Koito Manufacturing Company, Ltd.

Tokyo Institute of Technology

Nagoya University

Other

Hisayoshi Daicho

Yu Shinomiya

Kiminori Enomoto

Yasuaki Tsutsumi

Takeshi Iwasaki

Shogo Sugimori

Takaaki Komatsu

Hiroshi Sawa

Shinobu Aoyagi

Hideo Hosono

Hitoshi Takeda

Tatsuya Matsuura

Osamu Kuboyama

Masanobu Mizuno

Hideki Tanaka

Yasutaka Sasaki

Satoru Matsuishi

Yuji Yoshimoto

Hidekazu Hayama

Kazuhiro Ito

Akitoshi Nakano

Hajime Yamamoto

Yasuo Nakamura

Kenji Yamada

Atsushi Nakamura

Norihiko Kobayashi

Hiroka Tanisake

Masato Gomi

Ken Kato

Yuzo Maeno

Hideki Endou

Yuji Higashi

Hiroyuki Hayashi

Manabu Iizuka

Hirokazu Yamaguchi

Yasuo Usuda

Yuichi Tsuchiya

Toshio Yagi

Yoshirou Niino

Toshi Yagi

Yoshinobu Miyamoto

Bonggoo Yun

Mutuo Masuda

Provided is a scintillator material that is excited by radiation rays to emit visible light. The scintillator material has a cristobalite structure obtained by crystallizing a part of silica. A fluorescent material SrI:Euis incorporated into the cristobalite structure to form a nanocomposite, and the cristobalite structure contains an alkali metal ion.

Scintillator material, radiation detector, and method for producing scintillator material

A method of manufacturing a scintillator material includes providing a substrate made of a quartz glass and having a recess formed therein; filling the recess with a raw material powder obtained by mixing an iodide raw material and SiOfine particles; after filling the recess, disposing a lid on the substrate to cover the recess; and after disposing the lid, heating the substrate, thereby forming a nanocomposite layer in which an iodide phosphor is introduced into a cristobalite structure.

Manufacturing method of scintillator material and scintillator material

A fluorescent member includes: a wavelength converter including an incidence part on which a light of a light source is incident and an output part from which a converted light subjected to wavelength conversion as a result of excitation by an incident light is output; and a reflecting part provided in at least a portion of a surface of the wavelength converter. The wavelength converter is comprised of a material whereby a degree of scattering of the light of the light source incident via the incidence part and traveling toward the output part is smaller than in the case of a polycrystalline material.

Fluorescent member and light-emitting module

In a phosphor according to an aspect, an emission site has a perovskite crystal structure expressed by ABX, in which A and B are each a cation and X is an anion, and an emission element is located at a B site serving as a body center of the perovskite crystal structure.

Phosphor

A scintillator material includes a matrix phase and scintillator parts dispersed in the matrix phase. The scintillator parts contain fine particles of single crystal. According to the above aspect, since the scintillator parts containing the fine particles of single crystal are dispersed in the matrix phase, it is possible to reduce an influence from an environment.

Scintillator material and radiation detector

A nanocomposite includes: a matrix phase; and a functional area disposed in the matrix phase. The functional area contains monocrystal fine particles.

Nanocomposites and method of manufacturing nanocomposites

A phosphor is represented by the general formulaMX&#xb7;MMMO:(Re)where Mis at least one atomic element selected from the group consisting of K, Li, Na, Rb, Cs, Fr, Cu, and Ag, with K being essential; Mis at least one atomic element selected from the group consisting of Mg, Ca, Sr, Ba, Ra, Mn, Zn, Cd, and Sn; Mis at least one atomic element selected from the group consisting of P, V, Nb, Ta, As, Sb, and Bi; X is at least one halogen element, with F being essential; Re is at least one atomic element selected from the group consisting of rare earth elements, with Eu being essential; and a is in the range 0.6&#x2264;a&#x2264;1.4.

A composite material includes: an apatite crystal in the form of a tube; and a functional component accommodated in the apatite crystal tube and constituted by a material having physical properties different from those of the apatite crystal. The apatite crystal may be a monocrystal given by the general formula M(PO)X, where Mdenotes at least one element selected from the group consisting of divalent alkali earth metals and Eu, and X denotes at least one element or molecule selected from the group consisting of halogens and OH.

Composite material and method of manufacturing composite material

A lamp includes a plurality of semiconductor light-emitting elements arrayed linearly, an aluminum substrate on which the plurality of light-emitting elements are mounted, and a linear light wavelength conversion member disposed separated from light-emitting surfaces of the plurality of light-emitting elements. The aluminum substrate includes a circuit formed such as to be able to switch on/off the plurality of light-emitting elements, as grouped into a plurality of sets, on a per-set basis in which the sets are composed of either one or a plurality of the light-emitting elements.

Lamp

An adsorption method adsorbs a substance by using a tube-shaped apatite crystal. The apatite crystal may be a monocrystal given by a general formula M(PO)X (Mdenotes at least one element selected from the group consisting of divalent alkali earth metal and Eu, and X denotes at least one element or molecule selected from the group consisting of halogen element and OH). The outer form of the apatite crystal may be a hexagonal prism in which the aperture of a hole formed on a top surface or bottom surface of the hexagonal prism may be hexagonal.

Adsorption method, adsorption separation method, and drug delivery carrier

An illumination device includes a light-emitting device and a diffusion member. The light-emitting device has a plurality of light-emitting elements that emit light having a peak wavelength in a wavelength region of 380 to 420 nm, a first phosphor that emits visible light having a peak wavelength in a wavelength region of 560 to 600 nm, a second phosphor that is excited by ultraviolet ray or short-wavelength visible light and emits visible light in complementary color relationship with the visible light emitted by the first phosphor, and a light-transmitting member that covers the plurality of light-emitting elements and contains the first phosphor and the second phosphor dispersed therein. The diffusion member diffuses at least a part of the light emitting from the light-emitting device.

Illumination device

A semiconductor light-emitting device has a substrate, one or more semiconductor light-emitting elements provided on the substrate, and that emit light having a peak wavelength in a 380 nm to 480 nm wavelength region, and a molded member covering the semiconductor light-emitting element, and containing a phosphor that emits visible light by being excited by the emitted light from the semiconductor light-emitting element. The molded member is formed so that index A=H/(s/n) satisfies 0.3&#x2266;A&#x2266;6, where H is the height [mm] of the molded member from the substrate, s is the square root [mm] of the contact area between the substrate and the molded member, and n is the number of the semiconductor light-emitting elements covered with the molded member.

Semiconductor light-emitting device

An apatite crystal is a single crystal expressed by a general formula (M)(PO)X. In this formula, Mindicates at least one type of element selected from the group consisting of bivalent alkaline-earth metals and Eu, and X indicates at least one type of element or molecule selected from the group consisting of halogen elements and OH. And the single crystal is of a tubular shape. The outer shape of the apatite may be a hexagonal prism. The shape of an opening of a hole formed in the upper surface or lower surface of the hexagonal prism may be a hexagon.

Apatite crystal

A phosphor has the general formula (M,M,M)MOX, wherein Mrepresents at least one element including at least Si and selected from the group consisting of Si, Ge, Ti, Zr, and Sn, Mrepresents at least one element including at least Ca and selected from the group consisting of Ca, Mg, Cd, Co, and Zn, Mrepresents at least one element including at least Sr and selected from the group consisting of Sr, Ra, Ba, and Pb, X represents at least one halogen element, Mrepresents at least one element including at least Euand selected from the group consisting of rare-earth elements and Mn, m is in the range 1&#x2266;m&#x2266;4/3, n is in the range 5&#x2266;n&#x2266;7, and x, y, and z are each in such a range as to satisfy x+y+z=1, 0.45&#x2266;x&#x2266;0.8, 0.05&#x2266;y&#x2266;0.45, and 0.45, and 0.03&#x2266;z&#x2266;0.35.

Phosphor and light-emitting device

In a light emitting module, a light wavelength conversation ceramicconverts the wavelength of the light emitted by a semiconductor light emitting elementthen emits the light. An optical filtertransmits the blue light Lb mainly emitted by the semiconductor light emitting elementand reflects the yellow light Ly whose wavelength has been mainly converted by the light wavelength conversion ceramic. The optical filteris provided on the surface of the light wavelength conversion ceramic. The light emitting moduleis manufactured by: the process where the optical filteris provided on at least one surface of the light wavelength conversion ceramic; and the process where the semiconductor light emitting elementand the light wavelength conversion ceramicare arranged such that the light emitted by the semiconductor light emitting elementis incident into the light wavelength conversion ceramic

Light emitting module, method of manufacturing the light emitting module, and lamp unit

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Shizuoka, Japan

Hisayoshi Daicho