Nippon Sheet Glass Company, Limited

Sumitomo Chemical Company, Limited

Mitsubishi Cable Industries, Ltd.

Koichi Maeda

Akio Takigawa

Hiroaki Yamamoto

Mitsuhiro Kawazu

Shinichiro Kitayama

Taro Miyauchi

Motoaki Yoshida

Satoshi Ishizuka

Toshifumi Tsujino

Hisayuki Kayanoki

Shigeo Hozumi

Teruho Adachi

Yuichi Aoki

Satoshi Shiiki

Masahiro Ueda

Naoya Imamura

Koichiro Nakamura

Takeshi Satake

Koji Kimura

Tatsuya Noguchi

Naoto Hirayama

Yasuyoshi Tago

Katuhiko Kinugawa

An optical connector includes slide pins and , held for movement in a direction of an axis of the optical connector , and a proximity switch whose conducting state can be switched in response to the movement of the slide pins. Only when the optical connector is properly connected to an optical receptacle , the proximity switch is turned into the conducting state.

Connector with a connection detection function, optical fiber cable with a connection detection function, and equipment control mechanism for an optical equipment

Optical recording film and process for production thereof

Optical thin film, forming composition thereof, and ultraviolet ray

Colored film forming composition and method of manufacturing colored

Colored film-covered glass articles include a glass substrate and a colored film covering the glass substrate, the colored film containing, by wt %, greater than 50 to 95 of silicon oxide, 0.about.30 of at least one member selected from the group consisting of zirconium oxide, tantalum oxide and titanium oxide, 0.about.25 of cerium oxide, 5.about.20 of gold as coloring fine particles as main components. The glass articles have a visible light reflectance at a side of the glass substrate not covered with the colored film is 10.0% or below. The small visible light reflectance is caused by the surface plasmon absorption of the fine particles of gold.

Colored film-covered glass articles

A sunligh absorbing colored film-coated glass article which can freely control color tint, infrared transmittance, UV light transmittance, and visible light transmittance. The colored film-coated glass article which comprises a glass substrate and a colored film formed on one surface thereof, the colored film comprising, in % by weight: 5-30% at least one coloring fine particle selected from the group consisting of gold, silver, platinum, palladium, cadmium sulfide, and cadmium selenide;

Colored film-coated glass article

UV absorbing, colored film-covered glass articles

A composition for an optical material, which comprises an N-phenylmaleimide, a di(meth)allyl diphenate and a bisphenol ester. The N-phenylmaleimide, the di(meth)allyl diphenate and the bisphenol ester are contained in amounts of 1 to 50% by weight, 5 to 50% by weight and 1 to 30% by weight, based on the total weight of these components, respectively, The composition affords a three-dimensionally crosslinked resin by radical polymerization. The resin is useful for an optical material.

Optical material and composition for optical material

A process for producing a light control plate which selectively scatters incident light of a specific angle, which comprises:

Process for producing light control plate

A process for producing a light control plate, which comprises

Process for producing light control plate having light-scattering

A method of producing a light control plate which induces scattering of light at different angles of incidence for different places. The method comprises (1) preparing an assembly comprising a film of a photo-polymerizable composition and a light-pervious body having a light-impervious pattern arranged along the surface of the film, (2) irradiating light limitedly to the assembly from that side where the light-pervious body at a limited angle while moving the assembly continuously in the planar direction of the film thereby to polymerize at least part of the photopolymerizable film, the light being emitted from a first linear light source whose long axis is positioned in a direction crossing the moving direction of the assembly; and thereafter (3) polymerizing the photopolymerizable composition of that portion of the film-like molded article which is covered with the light-impervious pattern of the light-pervious body by light irradiation or heating.

Method of producing light control plate which induces scattering of

A light control sheet capable of scattering an incident light of particular incident angle is produced by a method composed of preparing a film of a composition containing at least two photopolymerizable components having different refractive indexes, irradiating on the film a light from a particular direction, and obtaining a cured film of the light control sheet product. Such other light control sheets as capable of scattering a plurality of incident lights each of particular incident angle are obtained by modification of the above-mentioned method.

Light control sheets

A plastic multifocal point spherical lens comprising a unitary structure of (A) a first synthetic resin layer having a fixed refractive index, (B) a second synthetic resin layer having a substantially fixed refractive index different from the refractive index of the first synthetic resin layer, and (C) a third synthetic resin layer existing between the first synthetic resin layer and the second synthetic resin layer and having a refractive index gradient varying continuously from the refractive index of the first synthetic resin layer to that of the second synthetic resin layer, part of the second synthetic resin layer and part of the third synthetic resin layer together being recessed into the first synthetic resin layer, and the second synthetic resin layer being thicker at the recessed part than the rest. The lens is prepared by (1) partially polymerizing a first monomer to form a partially polymerized molded mass, (2) applying a second monomer to substantially the entire surface of the partially polymerized molded mass, and (3) after part of the second monomer has diffused into the partially polymerized molded mass, subjecting the entire monomers to polymerization reaction and substantially completing the polymerization.

Plastic multifocal point spherical lens

Growing community of inventors

Osaka, Japan

Koichi Maeda