Illuminant pointer needle assembly for vehicular instrument

Details Illuminant pointer needle assembly for vehicular instrument Illuminant pointer needle assembly for vehicular instrument

1990-10-23

1992-08-25

Lazarus, Ira S.

Illumination

Illuminated scale or dial

Internal light source

362 26, 362 31, 362 32, 116288, 116DIG36, G01D 1128

Patent

active

051424533

ABSTRACT:
Described herein is an illuminant pointer needle assembly for a vehicular instrument, which is adapted to display the index portion of a pointer needle in the color of a coloring layer applied on the surface of the index portion in the day time, in a color of illumination of a light-emitting element in the nighttime when the pointer needle is lighted up, and in a mixture color in the dusk by superposing the color of illumination of the color of coloring layer reflecting incident external light. The pointer assembly essentially includes: a pointer needle having a base end portion fixedly mounted on a pointer needle shaft of a movement unit of a meter or the like and provided with a transparent index portion; a coloring layer formed on the bottom surface of the transparent index portion to reflect incident external light; a light-emitting element fixedly mounted on the base end portion of the pointer needle to light up the index portion in a color different from that of the coloring layer.

REFERENCES:
patent: 4163428 (1979-08-01), Ishikawa
patent: 4215647 (1980-08-01), Fukasawa
patent: 4218726 (1980-08-01), Fukasawa et al.
patent: 4257084 (1981-03-01), Reynolds
patent: 4300470 (1981-11-01), Furukawa
patent: 4625262 (1986-11-01), Sakakibara et al.
patent: 4845595 (1989-07-01), Fujii et al.
patent: 4872415 (1989-10-01), Nakadozon et al.

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