VCSEL lamp bead, so that laser is converged into a light spot with the diameter smaller than a preset threshold value.
  4. 4. The VCSEL-based hair growing apparatus of claim 1, wherein the constant current driving module comprises a current sensor for monitoring the operating current of the VCSEL beads in real time and a feedback regulation circuit for adjusting the input voltage according to the monitoring result to maintain the laser power fluctuation range smaller than a preset percentage.
  5. 5. The VCSEL laser-based hair growing apparatus of claim 1, wherein the tooth-like protrusions are simultaneously used as micro-current conducting members, the portions of the tooth-like protrusions contacting the scalp are made of metal materials, conductive coatings are provided on the surfaces of the metal materials, and micro-current driving circuits are further provided on the PCB board, and the micro-current driving circuits apply micro-current of a preset frequency to the scalp through the metal materials.
  6. 6. The VCSEL laser based hair growing apparatus of claim 5, wherein the micro current driving circuit establishes an electrical connection with a keypad in the main body through a pogpin terminal socket on the main board of the module, a waterproof sealing structure is arranged between the pogpin terminal socket and the keypad, and the electrical connection can bear a preset number of plugging times and has a contact resistance smaller than a preset resistance value.
  7. 7. The VCSEL-based hair growth device of claim 5, wherein the toothed protrusions are made of a composite of a silicone layer and a metal core, the silicone layer surrounding a non-contact scalp area of the metal core, the top end of the metal core exposing the silicone layer to form a conductive contact surface, the silicone layer having a hardness value within a predetermined Shore a hardness range.
  8. 8. The VCSEL laser based hair growing apparatus of claim 1, wherein an axial angle between the axis of the light guide hole and the toothed protrusion is 0 to 90 degrees, the laser irradiates the scalp perpendicularly when the angle is 0 degrees, the laser irradiates the scalp at an oblique angle when the angle is greater than 0 degrees, and the size of the angle is adjusted according to the position of the toothed protrusion on the apparatus body.
  9. 9. The VCSEL laser-based hair growing apparatus of claim 1, wherein the apparatus body is internally provided with a liquid storage tank and a micro air pump, the middle part of the tooth-shaped protrusion is a liquid guiding tooth-shaped protrusion, a liquid guiding channel is arranged inside the liquid guiding tooth-shaped protrusion, one end of the liquid guiding channel is communicated with the liquid storage tank, the other end of the liquid guiding channel is opened on the scalp contact surface of the liquid guiding tooth-shaped protrusion, and the micro air pump is used for conveying the nursing liquid in the liquid storage tank to the scalp through the liquid guiding channel.
  10. 10. The VCSEL laser-based hair growing apparatus of claim 1, wherein a sealing ring is arranged between the module upper case and the module lower case of the apparatus body, a waterproof adhesive tape is arranged at the joint of the main body upper case and the main body lower case, and an optical sealant is arranged at the joint of the light guide hole and the VCSEL lamp bead.

Description

Hair growing instrument based on VCSEL laser Technical Field The application relates to the technical field of scalp care equipment, in particular to a hair growing instrument based on VCSEL laser. Background In the field of scalp care, hair-growing combs that utilize red light to promote hair follicle activity have been widely used. Most of the existing consumer-grade products adopt LED lamp bead phototherapy, but LEDs have the inherent defects of low power and remarkable light scattering, so that the light energy penetrating through the scalp to reach the dermis is insufficient, and the hair-growing effect is limited. Some improvements have attempted to use Vertical Cavity Surface Emitting Lasers (VCSELs) instead of LEDs to increase power, such as panel light structures, where the laser needs to travel a longer path to the scalp, with significant light energy loss in the process, and without solving the light scattering problem. In addition, the lack of an optical optimization design for a laser path in the prior art cannot realize accurate convergence of laser energy, so that the power stability and the light utilization efficiency are difficult to be compatible. Disclosure of Invention The application provides a VCSEL laser-based hair growing instrument, aiming at solving the problems that partial improvement schemes try to adopt a Vertical Cavity Surface Emitting Laser (VCSEL) to replace an LED to improve power, such as adopting a panel light emitting structure, laser needs to be conducted to scalp through a longer path, obvious light energy loss exists in the process, and light scattering is not solved. In a first aspect, an embodiment of the present application provides a hair growing apparatus based on VCSEL laser, including an apparatus body, where the apparatus body is provided with a tooth-shaped protrusion, a light guide hole is formed on the tooth-shaped protrusion, a PCB board is provided in the apparatus body, and VCSEL lamp beads are provided on the PCB board, and positions of the VCSEL lamp beads correspond to positions of the light guide holes of the tooth-shaped protrusion one by one, so that laser emitted by the VCSEL lamp beads can directly irradiate scalp through the light guide hole; An optical lens is arranged in the light guide hole of the tooth-shaped bulge and used for converging laser emitted by the VCSEL lamp bead; And the PCB is also provided with a constant current driving module which is used for driving the VCSEL lamp beads and ensuring the laser power of the VCSEL lamp beads to be stable. In some embodiments, a positioning structure corresponding to the position of the toothed protruding light guide hole is arranged on the PCB, the positioning structure comprises a positioning groove or a protrusion arranged on the surface of the PCB, and the toothed protruding light guide hole and the VCSEL lamp bead are mounted in a precise alignment manner through the positioning structure. In some embodiments, the optical lens is a convex lens or a concave lens, the optical lens is made of optical silica gel or glass, and the axis of the optical lens coincides with the light emitting axis of the VCSEL light bead, so as to converge the laser into a light spot with a diameter smaller than a preset threshold. In some embodiments, the constant current driving module includes a current sensor and a feedback adjusting circuit, the current sensor monitors the working current of the VCSEL beads in real time, and the feedback adjusting circuit adjusts the input voltage according to the monitoring result to maintain the laser power fluctuation range smaller than a preset percentage. In some embodiments, the toothed protrusions are simultaneously used as micro-current conducting components, the parts of the toothed protrusions, which are in contact with the scalp, are made of metal materials, the surfaces of the metal materials are provided with conductive coatings, the PCB is also provided with micro-current driving circuits, and the micro-current driving circuits apply micro-current with preset frequency to the scalp through the metal materials. In some embodiments, the micro-current driving circuit establishes an electrical connection with the key board in the main body through a pogpin terminal female seat on the module main board, a waterproof sealing structure is arranged between the pogpin terminal female seat and the key board, and the electrical connection can bear preset plugging times and has a contact resistance smaller than a preset resistance value. In some embodiments, the tooth-shaped protrusions are made of a composite of a silica gel layer and a metal core, the silica gel layer wraps the non-contact scalp area of the metal core, the silica gel layer is exposed at the top end of the metal core to form a conductive contact surface, and the hardness value of the silica gel layer is within a preset Shore A hardness range. In some embodiments, the axial included angle between the axis