| 摘要 |
PROBLEM TO BE SOLVED: To provide a skin proximity sensor and method in a dermatologic treatment device.SOLUTION: A dermatologic treatment device includes: a bezel 710 or similar surface; and a treatment source capable of being activated to supply a dermatologic treatment through the bezel or surface, such as a window or similar port. A plurality of contacts leading to remotely located capacitors 720 in some embodiments, or a plurality of capacitive sensors 700 in other embodiments, is positioned in or under the bezel and around the window. Control circuitry coupled to the plurality of capacitors senses the change in capacitance due to skin and inhibits activation of the dermatologic treatment device unless the proximity of skin is sensed. The presence of skin is detected, for example, by measuring changes in number of charge and discharge times, indicating a variation in capacitance. |
