Illuminated indicator for an indicating instrument

Details Illuminated indicator for an indicating instrument Illuminated indicator for an indicating instrument

1998-08-03

2000-09-19

Tso, Laura K.

Illumination

Illuminated scale or dial

Edge illuminated modifier or light rod/pipe

116288, 116 48, F21V 800

Patent

active

061201588

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: 4256084 (1981-03-01), Reynolds
patent: 4625262 (1986-11-01), Sakakibara et al.
patent: 4860170 (1989-08-01), Sakakibara et al.
patent: 5078079 (1992-01-01), Ohta
patent: 5142453 (1992-08-01), Ohta et al.
patent: 5319527 (1994-06-01), Murphy et al.
patent: 5320062 (1994-06-01), Masuda et al.
patent: 5414595 (1995-05-01), Oike et al.
patent: 5458082 (1995-10-01), Cookingham

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