| 摘要 |
A sign (10) includes a sign housing (16) defining an internal cavity (32). The sign housing (16) includes front and rear faces (18, 20) having indicia or an instruction thereon and slotted apertures (22) defining the indicia. A lens housing (60) is secured within the cavity (32) and includes raised surface portions (26) which protrude through the slotted apertures (22). Light emitting diodes (28) are positioned within the lens 15 housing (60) to illuminate the indicia. The sign housing (16) and lens housing (60) are sealed to protect the LEDs (28).
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