A - Human Necessities – 61 – C
Patent
A - Human Necessities
61
C
A61C 17/22 (2006.01) A61C 17/34 (2006.01) A61N 5/06 (2006.01)
Patent
CA 2540119
An illuminated electric toothbrush comprising a light emitting diode emitting light having a flux density of at least about 30 mW/cm2. An illuminated electric toothbrush having this level of flux density can result in an oral care benefit such as whitening. When this toothbrush is used within the oral cavity the heat generated by the toothbrush remains low enough that the surface temperature of the teeth remains below about 43 ~C. The flux density of at least about 30 MW/CM2 can be achieved by overpowering the light emitting diode, by using a light emitting diode having at least about two dices, and by providing a pulsed or non-continuous current to the LED which results in a pulsing or non-continuous light.
L'invention concerne une brosse à dents électrique luminescente comportant une DEL à densité de flux d'au moins environ 30 mW/cm?2¿, pouvant ainsi apporter des avantages dans les soins, comme une action blanchissante. Lorsque cette brosse est utilisée dans la cavité buccale, la chaleur produite reste suffisamment faible pour que la température de surface des dents reste inférieure à environ 43 ·C. La densité de flux susmentionnée peut résulter d'une suralimentation de la DEL. On utilise alors une DEL ayant au moins environ deux puces et on lui fournit un courant pulsé ou non continu qui donne une lumière pulsée ou non continue.
Chan John Geoffrey
Ghosh Chanchal Kumar
Ping Wang
Pinyayev Aleksey Mikhailovich
Ledgley Law
The Procter & Gamble Company
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