| CPC F21S 43/31 (2018.01) [F21S 41/192 (2018.01); F21S 41/32 (2018.01); F21S 41/37 (2018.01); F21S 43/195 (2018.01); F21S 43/33 (2018.01); F21S 45/47 (2018.01); F21S 45/50 (2018.01); H10H 20/856 (2025.01); F21Y 2115/10 (2016.08); H10H 20/857 (2025.01)] | 7 Claims |
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1. A vehicle lighting device, comprising:
a socket;
a substrate provided on one end side of the socket;
a light-emitting element provided on the substrate;
a frame part provided on the substrate and surrounding the light-emitting element;
a sealing part provided on an inner side of the frame part so as to cover the light-emitting elements;
a reflection part provided on the substrate and between a side surface of the light-emitting element and an inner wall of the frame part; and
a wiring wire that electrically connects an upper electrode of the light-emitting element and a wiring pattern provided on the substrate,
wherein an upper surface of the reflection part is a concave curved surface that protrudes toward the substrate, and
wherein the reflection part is provided on a joint part between the wiring wire and the wiring pattern, and
wherein at least one of:
a linear expansion coefficient of the material of the reflection part is smaller than a linear expansion coefficient of a material of the sealing part, and
a Young's modulus of the material of the reflection part is smaller than a Young's modulus of the material of the sealing part.
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