Illuminant pointer needle assembly for vehicular instrument
First Claim
1. An illuminant pointer needle assembly for a vehicular instrument, comprising:
- a pointer needle having a base end portion fixedly mounted on a pointer needle shaft of a movement unit and provided with a transparent index portion;
a layer of a selected color formed on a bottom surface of the transparent index portion selectively reflecting incident external white light and to illuminate the transparent index portion in the selected color; and
a light-emitting element having a light-emitting diode and being fixedly mounted on the base end portion of said pointer needle, said light-emitting element formed so as to emit light of a first single wavelength range which is totally reflective to the bottom surface of the transparent index portion and thereby to light up the transparent index portion in a color according to the first single wavelength range and different from the selected color when the external white light is incident upon said pointer needle.
1 Assignment
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Accused Products
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.
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Citations
7 Claims
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1. An illuminant pointer needle assembly for a vehicular instrument, comprising:
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a pointer needle having a base end portion fixedly mounted on a pointer needle shaft of a movement unit and provided with a transparent index portion; a layer of a selected color formed on a bottom surface of the transparent index portion selectively reflecting incident external white light and to illuminate the transparent index portion in the selected color; and a light-emitting element having a light-emitting diode and being fixedly mounted on the base end portion of said pointer needle, said light-emitting element formed so as to emit light of a first single wavelength range which is totally reflective to the bottom surface of the transparent index portion and thereby to light up the transparent index portion in a color according to the first single wavelength range and different from the selected color when the external white light is incident upon said pointer needle. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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Specification