Indicating instrument

Details Indicating instrument Indicating instrument

1996-11-08

1997-10-21

Basichas, Alfred

Illumination

Illuminated scale or dial

Edge illuminated modifier or light rod/pipe

362 29, 362 32, G01D 1128

Patent

active

056789130

ABSTRACT:
An indicator for use in a vehicle instrument panel has a light conductive pointer illuminated by a light emitting diode or LED. In order to provide an increased illuminating surface of the pointer, a slit is formed on a cap to extend from the outer periphery of the cap to a portion above a center of rotation of the pointer driven by a driving shaft. A fixture is connected to the driving shaft and holds a light receiving portion of the pointer at the portion above the center of rotation and the LED in the optical alignment with the pointer at a portion off an axis of the center of rotation. A balancing weight is disposed at a portion opposite the LED with respect to the driving shaft in order to keep balance of the indicator.

REFERENCES:
patent: 5078079 (1992-01-01), Ohta et al.
patent: 5142453 (1992-08-01), Ohta et al.
patent: 5319527 (1994-06-01), Murphy et al.

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