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US 4,559,582 AGranted
Indicator illuminated with electroluminescent lighting
AssigneeAllied Corporation
InventorsA. Vincent Scardilli, Alfred L. Levine
Life of this patent
Estimating the term…
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AssigneeAllied Corporation
InventorsA. Vincent Scardilli, Alfred L. Levine
Estimating the term…
A moveable pointer (15) on an indicator (11) is illuminated by use of at least one electroluminescent strip (21) which is mounted separately from the pointer (15). The pointer (15) is able to conduct light internally in such a way that light transmitted to one portion (23) of the pointer (15) illuminates another portion of the pointer (25). The electroluminescent strip (21) forms a light source for the pointer (15) so that the strip (21) may be mounted adjacent the pointer's hub (23) in order to provide the necessary illumination. This arrangement permits an indicator (11) to be illuminated with electroluminescent lighting in order that passive vision aids, such as night vision goggles, may be used, while providing sufficient illumination for the indicator's dial pointer (15).
Electroluminescent lighting means for illuminating an indicator which moves relatively to a graduated scale, characterized by:
Dial indicator having a graduated scale and a pointer which rotates substantially about an axis to move relative to the graduated scale, in which the dial indicator is illuminated so as to indicate a position of the dial indicator with respect to the scale, characterized in that:
Dependencies are inferred from the claim text.