Toyoda Gosei Co., Ltd.

Toyota Jidosha Kabushiki Kaisha

Koichiro Endo

Yoichi Matsuoka

Toshiaki Mori

Yukihiko Umeda

Isamu Masakawa

Jota Kusakari

Shota Katsuno

Hiroyuki Asano

Akinori Ushijima

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

An illuminating device includes a light source having a light-source optical axis, a lens that is located substantially parallel to the light-source optical axis such that a surface of the lens faces the light-source optical axis, the lens extending to a position rearward of the light source in a direction of the light-source optical axis, and a light reflecting portion located so as to be opposed to a front side of the light source, the light reflecting portion being adapted to reflect emitted light of the light source obliquely rearward of the light source, and reflect the emitted light toward the lens.

Growing community of inventors

Kiyosu, Japan

Koichiro Endo