Canon Kabushiki Kaisha

Calsonic Kansei Corporation

Nissan Chemical Industries Limited

Calsonic Corporation

Conon Kabushiki Kaisha

Kenji Makino

Tomonari Nakayama

Yuzo Kataoka

Katsumi Nakamura

Hideki Kobayashi

Tetsuo Asaba

Hiroyasu Koizumi

Hideshi Kuwabara

Keiko Abe

Yukihiro Hayakawa

Toshiaki Yamamoto

Satoshi Ishihara

Kei Fujita

Makoto Tajima

Mineo Shimotsusa

Hiroshi Yuzurihara

Toru Matsuda

Seiichi Tamura

Masami Ikeda

Hiroshi Sugitani

Yasuhiro Sekine

Shigeyuki Matsumoto

Shigeru Nishimura

Yasuo Kawamura

Shinichi Inoue

Haruo Ikeda

Masahiko Kubota

Akira Okita

Teruo Ozaki

Junichi Kobayashi

Takayuki Yagi

Takashi Suzuki

Masahiro Takizawa

Yasushi Matsuno

Tsutomu Nawamaki

Masaaki Izumida

Takayuki Kimura

Akira Sakai

Yasushi Kawasumi

Yutaka Akino

Hiroshi Chikuma

Minoru Tsuchiya

Yutaka Kusano

Kunio Matsugi

Yoshiki Tsuda

Junichi Enari

Mamoru Baba

Seiji Kamei

Yutaka Yuge

Norishige Kakegawa

Fujihiro Ito

Yasuhiro Naruse

Gojyo Sakata

Fujihiro Itoh

Masayoshi Hirose

Shigeomi Watanabe

Koyo Hasegawa

Genzo Momma

Hideaki Suzuki

Morimi Hashimoto

Masaaki Okada

Kenji Nagata

Jun Satow

Kiyomi Ozawa

Kiminori Hirata

Norihiko Ochi

Takeshi Nagaoka

Katsuaki Kuge

Masanobu Ogane

Ko Yoneda

Toshimasa Hamada

Yoichi Ito

Yasukazu Ura

Toshio Niki

Kazuhisa Sudo

Yoshiyuki Kusuoka

Ershad Ali Chowdhury

Kazuya Kusano

Yu Kameno

Mitsugu Futagawa

Yasushi Toda

Toshinao Tatsuno

Hijiri Hasegawa

Tooru Matsuda

Tooru Matuda

Tohoru Matuda

Shin'ichi Inoue

Yuzo Kayaoka

Jun Sato

Shinichi Igarashi

A cemented lens includes a first optical element, a second optical element, a third optical element sandwiched between the first optical element and the second optical element and containing resin, a light shielding layer covering a surface of the third optical element that is in contact with neither the first optical element nor the second optical element, and a porous layer covering at least a part of the light shielding layer.

Cemented lens, optical system including the same, optical apparatus, and method for manufacturing cemented lens

An optical member that has excellent antireflection properties and that can maintain antifogging properties over a long term, and a method for manufacturing an optical member are provided. The optical member includes, in sequence, a substrate, a porous layer, and a multilayered antireflection layer. The ratio n/nis 0.85 or more and 0.95 or less, where n represents a refractive index of a layer having the highest refractive index among layers included in the antireflection layer and nrepresents a refractive index of a compound constituting the layer having the highest refractive index at a theoretical density.

Optical member and method for manufacturing optical member

There is provided an optical member including a porous layer on a substrate, wherein the porous layer contains silicon oxide particles, a silicon oxide binder, and a fluorine compound having a fluorocarbon group and a nonionic hydrophilic group, and the amount of the fluorine compound is 0.1% by mass or more and 2.5% by mass or less with respect to the silicon oxide.

Antireflective optical member and method for producing antireflective optical member

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.

An optical member includes a substrate and an antireflection film on the substrate. The antireflection film includes a porous layer at the surface thereof. The porous layer contains silicon oxide particles and a binder. The porous layer is provided with a fluororesin on at least part of the surface of the porous layer. The contact angle of n-hexadecane on the surface of the antireflection film is in the range of 50&#xb0; to 80&#xb0;.

Optical member and method for manufacturing the same

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 member including a base material and an antireflection film on the base material, wherein the antireflection film has a porous layer as the surface, the porous layer contains silicon oxide particles and a binder, the porous layer has a refractive index of 1.19 or more and 1.30 or less, and the surfaces of the silicon oxide particles and the binder have alkylsilyl groups.

The optical member according to the present invention includes a film containing a plurality of chain particles and having a refractive index of 1.21 or more and 1.27 or less at a wavelength of 550 nm on a substrate. The film includes an alcohol having an ether bond or an ester bond and having a branched structure having 4 to 7 carbon atoms in a range of 1.0 mg/cmor more and 2.8 mg/cmor less.

Optical member, image pickup apparatus, and method for manufacturing optical member

A method for manufacturing an optical member includes a step of applying a dispersion liquid containing particles and a dispersion medium on a substrate, a step of applying a solution containing a component to form a binder after the step of applying the dispersion liquid, and causing the solution to permeate a portion between the particles contained in the dispersion liquid applied in advance to form a single layer in which the portion between the particles is filled with the binder, and a step of drying the layer to prepare an antireflection film. The solution contains a silane-alkoxy condensate having an average particle diameter of 8 nm or more and 60 nm or less, and the solution contains a solvent having solubility of water of 10% by weight or less in an amount of 70% by mass or more.

Optical member, method for manufacturing optical member, and optical device

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 method of manufacturing a printhead substrate, including forming a metal pattern, including a portion forming a pair of electrodes, on an insulating member, forming a conductive film which covers the insulating member and the metal pattern, including a first portion forming a temperature detection element and a second portion except for the first portion, etching the second portion so as to form the pair of electrodes, and etching the first portion so as to form the temperature detection element which is connected to the pair of electrodes, wherein an etching amount in the etching the second portion is larger than a thickness of the conductive film, and an etching amount in the etching the first portion is smaller than the etching amount in the etching the second portion.

Printhead substrate, method of manufacturing the same, printhead, and printing apparatus

Provided is an optical member where at least a layer having polyimide as a main component and a layer having a textured structure arising from a crystal containing aluminum oxide as a main component are stacked in this order. The polyimide includes a silane group in a side chain via an amide bond.

Optical member and method of producing the same

A precursor sol of aluminum oxide includes a solvent and particles containing a hydrolysate of an aluminum compound and/or a condensate of the hydrolysate, in which the particles have an average particle size of 2.5 nm to 7 nm. A method for producing an optical member includes the steps of feeding the precursor sol of aluminum oxide described above onto a base to form an aluminum oxide film and immersing the aluminum oxide film in hot water with a temperature of 60&#xb0; C. to 100&#xb0; C. to form a textured structure comprising aluminum oxide boehmite.

Precursor sol of aluminum oxide and method for producing optical member

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Tokyo, Japan

Kenji Makino