Process for preparation of crystallized glass for information recording disk
    21.
    发明授权
    Process for preparation of crystallized glass for information recording disk 失效
    用于制备信息记录盘的结晶玻璃的方法

    公开(公告)号:US06599606B1

    公开(公告)日:2003-07-29

    申请号:US09612629

    申请日:2000-07-07

    申请人: Xuelu Zou

    发明人: Xuelu Zou

    IPC分类号: G11B582

    摘要: Disclosed is a process for preparation of crystallized glass obtained by making a glass containing TiO2 subjected to a phase separation step and a crystallization step, where the phase separation step has heat treatment of the glass at a temperature in a range from a temperature of the glass transition temperature Tg (Tg−30° C.) to a temperature 60° C. higher than the glass transition temperature Tg (Tg+60° C.). There are also disclosed a crystallized glass for information recording disk composed of the crystallized glass obtained by the preparation process, where a mean particle size of the crystal particles is in a range of equal to or less than 100 nm, or where a transparency at a wavelength of 600 nm is 40% or higher; and an information recording disk, composed of the glass, having a polished surface with a surface roughness Ra (JIS B0601) in a range from 0.1 to 0.5 nm.

    摘要翻译: 公开了一种制备结晶玻璃的方法,所述结晶玻璃通过制备经过相分离步骤和结晶步骤的含有TiO 2的玻璃而获得,其中相分离步骤在玻璃的温度范围内的温度下对玻璃进行热处理, 转变温度Tg(Tg-30℃)至比玻璃化转变温度Tg(Tg + 60℃)高60℃的温度。 还公开了一种用于信息记录盘的结晶玻璃,其由通过制备方法获得的结晶玻璃构成,其中晶体颗粒的平均粒度在等于或小于100nm的范围内,或者其中透明度为 600nm的波长为40%以上; 以及由具有表面粗糙度Ra(JIS B0601)的抛光面在0.1〜0.5nm范围内的玻璃构成的信息记录盘。

    Disc substrates for information recording discs and magnetic discs
    22.
    发明授权
    Disc substrates for information recording discs and magnetic discs 有权
    用于信息记录盘和磁盘的盘基片

    公开(公告)号:US06214429B1

    公开(公告)日:2001-04-10

    申请号:US09222869

    申请日:1998-12-30

    IPC分类号: B32B302

    摘要: Disclosed is disc substrate consisting of SiO2—Al2O3—RO (RO=divalent metal) glasses having high specific elastic modulus of 36×106 Nm/kg or more or high Young's modulus of 110 GPa or more, high transition temperature of 700° C. or higher (high heat resistance), excellent surface smoothness (surface roughness Ra

    摘要翻译: 公开了具有高比弹性模量为36×10 6 Nm / kg以上或更高的杨氏模量为110GPa以上,高转变温度为700℃以上的SiO 2 -Al 2 O 3 -RO(RO =二价金属) (高耐热性),优异的表面平滑度(表面粗糙度Ra <5)和高强度。 具有高比弹性模量或高杨氏模量和高强度的基材能够实现更薄的磁盘并防止磁盘的破坏。 由于由玻璃构成的玻璃基板具有优异的耐热性和平坦性,所以可以对基板进行热处理,以提高磁性层特性,并实现较小的磁头飞行高度,即较高的记录密度。

    Method for manufacturing optical glass element
    23.
    发明授权
    Method for manufacturing optical glass element 有权
    光学玻璃元件的制造方法

    公开(公告)号:US08826695B2

    公开(公告)日:2014-09-09

    申请号:US12295611

    申请日:2007-03-28

    摘要: A method for manufacturing an optical glass element, comprising: annealing a press-molded product obtained by press molding into a lens shape a glass material comprised of a core portion comprised of an optical glass (first glass) with a transition temperature of 550° C. or higher and a covering portion comprised of a second glass covering the surface of said core portion; and then removing the covering layer from the surface of the press-molded product to obtain an optical glass element. To provide a method for manufacturing high-optical-performance mold-pressed lenses in which the defective external appearance of optical elements comprised of high-temperature glass materials with a Tg of 550° C. or higher is prevented.

    摘要翻译: 一种光学玻璃元件的制造方法,其特征在于,包括:将通过冲压成型获得的加压成型品退火成透镜形状的玻璃材料,该玻璃材料由包含550℃的转变温度的光学玻璃(第一玻璃)构成的芯部 覆盖部分由覆盖所述芯部的表面的第二玻璃构成; 然后从压制成型品的表面除去覆盖层,得到光学玻璃元件。 提供一种制造高光学性能的模压透镜的方法,其中防止由Tg为550℃以上的高温玻璃材料构成的光学元件的外观不良。

    Glass substrate for information recording medium and magnetic information recording medium to which the glass substrate is applied
    24.
    发明授权
    Glass substrate for information recording medium and magnetic information recording medium to which the glass substrate is applied 有权
    用于信息记录介质的玻璃基板和应用玻璃基板的磁信息记录介质

    公开(公告)号:US08697592B2

    公开(公告)日:2014-04-15

    申请号:US13490511

    申请日:2012-06-07

    IPC分类号: C03C3/085 C03C3/091 G11B7/241

    摘要: Disclosed are a glass substrate for an information recording medium, having excellent scratch resistance and a light weight and having high fracture toughness, the glass substrate having a fragility index value, measured in water, of 12 μm−1/2 or less or having a fragility index value, measured in an atmosphere having a dew point of −5° C. or lower, of 7 μm−1/2 or less, or the glass substrate comprising, by mol %, 40 to 75% of SiO2, 2 to 45% of B2O3 and/or Al2O3 and 0 to 40% of R′2O in which R′ is at least one member selected from the group consisting of Li, Na and K), wherein the total content of SiO2, B2O3, Al2O3 and R′2O is at least 90 mol %, and a magnetic information recording medium comprising a magnetic recording layer formed on the glass substrate.

    摘要翻译: 公开了一种用于信息记录介质的玻璃基板,具有优异的耐擦伤性和重量轻并且具有高断裂韧性,玻璃基板在水中测得的脆性指数值为12μm-1/2或更小,或具有 在露点为-5℃以下的气氛中测定的7μm-1/2以下的脆性指数值,或摩尔%为40〜75%的SiO 2的玻璃基板,2〜 45%的B 2 O 3和/或Al 2 O 3和0〜40%的R'2O,其中R'为选自Li,Na和K中的至少一种),其中SiO 2,B 2 O 3,Al 2 O 3和 R'2O为90摩尔%以上,磁性信息记录媒体包含形成在玻璃基板上的磁记录层。

    OPTICAL GLASS
    25.
    发明申请
    OPTICAL GLASS 有权
    光学玻璃

    公开(公告)号:US20130210604A1

    公开(公告)日:2013-08-15

    申请号:US13845229

    申请日:2013-03-18

    IPC分类号: C03C3/068

    摘要: An optical glass having high-refractivity and low-dispersion properties and containing, by mol %, 0.1 to 40% of SiO2, 10 to 50% of B2O3, wherein the mass ratio of the content of SiO2 to the content of B2O3, SiO2/B2O3, is 1 or less, 0.5 to 22% of ZnO, 5 to 50% of La2O3, and optionally other ingredients. The optical glass has a refractive index nd of 1.86 to 1.95 and an Abbe's number vd of (2.36−nd)/0.014 or more but less than 38, and a glass transition temperature of equal to or greater than 640° C.

    摘要翻译: 具有高折射率和低分散性的光学玻璃,其摩尔%含有SiO 2的0.1〜40%,B 2 O 3的10〜50%,其中SiO 2含量与B 2 O 3的含量,SiO 2 / B2O3为1以下,0.5〜22%的ZnO,5〜50%的La2O3,以及任意其它成分。 光学玻璃的折射率nd为1.86〜1.95,阿贝数vd为(2.36-nd)/0.014以上且小于38,玻璃化转变温度为640℃以上。

    Glass material for press molding, method for manufacturing optical glass element using same, and optical glass element
    26.
    发明授权
    Glass material for press molding, method for manufacturing optical glass element using same, and optical glass element 有权
    用于压制成型的玻璃材料,使用该玻璃材料的光学玻璃元件的制造方法以及光学玻璃元件

    公开(公告)号:US08486536B2

    公开(公告)日:2013-07-16

    申请号:US13320466

    申请日:2010-05-14

    摘要: Disclosed is a glass material for press forming providing an optical element having a sufficient optical performance without surface cracks, cloudiness, scratches, and the like even when the glass material contains a highly reactive component. Also disclosed are an optical element having a sufficient optical performance without surface cracks, cloudiness, scratches, and the like and a method for manufacturing the same. Specifically disclosed is a glass material for press forming which comprises a core portion composed of multicomponent optical glass and a surface glass layer covering at least a region serving as an optical functional surface of the core portion. The surface glass layer contains more than 90 mass % of SiO2, and the thickness of the layer is less than five nanometers. Also specifically disclosed is a method for manufacturing a glass optical element by heating the glass material and by press forming the softened glass material using a forming die. Yet also specifically disclosed is a press formed glass optical element having a core portion composed of multicomponent optical glass and a surface glass layer covering at least an optical functional surface of the core portion. The surface glass layer contains more than 90 mass % of SiO2, and the thickness of the layer is less than five nanometers.

    摘要翻译: 公开了一种用于压制成形的玻璃材料,即使当玻璃材料含有高反应性组分时,也提供具有足够光学性能的光学元件,而没有表面裂纹,浑浊,划痕等。 还公开了具有足够的光学性能而没有表面裂纹,浑浊,划痕等的光学元件及其制造方法。 具体公开了一种用于压制成形的玻璃材料,其包括由多组分光学玻璃构成的芯部和至少覆盖用作芯部的光学功能表面的区域的表面玻璃层。 表面玻璃层含有超过90质量%的SiO 2,层的厚度小于5纳米。 还具体公开了一种通过加热玻璃材料并通过使用成形模冲压成形软化玻璃材料来制造玻璃光学元件的方法。 还具体公开了一种压制成型玻璃光学元件,其具有由多组分光学玻璃构成的芯部和至少覆盖芯部的光学功能表面的表面玻璃层。 表面玻璃层含有超过90质量%的SiO 2,层的厚度小于5纳米。

    GLASS SUBSTRATE FOR INFORMATION RECORDING MEDIUM AND MAGNETIC INFORMATION RECORDING MEDIUM TO WHICH THE GLASS SUBSTRATE IS APPLIED
    27.
    发明申请
    GLASS SUBSTRATE FOR INFORMATION RECORDING MEDIUM AND MAGNETIC INFORMATION RECORDING MEDIUM TO WHICH THE GLASS SUBSTRATE IS APPLIED 有权
    用于记录玻璃基板的信息记录介质和磁信息记录介质的玻璃基板

    公开(公告)号:US20130040169A1

    公开(公告)日:2013-02-14

    申请号:US13490511

    申请日:2012-06-07

    摘要: Disclosed are a glass substrate for an information recording medium, having excellent scratch resistance and a light weight and having high fracture toughness, the glass substrate having a fragility index value, measured in water, of 12 μm−1/2 or less or having a fragility index value, measured in an atmosphere having a dew point of −5° C. or lower, of 7 μm−1/2 or less, or the glass substrate comprising, by mol %, 40 to 75% of SiO2, 2 to 45% of B2O3 and/or Al2O3 and 0 to 40% of R′2O in which R′ is at least one member selected from the group consisting of Li, Na and K), wherein the total content of SiO2, B2O3, Al2O3 and R′2O is at least 90 mol %, and a magnetic information recording medium comprising a magnetic recording layer formed on the glass substrate.

    摘要翻译: 公开了一种用于信息记录介质的玻璃基板,具有优异的耐擦伤性和重量轻并且具有高断裂韧性,玻璃基板在水中测得的脆性指数值为12μm-1/2或更小,或具有 在露点为-5℃以下的气氛中测定的7μm-1/2以下的脆性指数值,或摩尔%为40〜75%的SiO 2的玻璃基板,2〜 45%的B 2 O 3和/或Al 2 O 3和0〜40%的R'2O,其中R'为选自Li,Na和K中的至少一种),其中SiO 2,B 2 O 3,Al 2 O 3和 R'2O为90摩尔%以上,磁性信息记录媒体包含形成在玻璃基板上的磁记录层。

    Lens and process for the production thereof
    28.
    发明授权
    Lens and process for the production thereof 有权
    镜片及其制作方法

    公开(公告)号:US07974020B2

    公开(公告)日:2011-07-05

    申请号:US11902957

    申请日:2007-09-26

    申请人: Xuelu Zou

    发明人: Xuelu Zou

    IPC分类号: G02B7/02

    摘要: A lens formed of a fluorophosphate glass, which has an optical-function surface and has a positioning reference surface for positioning and fixing the lens in the fixing tool (and also for determining the direction in the direction of the optical axis), so that the above optical-function surface is not damaged, both the optical-function surface and the positioning reference surface being transfer surfaces formed by the transfer of form of a molding surface of a mold according to precision press-molding.

    摘要翻译: 由氟磷酸盐玻璃形成的透镜,其具有光学功能表面并且具有用于将透镜定位和固定在定影工具中的定位参考表面(并且还用于确定沿光轴方向的方向),使得 上述光学功能面不受损伤,光学功能面和定位基准面是通过精密加压成型将模具成形面的形状转印而形成的转印面。

    OPTICAL GLASS
    30.
    发明申请
    OPTICAL GLASS 有权
    光学玻璃

    公开(公告)号:US20110028300A1

    公开(公告)日:2011-02-03

    申请号:US12865574

    申请日:2009-01-22

    IPC分类号: C03C3/068 C03B11/00 C03C19/00

    摘要: An optical glass comprising, by mol %, 0.1 to 40% of SiO2, 10 to 50% of B2O3, 0 to 10% of total of Li2O, Na2O and K2O, 0 to 10% of total of MgO, CaO, SrO and BaO, 0.5 to 22% of ZnO, 5 to 50% of La2O3, 0.1 to 25% of Gd2O3, 0.1 to 20% of Y2O3, 0 to 20% of Yb2O3, 0 to 25% of ZrO2, 0 to 25% of TiO2, 0 to 20% of Nb2O5, 0 to 10% of Ta2O5, over 0.1% but not more than 20% of WO3, 0 to less than 3% of GeO2, 0 to 10% of Bi2O3, and 0 to 10% of Al2O3, the mass ratio of the content of SiO2 to the content of B2O3, SiO2/B2O3, being 1 or less, the optical glass having a refractive index nd of 1.86 to 1.95 and an Abbe's number νd of (2.36−nd)/0.014 or more but less than 38.

    摘要翻译: 一种光学玻璃,其中,SiO 2为0.1〜40%,B 2 O为10〜50%,Li 2 O,Na 2 O,K 2 O为0〜10%,MgO,CaO,SrO和BaO为0〜10% ,0.5〜22%的ZnO,5〜50%的La2O3,0.1〜25%的Gd2O3,0.1〜20%的Y2O3,0〜20%的Yb2O3,0〜25%的ZrO2,0〜25%的TiO2, 0〜20%的Nb 2 O 5,0〜10%的Ta 2 O 5,超过0.1%但不超过20%的WO 3,0〜小于3%的GeO 2,0〜10%的Bi 2 O 3,0〜10的Al 2 O 3, 折射率nd为1.86〜1.95的光学玻璃和(2.36-nd)/ 0.014的阿贝值&ngr; d的SiO 2含量与B 2 O 3,SiO 2 / B 2 O 3的含量为1以下的质量比 或更多但小于38。