| 摘要 |
An illuminable key or pushbutton assembly for electric and electronic mechanisms includes a key-support base member, a cover portion made of translucent or transparent material which is sized to entirely cover the key-support base member, and an electroluminescent sheet mounted on the key-support base member and disposed between the key-support base member and the cover. The electroluminescent sheet is connected to means for providing an electric current, such as a contact on the mechanism itself. The electric current triggers the electroluminescent sheet and causes a luminic release, and the luminic release thereby illuminates the cover portion so that an observer can determine the position and location of the key or pushbutton assembly, as well as the electric or electronic mechanism. In a preferred form, the assembly includes a semi-opaque, exchangeable mask disposed between the electroluminescent sheet and the cover. The mask is positioned to block a portion of the luminic release visible to the observer and can include drawings, such as symbols, for locating or identifying the mechanism in an environment having limited visibility for the observer.
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