Koito Manufacturing Company, Ltd.

Tomoyuki Nakagawa

Akihiro Matsumoto

Tetsuya Suzuki

Atsushi Ozawa

Naoki Sone

Takashi Inoue

Tsutomu Machida

Akitaka Kanamori

Ryota Naito

Hiroki Fujimura

Takayuki Saito

Kaname Miyagishima

A light source unit includes a light emitting element which functions as a light source, a wiring pattern on which the light emitting element is mounted, an electrode pad connected to the wiring pattern, a substrate on which the wiring pattern is formed and the electrode pad is mounted, a power supply body which supplies external power to the electrode pad, and a socket housing which has an engaging portion engaged with a predetermined member and holds the substrate, the light emitting element and the power supply body. The power supply body has a terminal holding portion formed of an insulating resin material and a connection terminal supported by the terminal holding portion and connected to an external power supply. The connection terminal and the electrode pad are connected to each other by a conduction connecting part.

Light source unit and vehicle lamp fitting

Provided is a light emitting module in which an LED device is mounted and power is supplied to the LED device by a gold wire. The light emitting module includes a first resin (sealing material) that seals the gold wire and a second resin (dam wall) that surrounds at least a portion of the outer peripheral of the first resin. The first resin has a lower viscosity and a lower elastic modulus compared to the second resin, and protects the gold wire mechanically and chemically. The second resin suppresses the first resin from being flowed out toward the peripherals, and, as a result, the sealing state of the gold wire by the first resin may be maintained.

Light emitting module, method for manufacturing light emitting module, and vehicular lamp

A light source unit of one embodiment includes a socket housing, a light emitting module, a substrate, a sealing part, and a lens part. The sealing part seals the light emitting element and the conductive part to the substrate. A lens part is formed on the sealing part. Alastic modulus of the lens part is higher than that of the sealing part.

Light source unit with light emitting module, sealing part and lens part

A light-emitting apparatus is provided with: a light-emitting module; a control circuit unit configured to control the lighting of the light-emitting module; a heat-radiating substrate configured to support the light-emitting module and the control circuit unit in such a manner as to recover the heat produced by the light-emitting module and the control circuit unit; and a connection support unit mounted on the heat-radiating substrate in such a state as to support an electrically conductive member by which to electrically connect the light-emitting module and the control circuit unit.

Light-emitting apparatus and automotive headlamps

A circuit module includes: a lighting control circuit that controls lighting of a semiconductor light emitting element; a first heat radiating member on which the lighting control circuit is mounted; a second heat radiating member that is separated from the first heat radiating member and has a surface on which the semiconductor light emitting element is mounted; and a connecting mechanism having both a housing that connects the first heat radiating member and the second heat radiating member together and a conductive portion that transmits a signal from the lighting control circuit to the semiconductor light emitting element. The housing is formed of a material having a coefficient of thermal conductivity lower than those of the first heat radiating member and the second heat radiating member.

Circuit module, light emitting module, and automotive lamp

A vehicle headlamp includes: a light-emitting module; a control circuit section for controlling a lighting of the light-emitting module; and a reflector including a reflecting face configured to reflect and collect light emitted from the light-emitting module. The control circuit section includes an opposing portion that is opposed to the reflecting face. The opposing portion is disposed at a position away from an optical path of light to be collected by the reflector.

Vehicle headlamp

An automotive headlamp is provided with: a light-emitting module; a control circuit unit configured to control the lighting of the light-emitting module; a support substrate configured to support both the light-emitting module and the control circuit unit; and a reflector configured to reflect, through an inner surface of the reflector, light emitted by the light-emitting module and collect the reflected light. The support substrate is arranged in a manner such that the control circuit unit is positioned in a region outside the reflector.

Automotive headlamps

In a light emitting module, a semiconductor light emitting element is mounted on a mounting board. A plated layer is provided on the surface of the mounting board so as to be electrically connected to the semiconductor light emitting element mounted on the mounting board. The plated layer has a power feeding portion and an element connection portion. The power feeding portion extends, of the surfaces of the mounting board, from the upper surface on which the semiconductor light emitting element is to be mounted to a stepped surface located below the upper surface, so that power can be fed, on the stepped surface, to the semiconductor light emitting element. The element connection portions are provided on the upper surface such that a plurality of the semiconductor light emitting elements mounted on the upper surface are connected together in series.

Growing community of inventors

Shizuoka, Japan

Tomoyuki Nakagawa