Indicator arrangement for motor vehicles

Details Indicator arrangement for motor vehicles Indicator arrangement for motor vehicles

1987-05-28

1989-06-20

Fields, Carolyn E.

Radiant energy

Luminophor irradiation

Self-luminous article

2504621, 40543, 362 84, G09F 1320

Patent

active

048411558

ABSTRACT:
Disclosed is an indication device of a gauging apparatus comprising an indicator panel having, on its surface, indication marks including patterns and characters, and a black light source for illuminating the surface of said indicator panel to excite a phosphor. Background portions of the indicator panel other than the indication marks are printed with a phosphor-containing paint which differs in color when it is exposed to light from the black light source from when it is exposed to ordinary light unable to excite the phosphor. The indication marks are printed with a white color paint which does not contain a phosphor and the phosphor-containing paint assumes a dark color when it is exposed to the ordinary light and assumes a bright color when it is exposed to light from the black light source.

REFERENCES:
patent: 2480584 (1947-11-01), Kohlhauer et al.
patent: 2878606 (1959-03-01), Meijer
patent: 4536656 (1985-08-01), Sowa
patent: 4621306 (1986-11-01), Sell
patent: 4779166 (1988-10-01), Tanaka et al.

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