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    • 21. 发明专利
    • Optical glass
    • 光学玻璃
    • JP2008222479A
    • 2008-09-25
    • JP2007061519
    • 2007-03-12
    • Ohara Inc株式会社オハラ
    • OGINO MICHIKOTOMOE HIROAKI
    • C03C3/068C03C3/15C03C3/155G02B1/00
    • G02B1/02C03C3/068C03C3/15
    • PROBLEM TO BE SOLVED: To provide optical glass having low liquid phase temperature, excellent light transmissivity in an infrared region, small intensity of fluorescence generated by the irradiation with ultraviolet ray or the like and excellent inner quality in a high refractive index low dispersion optical glass.
      SOLUTION: The optical glass has refractive index (nd) of ≥1.7 and Abbe number (γd) of ≥40 and contains ≥30% Ln
      2 O
      3 component (Ln is one or more kinds selected from Y, La and Gd) and 2 O
      3 and Sb
      2 O
      3 by mass expressed in terms of oxide. The optical glass has the ratio (Gd
      2 O
      3 /Ln
      2 O
      3 ) of Gd
      2 O
      3 content to total content of Ln
      2 O
      3 of ≤20%, contains B
      2 O
      3 as an essential component and had ≤1,100°C liquid phase temperature.
      COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:为了提供具有低液相温度,在红外区域中优异的透光率的光学玻璃,通过用紫外线等照射产生的小的荧光强度以及高折射率低的优异的内部质量 分散光学玻璃。

      解决方案:光学玻璃的折射率(nd)≥1.7,阿贝数(γd)≥40,含有≥30%的Ln 2 O 3 (Ln是选自Y,La和Gd中的一种或多种)和<0.1%As 2 3 和Sb 2 O 3质量%以氧化物计。 光学玻璃的Gd 的比例(Gd 2 O 3 / Ln 2 O 3 2 O 3 含量相对于≤20%的总含量,含有B 2 SB> O 3 作为必需组分,并具有≤1,100℃的液相温度。 版权所有(C)2008,JPO&INPIT

    • 22. 发明专利
    • Optical glass
    • 光学玻璃
    • JP2007051055A
    • 2007-03-01
    • JP2006195008
    • 2006-07-18
    • Ohara Inc株式会社オハラ
    • OGINO MICHIKOONOZAWA MASAHIRO
    • C03C3/16C03C3/064C03C3/066C03C3/17C03C3/19C03C3/21G02B1/00
    • PROBLEM TO BE SOLVED: To provide an optical glass which has a high refractive index, high dispersiveness, excellent precision press forming property, excellent transmittance, and excellent internal quality and can suppress a transmittance deterioration in aging.
      SOLUTION: The optical glass is a phosphate optical glass containing Pt of ≤1.5 ppm in the glass. When its specimen with a thickness of 10 mm, both faces of which are polished, is irradiated with an ultraviolet and/or visible light at a light receiving energy of ≤0.4 mW×cm
      -2 for ≥200 h, the difference of internal transmittance before and after irradiation (before irradiation-after irradiation) against a light with a wavelength of 420 nm is 0.1 or less in terms of a sample having a thickness of 10 mm.
      COPYRIGHT: (C)2007,JPO&INPIT
    • 解决的问题:提供一种折射率高,分散性高,压制成型性优异,透射率优异,内部品质优异的光学玻璃,能够抑制老化时的透光率劣化。

      解决方案:光学玻璃是在玻璃中含有≤1.5ppm的Pt的磷酸盐光学玻璃。 当其厚度为10mm的样品(其两面被抛光)用紫外线和/或可见光以≥0.4mW×cm×SP> -2 的光接收能量照射≥200 h,对于波长420nm的光照射前(照射后照射后)的内部透射率的差异,以厚度为10mm的样品为0.1以下。 版权所有(C)2007,JPO&INPIT

    • 23. 发明专利
    • 光学ガラス
    • 光学玻璃
    • JP2014196244A
    • 2014-10-16
    • JP2014137972
    • 2014-07-03
    • 株式会社オハラOhara Inc
    • ISHIOKA JUNKOOGINO MICHIKOONOZAWA MASAHIRO
    • C03C3/068C03C3/066G02B1/00
    • 【課題】使用環境の温度変化による結像特性影響を受けにくい、屈折率(nd)が1.75以上、かつ、アッベ数(&ngr;d)が35以上である、高屈折率低分散光学ガラスを提供する。【解決手段】SiO2、B2O3、La2O3を必須成分として含有させ、かつ構成成分の比率を調整することにより、−30〜+70℃の平均線膨張係数αと波長546.1nmにおける光弾性定数&bgr;の乗算α?&bgr;が130?10−12℃−1?nm?cm−1?Pa−1以下を実現する光学ガラスを得る。【選択図】なし
    • 要解决的问题:提供一种具有高折射率和低色散的光学玻璃,其在使用环境中的温度变化对成像特性的影响较小,折射率(nd)为1.75以上,阿贝数 (&ngr; d)为35以上。解决方案:获得如下特性的光学玻璃:乘法α×&bgr; 为130×10℃×nm×cm×Paor以下,α为-30〜70℃的平均线膨胀系数,&bgr; 是波长为546.1nm的光弹性常数,通过结合SiO,BO和LaOas的主要成分并控制结构成分的百分比来获得。
    • 26. 发明专利
    • Optical glass, and optical element
    • 光学玻璃和光学元件
    • JP2012017260A
    • 2012-01-26
    • JP2011227403
    • 2011-10-14
    • Ohara Inc株式会社オハラ
    • TSUCHIBUCHI NANAOGINO MICHIKO
    • C03C3/16C03C3/062C03C3/064C03C3/066C03C3/068C03C3/17C03C3/19C03C3/21C03C3/253G02B1/00
    • PROBLEM TO BE SOLVED: To provide optical glass which has a low Abbe number (ν) even though the refractive index (n) thereof is within a desired range, and which is highly transparent to visible light, and in which devitrification and clouding hardly occur upon production and working of the glass, and from which a preform material and an optical element are easily produced by polishing, and to provide an optical element.SOLUTION: The optical glass includes, in mass% based on the total mass of the glass in terms of oxides, 5.0 to 40.0% of a POcomponent, and 10.0 to 60.0% of an NbOcomponent. In the optical glass, the wavelength (λ) at which spectral transmittance shows 70% is at most 500 nm, and the optical glass has a liquid phase temperature of 500 to 1,200°C. Further, the optical element is composed of the optical glass as a matrix.
    • 要解决的问题:即使折射率(n d),提供具有低阿贝数(ν d )的光学玻璃 )在所需范围内,对可见光高度透明,并且在玻璃的制造和加工时几乎不发生失透和混浊,并且易于制造预成型体材料和光学元件 通过抛光,并提供光学元件。

      解决方案:光学玻璃以基于氧化物的玻璃的总质量的质量%计包含5.0〜40.0%的P 2 O 5 组件,以及10.0〜60.0%的Nb 2 O 5 组件。 在光学玻璃中,光谱透射率为70%的波长(λ 70”)为500nm以下,光学玻璃的液相温度为500〜1200℃ C。 此外,光学元件由作为基体的光学玻璃构成。 版权所有(C)2012,JPO&INPIT

    • 27. 发明专利
    • Method of manufacturing glass compact, optical element, and optical device
    • 制造玻璃紧固件,光学元件和光学装置的方法
    • JP2011246344A
    • 2011-12-08
    • JP2011100213
    • 2011-04-27
    • Ohara Inc株式会社オハラ
    • OGINO MICHIKOTSUCHIBUCHI NANA
    • C03B5/193C03B5/225C03C3/097C03C3/16C03C3/19C03C3/21C03C3/253G02B1/00
    • C03B5/193
    • PROBLEM TO BE SOLVED: To provide a method of manufacturing optical glass by which glass with less coloration can be obtained, wherein the glass especially contains an NbOcomponent as transition metal.SOLUTION: The method of manufacturing a glass compact includes a process of melting glass raw material containing the NbOcomponent as an essential component, and bubbling non-oxidizing gas in the molten glass. The manufacturing method uses a melting bath 11 for melting the glass raw material S, a clarifying bath 12 communicating with the melting bath 11 and clarifying molten glass G, and a stirring bath 13 communicating with the clarifying bath 12 and stirring the molten glass G, and preferably includes a melting process for melting the glass raw material S in the melting bath 11, a clarifying process for clarifying the molten glass raw material S in the clarifying bath 12, a stirring process for stirring the clarified molten glass G in the stirring bath 13, a flowing-out process for flowing out the stirred molten glass G, and a forming process for forming the flowed glass.
    • 要解决的问题:提供一种制造光学玻璃的方法,通过该方法可以获得具有较少着色的玻璃,其中玻璃特别包含Nb 2 O 5 组件作为过渡金属。 解决方案:制造玻璃压坯的方法包括熔化包含Nb 5 O 5 组分作为必需组分,并在熔融玻璃中鼓泡非氧化气体。 该制造方法使用用于熔融玻璃原料S的熔融浴11,与熔融浴11连通并澄清熔融玻璃G的澄清浴12和与澄清浴12连通并搅拌熔融玻璃G的搅拌槽13, 并且优选包括用于熔化熔融槽11中的玻璃原料S的熔融方法,澄清浴12中的熔融玻璃原料S的澄清处理,用于搅拌澄清的熔融玻璃G在搅拌槽中的搅拌方法 13,用于流出搅拌的熔融玻璃G的流出过程,以及用于形成流动玻璃的成形工序。 版权所有(C)2012,JPO&INPIT
    • 28. 发明专利
    • Production method of optical glass and optical instrument
    • 光学玻璃和光学仪器的生产方法
    • JP2011153042A
    • 2011-08-11
    • JP2010015517
    • 2010-01-27
    • Ohara Inc株式会社オハラ
    • TSUCHIBUCHI NANAOGINO MICHIKOMISAWA MASATOSHIANDO JUNICHI
    • C03B5/18C03B5/235C03C3/064C03C3/066C03C3/068C03C3/16C03C3/17C03C3/19C03C3/21C03C3/253G02B1/00
    • C03B5/187
    • PROBLEM TO BE SOLVED: To provide a production method of optical glass for obtaining a P
      2 O
      5 component-containing glass which has high dispersion and yet is little discolored without being subjected to heat treatment, and of which the discoloring after subjected to heat treatment is reduced.
      SOLUTION: There is provided the production method of optical glass which contains, as essential components, a P
      2 O
      5 component and one or more selected from the group consisting of an Nb
      2 O
      5 component, a TiO
      2 component and a WO
      3 component, and the method comprises a step of melting glass raw material (melting step), a step of refining molten glass raw material (refining step), a step of stirring refined molten glass (stirring step), a step of effusing stirred molten glass (effusing step), and a step of molding effused glass (molding step), wherein the stirring step is performed at a temperature higher than a liquid phase temperature of the molten glass by 0-200°C.
      COPYRIGHT: (C)2011,JPO&INPIT
    • 要解决的问题:提供一种用于获得具有高分散性并且几乎没有变色的含有P 2 5 组分的玻璃的光学玻璃的制备方法 而不进行热处理,并且其经受热处理后的变色减少。 提供了一种光学玻璃的制造方法,其中含有作为必要成分的P O 5 组分和选自以下组中的一种或多种: 的Nb 2 5 组分,TiO 2 组分和WO 3 SB组分,并且该方法包括 熔融玻璃原料的步骤(熔融步骤),精炼熔融玻璃原料的步骤(精制步骤),搅拌精制熔融玻璃的步骤(搅拌步骤),搅拌熔融玻璃(排出步骤)的步骤,以及 成型流化玻璃的步骤(成型步骤),其中搅拌步骤在高于熔融玻璃的液相温度的温度下进行0-200℃。 版权所有(C)2011,JPO&INPIT
    • 30. 发明专利
    • Optical glass, and optical element
    • 光学玻璃和光学元件
    • JP2010260746A
    • 2010-11-18
    • JP2009111405
    • 2009-04-30
    • Ohara Inc株式会社オハラ
    • TSUCHIBUCHI NANAOGINO MICHIKO
    • C03C3/16C03C3/062C03C3/064C03C3/066C03C3/068C03C3/17C03C3/19C03C3/21C03C3/253G02B1/00
    • PROBLEM TO BE SOLVED: To provide optical glass which has a low Abbe number (ν d ) even though the refractive index (n d ) thereof is within a desired range, is highly transparent to visible light, and is easily subjected to cleaning in the production of a preform material and an optical element, and to provide an optical element. SOLUTION: The optical glass contains, in mass% relative to the total mass of the glass in terms of oxides, 5.0 to 40.0% of a P 2 O 5 component and 10.0 to 60.0% of an Nb 2 O 5 component. Its detergent resistance (PR) by an ISO test lies in the class of 1 to 3. The optical element is composed of the optical glass as a matrix. COPYRIGHT: (C)2011,JPO&INPIT
    • 要解决的问题:为了提供具有低阿贝数(ν d )的光学玻璃,即使其折射率(n d )在期望的 范围,对可见光具有高度透明性,并且在制造预成型体材料和光学元件时容易进行清洁,并提供光学元件。 解决方案:光学玻璃以相对于玻璃的总质量的以氧化物计的质量%含有5.0〜40.0%的P 2 5 组分和10.0至60.0%的Nb 2 SB 3 O 3 SBB组分。 其通过ISO测试的耐洗涤性(PR)在1至3级中。光学元件由作为基质的光学玻璃组成。 版权所有(C)2011,JPO&INPIT