Patents by Inventor Bo Kuang
Bo Kuang has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20240076227Abstract: An optical glass, wherein components thereof are represented by weight percentage, including: 1-15% of SiO2; 5-20% of B2O3; 25-50% of La2O3; 1-12% of ZrO2; 5-20% of TiO2; 6-35% of RO, and the RO is total content of MgO, CaO, SrO, and BaO. Through rational component design, the optical glass has low density while having desired refractive index and Abbe number, which meets the lightweight application of optical instruments.Type: ApplicationFiled: August 8, 2023Publication date: March 7, 2024Applicant: CDGM GLASS CO., LTDInventor: Bo KUANG
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Publication number: 20240067557Abstract: An optical glass, wherein components thereof are represented by weight percentage, including: 1-12% of SiO2; 3-18% of B2O3; 45-65% of La2O3; 1-13% of Y2O3; 1-13% of ZrO2; 3-18% of Nb2O5; 5-20% of TiO2. Through rational component design, the optical glass has excellent chemical stability while having desired refractive index and Abbe number.Type: ApplicationFiled: August 8, 2023Publication date: February 29, 2024Applicant: CDGM GLASS CO., LTDInventor: Bo KUANG
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Publication number: 20230202910Abstract: An environment-friendly glass material, including components like SiO2, ZnO, alkali metal oxide and S, but does not contain Cd, wherein when the thickness of the environment-friendly glass material is 3 mm, the cutoff wavelength is above 550 nm, the transmittance at 800-850 nm is above 75%, the transmittance at 850-900 nm is above 80%, the transmittance at 900-1000 nm is above 83%, and the transmittance at 1000-2000 nm is above 85%. Through rational component design, the glass material of the present invention realizes environmental protection, UV and visible light cutoff, and high near-infrared transmittance at the same time.Type: ApplicationFiled: May 12, 2021Publication date: June 29, 2023Applicant: CDGM GLASS CO., LTDInventors: Lulu MAO, Liangzhen HAO, Sai LI, Bo KUANG, Peng ZHANG
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Publication number: 20230174409Abstract: A glass material, includes the following components by weight percentage: 50-70% of SiO2; 3-15% of B2O3; 0.5-10% of TiO2; 1-12% of ZnO; 0.5-10% of Al2O3; 5-22% of Na2O+K2O, wherein B2O3/SiO2 is 0.06-0.26, and (TiO2+ZnO)/Al2O3 is 0.5-8.0. Through rational component design, the glass material features high light transmittance and excellent chemical stability, so as to be able to be applied in the field of photosensitive device packaging.Type: ApplicationFiled: April 14, 2021Publication date: June 8, 2023Applicant: CDGM GLASS CO., LTDInventors: Lulu MAO, Liangzhen HAO, Bo KUANG
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Patent number: 11440835Abstract: A glass composition with high Young's modulus and specific modulus, wherein the glass composition includes the following components by weight percentage: 30-46% of SiO2, 0-6% of B2O3, 10-30% of Al2O3, 4-20% of CaO, 2-15% of MgO, and 13-32% of Y2O3. The glass composition uses common chemical raw materials. By reasonably arranging the contents of each component, the glass is good in heat resistance, chemical stability and press-molding devitrification resistance performance, low in high-temperature viscosity, convenient in bubble elimination, with specific modulus above 34 and Young's modulus above 100 GPa, and is suitable for hard disk substrate manufacturing, semiconductor sealing and other fields.Type: GrantFiled: November 19, 2018Date of Patent: September 13, 2022Assignee: CDGM GLASS CO., LTDInventors: Lulu Mao, Bo Kuang, Xiaochun Li, Wei Sun, Zhenyu Liu, Liangzhen Hao
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Patent number: 11440836Abstract: A glass composition with high Young's modulus and low density. The glass composition includes the following components by mole percentage: 52-70% of SiO2, 5-10% of B2O3, 5-15% of Al2O3, 8-20% of CaO and 5-18% of MgO. The glass composition uses common chemical raw materials. By reasonably designing the contents of each component, the glass composition has high Young's modulus, low density, good heat resistance and chemical stability, relatively low high-temperature viscosity, and low raw material cost. The glass composition is easy to eliminate stripes and bubbles during manufacturing, and is suitable for hard disk substrate manufacturing other fields that need high Young's modulus materials.Type: GrantFiled: April 10, 2019Date of Patent: September 13, 2022Assignee: CDGM GLASS CO., LTDInventors: Lulu Mao, Wei Sun, Bo Kuang
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Publication number: 20220212979Abstract: A glass with high thermal expansion coefficient and excellent thermal shock resistance, wherein the glass includes the following components by mole percentage: 55-80% of SiO2; 0-10% of B2O3; 0-10% of Al2O3; 2-20% of ZnO; 0-15% of MgO; and no more than 30% of Li2O+Na2O+K2O. Through the reasonable proportioning of components, the glass has high thermal expansion coefficient and excellent thermal shock resistance at the same time. The glass is suitable for chemical strengthening, and the glass product obtained after chemical strengthening has large surface stress and large depth of stress layer.Type: ApplicationFiled: April 2, 2020Publication date: July 7, 2022Applicant: CDGM GLASS CO., LTDInventors: Lulu MAO, Xuemei CHEN, Bo KUANG, Liangzhen HAO
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Publication number: 20210238081Abstract: A glass composition with high Young's modulus and low density. The glass composition includes the following components by mole percentage: 52-70% of SiO2, 5-10% of B2O3, 5-15% of Al2O3, 8-20% of CaO and 5-18% of MgO. The glass composition uses common chemical raw materials. By reasonably designing the contents of each component, the glass composition has high Young's modulus, low density, good heat resistance and chemical stability, relatively low high-temperature viscosity, and low raw material cost. The glass composition is easy to eliminate stripes and bubbles during manufacturing, and is suitable for hard disk substrate manufacturing other fields that need high Young's modulus materials.Type: ApplicationFiled: April 10, 2019Publication date: August 5, 2021Applicant: CDGM GLASS CO., LTDInventors: Lulu MAO, Wei SUN, Bo KUANG
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Publication number: 20210179480Abstract: A glass composition with high Young's modulus and specific modulus, wherein the glass composition includes the following components by weight percentage: 30-46% of SiO2, 0-6% of B2O3, 10-30% of Al2O3, 4-20% of CaO, 2-15% of MgO, and 13-32% of Y2O3. The glass composition uses common chemical raw materials. By reasonably arranging the contents of each component, the glass is good in heat resistance, chemical stability and press-molding devitrification resistance performance, low in high-temperature viscosity, convenient in bubble elimination, with specific modulus above 34 and Young's modulus above 100 GPa, and is suitable for hard disk substrate manufacturing, semiconductor sealing and other fields.Type: ApplicationFiled: November 19, 2018Publication date: June 17, 2021Applicant: CDGM GLASS CO., LTDInventors: Lulu MAO, Bo KUANG, Xiaochun LI, Wei SUN, Zhenyu LIU, Liangzhen HAO
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Patent number: 10822266Abstract: The invention provides an optical glass having excellent precision molding performance and having a refractive index of 1.46-1.53 and an Abbe number of 77-84. The optical glass comprises the following components based on cations in the molar percentage: P5+: 10-35%, Al3+: 10-35%, Ba2+: 1-20%, Sr2+: 10-35%, Ca2+: 1-20%, Gd3+: 0-10%, and Na+: 0-10%; the ratio of Sr2+/(Gd3++Na+) being 1-30; anions comprising F? and O2?, wherein the ratio F?/P5+ of F? content relative to the total molar percentage of anions to P5+ content relative to the total molar percentage of cations is 2.5 or more. The invention by rationally adjusting the proportions of the components, the molding performance of the optical glass is improved, and the problem that glass is broken and forms fogs during the molding process is solved, thereby the yield in manufacturing optical elements is improved.Type: GrantFiled: October 12, 2018Date of Patent: November 3, 2020Assignee: CDGM GLASS CO., LTD.Inventor: Bo Kuang
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Patent number: 10494294Abstract: The invention provides a high-refraction low-dispersion optical glass with refractive index of 1.76-1.80 and Abbe number of 47-51. The optical glass, comprising the following components by weight percentage: 0-3% of SiO2; 25-40% of B2O3; 20-40% of La2O3; 12-25% of Gd2O3; 6.5-15% of ZrO2; greater than 10% but less than or equal to 20% of ZnO; 0-5% of Ta2O5; 0-5% of Nb2O5; 0-10% of Li2O; less than 0.45 of (Ta2O5+Nb2O5)/(ZnO+Li2O); 0-10% of Y2O3; and below 625° C. of glass transition temperature Tg. With reasonable component ratio, the high-refraction low-dispersion optical glass favorable to precision molding with excellent transmittance can be easily enabled while realizing the required optical constant of the glass of the present invention.Type: GrantFiled: November 22, 2016Date of Patent: December 3, 2019Assignee: CDGM Glass Co., Ltd.Inventor: Bo Kuang
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Patent number: 10487004Abstract: The invention provides a high-refraction low-dispersion optical glass with refractive index of 1.76-1.80 and Abbe number of 47-51. The glass has an excellent transmittance when the content of Ta2O5 in glass component is reduced. The optical glass comprises the following components by molar percentage: 40-65% of B2O3; 6-21% of La2O3; 1-15% of Gd2O3; greater than 6.5% but less than or equal to 15% of ZrO2; ad 10-28% of ZnO. According to the present invention, the transmittance of glass becomes excellent without introducing SnO2; the product cost is optimized by reducing the content of Ta2O5; with reasonable component ratio, the high-refraction low-dispersion optical glass in favor of precision molding and with excellent transmittance, as well as the glass preform and optical element made of the optical glass can be easily enabled while the required optical constant of the glass is realized.Type: GrantFiled: November 22, 2016Date of Patent: November 26, 2019Assignee: CDGM Glass Co., Ltd.Inventor: Bo Kuang
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Patent number: 10343947Abstract: The invention provides a high-refraction low-dispersion optical glass with low material cost, refractive index of 1.77-1.85, and Abbe number of 40-48, wherein the following components by weight percentage: 4-20% of SiO2, 8-24% of B2O3, 20-40% of La2O3, 11-30% of Gd2O3, 0-15% of Y2O3, 0-8% of TiO2, 0-8% of Ta2O5, more than 0 but less than or equal to 8% of Nb2O5, less than 1 of Ta2O5/Nb2O5, more than 0 but less than or equal to 15% of ZrO2, and 11-30% of ZnO. The invention reduces the content of Ta2O5 and optimizes the cost of raw materials; through rational composition design, the optical glass of the invention is conducive to precision molding while achieving the required optical constant, with excellent chemical stability. A glass preform and an optical element made of the optical glass are also disclosed.Type: GrantFiled: August 14, 2017Date of Patent: July 9, 2019Assignee: CDGM GLASS CO., LTDInventor: Bo Kuang
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Patent number: 10252934Abstract: A high-refraction low-dispersion optical glass with refractive index of 1.77-1.85 and Abbe number of 40-48, includes the following components by mole percentage: 5-25% of SiO2, 15-45% of B2O3, 5-25% of La2O3, 1-20% of Gd2O3, 0-10% of Y2O3, 0-8% of TiO2, 0-8% of Ta2O5, more than 0 but less than or equal to 8% of Nb2O5, more than 0 but less than or equal to 15% of ZrO2, 18-40% of ZnO and 0.28-1.2 of SiO2/B2O3. The invention reduces the content of Ta2O5 and optimizes the cost of raw materials. Through rational composition design, the optical glass of the invention is conducive to precision molding while achieving the required optical constant, with excellent chemical stability. A glass preform and an optical element made of the optical glass are also disclosed.Type: GrantFiled: August 14, 2017Date of Patent: April 9, 2019Assignee: CDGM GLASS CO., LTDInventor: Bo Kuang
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Publication number: 20190062199Abstract: The invention provides a high-refraction low-dispersion optical glass with refractive index of 1.76-1.80 and Abbe number of 47-51. The optical glass, comprising the following components by weight percentage: 0-3% of SiO2; 25-40% of B2O3; 20-40% of La2O3; 12-25% of Gd2O3; 6.5-15% of ZrO2; greater than 10% but less than or equal to 20% of ZnO; 0-5% of Ta2O5; 0-5% of Nb2O5; 0-10% of Li2O; less than 0.45 of (Ta2O5+Nb2O5)/(ZnO+Li2O); 0-10% of Y2O3; and below 625° C. of glass transition temperature Tg. With reasonable component ratio, the high-refraction low-dispersion optical glass favorable to precision is molding with excellent transmittance can be easily enabled while realizing the required optical constant of the glass of the present invention.Type: ApplicationFiled: November 22, 2016Publication date: February 28, 2019Inventor: Bo KUANG
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Publication number: 20190047901Abstract: The invention provides an optical glass having excellent precision molding performance and having a refractive index of 1.46-1.53 and an Abbe number of 77-84. The optical glass comprises the following components based on cations in the molar percentage: P5+: 10-35%, Al3+: 10-35%, Ba2+: 1-20%, Sr2+: 10-35%, Ca2+: 1-20%, Gd3+: 0-10%, and Na+: 0-10%; the ratio of Sr2+/(Gd3++Na+) being 1-30; anions comprising F? and O2?, wherein the ratio F?/P5+ of F? content relative to the total molar percentage of anions to P5+ content relative to the total molar percentage of cations is 2.5 or more. The invention by rationally adjusting the proportions of the components, the molding performance of the optical glass is improved, and the problem that glass is broken and forms fogs during the molding process is solved, thereby the yield in manufacturing optical elements is improved.Type: ApplicationFiled: October 12, 2018Publication date: February 14, 2019Inventor: Bo KUANG
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Publication number: 20190031556Abstract: The invention provides a high-refraction low-dispersion optical glass with refractive index of 1.76-1.80 and Abbe number of 47-51. The glass has an excellent transmittance when the content of Ta2O5 in glass component is reduced. The optical glass comprises the following components by molar percentage: 40-65% of B2O3; 6-21% of La2O3; 1-15% of Gd2O3; greater than 6.5% but less than or equal to 15% of ZrO2; ad 10-28% of ZnO. According to the present invention, the transmittance of glass becomes excellent without introducing SnO2; the product cost is optimized by reducing the content of Ta2O5; with reasonable component ratio, the high-refraction low-dispersion optical glass in favor of precision molding and with excellent transmittance, as well as the glass preform and optical element made of the optical glass can be easily enabled while the required optical constant of the glass is realized.Type: ApplicationFiled: November 22, 2016Publication date: January 31, 2019Inventor: Bo Kuang
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Patent number: 10160686Abstract: The invention provides an optical glass having excellent precision molding performance and having a refractive index of 1.46-1.53 and an Abbe number of 77-84. The optical glass comprises the following components based on cations in the molar percentage: P5+: 10-35%, Al3+: 10-35%, Ba2+: 1-20%, Sr2+: 10-35%, Ca2+: 1-20%, Gd3+: 0-10%, and Na+: 0-10%; the ratio of Sr2+/(Gd3++Na+) being 1-30; anions comprising F? and O2?, wherein the ratio F?/P5+ of F? content relative to the total molar percentage of anions to P5+ content relative to the total molar percentage of cations is 2.5 or more. The invention by rationally adjusting the proportions of the components, the molding performance of the optical glass is improved, and the problem that glass is broken and forms fogs during the molding process is solved, thereby the yield in manufacturing optical elements is improved.Type: GrantFiled: June 23, 2017Date of Patent: December 25, 2018Assignee: CDGM GLASS CO., LTD.Inventor: Bo Kuang
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Patent number: 9950947Abstract: The invention provides an optical glass with rather low transition temperature, high transmittance, chemical stability and good devitrification resistance, wherein the refractive index is 1.60-1.65 and the Abbe number is 62-66. The optical glass comprises, by weight percentage, 30-50% of P2O5, 35-50% of BaO, 2-6% of B2O3, 0-5% of La2O3, 0-5% of Gd2O3, 0.1-5% of Al2O3, 0.1-5% of Li2O, 2-10% of MgO, and 2-10% of CaO. According to the present invention, P2O5 is applied as the network generation body of glass so as to give high transmittance to the glass; a large amount of BaO is a key component for improving the transmittance of glass while improving the refractive index and weather durability of glass, and also the advantages of low transition temperature, good chemical stability and good devitrification resistance are provided.Type: GrantFiled: January 16, 2015Date of Patent: April 24, 2018Assignee: CDGM GLASS CO., LTDInventor: Bo Kuang
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Publication number: 20180086658Abstract: The invention provides a high-refraction low-dispersion optical glass with low material cost, refractive index of 1.77-1.85, and Abbe number of 40-48, wherein the following components by weight percentage: 4-20% of SiO2, 8-24% of B2O3, 20-40% of La2O3, 11-30% of Gd2O3, 0-15% of Y2O3, 0-8% of TiO2, 0-8% of Ta2O5, more than 0 but less than or equal to 8% of Nb2O5, less than 1 of Ta2O5/Nb2O5, more than 0 but less than or equal to 15% of ZrO2, and 11-30% of ZnO. The invention reduces the content of Ta2O5 and optimizes the cost of raw materials; through rational composition design, the optical glass of the invention is conducive to precision molding while achieving the required optical constant, with excellent chemical stability. A glass preform and an optical element made of the optical glass are also disclosed.Type: ApplicationFiled: August 14, 2017Publication date: March 29, 2018Applicant: CDGM GLASS CO., LTDInventor: Bo KUANG