Canon Kabushiki Kaisha

Fuji Chemical Company, Limited

Keiko Abe

Tomonari Nakayama

Makoto Kubota

Motokazu Kobayashi

Kenji Makino

Norishige Kakegawa

Kenji Maeda

Fumio Uchida

Chiemi Shimizu

Katsuaki Kuge

Hijiri Hasegawa

A related-art optical element using an antireflection film having a layer having an uneven structure or a porous layer has involved a problem in that the performance of the antireflection film is degraded by SOin an exhaust gas. In view of the problem, provided are an optical element in which a positive ion spectrum of a surface of an antireflection film measured by TOF-SIMS has a peak of CHN, where m represents an integer of 1 or more to 8 or less, and n represents an integer of 2 or more to 16 or less, and a method of producing the element.

Optical element and method of producing the element, and optical instrument

The present invention relates to an optical element including a base material, a light-shielding film, and a cured film in which an alkyd resin and a melamine resin having two or more iminomethylol groups in a molecule are condensed or in which an alkyd resin and a benzoguanamine resin having two or more iminomethylol groups in a molecule are condensed. The light-shielding film is disposed in at least a part of the periphery of the base material. The cured film is disposed on the surface of the light-shielding film.

Optical element and method of producing optical element

An optical member includes a base material and an antireflective layer on the base material wherein the antireflective layer includes a plurality of fine protrusions on a surface thereof and a support layer for supporting the protrusions, and the support layer contains boron in an amount of 7&#xd7;10atoms/cmor more and 2.5&#xd7;10atoms/cmor less.

Optical member and method for manufacturing optical member

A precursor sol of aluminum oxide contains a polycondensate formed by the hydrolysis of an aluminum alkoxide or an aluminum salt, a solvent, and an organic aluminum compound having a specific structure. An optical member is produced by a process including a step of immersing an aluminum oxide film in a hot water with a temperature of 60&#xb0; C. to 100&#xb0; C. to form a textured structure made of aluminum oxide crystals, the aluminum oxide film being formed by feeding the precursor sol of aluminum oxide onto a base. A method for producing an optical member includes a step of immersing an aluminum oxide film in a hot water with a temperature of 60&#xb0; C. to 100&#xb0; C. to form a textured structure made of aluminum oxide crystals, the aluminum oxide film being formed by feeding the precursor sol of aluminum oxide onto a base.

Precursor sol of aluminum oxide optical member and method for producing optical member

An optical element is provided that includes a base having a smooth surface and a rough surface on one surface thereof, an antireflection film having an irregularity structure on a surface of the antireflection film over the smooth surface of the base, and a light shielding film over the rough surface, wherein the irregularity structure of the antireflection film has an average height of 50 nm or less in an overlapping portion, in which an edge portion of the antireflection film and an edge portion of the light shielding film overlap each other over the smooth surface.

Optical element, manufacturing method thereof, and optical apparatus

An optical element having a substrate and a light-shielding film on part of an outer portion of the substrate further contains a coating on the light-shielding film, the coating containing a cured mixture of a melamine or benzoguanamine resin, and a phenolic resin, in proportions by mass of 1:5 to 7:5.

Optical element and method for producing optical element

Precursor sol of aluminum oxide, optical member, and method for producing optical member

A precursor sol of aluminum oxide includes particles containing a hydrolysate and/or a condensate of an aluminum compound, a solvent, and an organo aluminum compound. When a pulsed-NMR Trelaxation curve of nuclideH of the precursor sol of aluminum oxide includes two components with different Trelaxation times and the component with the longer Trelaxation time has an abundance level of C(%) and the component with the shorter Trelaxation time has an abundance level of C(%), the relative proportion R(%) defined by [{C/(C+C)}&#xd7;100] is in the range of 23.5% to 50.0%, both inclusive.

Precursor sol of aluminum oxide and method for manufacturing the same, method for manufacturing optical member, optical member, and optical system

A precursor sol of aluminum oxide contains a polycondensate formed by the hydrolysis of an aluminum alkoxide or an aluminum salt, a solvent, and an organic aluminum compound of general formula (1): 

A fuel cell including a fuel cartridge with a fuel storage portion and a fuel feed opening and a fuel cell body with an output terminal and a power generation portion. The fuel cell comprises a wiring portion for electrically connecting the output terminal and power generation portion of the fuel cell body with each other when the fuel cartridge is mounted to the fuel cell body to place a fuel in a state in which the fuel is feedable from the fuel cartridge to the fuel cell body and for electrically disconnecting the output terminal and power generation portion of the fuel cell body when the fuel cartridge is removed from the fuel cell body.

Fuel cartridge and fuel cell

An unsaturated compound including a urethane bond in a main chain and a sulfonic acid group, a phosphoric acid group, an alkylsulfonic acid group, or an alkylphosphoric acid group on a benzene ring in a side chain is provided. In addition, a solid polymer electrolyte membrane containing a compound prepared by polymerizing the above-mentioned compound and an electrolyte membrane-electrode assembly including diffusion layers adhered on both surfaces of the electrolyte membrane are provided. Furthermore, a solid polymer fuel cell using the electrolyte membrane-electrode assembly is provided.

Compound for solid polymer electrolyte membrane

The present invention can provide a polymer electrolyte membrane having power generation characteristics with a high output and long life and a polymer electrolyte fuel cell using the same. The present invention provides a polymer electrolyte membrane having a porous polymer film and a proton conducting component present in a hole of the porous polymer film, characterized in that the proton conducting component has a compound having a proton conducting group and a bicyclo ring structure.

Polymer electrolyte membrane and method for producing polymer electrolyte membrane

Compound, solid polymer electrolyte membrane, electrolyte membrane-electrode assembly, and solid polymer fuel cell

An electrolyte membrane with high durability is provided. The electrolyte membrane includes a porous film containing a nitrogen-containing heterocyclic ring or a cyano group, and a proton conductive component existing in pores of the porous film, wherein the proton conductive component includes a polymer compound containing at least a nitrogen-containing heterocyclic ring, a cyano group, and an acidic group in one molecule.

Growing community of inventors

Kawasaki, Japan

Keiko Abe