Panasonic Intellectual Property Management Co., Ltd.

Panasonic Corporation

Matsushita Electric Industrial Co., Ltd.

Yoshihisa Nagasaki

Takashi Ohbayashi

Seigo Shiraishi

Takahiro Hamada

Kojiro Okuyama

Yukihiko Sugio

Kazuhiko Sugimoto

Junichi Hibino

Kiyoshi Morimoto

Kazuhiko Yamanaka

Mitsuru Nitta

Yuichiro Miyamae

Keiji Horikawa

Nobuyuki Shigetoh

Izumi Toyoda

Osamu Inoue

Yuji Miyachi

Kazuma Mima

Nobuaki Nagao

Nobuyasu Suzuki

Masahiro Sakai

Yuki Ueda

Hitoshi Ishimoto

Kazuya Yamasaki

Takashi Kawasaki

Masayuki Hogiri

Koji Yokoyama

Shinji Kondou

Shozo Oshio

Atsushi Motoya

Nobumitsu Aibara

Toshio Mori

Takashi Maniwa

Kenta Watanabe

Naoyuki Tani

Kazuhiro Matsuo

Ran Zheng

Sachiko Azuma

Yusuke Ogihara

Masaaki Akamatsu

An electrolytic capacitor includes an anode body, a dielectric layer covering the anode body, a first solid electrolyte layer covering the dielectric layer, and a second solid electrolyte layer covering the first solid electrolyte layer. The first solid electrolyte layer contains a first conductive polymer including polythiophene as a basic skeleton. The second solid electrolyte layer contains a second conductive polymer including polypyrrole as a basic skeleton. A conductivity of the first solid electrolyte layer is less than or equal to 2 S/cm.

Electrolytic capacitor and method for producing same

An electrolytic capacitor includes an anode body, a dielectric layer that covers the anode body, a first solid electrolyte layer that covers the dielectric layer, and a second solid electrolyte layer that covers the first solid electrolyte layer. The first solid electrolyte layer contains a first conductive polymer that includes polypyrrole as a basic skeleton. The second solid electrolyte layer contains a second conductive polymer that includes polythiophene as a basic skeleton. The second solid electrolyte layer has a thickness of 1 μm or more.

A conductive paste for an electrolytic capacitor used for connecting a cathode part and a cathode lead terminal of the electrolytic capacitor. The conductive paste includes a thermosetting resin, and conductive particles, and the conductive particles include flaky metal particles and acicular conductive particles. The content of the conductive particles in the conductive paste is, for example, 50 mass % or more and 70 mass % or less, and the mass ratio of the flaky metal particles to the total of the flaky metal particles and the acicular conductive particles is, for example, 60% or more and 80% or less.

Electrically conductive paste for electrolytic capacitor, and electrolytic capacitor

Provided is a wavelength conversion member capable of improving brightness of a light source device. Wavelength conversion member according to the present disclosure includes: first phosphor layer that is disposed on an incidence side where excitation light enters, and contains a plurality of first phosphor particles; and second phosphor layer that is disposed on a side reverse to the incidence side and contains a plurality of second phosphor particles. First phosphor particles include an activation component, second phosphor particles include an activation component same as or different from the activation component included in first phosphor particles, and a concentration of the activation component in first phosphor layer is lower than a concentration of the activation component in second phosphor layer.

Wavelength conversion member, light source device using same, projector and vehicle

A wavelength conversion device includes a matrix containing inorganic material, a phosphor embedded in the matrix, and filler particles embedded in the matrix and containing resin material. This wavelength conversion device prevents the phosphor from falling.

Wavelength conversion member, optical device, projector, and manufacturing method for wavelength conversion member

A wavelength conversion device includes a substrate, a matrix supported by the substrate and containing inorganic material, a phosphor embedded in the matrix, and filler particles embedded in the matrix. A linear expansion coefficient of the filler particles is equal to or larger than 25 ppm/K and equal to or smaller than 790 ppm/K, and is larger than a linear expansion coefficient of the matrix. This wavelength conversion device suppresses warping of the substrate.

Wavelength conversion member, optical device, and projector

A wavelength conversion device of the present disclosure includes a substrate, a phosphor layer that has a matrix containing zinc oxide and phosphor particles embedded in the matrix and that is supported by the substrate, a dielectric layer disposed between the substrate and the phosphor layer, and a protective layer that is disposed between the phosphor layer and the dielectric layer and that has an isoelectric point equal to or larger than 7. A main surface of the substrate includes, for example, first and second regions. The phosphor layer covers, for example, only the first region out of the first and second regions.

Wavelength conversion member, light source, illumination device, and method for manufacturing wavelength conversion member

A light source device includes: an excitation light source that emits excitation light having an energy density of 10 W/mmor more; and a phosphor layer that has phosphor particles embedded in the matrix. The phosphor particles include at least one selected from the group consisting of metal oxides represented by a following formula (1) and metal oxides represented by a following formula (2).YRCeAlGaO&#x2003;&#x2003;(1)YRCeAlScO&#x2003;&#x2003;(2) In the formula (1), Rincludes at least one selected from the group consisting of Gd and Tb, and x, y, and zsatisfy 0.003&#x2264;x&#x2264;0.03, 0&#x2264;y&#x2264;2.1, and 0&#x2264;z&#x2264;2.2, respectively. In the formula (2), Rincludes at least one selected from the group consisting of Gd and Tb, and x, y, and zsatisfy 0.003&#x2264;x&#x2264;0.03, 0&#x2264;y&#x2264;2.1 and 0&#x2264;z&#x2264;1.5, respectively.

Light source device, projector, and vehicle

A wavelength conversion member of the present disclosure includes a first matrix, phosphor particles embedded in the first matrix, and at least one selected from the group consisting of first filler particles embedded in the first matrix and surface coating layers respectively covering surfaces of the phosphor particles. The wavelength conversion member satisfies at least one relationship selected from the group consisting of |n&#x2212;n|&#x3e;|n&#x2212;n| and |n&#x2212;n|&#x3e;|n&#x2212;n| wherein nis a refractive index of the first matrix, nis a refractive index of the phosphor particles, nis a refractive index of the first filler particles, and nis a refractive index of the surface coating layers.

Wavelength conversion member, light source and lighting device

A phosphor includes, as a main component, a compound represented by a general formula (3-a)YO.aCeO.(5-b)AlO.bGaO.cKO.dPO, where a, b, c and d satisfy 0.12&#x2264;a&#x2264;0.18, 1.50&#x2264;b&#x2264;3.00, 0.01&#x2264;c&#x2264;0.08, and 0.01&#x2264;d&#x2264;0.08.

Phosphor, method of producing same, and light-emitting device

A wavelength conversion member comprises: a substrate; and a wavelength conversion layer. The wavelength conversion layer contains a first phosphor and a second phosphor. The second phosphor has a higher thermal conductivity than the first phosphor. In the wavelength conversion layer, a volume of the second phosphor is larger than a volume of the first phosphor. The wavelength conversion layer includes a first portion and a second portion. The first portion is located closer to the substrate than the second portion, and is in direct contact with the second portion. Thicknesses of the first portion and the second portion are equal to each other. A volume V11 of the first phosphor in the first portion, a volume V12 of the second phosphor in the first portion, a volume V21 of the first phosphor in the second portion, and a volume V22 of the second phosphor in the second portion satisfy V11/V12&#x3c;V21/V22.

Wavelength conversion member including phosphor

A light source includes a semiconductor light emitting device; and a wavelength converter. The wavelength converter includes: a substrate; a phosphor layer disposed on the substrate; and a light reflective layer disposed on the substrate so as to surround the phosphor layer. The phosphor layer includes phosphor particles and a first matrix material in which the phosphor particles are dispersed. The light reflective layer includes inorganic compound particles and a second matrix material in which the inorganic compound particles are dispersed. The inorganic compound particles have a refractive index higher than that of the first matrix material. The first matrix material has a refractive index higher than that of the phosphor particles. The phosphor particles have a refractive index higher than that of the second matrix material.

Light source including wavelength converter

A wavelength conversion member, comprises: a substrate; a first wavelength conversion layer on the substrate, the first wavelength conversion layer containing a first phosphor and a first matrix; and a second wavelength conversion layer containing a second phosphor, first inorganic particles, and a second matrix. The first phosphor and the second phosphor convert at least part of the excitation light incident on the second main surface into first light having longer wavelengths than the excitation light. The first light is emitted from the second main surface of the second wavelength conversion layer. A volume Vp1 of the first phosphor, a volume Vw1 of the first wavelength conversion layer, a volume Vp2 of the second phosphor, and a volume Vw2 of the second wavelength conversion layer satisfy Vp1/Vw1&#x3e;Vp2/Vw2.

Wavelength conversion member including phosphor that converts light from semiconductor light-emitting element into longer-wavelength light

A wavelength converter comprises: phosphor particles; and a matrix that is located between the phosphor particles and comprises zinc oxide crystallites. Pores are included in at least one of the zinc oxide crystallites.

Wavelength converter containing phosphor particles

The present disclosure aims to enhance controllability of a lighting apparatus and increase durability. A lighting apparatus includes a light source; a condenser that converges first light emitted from the light source onto a predetermined focal position of a wavelength conversion element as converged light; the wavelength conversion element that receives the converged light and emits second light at an emission point; and a projection lens that projects the second light as projection light. The lighting apparatus changes the focal position of the condenser lens to change the emission point of the second light to the projection lens, thereby being capable of projecting the second light in any direction.

Lighting apparatus having electrodes that change the focal position on a wavelength conversion element, vehicle having the same and method of controlling the same

Growing community of inventors

Osaka, Japan

Yoshihisa Nagasaki