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Epilation apparatus and using method thereof

A technology for an epilator and a flash lamp, applied in the field of epilators, can solve the problems of increasing the production cost of the device, increasing the volume and weight of the device, etc., and achieves the effects of easy regulation and easy current flow

Active Publication Date: 2007-05-16
伊夫·樊尚·布罗捷
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this over-design is that the production cost of the device is greatly increased, and the volume and weight of the device are also increased.

Method used

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  • Epilation apparatus and using method thereof
  • Epilation apparatus and using method thereof
  • Epilation apparatus and using method thereof

Examples

Experimental program
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Embodiment Construction

[0043] In Fig. 1, a flashlight FL, a capacitor CP and a switch SW are all set in a loop. A commonly used electronic control module CON sends out a rectangular pulse to make the switch SW open or close.

[0044] In Figures 2 and 3, the operation of the prior art device is divided into three phases:

[0045] 1. When the capacitor CP is charged to the voltage U i , the flash lights up. During this lighting phase, the arc is tiny at first with low current, and then naturally increases in diameter until it touches the inner wall of the flash lamp. This increase in diameter (or expansion) causes a corresponding decrease in the impedance of the flash lamp, thereby increasing the current. The duration of this phenomenon is about 100μs;

[0046] 2. Keep the strobe on by keeping switch SW closed. Throughout this stage, the natural tendency of the arc to spread is prevented, ie the arc is restrained, since the arc has already hit the inner wall of the flash lamp. Therefore, the cur...

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PUM

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Abstract

The invention relates to a hair-removal device which is intended for local skin application. The inventive device is designed to emit at least one light pulse which is generated by an electric current impulse that passes through a flash lamp (FL) such as to form an electric arc, said current originating from the discharge of a capacitor (CP) and being controlled by a fast-switching electronic switch (SW). According to the invention, the aforementioned three elements are disposed in a main loop (CP-SW-FL). During each capacitor discharge, the current passing through the lamp generates a measurement signal (URm) which is representative of said current and which is compared to a reference value (Uref) by a hysteresis comparison device (COMP), in order to control the open or closed state of the switch and to adjust the current by means of the high-frequency cut-off thereof around a determined intensity (Icritic) throughout essentially the entire duration of the current impulse.

Description

technical field [0001] The present invention relates to an epilator for topical skin, capable of emitting at least one light pulse generated by an electric arc formed within a current pulse passing through a flash lamp, the current being generated by the discharge of at least one capacitor, and by rapidly switching electrons Switch control, the above three components are placed in a main circuit. The term "light pulse" refers to a pulse of visible and / or infrared (V / IR) radiation, typically produced by a xenon flash lamp. Background technique [0002] All of these devices produce pulses with a duration between 5 and 50 ms (milliseconds), which is too long for a flash and thus poses certain regulatory problems. [0003] As a rule of thumb, skin response is better if the V / IR light pulse shape is square and the instantaneous power is relatively constant throughout its duration. Among the existing devices that come close to meeting these characteristics, mention must be made ...

Claims

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Application Information

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IPC IPC(8): A61N5/06A61B18/20H05B41/19
CPCA61B2018/00476A61B2018/00452A61B18/203
Inventor 伊夫·樊尚·布罗捷阿兰·马里耶·于格尼
Owner 伊夫·樊尚·布罗捷
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