作者: Thomas Jason Dooley , Greg Shepherd , Timothy Lawrence , Mike Barnes , Mathieu Julien Jean Emile Zastawny
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摘要: A short wavelength visible light-emitting toothbrush with an electronic interlock control device preventing operation when the is removed from user's mouth. The over necessary to prevent accidental eye exposure high intensity light source a in range of 400 nm 500 nm. activates upon formation electrical circuit between brush handle contact users hand and head or bristles moisture contained human mouth such as saliva water mixed toothpaste but deactivates immediately mouth, thus protecting eyes direct power brush-head.