Analog indicator with self-luminescent pointer

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

1993-03-24

1996-06-04

Gromada, Denise L.

Illumination

Illuminated scale or dial

362 84, 362294, G01D 1128

Patent

active

055239226

ABSTRACT:
An analog indicator for an automotive vehicle is provided. This indicator includes a self-luminescent indicating pointer and a dial plate on which a fluorescent layer is formed. When an input signal indicative of a indicating parameter is changed, the pointer radiates an ultraviolet ray onto the fluorescent layer on the dial plate so that it glows. An observer can thus visually identify a value indicated by the pointer or displacement of the pointer.

REFERENCES:
patent: 4841155 (1989-06-01), Ushida et al.
patent: 4991537 (1991-02-01), Muramatsu
patent: 5050045 (1991-09-01), Kato et al.
patent: 5227767 (1993-07-01), Tanaka

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