公开(公告)号：US20240343634A1

公开(公告)日：2024-10-17

申请号：US18294432

申请日：2022-08-17

申请人： CDGM GLASS CO., LTD

发明人： Bo KUANG

IPC分类号： C03C3/068 ,  C03C3/064 ,  C03C4/20

CPC分类号： C03C3/068 ,  C03C3/064 ,  C03C4/20 ,  C03C2204/00

摘要： An optical glass, wherein components of the optical glass are represented by weight percentage, including: 12-30% of SiO2; 6-20% of Nb2O5; 15-35% of TiO2; 15-35% of BaO; 1-10% of ZrO2. Through rational component proportion, the optical glass obtains the optical glass with a refractive index of 1.89-1.96 and an Abbe number of 20-28 in silicate (borate) system; the cost for raw material and production of this optical glass is lower, and the environmental load is smaller.

公开(公告)号：US20240067557A1

公开(公告)日：2024-02-29

申请号：US18231410

申请日：2023-08-08

申请人： CDGM GLASS CO., LTD

发明人： Bo KUANG

IPC分类号： C03C3/068

CPC分类号： C03C3/068

摘要： 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.

公开(公告)号：US11680009B2

公开(公告)日：2023-06-20

申请号：US16768633

申请日：2018-11-19

申请人： CDGM GLASS CO., LTD

发明人： Tianlai Yu ,  Baoping Yuan ,  Xiaobing Nie

IPC分类号： C03C10/12 ,  C03C10/14 ,  C03C10/00

CPC分类号： C03C10/0027 ,  C03C10/0009 ,  C03C10/0054 ,  C03C2204/00

摘要： A glass ceramic contains the following components by wt %: 60 to 80% of SiO2; 4 to 20% of Al2O3; 0 to 15% of Li2O; more than 0 but less than or equal to 12% of Na2O; 0 to 5% of K2O; more than 0 but less than or equal to 5% of ZrO2; 0 to 5% of P2O5; and 0 to 10% of TiO2. A crystalline phase contains at least one of R2SiO3, R2Si2O5, R2TiO3, R4Ti5O12, R3PO3, RAlSi2O6, RAlSiO4O10, R2Al2Si2O8, R4Al4Si5O18, quartz and quartz solid solution. With a liquidus temperature below 1,450° C., a thermal conductivity above 2 w/m·k, and a Vickers hardness above 600 kgf/mm2, the glass ceramic is applicable to portable electronic devices and optical devices.

公开(公告)号：US11332404B2

公开(公告)日：2022-05-17

申请号：US17039317

申请日：2020-09-30

申请人： CDGM GLASS CO., LTD

发明人： Tianlai Yu ,  Baoping Yuan ,  Zhenyu Liu

IPC分类号： C03C10/04 ,  C03C10/14 ,  C03C10/00

摘要： The present invention discloses a microcrystalline glass, a microcrystalline glass product, and a manufacturing method therefor. The main crystal phase of the microcrystalline glass comprises lithium silicate and a quartz crystal phase. The haze of the microcrystalline glass of the thickness of 0.55 mm is below 0.6%. The microcrystalline glass comprises the following components in percentage by weight: SiO2: 65-85%; Al2O3: 1-15%; Li2O: 5-15%; ZrO2: 0.1-10%; P2O5: 0.1-10%; K2O: 0-10%; MgO: 0-10%; ZnO: 0-10%. A four-point bending strength of the microcrystalline glass product is more than 600 Mpa.

公开(公告)号：US10252939B2

公开(公告)日：2019-04-09

申请号：US15514023

申请日：2015-09-22

申请人： CDGM GLASS CO., LTD

发明人： Baoping Yuan ,  Tianlai Yu ,  Xuejian Su

IPC分类号： C03C10/02 ,  C03B32/02 ,  C03C10/00 ,  C03C3/085 ,  C03C3/095 ,  C03C3/097

摘要： A high-hardness transparent glass ceramic and a preparation method therefor, wherein the components by weight percentage include: 55.0%-70.0% of SiO2, 15.0%-20.0% of Al2O3, 0%-10.0% of MgO, and 0%-12.5% of ZnO, necessarily including one of MgO or ZnO, and the crystallized glass thereof contains microcrystals of spinel crystal. In the present invention, a suitable precursor glass is subjected to thermal treatment, and microcrystals are separated from the glass substrate by crystallization, producing a glass ceramic having a Moh's hardness greater than 7 and a visible-light transparency rate greater than 80% through 1 mm of the glass. The glass ceramic of the invention overcomes the problem that ordinary optical glass is easy to be scratched. The present glass ceramic can be served as protective face for mobile phones, protective glass for optical instruments and in communications equipment, substrate for magnetic disks, LCD panel, or protective glass for other optoelectronic devices.

公开(公告)号：US09988299B2

公开(公告)日：2018-06-05

申请号：US15109263

申请日：2015-01-08

申请人： CDGM GLASS CO., LTD

发明人： Wei Sun

IPC分类号： C03C3/19 ,  C03C4/08 ,  C03C3/17 ,  G02B5/20 ,  G02B5/22 ,  G02B27/00

CPC分类号： C03C3/19 ,  C03C3/17 ,  C03C4/082 ,  C03C23/0075 ,  C03C2204/00 ,  G02B5/208 ,  G02B5/226 ,  G02B27/0025

摘要： The invention provides a glass composition with stronger bending strength and excellent transmission property in the visible range, containing the following cations with a total weight of over 90%: P5+, Al3+, B3+, R1+, R2+ and Cu2+, wherein the content of Cu2+ is 0.1-15%; the ratio of Cu2+/(P5++Al3+) is 0.01-0.15; the content of the anion O2− contained in the glass composition is up to over 97%; the bending strength of the glass composition is over 110 MPa; when the thickness of the glass composition is 0.3 mm, the spectral transmittance is more than or equal to 80% at a wavelength of 400 nm, the spectral transmittance is less than or equal to 25% at a wavelength of 700 nm, and the spectral transmittance is less than or equal to 25% at a wavelength of 1200 nm.

公开(公告)号：US09988296B2

公开(公告)日：2018-06-05

申请号：US15468474

申请日：2017-03-24

申请人： CDGM GLASS CO., LTD.

发明人： Wei Yuan

IPC分类号： C03C3/062 ,  C03C4/00 ,  C03C4/20

CPC分类号： C03C3/062 ,  C03C3/064 ,  C03C3/066 ,  C03C4/0092 ,  C03C4/20 ,  C03C2204/00 ,  G02B13/00

摘要： The present invention provides a high refractivity and high dispersion optical glass and optical element with small relative partial dispersion (Pg,F), high transmittance and good chemical stability. For optical glass, with anion as O2−, wherein a cation thereof contains the following components by weight percentage: 12-25% of Si4+; 58-75% of Nb5++W6++Zr4+; 8-25% of Li++Na++K+; 10% of Ba2+ or less. Based on the reasonable component design, the refractive index of the optical glass is 1.81-1.89, the Abbe number is 20-29, Pg,F is 0.5956-0.6199, and the corresponding wave length λ70 is below 450 nm when the transmittance reaches up to 70%. Therefore, the optical glass provided by the present invention is applicable to high-quality optical elements.

公开(公告)号：US20180016182A1

公开(公告)日：2018-01-18

申请号：US15546244

申请日：2016-04-06

申请人： CDGM GLASS CO., LTD

发明人： Wei SUN

IPC分类号： C03C3/068 ,  G02B3/00

CPC分类号： C03C3/068 ,  C03C2201/3411 ,  C03C2201/3417 ,  C03C2201/3452 ,  C03C2201/3488 ,  G02B1/00 ,  G02B1/118 ,  G02B3/0087 ,  G02B27/0062

摘要： An optical glass with high refractive index and low dispersion, having refractive index nd of 1.78-1.95, Abbe number vd of 32-50, and contains no GeO2, so it is not easily devitrified. An optical glass, represented by cation %, including: 1-20% of Si4+; 25-60% of B3+; 10-40% of La3+; 0-15% of Y3+; 0-20% of Nb5+; 0-15% of Ti4+; 0-10% of Ta5+; 0-5% of W6+; 0-15% of Zr4+; 0-10% of Zn2+; 0-10% of Bi3+. An optical glass with excellent transmittance, an optical glass preform and an optical element formed by the above optical glass. The optical element made by the above optical glass and the above glass preform or optical element blank, such as lens, can be used for optical systems.

公开(公告)号：US20170283307A1

公开(公告)日：2017-10-05

申请号：US15514023

申请日：2015-09-22

申请人： CDGM GLASS CO., LTD

发明人： Baoping YUAN ,  Tianlai YU ,  Xuejian SU

IPC分类号： C03C10/00 ,  C03B32/02

CPC分类号： C03C10/0045 ,  C03B32/02 ,  C03C3/085 ,  C03C3/095 ,  C03C3/097 ,  C03C2204/00

摘要： A high-hardness transparent glass ceramic and a preparation method therefor, wherein the components by weight percentage include: 55.0%-70.0% of SiO2, 15.0%-20.0% of Al2O3, 0%-10.0% of MgO, and 0%-12.5% of ZnO, necessarily including one of MgO or ZnO, and the crystallized glass thereof contains microcrystals of spinel crystal. In the present invention, a suitable precursor glass is subjected to thermal treatment, and microcrystals are separated from the glass substrate by crystallization, producing a glass ceramic having a Moh's hardness greater than 7 and a visible-light transparency rate greater than 80% through 1 mm of the glass. The glass ceramic of the invention overcomes the problem that ordinary optical glass is easy to be scratched. The present glass ceramic can be served as protective face for mobile phones, protective glass for optical instruments and in communications equipment, substrate for magnetic disks, LCD panel, or protective glass for other optoelectronic devices.

公开(公告)号：US09346704B2

公开(公告)日：2016-05-24

申请号：US14433989

申请日：2013-10-17

申请人： CDGM GLASS CO., LTD.

发明人： Bo Kuang

IPC分类号： C03C3/062 ,  C03C3/068

CPC分类号： C03C3/068

摘要： The invention provides a kind of high-precision molding optical glass, comprising 0.1-10 wt % of SiO2, 9-20 wt % of B2O3, 20-35 wt % of La2O3, 1-8 wt % of ZrO2, 5-20 wt % of ZnO, 1-10 wt % of Ta2O5, 5-15 wt % of Gd2O3, 0-2 wt % of TiO2, 1-10 wt % of Y2O3, 1-12 wt % of WO3, 0-3 wt % of Li2O and 0-1 wt % of Sb2O3. The optical glass provided in the invention features density less than 5.0 g/cm3, refractive index between 1.80 and 1.85, Abbe number between 40 and 45, transition temperature lower than 600° C., wavelength λ80 corresponding to the transmissivity of 80% below 415 nm, and upper limit of devitrification temperature below 1110° C., and is applicable to high-precision molding.

摘要翻译： 本发明提供一种高精度成型光学玻璃，其包含0.1-10重量％的SiO 2，9-20重量％的B 2 O 3，20-35重量％的La 2 O 3，1-8重量％的ZrO 2，5-20重量％ ％的ZnO，1-10重量％的Ta 2 O 5，5-15重量％的Gd 2 O 3，0-2重量％的TiO 2，1-10重量％的Y 2 O 3，1-12重量％的WO 3，0-3重量％ Li 2 O和0〜1重量％的Sb 2 O 3。 本发明提供的光学玻璃的密度小于5.0g / cm 3，折射率在1.80和1.85之间，阿贝数在40和45之间，转变温度低于600℃，波长λ80对应于80％以下的透射率低于415 nm，失透温度上限低于1110℃，适用于高精度成型。