Koito Manufacturing Company, Ltd.

Shinko Electric Industries Co., Ltd.

Masanobu Mizuno

Yasuaki Tsutsumi

Takeshi Masuda

Tomoyuki Ichikawa

Hisayoshi Daicho

Toshiaki Tsuda

Noriko Sato

Osamu Kuboyama

Hajime Yamamoto

Mitsutoshi Higashi

Akinori Shiraishi

Takayuki Yagi

Naoki Uchida

Tsukasa Tokida

Motohiro Komatsu

Tatsuya Matsuura

Shogo Sugimori

Yasutaka Sasaki

Takaaki Komatsu

Kazuhiro Ito

Rie Arai

Takashi Onishi

Yoshinobu Miyamoto

Bonggoo Yun

A vehicle lamp includes a laser light source that is able to emit laser light and emits laser light generated by the laser light source forward from an emission end, and an optical mechanism that performs scanning with the laser light and depicts a figure in an irradiation destination.

Vehicle lamp and vehicle lamp control system

A vehicle lamp includes a laser light source that is able to emit laser light and emits laser light generated by the laser light source forward from an emission end. The vehicle lamp includes a light-shielding member that shields the emission end from light from above to at least a horizontal position in front of the emission end.

A light emitting module includes a board on which a plurality of light emitting devices are mounted, a first interconnecting section having first interconnections, one end of each of which being connected to one of an anode side and an cathode side of an associated one of the light emitting devices, a second interconnecting section having second interconnections, one end of each of which being connected to the other of the anode side and the cathode side of an associated one of the light emitting devices, and a power supply portion provided along one side of the board to receive an external power. The second interconnecting section has at least one, but less than the number of the second interconnections, collectively interconnecting portion to which another end of each of the second interconnections is connected.

Light emitting module and vehicle lamp

In a light wavelength conversion unit, a light wavelength conversion member is placed on the emission surface of a semiconductor light-emitting element. The light wavelength conversion member converts the wavelength of blue light, which has emitted from the semiconductor light-emitting element and entered from an incident surface, so as to emit yellow light and then emits the yellow light from an emission surface. A light reflection layer is provided on a lateral face in the surface of the light wavelength conversion member. Here, the lateral face excludes the incident surface and the emission surface. The light wavelength conversion member is roughened such that an average roughness Ra of the lateral face is 0.5 &#x3bc;m or above.

Light wavelength conversion unit

A light emitting device is provided with a semiconductor light emitting element and a wavelength conversion portion. The wavelength conversion portion includes an outer peripheral portion between an input surface and an output surface. The outer peripheral portion includes a first inclined part at a side of the input surface and a second inclined part at a side of the output surface. The first inclined part and the second inclined part define a projecting portion that is projected on the outer peripheral portion.

Light emitting device that includes wavelength conversion layer having outer peripheral portion having convex projecting part with light reflection layer formed thereon

In a light emission module (), a light wavelength conversion ceramic () is formed in a sheet shape which converts the wavelength of the light emitted from a semiconductor light emission element () when emitting the light. The light wavelength conversion ceramic () has a tapered plane () which is inclined to approach the semiconductor light emission element () toward the brim portion. The light wavelength conversion ceramic () is transparent and is arranged so that the light emission wavelength band after the conversion has an all ray permeability of 40% or above.

Light emission module, light emission module manufacturing method, and lamp unit

A light emitting module includes: a light emitting element including: a first light emitting surface, and second light emitting surfaces bordering the first light emitting surface; an optical wavelength conversion member that converts a wavelength of light emitted from the light emitting element, wherein the optical wavelength conversion member is plate-shaped and is disposed such that an incident surface of the optical wavelength conversion member faces the first light emitting surface; and a reflecting member disposed to face the incident surface of the optical wavelength conversion member, the reflecting member comprising a reflecting surface. The reflecting surface faces the second light emitting surfaces, and the reflecting surface is inclined such that a distance between the reflecting surface and the second light emitting surfaces is gradually increased toward the incident surface of the optical wavelength conversion member.

Light emitting module

In a plate-shaped fluorescent member configured to convert the wavelength of the light emitted by a semiconductor light emitting element, the fluorescent member is formed of an inorganic material having a refractive index of 1.5 or more and a light transmittance at the emission peak wavelength of the semiconductor light emitting element of less than 20%. A concave portion is formed, of the surfaces of the fluorescent member, on the surface on the side where the light in the semiconductor light emitting element is mainly emitted. In the fluorescent member, the light transmittance of the light having a wavelength of 380 nm to 500 nm may be less than 20%. The concave portion may be a groove. The concave portion may be a plurality of holes that are scattered.

Fluorescent member and light emitting module

A light emitting module includes: a plurality of semiconductor light emitting elements; a substrate by which the arranged plurality of semiconductor light emitting elements are supported; and a plate-shaped light wavelength conversion component that is provided so as to face the light emitting surfaces of the plurality of semiconductor light emitting elements and that converts the wavelength of the light emitted by the semiconductor light emitting element. A phosphor layer has a shielding portion formed in the boundary between respective areas facing the respective light emitting surfaces of the adjacent semiconductor light emitting elements.

Light emitting module and automotive lamp

A white light emitting device includes a semiconductor light emitting element that has a peak of an emission spectrum in a range of 370 nm to 480 nm, and at least one kind of phosphor that is excited by light emitted from the semiconductor light emitting element to emit visible light. The phosphor is represented by the formula: SrBaSiON:Eu, wherein x is in the range of 0.3&#x3c;x&#x3c;1.0, y is in the range of 0.03&#x3c;y&#x3c;0.3, and x+y is in the range of x+y&#x3c;1.0, and a vehicle lamp using the while light emitting device.

White light emitting device and vehicle lamp using the same

A light emitting module includes: light emitting elements arranged with a distance interposed therebetween, each of the light emitting elements includes: a first light emitting surface, and second light emitting surfaces bordering the first light emitting surface; optical wavelength conversion members that convert a wavelength of light emitted from corresponding light emitting elements; and a reflecting member that extends from a gap between adjacent light emitting elements to a gap between the adjacent optical wavelength conversion members so as to surround each of the light emitting elements and so as to separate the adjacent light emitting elements. The reflecting member includes reflecting surfaces that respectively face each of the second light emitting surfaces. Each of the reflecting surfaces is inclined such that a distance between the reflecting surface and the second light emitting surface that the reflecting surface faces is gradually increased toward the optical wavelength conversion member.

Growing community of inventors

Shizuoka, Japan

Masanobu Mizuno