Fig. 1. Skin structure.
Fig. 2. The electromagnetic spectrum.
Fig. 3. Skin penetration depth according to light wavelength.
Fig. 4. System design concept. (a) Appearance size, (b) Light source and galvanic output section
Fig. 5. Control system block diagram.
Fig. 6. Fabricated control board based on F-PCB.
Fig. 7. Periorbital wrinkle treatment prototype.
Fig. 8. Treatment operation flowchart.
Fig. 9. Before and after wrinkle treatment photos. (a)Right-D0, (b) Right-D29, (c) Left-D0, (d) Left-D29.
Fig. 10. Changes in wrinkle indexes before and after use. (a) Right periorbital wrinkle, (b) Left periorbital wrinkle.
Table 1. Galvanic current measurement results
Table 2. Changes in wrinkle indexes before and after use
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