Optical member and optical instrument

Provided are an optical member including a substrate and a porous layer on the substrate, in which the porous layer includes a silica particle, a silanol group included in the silica particle at a surface of the porous layer is substituted with a functional group included in a divalent organic group...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	Takachi, Miwa
Format:	Patent
Sprache:	eng
Schlagworte:	ADHESIVES CHEMICAL PAINT OR INK REMOVERS CHEMISTRY COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS COMPOUNDS THEREOF CORRECTING FLUIDS DYES ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY FILLING PASTES INKS INORGANIC CHEMISTRY METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS NON-METALLIC ELEMENTS OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS PAINTS PASTES OR SOLIDS FOR COLOURING OR PRINTING PHYSICS PICTORIAL COMMUNICATION, e.g. TELEVISION POLISHES USE OF MATERIALS THEREFOR WOODSTAINS
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Beschreibung
Zusammenfassung:	Provided are an optical member including a substrate and a porous layer on the substrate, in which the porous layer includes a silica particle, a silanol group included in the silica particle at a surface of the porous layer is substituted with a functional group included in a divalent organic group having a specific number of atoms and a specific hydrophilic group, and a molar ratio of the divalent organic group to the silanol group on the surface of the porous layer as expressed by the formula of divalent organic group/silanol group is in a range of more than 0.25 and 1.5 or less, an optical instrument including the optical member, and a method for producing an optical member which includes a substrate and a porous layer on the substrate, the method including a coating liquid applying step, a drying and curing step, and an organic chain substituting step.