Light-emitting device and lighting apparatus

摘要

A light-emitting device includes: a board; light-emitting elements interconnected in parallel and provided above a top face of the board; light-emitting elements, one of which is connected in series with the light-emitting element and the other of which is connected in series with the light-emitting element, the light-emitting elements being interconnected in parallel; a metal pattern provided continuously under the light-emitting elements, on an undersurface of the board; and a metal pattern provided continuously under the light-emitting elements, and isolated from the first metal pattern.

主权项

1. A light-emitting device comprising:
a board; a plurality of light-emitting elements provided above a top face of the board; a first metal pattern and a second metal pattern provided on an undersurface of the board; and a wire pattern provided on the top face of the board, between adjacent light-emitting elements among the plurality of light-emitting elements, the wire pattern connecting the adjacent light-emitting elements, wherein the plurality of light-emitting elements include: a first light emitting element and a second light-emitting element interconnected in parallel; and a third light-emitting element and a fourth light-emitting element, one of which is connected in series with the first light-emitting element and the other of which is connected in series with the second light-emitting element, the third light-emitting element and the fourth light-emitting element being interconnected in parallel and provided above the top face of the board, the first metal pattern is provided continuously under the first light-emitting element and the second light-emitting element, and the second metal pattern is provided continuously under the third light-emitting element and the fourth light-emitting element, and isolated from the first metal pattern.