Nippon Sheet Glass Company, Limited

Other

Atsunori Matsuda

Hiroaki Yamamoto

Koichiro Nakamura

Masahiro Tatsumisago

Tsutomu Minami

Kiyoharu Tadanaga

Masahiro Hori

Yoshihiro Matsuno

Shinya Katayama

Kenjiro Hamanaka

Satoshi Taniguchi

Takashi Kishimoto

Mitsuhiro Kawazu

Naoto Hirayama

Toshio Tsuno

Noboru Akazawa

Mitsuhiro Kawadu

Manabu Takami

A process for producing an optical element which has excellent heat resistance and adhesion to a substrate. This process comprises applying a liquid composition for forming an optical element to the molding surface of a substrate having a regular pattern surface consisting of areas having high wettability and areas having low wettability as the molding surface and curing the composition to form projections in the areas having high wettability. A solution containing at least one compound selected from the group consisting of a hydrolyzable compound which can be hydrolyzed and polycondensed and a hydrolyzed/polycondensed product thereof is used as the liquid composition for forming an optical element.

Method for fabricating optical element

An article having a predetermined surface configuration comprising a substrate and a gelled film having a high refractive index, excellent heat resistance, high film hardness and excellent transferability formed on the surface of the substrate. A process for producing an article having a gelled film with a transferred surface on the surface of a substrate by arranging a sol-gel material with close contact between the substrate and a mold in the form of a film and heating it. The sol-gel material contains a metal compound represented by MX, a hydrolyzate thereof or a hydrolysis/polycondensation product thereof, and a metal compound represented by RMY, a hydrolyzate thereof or a hydrolysis/polycondensation product thereof, wherein at least one of Mand Mis a metal atom selected from Ti, Zr, Al, Ge, Sn or Sb and the metal atom accounts for at least 10 atom % of the total of Mand M.

Article having a predetermined surface shape and method for preparation thereof

An article with a predetermined surface pattern that is coated with a film which makes possible the complete transfer of the pattern of a patterning die and thick-film patterning having a depth to the order of several tens of micrometers, prevents the occurrence of cracks, has high film hardness, and has a surface pattern which is the inverse of the surface pattern of the patterning die. This article is produced by joining a patterning die closely to a substrate with a sol-gel material containing the silane compound represented by the formula: RSiX(wherein Ris an alkyl group or hydrogen and X is an alkoxyl group or a halogen atom) and the silane compound represented by the formula: RSiY(wherein Ris an aryl group or a substituted aryl group and Y is an alkoxyl group or a halogen atom) disposed therebetween in the form of a film and heating them to coat the surface of the substrate with a gel film having a surface pattern which is the inverse of the surface pattern of the patterning die.

Article having predetermined surface shape and method for production thereof

Method for producing article coated with patterned film and photosensitive composition

A large number of microscopic recess portions are formed on a surface of a glass substrate in a single dimension or two dimensions by conducting a wet etching through a mask. The large number of microscopic recess portions are aligned densely by again conducting the wet etching but not through the mask. A separating agent is applied upon the surface of the glass substrate and a light-curable or heat-curable resin material of high refractive index is applied thereon. The high refractive index resin material is cured, after piling a first glass substrate upon the high refractive index resin material so as to extend the high refractive index resin material thereon. The high refractive index resin material which is cured and the first glass substrate are separated from the glass substrate, and a low refractive index resin material is applied on the high refractive index resin material which is cured on the first glass substrate. The low refractive index resin material is cured, after piling a second glass substrate on the low refractive index resin material so as to extend the low refractive index resin material thereon.

Method of manufacturing flat plate microlens and flat plate microlens

The optical parts according to the invention have a feature of having smoothly coated surfaces for incident and emergent lights covered thereover with a light transmitting solid coating layer, and can be manufactured by a simplified process at least without needing polishing, together with the advantages of being weatherproof in atmosphere of high temperature and high humidity and antiozonant.

Optical part

Disclosed herein is a process for producing a minute-patterned substrate required for optical disk substrates for information recording or the like, which process comprises forming a coating film of a solution containing a metal-organic compound and a thickener on a substrate, pressing a mold against the coating film on the substrate under a reduced pressure and heating the coating film to set up the coating film, then removing the mold, and heating the set coating film on the substrate. By the process it is possible to provide the substrate surface with a minute rough pattern, without generation of surface defects arising from the pressing of the mold against the coating film, and to set up the coating film in a short time and with good dimensional accuracy. It is therefore possible to produce a rough surface pattern with high productivity.

Process for producing a minute-patterned substrate

Growing community of inventors

Kawachinagano, Japan

Atsunori Matsuda