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    • 1. 发明申请
    • OPTICAL GLASS
    • 光学玻璃
    • WO2005102949A3
    • 2006-03-30
    • PCT/JP2005008095
    • 2005-04-21
    • OHARA KKUEHARA SUSUMU
    • UEHARA SUSUMU
    • C03C3/00C03C3/068C03C3/066G02B1/00
    • C03C3/068
    • The optical glass of the present invention has optical constants of a refractive index (nd) within a range from 1.74 to 1.80 and an Abbe number (? d) within a range from 47 to 51, contains, as essential components, SiO 2 , B 2 O 3 . La 2 O 3 , Gd 2 O 3 , ZrO 2 , Ta 2 O 5 , ZnO and Li 2 O, is substantially free of Pb, As and F, and contains ZrO 2 in an amount of 6 mass % or less. The optical glass has ratio of ZnO/(ZrO 2 + Ta 2 O 5 ) within a range from 0.45 to 1.5 and glass transition temperature (Tg) within a range from 530 °C to 630 °C.
    • 本发明的光学玻璃具有折射率(nd)在1.74〜1.80的范围内且阿贝数(Δd)在47〜51的范围内的光学常数,作为必要成分含有SiO < 2,B 2 O 3 3。 La 2 O 3,Gd 2 O 3,ZrO 2 O 3,Ta 2 O 3, N 2 O 2,ZnO和Li 2 O基本上不含Pb,As和F,并且含有ZrO 2 6质量%以下。 光学玻璃的比例为0.45〜1.5的ZnO /(ZrO 2 O 2 + Ta 2 O 5 O 5)的比例,玻璃化转变温度( Tg)在530℃至630℃的范围内。
    • 3. 发明申请
    • OPTICAL GLASS
    • 光学玻璃
    • WO2005102949A2
    • 2005-11-03
    • PCT/JP2005/008095
    • 2005-04-21
    • KABUSHIKI KAISHA OHARAUEHARA, Susumu
    • UEHARA, Susumu
    • C03C3/00
    • C03C3/068
    • The optical glass of the present invention has optical constants of a refractive index (nd) within a range from 1.74 to 1.80 and an Abbe number (ν d) within a range from 47 to 51, contains, as essential components, SiO 2 , B 2 O 3 . La 2 O 3 , Gd 2 O 3 , ZrO 2 , Ta 2 O 5 , ZnO and Li 2 O, is substantially free of Pb, As and F, and contains ZrO 2 in an amount of 6 mass % or less. The optical glass has ratio of ZnO/(ZrO 2 + Ta 2 O 5 ) within a range from 0.45 to 1.5 and glass transition temperature (Tg) within a range from 530 °C to 630 °C.
    • 本发明的光学玻璃具有折射率(nd)在1.74〜1.80的范围内且阿贝数(nu d)在47〜51的范围内的光学常数,作为必要成分含有SiO 2,B 2 O 3。 La 2 O 3,Gd 2 O 3,ZrO 2,Ta 2 O 5,ZnO和Li 2 O基本上不含Pb,As和F,并且含有6质量%以下的ZrO 2。 光学玻璃的ZnO /(ZrO 2 + Ta 2 O 5)在0.45〜1.5的范围内,玻璃化转变温度(Tg)在530℃〜630℃的范围内。
    • 4. 发明专利
    • GALVERNIZED IRON BOLT
    • JPH07208431A
    • 1995-08-11
    • JP2877794
    • 1994-01-14
    • UEHARA SUSUMU
    • UEHARA SUSUMU
    • F16B35/00
    • PURPOSE:To facilitate nut tightening without damaging the screw thread by forming a sandwiching surface through the means of cutout, for sandwiching it by a tool, on the threaded end portion of a galvernized iron bolt, which has a hook formed on its lower part, in the same direction as the hook. CONSTITUTION:A sanwiching surface 2 for sandwiching it with a pair of pliers or the like is formed by cutout on a threaded end portion 1 of a galvernized iron bolt, which is formed with a hook 3 on its lower part, in the same direction as the hook 3. When an opaque galvernized iron sheet or the like is secured with a galvernized iron bolt, the sheet galvernized iron or the like can be easily secured because the direction of the hook 3 can be judged from the threaded end portion 1 even if the hook 3 is invisible. A nut can be easily tightened without damaging the threaded portion because the surface to be sandwiched is sandwiched with a pair of pliers or a tool of the like.