Lighting device and method manufacturing holder of lighting device

摘要

A lighting device includes a light source that includes at least one LED element and a module including a substrate on which the light source is mounted, and a holder in which at least a part of the module is arranged and held. The holder includes a cylindrical portion that includes a stepped portion and a flange of a heat conductor extending from an outer peripheral edge of the stepped portion on which the substrate is arranged, and the holder includes an insulation layer that covers at least outer peripheral surface of the cylindrical portion.

主权项

1. A lighting device, comprising:
a module comprising a substrate and a light source that comprises at least one light-emitting diode element and that is mounted on the substrate; and a holder comprising a heat conductor that is thermally connected to the at least one light-emitting diode element of the light source, and comprising an insulation layer, wherein the heat conductor comprises an annular and flat stepped portion to support the substrate of the module, and comprises a flange that extends toward a front of the lighting device from an outer peripheral edge of the annular and flat stepped portion, the insulation layer covers an outer peripheral surface of the heat conductor, the insulation layer extending from the outer peripheral surface, passing over an upper portion of the flange toward the front of the lighting device, and extending to an inner peripheral surface of the flange, and the insulating layer comprises a stepped portion at an upper end toward the front of the lighting device, the stepped portion for holding a lens that is arranged to cover the light source of the module.