Vehicle instrument
View Patent ↗A vehicle instrument includes: a three-dimensional object which is formed of a light transmitting material and is formed so as to protrude from a surface displaying a measurement value involved with a vehicle; and a light source which emits light to the three-dimensional object, wherein the three-dimensional object includes a portion having a different protrusion amount from a light incident surface to which light emitted from the light source is incident, and the light incident surface of the portion having a relatively small protrusion amount from the light incident surface is provided with a high-diffusion portion having a relatively large diffusion degree for the incident light compared with the light incident surface of the portion having a relatively large protrusion amount from the light incident surface.
1. A vehicle instrument comprising:
a three-dimensional object which is formed of a light transmitting material and is provided so as to protrude from a surface displaying a measurement value involved with a vehicle; and
a light source configured to emit light to the three-dimensional object, wherein
the three-dimensional object includes a portion having a different protrusion amount from a light incident surface to which light emitted from the light source is incident, and the light incident surface of a portion having a relatively small protrusion amount from the light incident surface is provided with a high-diffusion portion having a relatively large diffusion degree for the incident light compared with the light incident surface of a portion having a relatively large protrusion amount from the light incident surface.
2. The vehicle instrument according to claim 1 , wherein
the high-diffusion portion is formed so that a surface roughness of the light incident surface of the portion having a relatively small protrusion amount from the light incident surface is relatively larger than the surface roughness of the light incident surface of the portion having a relatively large protrusion amount from the light incident surface.
3. The vehicle instrument according to claim 2 , wherein
the high-diffusion portion is composed of a grained surface.
4. The vehicle instrument according to claim 3 , wherein
the three-dimensional object is a plurality of protrusion-shaped scales provided so as to correspond to the measurement value and indicated by an indicating needle.
5. The vehicle instrument according to claim 4 , further comprising:
a light guide body configured to guide light emitted from the light source to the three-dimensional object, wherein
the three-dimensional object and the light guide body are integrally formed of dark-color semi-transparent material.
6. The vehicle instrument according to claim 3 , further comprising:
a light guide body configured to guide light emitted from the light source to the three-dimensional object, wherein
the three-dimensional object and the light guide body are integrally formed of dark-color semi-transparent material.
7. The vehicle instrument according to claim 6 , further comprising:
a dial plate configured to cover a surface opposite to the light source of the light guide body, wherein
at least a part of the three-dimensional object is located at the opposite side to the light guide body of the dial plate.
8. The vehicle instrument according to claim 2 , wherein
the three-dimensional object is a plurality of protrusion-shaped scales provided so as to correspond to the measurement value and indicated by an indicating needle.
9. The vehicle instrument according to claim 8 , further comprising:
a light guide body configured to guide light emitted from the light source to the three-dimensional object, wherein
the three-dimensional object and the light guide body are integrally formed of dark-color semi-transparent material.
10. The vehicle instrument according to claim 2 , further comprising:
a light guide body configured to guide light emitted from the light source to the three-dimensional object, wherein
the three-dimensional object and the light guide body are integrally formed of dark-color semi-transparent material.
11. The vehicle instrument according to claim 10 , further comprising:
a dial plate configured to cover a surface opposite to the light source of the light guide body, wherein
at least a part of the three-dimensional object is located at the opposite side to the light guide body of the dial plate.
12. The vehicle instrument according to claim 1 , wherein
the high-diffusion portion is composed of a grained surface.
13. The vehicle instrument according to claim 12 , wherein
the three-dimensional object is a plurality of protrusion-shaped scales provided so as to correspond to the measurement value and indicated by an indicating needle.
14. The vehicle instrument according to claim 13 , further comprising:
a light guide body configured to guide light emitted from the light source to the three-dimensional object, wherein
the three-dimensional object and the light guide body are integrally formed of dark-color semi-transparent material.
15. The vehicle instrument according to claim 12 , further comprising:
a light guide body configured to guide light emitted from the light source to the three-dimensional object, wherein
the three-dimensional object and the light guide body are integrally formed of dark-color semi-transparent material.
16. The vehicle instrument according to claim 15 , further comprising:
a dial plate configured to cover a surface opposite to the light source of the light guide body, wherein
at least a part of the three-dimensional object is located at the opposite side to the light guide body of the dial plate.
17. The vehicle instrument according to claim 1 , wherein
the three-dimensional object is a plurality of protrusion-shaped scales provided so as to correspond to the measurement value and indicated by an indicating needle.
18. The vehicle instrument according to claim 17 , further comprising:
a light guide body configured to guide light emitted from the light source to the three-dimensional object, wherein
the three-dimensional object and the light guide body are integrally formed of dark-color semi-transparent material.
19. The vehicle instrument according to claim 1 , further comprising:
a light guide body configured to guide light emitted from the light source to the three-dimensional object, wherein
the three-dimensional object and the light guide body are integrally formed of dark-color semi-transparent material.
20. The vehicle instrument according to claim 19 , further comprising:
a dial plate configured to cover a surface opposite to the light source of the light guide body, wherein
at least a part of the three-dimensional object is located at the opposite side to the light guide body of the dial plate.