A toothbrush (100) includes a head assembly (101) with bristles (107), a base assembly (105), and a connector (102), which connects the two. A battery and light assembly (104) are disposed in the connector (102) and base assembly (105), and a power button switch (117) turns the power to a light source "ON/OFF". The base assembly (105) includes a transparent lens portion (118) at the distal end, through which a light beam from the light source shines when the switch is turned ON. The light beam can project a picture or icon (121) on a slide (120) through the lens portion (118) onto a remote surface. The slide (120) can be permanently fixed in the base assembly or interchangeable. A timer ( 111 ) is connected to the batteries, light source, and switch, and allows the light source to turn on for a predetermined period of time. Alternatively, the base assembly (105) contains at least one indicator light, which indicates how long the light source has been ON.
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机译：牙刷（100）包括具有刷毛（107）的头部组件（101），基座组件（105）和连接两者的连接器（102）。电池和灯组件（104）布置在连接器（102）和基座组件（105）中，并且电源按钮开关（117）将电源切换到光源“ ON / OFF”。基座组件（105）在远端包括透明透镜部分（118），当开关接通时，来自光源的光束通过该透镜部分发光。光束可以将图片或图标（121）通过透镜部分（118）投射在幻灯片（120）上到远程表面上。滑块（120）可以永久固定在基座组件中，也可以互换。计时器（111）连接到电池，光源和开关，并允许光源开启预定时间段。替代地，基座组件（105）包含至少一个指示灯，其指示光源已经开启了多长时间。
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