Toyoda Gosei Co., Ltd.

Toyota Jidosha Kabushiki Kaisha

Toshiaki Mori

Yoichi Matsuoka

Koichiro Endo

Yosuke Tsuchiya

Hiroyuki Tajima

Motoyuki Tanaka

Yukihiko Umeda

Makoto Ishida

Isamu Masakawa

Atsushi Kumo

Akiko Kimura

Shota Katsuno

Hiroyuki Asano

Akinori Ushijima

Jota Kusakari

A lighting device includes a first light source portion, a light guide that includes a light guide body with an elongated shape, guides light incident from the first light source portion in a longitudinal direction of the elongated shape, and emits a first light including the guided light to illuminate an illuminated object, and a second light source portion that emits a second light to illuminate the illuminated object. The second light source portion is provided independently of the first light source portion and the light guide.

Lighting device

A lighting device includes a light source unit that outputs light, an elongated light guide including a first end surface on which the light is incident, a second end surface located opposite to the first end surface, an emitting surface, and at least one held portion provided on at least one of the longitudinal side surfaces different from the emitting surface, the light guide guiding the light from the first end surface to the second end surface, and a housing including an attachment portion to which the light source unit is attached, a housing portion that is open at an end portion on the attachment portion side and includes a housing recess to house the light guide and an exposure opening exposing the emitting surface, and a holding portion that holds the light guide in the housing recess by sandwiching the at least one held portion.

Lighting device with elongated light guide, housing and attachments thereof

A light guide includes a rod-shaped first light guide portion including a prism surface including a prism to reflect internally propagating light and output the light to an outside along a lengthwise direction thereof, a rod-shaped second light guide portion including a light intake portion to take in light from a light source, and a rod-shaped intermediate light guide portion between the first light guide portion and the second light guide portion provided such that side surfaces thereof are connected to side surfaces of the first light guide portion and the second light guide portion. A thickness of the intermediate light guide portion is smaller than a thickness of the first light guide portion and a thickness of the second light guide portion. A side surface of the intermediate light guide portion on a side of the prism surface is continuous with the prism surface in a same plane.

Light guide with multiple rod-shaped light guide portions attached to each other having a prism surface

A side view type surface mounted light-emitting device includes a submount substrate that includes a mounting surface on one side surface and end through-holes formed at both edges of the mounting surface, a light-emitting element mounted on the submount substrate, first and second flat terminals formed on the mounting surface, and first and second through-hole terminals respectively formed on inner surfaces of the end through-holes at both edges of the mounting surface. At least one of the first flat terminal and the first through-hole terminal is electrically connected to one of n-side and p-side electrodes of the light-emitting element, and at least one of the second flat terminal and the second through-hole terminal is electrically connected to the other of the n-side and p-side electrodes of the light-emitting element.

Light-emitting device

A method of manufacturing a light emitting device, includes: mounting an LED chip on a substrate; forming a translucent sealing layer for sealing the LED chip; forming a protective layer on the sealing layer; forming a groove, which penetrates the substrate and the sealing layer, using a blade from a side opposite to the side of the substrate mounted with the LED chip, the groove being formed to extend to a lower surface or an inside of the protective layer; filling the groove with a reflector material; and removing and separating a portion of the protective layer in which at least the groove is formed, wherein the blade has a shape tapered toward an edge.

Method of manufacturing light emitting device

A light-emitting device includes a face-up type LED chip formed rectangular in a top view, and a rectangular parallelepiped-shaped sealing portion to seal the LED chip. An angle formed between a side surface of the LED chip and a side surface of the sealing portion in the top view is 45&#xb1;13&#xb0;, and a portion of light emitted from the LED chip is emitted from the side surface of the sealing portion.

Growing community of inventors

Kiyosu, Japan

Toshiaki Mori