Nippon Electric Glass Co., Ltd.

Tamio Ando

Tadahito Furuyama

Shunsuke Fujita

Takahiro Matano

Masaaki Kadomi

Naoki Fujita

Masaru Iwao

Hiroyuki Shimizu

Yoshihisa Takayama

Provided is a glass that is used in a phosphor-containing wavelength conversion material and from which can be produced a wavelength conversion member less degraded in characteristics of a phosphor owing to firing during production of the wavelength conversion member and having excellent weather resistance. The glass is for use in a wavelength conversion material and contains, in terms of % by mass, 30 to 75% SiO, 1 to 30% BO, over 4 to 20% AlO, 0.1 to 10% LiO, 0 to below 9% NaO+KO, and 0 to 10% MgO+CaO+SrO+BaO+ZnO.

Glass for use in wavelength conversion material, wavelength conversion material, wavelength conversion member, and light-emitting device

Provided are nanophosphor-attached inorganic particles that can suppress the degradation of the nanophosphor when sealed in glass, and a wavelength conversion member using the nanophosphor-attached inorganic particles. The nanophosphor-attached inorganic particleinclude: inorganic particleshaving an average particle diameter of 1 &#x3bc;m or more; and a nanophosphorattached to surfaces of the inorganic particles

Nanophosphor-attached inorganic particles and wavelength conversion member

Provided are an inorganic fluorescent nanoparticle composite that can suppress the degradation of inorganic fluorescent nanoparticles when sealed in glass and a wavelength conversion member using the inorganic fluorescent nanoparticle composite. An inorganic fluorescent nanoparticle compositeis made up by including: an inorganic fluorescent nanoparticle; and an inorganic fine particledeposited on a surface of the inorganic fluorescent nanoparticle

Inorganic nano fluorescent particle composite and wavelength converting member

Provided is a luminescent wheel for a projector, which has a novel structure in which a phosphor layer is hard to break even if its thickness is reduced; a manufacturing method therefor; and a light emitting device for a projector. A luminescent wheel for a projector includes: a phosphor layer () which has a first principal surface () and a second principal surface () located on an opposite side to the first principal surface () and is capable of being excited by the entry of excitation light to emit fluorescence; a first glass layer () provided on the first principal surface () of the phosphor layer (); and a second glass layer () provided on the second principal surface () of the phosphor layer ().

Projector-use luminescent wheel and manufacturing method therefor, and projector-use light emitting device

Provided is a wavelength conversion member capable of reducing the decrease in luminescence intensity with time and the melting of a component material when irradiated with light of a high-power LED or LD and providing a light emitting device using the wavelength conversion member. The wavelength conversion member () includes a laminate that includes: a phosphor layer (); and light-transmissive heat dissipation layers () formed on both surfaces of the phosphor layer () and having a higher thermal conductivity than the phosphor layer ().

Wavelength conversion member and light emitting device using same

Provided is a fluorescent wheel for a projector capable of suppressing the heating of the phosphor layer and a light emitting device for a projector using the same. The fluorescent wheel for a projector includes: a phosphor layer (); an annular ceramic substrate () which includes a first principal surface provided with the phosphor layer () and a second principal surface located on an opposite side to the first principal surface and has a higher thermal conductivity than the phosphor layer (); and a reflective layer () provided on the second principal surface of the ceramic substrate ().

Growing community of inventors

Otsu, Japan

Tamio Ando