Nippon Electric Glass Co., Ltd.

Hideki Asano

Takashi Murata

Masanori Wada

Hiroyuki Shimizu

Tomomichi Kunimoto

Takashi Nishimiya

Masaaki Kadomi

Akihiko Sakamoto

Provided is a method of manufacturing plate-like members whereby shape defects in the plate-like members can be prevented to increase production yield and a laminate for use in the method of manufacturing plate-like members. A method of manufacturing a plurality of plate-like members by breaking a base materialfor plate-like members into segments includes the steps of: preparing a base materialfor plate-like members having a first principal surfaceand a second principal surfaceopposed to each other; forming a breaking groovein the first principal surfaceof the base materialfor plate-like members; bonding a support filmto the second principal surfaceof the base materialfor plate-like members; bonding an adhesive filmto the first principal surfaceof the base materialfor plate-like members to cover the first principal surfaceof the base material; and breaking the base materialfor plate-like members into segments along the breaking grooveby pressing, through the support filmand with the adhesive filmbonded to the base materialfor plate-like members, a region of the base materialfor plate-like members where the breaking grooveis formed.

Method of manufacturing plate-like member and laminate

Provided is a manufacturing method for a thin phosphor glass plate by which a thin phosphor glass plate can be more certainly produced. A manufacturing method includes the steps of: preparing a phosphor glass base materialhaving a first principal surfaceand a second principal surfaceopposed to each other; placing the phosphor glass base materialon a stageand fixing the second principal surfaceonto the stage; and polishing the first principal surfaceof the phosphor glass base materialwith a polishing memberincluding an abrasive layer

Manufacturing method for phosphor glass thin plate and piece thereof, and phosphor glass thin plate and piece thereof

Provided are a method for manufacturing wavelength conversion members that enables manufacturing of wavelength conversion members having a high light extraction efficiency and suppression of material loss, a wavelength conversion member obtained by the method, and a light-emitting device. A method for manufacturing a plurality of wavelength conversion members by breaking into parts a base materialfor the wavelength conversion members includes the steps of: preparing the base materialhaving a first principal surfaceand a second principal surfaceopposed to each other; forming a breaking groovein the first principal surface; bonding a supportto the second principal surfaceof the base materialhaving the breaking grooveformed in the first principal surface; pressing through the supporta region of the base materialwhere the breaking grooveis formed, thus breaking the base materialinto the plurality of wavelength conversion members along the breaking groove; expanding the supportto form a gap between the plurality of wavelength conversion members lying on the support; and removing the plurality of wavelength conversion members from the supportafter forming the gap.

Method for manufacturing wavelength conversion member, wavelength conversion member, and light-emitting device

Provided is a wavelength conversion member that can be adjusted in chromaticity readily and with high accuracy and a production method for the wavelength conversion member. A wavelength conversion memberhaving a first principal surfaceand a second principal surfaceopposed to each other includes a glass matrixand phosphor particlesdisposed in the glass matrix, wherein a concentration of the phosphor particlesin the first principal surfaceis higher than a concentration of the phosphor particlesin a portion 20 &#x3bc;m inward from the first principal surface, a concentration of the phosphor particlesin the second principal surfaceis lower than a concentration of the phosphor particlesin a portion 20 &#x3bc;m inward from the second principal surface, and the concentration of the phosphor particlesin the first principal surfaceis higher than the concentration of the phosphor particlesin the second principal surface

Wavelength conversion member and production method therefor

Provided is a wavelength conversion member that can be readily adjusted in chromaticity and can be increased in productivity and a production method for the wavelength conversion member. A wavelength conversion memberhaving a first principal surfaceand a second principal surfaceopposed to each other includes a glass matrixand phosphor particlesdisposed in the glass matrix, wherein concentrations of the phosphor particlesin the first principal surfaceand in the second principal surfaceare higher than concentrations of the phosphor particlesin surface layer bottom planesandlocated 20 &#x3bc;m inward from the first principal surfaceand 20 &#x3bc;m inward from the second principal surface, respectively.

Provided is a wavelength conversion member that can be adjusted in chromaticity with high accuracy and a production method therefor. A wavelength conversion memberhaving a first principal surfaceand a second principal surfaceopposed to each other includes a glass matrixand phosphor particlesdisposed in the glass matrix, wherein concentrations of the phosphor particlesin the first principal surfaceand in the second principal surfaceare lower than concentrations of the phosphor particlesin surface layer bottom planesandlocated 20 &#x3bc;m inward from the first principal surfaceand 20 &#x3bc;m inward from the second principal surface, respectively.

Provided is a wavelength conversion member that is less likely to cause deformation or breakage due to thermal expansion and has an excellent light extraction efficiency. A wavelength conversion memberthat converts a wavelength of excitation lightemitted from a light source includes: a containerhaving a frame-shaped sidewall; a phosphor layerdisposed in the containerand containing a resin and a phosphor; a cover memberdisposed over the sidewallof the containerand sealing an interior of the container; and a sealing material layerdisposed between the sidewallof the containerand the cover member, wherein the phosphor layerand the cover memberare in close contact with each other, and a cavitysurrounded by the phosphor layer, the cover member, and the sealing material layeris provided over the sidewallof the container

Wavelength conversion member including cavity, method for producing same, and light-emitting device

Provided is a light-emitting device with quantum dots that has a small in-plane variation in luminescence intensity. A light-emitting device () includes a light-emitting part (), a cell (), a light source (), and an incident light scatting part. The light-emitting part () contains quantum dots. The cell () encapsulates the light-emitting part (). The light source () emits light at a wavelength exciting the quantum dots to the light-emitting part (). The incident light scatting part is disposed between the light source () and the light-emitting part (). The incident light scatting part scatters light incident on the light-emitting part ().

Light-emitting device including quantum dots

Provided are a long-life light emitting device less likely to degrade luminescence properties over time, a method for manufacturing the same, and a cell for a light emitting device used for the same. A light emitting deviceincludes a celland a luminescent material encapsulated in the cell. The cellincludes a pair of glass sheetsandand a glass-made fused part. The pair of glass sheetsandare disposed to face each other with a space therebetween. The fused partis disposed between respective peripheral portions of the pair of glass sheetsand. The fused partis fused to each of the pair of glass sheetsand

Light emitting device, cell for light emitting device, and method for manufacturing light emitting device

Provided is a method that can manufacture a light-emitting device in which quantum dot is used and which has a high luminous efficiency. A light-emitting device () is manufactured that includes: a cell () including first and second glass plates () facing and spaced apart from each other; and quantum dot () encapsulated in the cell (). Prior to the encapsulation of the quantum dot (), a reduction step of reducing moisture adsorbed on the inside walls of the cell () is performed.

Light-emitting device manufacturing method

The present invention can further increase the efficiency of light extraction from the light exit surface of a light-emitting device. A cell () for a light-emitting device includes: a first main wall () and a second main wall () which are disposed facing each other with a distance therebetween; and a sidewall (). The sidewall () connects the first main wall () and the second main wall (). The sidewall () defines, together with the first and second main walls (), an internal space (A) into which a luminescent substance is to be encapsulated. A portion of the sidewall () located laterally of the internal space (A) is white.

Cell for light-emitting device and light-emitting device

Provided is a method whereby a cell for a light-emitting device less variable in the thickness of the internal space can be suitably produced with high production efficiency. A glass-made fused part forming element () is provided in a grid-like pattern between a pair of glass sheet base materials () disposed facing each other with a space therebetween. The fused part forming element () is fused to each of the pair of glass sheet base materials () to produce a cell base material () having a grid-like fused part (). The cell base material () is cut along each of row and column directions of the grid-like fused part () to produce a plurality of light-emitting devices (). Portions off the grid-like fused part forming element () along a first direction are formed of glass ribbons () and portions of the grid-like fused part forming element () along a second direction are formed of glass paste.

Method for producing cell for light-emitting device and method for producing light-emitting device

An optical waveguide member is inserted into a tubular member. The tubular member is elongated with heating and fusion-bonded to the optical waveguide member. Thus, a formed body is obtained. The formed body is cut into a predetermined length to obtain an optical waveguide member. The tubular member is preferably made of a crystallized glass with crystals deposited therein at least in the state of the formed body.

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Otsu, Japan

Hideki Asano