Optical glass, preform and optical element
The invention provides optical glass, a preform and an optical element. Provided is an optical glass which has a refractive index and an Abbe number within a desired range and is suitable for an optical element that contributes to light weight and stability of an optical device. The optical glass co...
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| description | The invention provides optical glass, a preform and an optical element. Provided is an optical glass which has a refractive index and an Abbe number within a desired range and is suitable for an optical element that contributes to light weight and stability of an optical device. The optical glass contains, in mass%, 15.0 to 35.0% of a B2O3 component, 20.0 to 41.58% of a La2O3 component, 3.0% or less of an Nb2O5 component, 3.0% or less of a WO3 component, 0.1% or less of a Ta2O5 component, and 6.00% or less of a ZrO2 component, has a refractive index of 1.80 or more, an Abbe number of 35 to 40, and a specific gravity of 4.80 or less, the mass sum of an Ln2O3 component is 20.0 to 41.58%, Ln is one or more selected from La, Gd, Y, and Yb, and (Nb2O5 + WO3)/(La2O3 + Gd2O3 + Ta2O5) is 0.05 or less.
光学玻璃、预成型体及光学元件。更廉价地提供光学玻璃，折射率及阿贝数在期望的范围内，适合于有助于光学设备的轻质化稳定的光学元件。光学玻璃按质量％计含有15.0～35.0％的B2O3成分、20.0％～41.58％的La2O3成分，Nb2O5成分的含量为3.0％以下，WO3成分为3.0％以下，Ta2O5成分为0.1％以下，ZrO2成分为6.00％以下，光学玻璃具有1.80以上的折射率、35～40的阿贝数和4.80以下的比重，Ln2O3成分的 |
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光学玻璃、预成型体及光学元件。更廉价地提供光学玻璃，折射率及阿贝数在期望的范围内，适合于有助于光学设备的轻质化稳定的光学元件。光学玻璃按质量％计含有15.0～35.0％的B2O3成分、20.0％～41.58％的La2O3成分，Nb2O5成分的含量为3.0％以下，WO3成分为3.0％以下，Ta2O5成分为0.1％以下，ZrO2成分为6.00％以下，光学玻璃具有1.80以上的折射率、35～40的阿贝数和4.80以下的比重，Ln2O3成分的</description><language>chi ; eng</language><subject>CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUSENAMELS ; CHEMISTRY ; GLASS ; JOINING GLASS TO GLASS OR OTHER MATERIALS ; METALLURGY ; MINERAL OR SLAG WOOL ; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS,MINERALS OR SLAGS ; SURFACE TREATMENT OF GLASS</subject><creationdate>2022</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=20221101&DB=EPODOC&CC=CN&NR=115259656A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25543,76294</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20221101&DB=EPODOC&CC=CN&NR=115259656A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>IWASAKI NANA</creatorcontrib><title>Optical glass, preform and optical element</title><description>The invention provides optical glass, a preform and an optical element. Provided is an optical glass which has a refractive index and an Abbe number within a desired range and is suitable for an optical element that contributes to light weight and stability of an optical device. The optical glass contains, in mass%, 15.0 to 35.0% of a B2O3 component, 20.0 to 41.58% of a La2O3 component, 3.0% or less of an Nb2O5 component, 3.0% or less of a WO3 component, 0.1% or less of a Ta2O5 component, and 6.00% or less of a ZrO2 component, has a refractive index of 1.80 or more, an Abbe number of 35 to 40, and a specific gravity of 4.80 or less, the mass sum of an Ln2O3 component is 20.0 to 41.58%, Ln is one or more selected from La, Gd, Y, and Yb, and (Nb2O5 + WO3)/(La2O3 + Gd2O3 + Ta2O5) is 0.05 or less.
光学玻璃、预成型体及光学元件。更廉价地提供光学玻璃，折射率及阿贝数在期望的范围内，适合于有助于光学设备的轻质化稳定的光学元件。光学玻璃按质量％计含有15.0～35.0％的B2O3成分、20.0％～41.58％的La2O3成分，Nb2O5成分的含量为3.0％以下，WO3成分为3.0％以下，Ta2O5成分为0.1％以下，ZrO2成分为6.00％以下，光学玻璃具有1.80以上的折射率、35～40的阿贝数和4.80以下的比重，Ln2O3成分的</description><subject>CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUSENAMELS</subject><subject>CHEMISTRY</subject><subject>GLASS</subject><subject>JOINING GLASS TO GLASS OR OTHER MATERIALS</subject><subject>METALLURGY</subject><subject>MINERAL OR SLAG WOOL</subject><subject>SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS,MINERALS OR SLAGS</subject><subject>SURFACE TREATMENT OF GLASS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2022</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZNDyLyjJTE7MUUjPSSwu1lEoKEpNyy_KVUjMS1HIh0ql5qTmpuaV8DCwpiXmFKfyQmluBkU31xBnD93Ugvz41OKCxOTUvNSSeGc_Q0NTI1NLM1MzR2Ni1AAAFFso1w</recordid><startdate>20221101</startdate><enddate>20221101</enddate><creator>IWASAKI NANA</creator><scope>EVB</scope></search><sort><creationdate>20221101</creationdate><title>Optical glass, preform and optical element</title><author>IWASAKI NANA</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_CN115259656A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>chi ; eng</language><creationdate>2022</creationdate><topic>CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUSENAMELS</topic><topic>CHEMISTRY</topic><topic>GLASS</topic><topic>JOINING GLASS TO GLASS OR OTHER MATERIALS</topic><topic>METALLURGY</topic><topic>MINERAL OR SLAG WOOL</topic><topic>SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS,MINERALS OR SLAGS</topic><topic>SURFACE TREATMENT OF GLASS</topic><toplevel>online_resources</toplevel><creatorcontrib>IWASAKI NANA</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>IWASAKI NANA</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Optical glass, preform and optical element</title><date>2022-11-01</date><risdate>2022</risdate><abstract>The invention provides optical glass, a preform and an optical element. Provided is an optical glass which has a refractive index and an Abbe number within a desired range and is suitable for an optical element that contributes to light weight and stability of an optical device. The optical glass contains, in mass%, 15.0 to 35.0% of a B2O3 component, 20.0 to 41.58% of a La2O3 component, 3.0% or less of an Nb2O5 component, 3.0% or less of a WO3 component, 0.1% or less of a Ta2O5 component, and 6.00% or less of a ZrO2 component, has a refractive index of 1.80 or more, an Abbe number of 35 to 40, and a specific gravity of 4.80 or less, the mass sum of an Ln2O3 component is 20.0 to 41.58%, Ln is one or more selected from La, Gd, Y, and Yb, and (Nb2O5 + WO3)/(La2O3 + Gd2O3 + Ta2O5) is 0.05 or less.
光学玻璃、预成型体及光学元件。更廉价地提供光学玻璃，折射率及阿贝数在期望的范围内，适合于有助于光学设备的轻质化稳定的光学元件。光学玻璃按质量％计含有15.0～35.0％的B2O3成分、20.0％～41.58％的La2O3成分，Nb2O5成分的含量为3.0％以下，WO3成分为3.0％以下，Ta2O5成分为0.1％以下，ZrO2成分为6.00％以下，光学玻璃具有1.80以上的折射率、35～40的阿贝数和4.80以下的比重，Ln2O3成分的</abstract><oa>free_for_read</oa></addata></record> |
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| language | chi ; eng |
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| subjects | CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUSENAMELS CHEMISTRY GLASS JOINING GLASS TO GLASS OR OTHER MATERIALS METALLURGY MINERAL OR SLAG WOOL SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS,MINERALS OR SLAGS SURFACE TREATMENT OF GLASS |
| title | Optical glass, preform and optical element |
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