Nippon Sheet Glass Company, Limited

Other

Koichi Sakaguchi

Shigeki Nakagaki

Shinjiro Domi

Yukihito Nagashima

Shigekazu Yoshii

Teruhide Inoue

Katsuaki Suganuma

Hiromitsu Seto

Masao Misonou

Masahiro Tsuda

Yasuto Sakai

Kunihiro Nomiyama

Akihiro Koyama

Shoichi Kishimoto

Kosuke Fujiwara

Akihiro Hishinuma

Isamu Kuroda

Hirotaka Koyo

Osamu Ishii

Yoshikazu Toshikiyo

Toru Futagami

Yasunori Shiraishi

Yasushi Fujimoto

Masahiro Nakatsuka

Takashi Uchino

The present invention provides a glass composition that allows holes with a circular contour and a smooth inner wall to be formed by a collective micro-hole-forming process using a combination of modified portion formation by ultraviolet laser irradiation and etching, the glass composition being adapted for practical continuous production. The present invention relates to a glass for laser processing, the glass having a glass composition including, in mol %: 45.0%&#x2264;SiO&#x2264;70.0%; 2.0%&#x2264;BO&#x2264;20.0%; 3.0%&#x2264;AlO&#x2264;20.0%; 0.1%&#x2264;CuO&#x2264;2.0%; 0%&#x2264;TiO&#x2264;15.0%; and 0%&#x2264;ZnO&#x2264;9.0%, wherein a relationship of 0&#x2264;LiO+NaO+KO&#x3c;2.0% is satisfied.

Glass for laser processing and method for producing perforated glass using same

The glass flake of the present invention has a composition that includes, in terms of mass %, 60&#x3c;SiO&#x2266;65, 8&#x2266;AlO&#x2266;15, 47&#x2266;(SiO&#x2014;AlO)&#x2266;57, 1&#x2266;MgO&#x2266;5, 18&#x2266;CaO&#x2266;30, 0&#x3c;LiO&#x2266;4, 0&#x3c;(LiO+NaO+KO)&#x2266;4, and 0&#x2266;TiO&#x2266;5, and that is substantially free from BO, F, ZnO, BaO, SrO, and ZrO.

Glass flake

A clad glass composition that is excellent in devitrification resistance and that prevents the whole mother glass rod from devitrifying by preventing a core glass composition from devitrifying in forming a mother glass rod using a concentric crucible drawing method, is provided. The clad glass composition forms a clad of a mother glass rod for a gradient-index rod lens having a core/clad structure.

Clad glass composition and mother glass rod for gradient-index rod lens formed using the same, gradient-index rod lens and method of manufacturing the same, rod lens array, and image processor

The present invention provides a glass composition that exhibits a fluorescence function and an optical amplification function in a wide wavelength range. This glass composition includes a bismuth oxide, a silicon oxide, an aluminum oxide, and a divalent metal oxide, and the glass composition emits fluorescence in an infrared wavelength region through irradiation of excitation light, with bismuth contained in the bismuth oxide functioning as a fluorescent source.

Glass composition that emits fluorescence in infrared wavelength region

A gradient-index rod lens is provided that is excellent in yield. The gradient-index rod lens has a core/clad structure and is obtained by providing a mother glass rod, which includes a core glass mother composition and a clad glass mother composition, with a refractive index distribution through ion exchange. The clad and the core each contains an alkali metal oxide but are substantially free from lead. The clad and the core each contains an alkali metal oxide and has a basic composition including components other than the alkali metal oxide, but they are different from each other in the basic composition. The clad glass mother composition has a higher thermal expansion coefficient and glass-transition temperature than those of the core glass mother composition. The difference of the thermal expansion coefficient between the clad glass mother composition and the core glass mother composition is larger than 2&#xd7;10/&#xb0; C. but smaller than 20&#xd7;10/&#xb0; C.

Gradient-index rod lens, and rod lens array and image processor using the same

The present invention provides a glass composition suitable for producing a poling effect. This glass composition includes 0.001 to 0.5 mol % of univalent metal ions in terms of oxide thereof, 0.1 to 40 mol % of AlO, and 0 to 15 mol % of BO, and a ratio of the number of moles of AlOto a sum of moles of oxide in terms of which the univalent metal ions is expressed is at least 1.0. As the univalent metal ions are suitable Li, Na, K, Cs, Ag, Cu, and Au.

Glass composition for poling and glass functional product containing the same

The planar lens of the invention having a flat glass substrate, in which a refractive index distribution is formed by diffusing a refractive index-increasing component into the flat glass substrate in a substantially hemispherical form or semicylinder form, wherein the refractive index-increasing component is silver, and the flat glass substrate comprises Li as an alkali metal that is subject to an ion exchange with the silver.

Planar lens

A glass panel (P) including a pair of glass sheets ( A), ( B) disposed in a spaced relationship with each other with forming a gap (V) therebetween, characterized in that peripheral edges of the glass sheets ( A), ( B) are bonded directly by a single metal material ( ) for sealing the gap (V) hermetically.

Method of manufacturing glass panel and glasspanel manufactured by the method

In order to provide a glass panel in which any substance which may be present on the glass surface and may then become detached to invite deterioration in the vacuum degree has been sufficiently reduced and which can maintain highly sealed condition against the surround atmosphere for an extended period of time, in a glass panel comprising a pair of glass sheet disposed in an opposing and spaced relationship with each other with a gap formed therebetween, the gap being air-tightly sealed by joining peripheral edges of the glass sheets with a sealing material, at least one of the glass sheets has a water contact angle of 30 degrees or less on a gap-side glass surface thereof.

Glass panel and its manufacturing method

Glass panel and production method therefor

To maintain high bonding performance between two glass sheets by metal material, thereby to obtain high gas tightness and bonding strength. A glass panel includes a pair of glass sheets ( A, B) disposed in opposition to each other with forming a gap (V) therebetween, the peripheral edges of the opposed glass sheets ( A, B) being directly bonded to each other by metal material ( ); wherein bonding faces ( Aa) in the opposed surfaces of the glass sheets ( A, B) to be bonded to the metal material ( ) are worked so as to obtain an average surface roughness below 30 nm.

Glass panel

A method for shifting the absorption peak wavelength in the wavelength range 900-1600 nm of an infrared radiation absorbing glass from less than 1100 nm to 1100 nm or longer without substantially changing the tint of the glass, comprising the step of irradiating with ultraviolet light of 400 nm or shorter at an energy density of 1.0&times;10 J/m /hr or more to increase the content of FeO in the irradiated glass by reducing Fe (III) to Fe (II), the ultraviolet light irradiated glass thereby comprising 0.02 wt. % or more FeO in terms of Fe O . The glass to be irradiated comprises, in % by weight: 65 to 80% SiO , 0 to 5% Al O , 0 to 10% MgO, 5 to 15% CaO, 10 to 18% Na O, 0 to 5% K O, 5 to 15% MgO&plus;CaO, 10 to 20% Na O&plus;K O, and 0 to 5% B O ; 0.02% or more total iron oxide (T-Fe O ) in terms of Fe O , 0 to 2.0% CeO , 0 to 1.0% TiO , 0 to 0.005% CoO, and 0 to 0.005% Se.

Method for shifting absorption peak wavelength of infrared radiation absorbing glass

A method of bonding respective objects made of different kinds of material to each other is disclosed. The method includes the steps of (A) contacting a bonding material in the fluid state thereof with respective bonding faces of the respective objects to be bonded, (B) mechanically abrading portions of the respective bonding faces contacting the bonding material to be bonded to each other, (C) setting the respective objects fixed in a predetermined position relative to each other while maintaining the respective objects in contact with the bonding material in the fluid state thereof, and (D) solidifying the bonding material to bond the respective objects to each other. In the respective steps (A)-(D), the bonding material is present at the bonding portions to be bonded to each other of the respective objects constantly and without discontinuities.

Method of manufacturing bonded assembly

A method of partially forming oxide layers on a surface of a glass substrate by forming an oxide layer on the surface of the substrate, partially contacting the surface of the oxide layer formed on the substrate with a paste comprising an inorganic compound different from the oxide, organic solvents and silicon powder to partially dissolving the oxide layer with the paste, and removing the dissolved components of the layer together with the paste, by which the oxide layers are partially formed on the surface of the substrate efficiently and surely.

Method of partially forming oxide layer on glass substrate

The ultraviolet/infrared transmittance glass consists of base glass including: 65 to 80 wt. % SiO ; 0 to 5 wt. % B O ; 0 to 5 wt. % Al O ; 0 to 10 wt. % MgO; 5 to 15 wt. % CaO; 10 to 18 wt. % Na O; 0 to 5 wt. % K O; 5 to 15 wt. % total amount of MgO and CaO; and 0 to 20 wt. % total amount of Na O and K O, colorants including: equal to or more than 0.05 wt. % and less than 0.2 wt. % total iron oxide (T&mdash;Fe O ) expressed as Fe O ; 0.63 to 1.4 wt. % CeO ; 0.02 to 1.5 wt. % TiO ; 0.0005 to 0.005 wt. % CoO; and 0.0003 to 0.002 wt. % Se. FeO expressed as Fe O is between 30 wt. % and 60 wt. % of T&mdash;Fe O .

Growing community of inventors

Osaka, Japan

Koichi Sakaguchi