ILLUMINATED ADVERTISING BOARDS AND COMPONENTS THEREOF
专利汇可以提供ILLUMINATED ADVERTISING BOARDS AND COMPONENTS THEREOF专利检索，专利查询，专利分析的服务。并且An illuminated advertising board comprises a bracket (12), a light directing unit (16) and an elongate light unit (14). The light directing unit (16) comprises a translucent layer having first and second opposed faces, and a reflective layer provided at or adjacent the first face of the translucent layer for reflecting light towards the translucent layer. Light is introduced into the translucent layer such that the light directing unit (16) emits light from the second face of the translucent layer. A waterproof seal is provided for preventing ingress of moisture between the translucent layer and the reflective layer. The waterproof seal may take the form of waterproof double-sided adhesive tape situated between the translucent layer and the reflective layer. A protective transparent film may be adhered to the second face of the translucent layer in such a manner as to be readily removable from the translucent layer. The elongate light unit (14) comprises an elongate housing and an elongate printed circuit board (PCB) bearing a plurality of light emitting diodes (LEDs) spaced along the length of the PCB. The elongate housing has an elongate chamber extending along the length of the housing and a wall extending along the length of the housing and adjacent the elongate chamber. The PCB is mounted in the elongate chamber. The wall transmits light and the LEDs are orientated so that light from the LEDs passes out of the elongate chamber through the wall. The bracket has first and second adjacent slots (20, 22). The first slot (20) receives the elongate light unit (14) and an edge of the light directing unit (16). The second slot (22) receives a translucent advertising sheet (18). Light from the LEDs is emitted from the second outer face of the translucent layer in a diffuse and even manner and serves to backlight the translucent advertising sheet (18).，下面是ILLUMINATED ADVERTISING BOARDS AND COMPONENTS THEREOF专利的具体信息内容。
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