Abstract:
A semiconductor light emitting device includes a substrate, a common conductive portion formed on the substrate, a semiconductor light emitting element mounted on the common conductive portion, and an electronic component mounted on the common conductive portion and electrically connected to the semiconductor light emitting element by the common conductive portion. This structure shortens the conductive path between the semiconductor light emitting element and the electronic component, thereby reducing capacitance caused by the conductive path between the semiconductor light emitting element and the electronic component. Thus, while reducing parasitic capacitance, the semiconductor light emitting element and the electronic component are electrically connected.
Abstract:
An optical device includes a light-emitting unit and a light-receiving unit. The light-emitting unit emits light forward in a first direction. The light-emitting unit has a light-emitting-side through hole that causes light traveling backward in the first direction to pass through. The light-receiving unit is arranged backward in the first direction relative to the light-emitting unit. The light-receiving unit has a light receiver that receives light after the light has passed through the light-emitting-side through hole.
Abstract:
An LED lighting apparatus of the invention includes a substrate having a length in a first direction and a width in a second direction. LED chips are supported on the substrate along the first direction. A light guide, having a thickness in the second direction, includes an incident surface, a reflective surface and an emitting surface. The incident surface faces in a third direction perpendicular to the first and second directions for receiving light emitted from the LED chips. The reflective surface spreads in the first and third directions and reflects light from the incident surface in the second direction. The emitting surface spreads in the first and third directions and allows light from the reflective surface to exit. The substrate is supported by a case that includes side plates around the light guide and a bottom plate connecting the side plates.
Abstract:
A light emitting device includes a light emitting element, a wire connected to the light emitting element, and a substrate supporting the light emitting element. The substrate is formed with a first recess and a second recess that are open in a common surface of the substrate. The first recess includes a first bottom surface and a first side surface connected to the first bottom surface, and the light emitting element is disposed on the first bottom surface. The second recess includes a second bottom surface and a second side surface connected to the second bottom surface, and the wire is bonded to the second bottom surface. Both of the first side surface and the second side surface reach the common surface. The first side surface is connected to both of the second bottom surface and the second side surface. The opening area of the first recess is larger than the opening area of the second recess.
Abstract:
A light emitting device includes a light emitting element, a wire connected to the light emitting element, and a substrate supporting the light emitting element. The substrate is formed with a first recess and a second recess that are open in a common surface of the substrate. The first recess includes a first bottom surface and a first side surface connected to the first bottom surface, and the light emitting element is disposed on the first bottom surface. The second recess includes a second bottom surface and a second side surface connected to the second bottom surface, and the wire is bonded to the second bottom surface. Both of the first side surface and the second side surface reach the common surface. The first side surface is connected to both of the second bottom surface and the second side surface. The opening area of the first recess is larger than the opening area of the second recess.
Abstract:
A light emitting device includes a light emitting element, a wire connected to the light emitting element, and a substrate supporting the light emitting element. The substrate is formed with a first recess and a second recess that are open in a common surface of the substrate. The first recess includes a first bottom surface and a first side surface connected to the first bottom surface, and the light emitting element is disposed on the first bottom surface. The second recess includes a second bottom surface and a second side surface connected to the second bottom surface, and the wire is bonded to the second bottom surface. Both of the first side surface and the second side surface reach the common surface. The first side surface is connected to both of the second bottom surface and the second side surface. The opening area of the first recess is larger than the opening area of the second recess.
Abstract:
A light-emitting module is provided with a light-emitting element, a base, and a wiring pattern. The base includes an installation surface facing in a first direction and a mounting surface facing in a second direction which is at right angles to the first direction. The light-emitting element is installed on the installation surface. The wiring pattern is formed on the base and is in electrical contact with the light-emitting element. The base includes a pair of mounting recesses recessed from the mounting surface and spaced from each other in a third direction which is at right angles to both the first direction and the second direction. The wiring pattern includes a pair of mounting-surface electrodes respectively covering at least a part of the pair of mounting recesses.