PRESS MOLDING GLASS MATERIAL, MANUFACTURING METHOD THEREOF, AND MANUFACTURING METHOD OF OPTICAL ELEMENT
PROBLEM TO BE SOLVED: To provide a press molding glass material which enables to obtain a glass molded body of a desired shape while suppressing fusion to a molding die regardless of glass deformation volume in press molding.SOLUTION: The press molding glass material includes: a core portion compose...
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| creator | IGARI TAKASHI YASUHIKO KENYA |
| description | PROBLEM TO BE SOLVED: To provide a press molding glass material which enables to obtain a glass molded body of a desired shape while suppressing fusion to a molding die regardless of glass deformation volume in press molding.SOLUTION: The press molding glass material includes: a core portion composed of optical glass; and a surface layer covering the core portion. The surface layer includes an outermost layer contacting with a molding surface of a molding die in press molding and an intermediate layer adjacent to the outmost layer, the outermost layer is a silicon oxide film having a surface free energy measured by a three-solution method of ≤75 mJ/mand having a film thickness of 0.10 , wherein in a case in which the bond-radius difference is >0.10 to 0.40 , a film thickness of the intermediate layer is ≤5 nm. |
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The surface layer includes an outermost layer contacting with a molding surface of a molding die in press molding and an intermediate layer adjacent to the outmost layer, the outermost layer is a silicon oxide film having a surface free energy measured by a three-solution method of ≤75 mJ/mand having a film thickness of <15 nm, and the intermediate layer is a film composed of a film material having a bond-radius difference from a silicon oxide based on a stoichiometric composition of >0.10 , wherein in a case in which the bond-radius difference is >0.10 to 0.40 , a film thickness of the intermediate layer is ≤5 nm.</description><language>eng</language><subject>CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUSENAMELS ; CHEMISTRY ; GLASS ; JOINING GLASS TO GLASS OR OTHER MATERIALS ; MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES ; METALLURGY ; MINERAL OR SLAG WOOL ; OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS ; OPTICS ; PHYSICS ; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS,MINERALS OR SLAGS ; SURFACE TREATMENT OF GLASS</subject><creationdate>2013</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20130110&DB=EPODOC&CC=JP&NR=2013006746A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25563,76418</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20130110&DB=EPODOC&CC=JP&NR=2013006746A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>IGARI TAKASHI</creatorcontrib><creatorcontrib>YASUHIKO KENYA</creatorcontrib><title>PRESS MOLDING GLASS MATERIAL, MANUFACTURING METHOD THEREOF, AND MANUFACTURING METHOD OF OPTICAL ELEMENT</title><description>PROBLEM TO BE SOLVED: To provide a press molding glass material which enables to obtain a glass molded body of a desired shape while suppressing fusion to a molding die regardless of glass deformation volume in press molding.SOLUTION: The press molding glass material includes: a core portion composed of optical glass; and a surface layer covering the core portion. 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The surface layer includes an outermost layer contacting with a molding surface of a molding die in press molding and an intermediate layer adjacent to the outmost layer, the outermost layer is a silicon oxide film having a surface free energy measured by a three-solution method of ≤75 mJ/mand having a film thickness of <15 nm, and the intermediate layer is a film composed of a film material having a bond-radius difference from a silicon oxide based on a stoichiometric composition of >0.10 , wherein in a case in which the bond-radius difference is >0.10 to 0.40 , a film thickness of the intermediate layer is ≤5 nm.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUSENAMELS CHEMISTRY GLASS JOINING GLASS TO GLASS OR OTHER MATERIALS MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES METALLURGY MINERAL OR SLAG WOOL OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS PHYSICS SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS,MINERALS OR SLAGS SURFACE TREATMENT OF GLASS |
| title | PRESS MOLDING GLASS MATERIAL, MANUFACTURING METHOD THEREOF, AND MANUFACTURING METHOD OF OPTICAL ELEMENT |
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