Analog indicator with self-luminescent pointer

Details Analog indicator with self-luminescent pointer Analog indicator with self-luminescent pointer

1994-11-16

1997-05-20

Cuchlinski, Jr., William A.

Signals and indicators

Indicators

Rotary indicator with actuating means

116286, G01D 1322

Patent

active

056303734

ABSTRACT:
A self-luminescent indicator which may be employed in a tachometer, a speedometer, or other such gauges in automotive vehicles. The self-luminescent indicator comprises an indicating pointer, a luminescent element for emitting light, and a lens. The luminescent element is disposed in the indicating pointer. The lens is arranged in the indicating pointer and includes a flat surface through which light emitted from the luminescent element enters and a corrugated surface which projects the light entering the flat surface out of the indicating pointer. With this arrangement, the indicating pointer projects the light having uniform and high brightness to an observer for improving the visibility of pointer deflection over a dial plate.

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patent: 5161872 (1992-11-01), Sasaki et al.
patent: 5211128 (1993-05-01), Katoh et al.
patent: 5372087 (1994-12-01), Kato et al.

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