CN-224220229-U - Light emitting control circuit and beauty instrument

Abstract

The application provides a light-emitting control circuit and a beauty instrument, which relate to the technical field of beauty equipment and are applied to the beauty instrument, wherein the light-emitting control circuit comprises a light-emitting module, a light-emitting module and a light-emitting module, wherein the light-emitting module is used for generating light rays irradiated to skin; the system comprises a skin-care instrument, an optical tracking sensor, a control module and a light-emitting module, wherein the skin-care instrument is used for carrying out skin-care treatment on the skin-care instrument, the optical tracking sensor is used for projecting laser to the skin and collecting laser speckle images of the skin at a plurality of different moments, and carrying out image processing on the laser speckle images to obtain the relative displacement of the skin-care instrument and the skin, the control module is electrically connected to the optical tracking sensor and the light-emitting module, and the control module is used for responding and driving the light-emitting module according to the relative displacement. According to the application, the optical tracking sensor is additionally arranged on the beauty instrument, so that the relative displacement between the beauty instrument and the skin can be accurately and rapidly detected through the optical tracking sensor, and the light emitting module is controlled to continue to emit light or stop emitting light according to the relative displacement, so that the risk of skin injury caused by repeated light emitting due to overlong stay time of the beauty instrument in the same area position can be reduced, and further the beauty effect is improved.

Inventors

• LU HAIBO

Assignees

• 深圳由莱智能电子有限公司

Dates

Publication Date

20260512

Application Date

20250529

Claims (11)

1. 1. A light output control circuit, characterized in that it is applied to a cosmetic instrument, said light output control circuit comprising: The light emitting module is used for generating light rays irradiated to the skin; The optical tracking sensor is used for projecting laser to the skin, collecting laser speckle images of the skin at a plurality of different moments, and carrying out image processing on the laser speckle images to obtain the relative displacement of the beauty instrument and the skin; And the control module is electrically connected to the optical tracking sensor and the light emitting module and is used for responding and driving the light emitting module according to the relative displacement.
2. 2. The light output control circuit of claim 1, wherein the optical tracking sensor comprises: A laser emitter for emitting laser light and projecting the laser light to the skin; the driving module is used for responding and driving the laser emitter to emit laser according to a control signal of the control module.
3. 3. The light output control circuit of claim 1, wherein the optical tracking sensor comprises: The sensor module is used for receiving an optical signal corresponding to the laser speckle image and converting the optical signal into an analog electric signal; An analog front end circuit module electrically connected to the sensor module, the analog front end circuit module configured to receive the analog electrical signal and convert the analog electrical signal to a digital electrical signal; The digital signal processing circuit module is electrically connected to the analog front-end circuit module and is used for receiving the digital electric signals and determining the relative displacement of the beauty instrument and the skin according to the digital electric signals; And the input/output circuit module is electrically connected to the digital signal processing circuit module and the control module and is used for transmitting the relative displacement to the control module.
4. 4. The light output control circuit of claim 1, wherein the light output module has a light output interval duration less than or equal to a preset interval duration.
5. 5. A light output control circuit as claimed in claim 3, characterized in that the light output module comprises a drive switching tube and a light emitting device, the control terminal of the drive switching tube being electrically connected to the control module, the input terminal of the drive switching tube being electrically connected to the light emitting device, the output terminal of the drive switching tube being connected to ground.
6. 6. The light output control circuit of claim 5, wherein the light output module further comprises an op-amp module, an input of the op-amp module is electrically connected to the control module, and an output of the op-amp module is electrically connected to a control terminal of the drive switching tube.
7. 7. The light output control circuit of claim 6, wherein the light output module further comprises a voltage stabilizing module, one end of the voltage stabilizing module is electrically connected to the control end of the driving switch tube, and the other end of the voltage stabilizing module is connected to the ground.
8. 8. The light output control circuit of claim 6, wherein the light output module further comprises a bi-directional parallel diode module, one end of the bi-directional parallel diode module is electrically connected to the output terminal of the op amp module, and the other end of the bi-directional parallel diode module is electrically connected to the control terminal of the driving switch tube.
9. 9. The light output control circuit of claim 8, wherein the bi-directional parallel diode module comprises a first diode, a first resistor, a second diode and a second resistor, wherein a cathode of the first diode is electrically connected to an output terminal of the op-amp module, an anode of the first diode is electrically connected to a control terminal of the driving switch tube through the first resistor, an anode of the second diode is electrically connected to an output terminal of the op-amp module, and a cathode of the second diode is electrically connected to a control terminal of the driving switch tube through the second resistor.
10. 10. A cosmetic apparatus comprising the light emitting control circuit according to any one of claims 1 to 9.
11. 11. The cosmetic apparatus of claim 10, further comprising a heat sink, wherein the control module in the light output control circuit is further electrically connected to the heat sink, the control module further configured to adjust a heat dissipation power of the heat sink in response to the relative displacement.

Description

Light emitting control circuit and beauty instrument Technical Field The application relates to the technical field of beauty equipment, in particular to a light emitting control circuit and a beauty instrument. Background In the related art, a beauty treatment apparatus is an apparatus for caring facial and body skin, and generally, the beauty treatment apparatus is applied to the skin by physical means (e.g., electric field, magnetic field, optical energy, thermal energy, etc.), so as to achieve the effects of depilating, cleaning, moisturizing, massaging, promoting skin metabolism, tightening skin, removing wrinkles or other beauty treatment. When a user uses the beauty instrument to perform quick beauty treatment on skin, if the user does not move the beauty instrument in time during the use, the residence time of the beauty instrument in the same skin area is too long, so that the skin in the area is damaged, and the beauty effect is finally affected. Disclosure of utility model The present application aims to solve at least one of the technical problems existing in the prior art. Therefore, the application provides a light emitting control circuit and a beauty instrument, which aim to reduce the occurrence of skin damage during beauty treatment and improve the beauty effect. In a first aspect, an embodiment of the present application provides an output light control circuit, which is applied to a cosmetic instrument, and includes: The light emitting module is used for generating light rays irradiated to the skin; The optical tracking sensor is used for projecting laser to the skin, collecting laser speckle images of the skin at a plurality of different moments, and carrying out image processing on the laser speckle images to obtain the relative displacement of the beauty instrument and the skin; And the control module is electrically connected to the optical tracking sensor and the light emitting module and is used for responding and driving the light emitting module according to the relative displacement. According to some embodiments of the application, the optical tracking sensor comprises: A laser emitter for emitting laser light and projecting the laser light to the skin; the driving module is used for responding and driving the laser emitter to emit laser according to a control signal of the control module. According to some embodiments of the application, the optical tracking sensor comprises: The sensor module is used for receiving an optical signal corresponding to the laser speckle image and converting the optical signal into an analog electric signal; An analog front end circuit module electrically connected to the sensor module, the analog front end circuit module configured to receive the analog electrical signal and convert the analog electrical signal to a digital electrical signal; The digital signal processing circuit module is electrically connected to the analog front-end circuit module and is used for receiving the digital electric signals and determining the relative displacement of the beauty instrument and the skin according to the digital electric signals; And the input/output circuit module is electrically connected to the digital signal processing circuit module and the control module and is used for transmitting the relative displacement to the control module. According to some embodiments of the application, the light emitting interval duration of the light emitting module is less than or equal to a preset interval duration. According to some embodiments of the application, the light emitting module comprises a driving switch tube and a light emitting device, wherein a control end of the driving switch tube is electrically connected to the control module, an input end of the driving switch tube is electrically connected to the light emitting device, and an output end of the driving switch tube is connected to the ground. According to some embodiments of the application, the light emitting module further comprises an operational amplifier module, an input end of the operational amplifier module is electrically connected to the control module, and an output end of the operational amplifier module is electrically connected to a control end of the driving switch tube. According to some embodiments of the application, the light emitting module further comprises a voltage stabilizing module, one end of the voltage stabilizing module is electrically connected to the control end of the driving switch tube, and the other end of the voltage stabilizing module is connected to the ground. According to some embodiments of the application, the light emitting module further comprises a bidirectional parallel diode module, one end of the bidirectional parallel diode module is electrically connected to the output end of the operational amplifier module, and the other end of the bidirectional parallel diode module is electrically connected to the control end of the driving switch tube. Accor