Mold used for molding glass optical elements process for preparation of glass optical elements and method for rebirth of mold
    11.
    发明授权
    Mold used for molding glass optical elements process for preparation of glass optical elements and method for rebirth of mold 失效
    用于模制玻璃光学元件的模具用于制备玻璃光学元件的方法和用于重塑模具的方法

    公开(公告)号:US06560994B1

    公开(公告)日:2003-05-13

    申请号:US09116964

    申请日:1998-07-17

    申请人: Shinichiro Hirota

    发明人: Shinichiro Hirota

    IPC分类号: C03B1108

    摘要: Disclosed is a mold including upper and lower molds for obtaining glass optical elements by press molding a glass molding material softened by heat, in which either one of the upper and lower molds is made of a ceramic matrix and the matrix has no surface hole having a diameter of 300 microns or more on the molding surface, and a method for manufacturing glass optical elements using the mold. For example, on the upper mold 21 and the lower mold 22, formed is a &bgr; type silicon carbide having a thickness that a molding surface can be reproduced by grinding and a density of 3.20 g/cm3 or more so as to include at least the molding surface facing a surface of the glass molding material G. The mold according to the invention can be reused even where pullouts occur from repetitive use.

    摘要翻译: 公开了一种模具,其包括上模和下模,用于通过加压模制由热软化的玻璃成型材料获得玻璃光学元件,其中上模具和下模具中的任一个由陶瓷基体制成,并且基体没有表面孔, 在成型面上的直径为300微米以上,以及使用该模具制造玻璃光学元件的方法。 例如,在上模具21和下模具22上形成的是具有通过研磨再现成型面的厚度的β型碳化硅,密度为3.20g / cm 3以上,至少包含 模制表面面向玻璃模制材料G的表面。即使在重复使用时出现突起,根据本发明的模具也可以重复使用。

    Manufacturing method for molded glass articles
    12.
    发明授权
    Manufacturing method for molded glass articles 失效
    模制玻璃制品的制造方法

    公开(公告)号:US5987922A

    公开(公告)日:1999-11-23

    申请号:US80959

    申请日:1998-05-19

    IPC分类号: C03B11/08 C03B11/16 C03B23/00

    摘要: A manufacturing method for molded glass articles including glass optical elements such as high precision lenses not requiring grinding and polishing after press molding. The manufacturing method according to the invention is a method for manufacturing the molded glass articles having a higher surface precision with a high productivity by pressing a glass material in a stepwise manner constituted of some steps depending on a temperature condition of the glass material.

    摘要翻译: 一种玻璃制品的制造方法,包括玻璃光学元件,例如在压制成型后不需要研磨和抛光的高精度透镜。 根据本发明的制造方法是通过按照玻璃材料的温度条件由一些步骤构成的逐步方式按压玻璃材料,以高生产率制造具有更高表面精度的模制玻璃制品的方法。

    Method of molding chalcogenide glass lenses
    13.
    发明授权
    Method of molding chalcogenide glass lenses 失效
    硫属化物玻璃透镜成型方法

    公开(公告)号:US5346523A

    公开(公告)日:1994-09-13

    申请号:US40412

    申请日:1993-03-31

    IPC分类号: C03B11/08 C03B11/12

    摘要: An infrared transmitting chalcogenide glass lens having precision optical surfaces of different curvature radii is molded. A pair of molds having different curvature radiuses from each other, and a bushing which controls the thickness of the lens is provided. A block of chalcogenide glass is placed within the cavity. The upper mold, the lower mold and the block of glass are heated with the mold having a smaller curvature radius being at a higher temperature than the other mold. The glass is then pressed, cooled, and the resulting lens is removed from the mold assembly.

    摘要翻译: 模制具有不同曲率半径的精密光学表面的红外透射硫族化物玻璃透镜。 具有彼此不同的曲率半径的一对模具,并且设置了控制透镜的厚度的衬套。 将一块硫族化物玻璃放置在空腔内。 上模具,下模具和玻璃块被加热,具有较小曲率半径的模具处于比另一模具更高的温度。 然后将玻璃压制,冷却,并将得到的透镜从模具组件中取出。

    Method for forming an optical element
    14.
    发明授权
    Method for forming an optical element 失效
    光学元件的形成方法

    公开(公告)号:US5344476A

    公开(公告)日:1994-09-06

    申请号:US52280

    申请日:1993-04-26

    申请人: Masayuki Tomida

    发明人: Masayuki Tomida

    摘要: An improved method of forming an optical element, wherein heated upper and lower molds are used in conjunction with radiation heating glass material placed in an optical forming surface of the lower mold. The molds are heated to a necessary temperature, then the glass material is heated by exposure to heat by radiation. The glass blank then is pressed between the upper and lower molds to transfer the optical forming surfaces of each mold to the glass material, and define the optically functional surfaces of an optical element.

    摘要翻译: 一种改进的形成光学元件的方法,其中加热的上模和下模与放置在下模的光学成形表面中的辐射加热玻璃材料结合使用。 将模具加热到必要的温度,然后通过辐射暴露于加热来加热玻璃材料。 然后将玻璃坯料压在上模和下模之间,将每个模具的光学成形表面转移到玻璃材料上,并限定光学元件的光学功能表面。

    OPTICAL GLASS, OPTICAL ELEMENT, AND METHOD FOR MANUFACTURING OPTICAL GLASS
    18.
    发明申请
    OPTICAL GLASS, OPTICAL ELEMENT, AND METHOD FOR MANUFACTURING OPTICAL GLASS 有权
    光学玻璃,光学元件和制造光学玻璃的方法

    公开(公告)号:US20140256531A1

    公开(公告)日:2014-09-11

    申请号:US14190387

    申请日:2014-02-26

    摘要: An optical glass including B3+, La3+ and Nb5+ as cationic components constituting the glass, wherein the optical glass satisfies the following expressions represented in cation percentages: 10 cat. %≦B3+≦50 cat. %; 40 cat. %≦La3+≦65 cat. %; 0 cat. %≦Nb5+≦40 cat. %; 80 cat. %≦(total amount of B3++La3++Nb5+)≦100 cat. %; and 0 cat. %≦Si4+≦10 cat. %; 0 cat. %≦Ge4+≦5 cat. %; 0 cat. %≦Mg2+≦5 cat. %; 0 cat. %≦Ba2+≦10 cat. %; 0 cat. %≦Ca2+≦10 cat. %; 0 cat. %≦Sr2+≦10 cat. %; 0 cat. %≦Zn2+≦20 cat. %; 0 cat. %≦W6+≦5 cat. %; 0 cat. %≦Zr4+≦5 cat. %; 0 cat. %≦Ti4+≦5 cat. %; 0 cat. %≦Bi3+≦5 cat. %; 0 cat. %≦Ta5+≦10 cat. %; 0 cat. %≦(total amount of Y3++Gd3+)≦20 cat. %; and 0 cat. %≦(total amount of Yb3++Lu3+)≦10 cat. %.

    摘要翻译: 包含构成玻璃的阳离子成分的B3 +,La3 +,Nb5 +的光学玻璃,其中,所述光学玻璃的阳离子比例为10mA。 %≦̸ B3 +≦̸ 50猫 %; 40猫 %≦̸ La3 +≦̸ 65猫。 %; 0猫 %≦̸ Nb5 +≦̸ 40只猫。 %; 80猫 %≦̸(B3 ++ La3 ++ Nb5 +的总量)≦̸ 100只猫。 %; 和0猫。 %≦̸ Si4 +≦̸ 10只猫。 %; 0猫 %≦̸ Ge4 +≦̸ 5只猫。 %; 0猫 %≦̸ Mg2 +≦̸ 5只猫。 %; 0猫 %≦̸ Ba2 +≦̸ 10只猫 %; 0猫 %≦̸ Ca2 +≦̸ 10只猫。 %; 0猫 %≦̸ Sr2 +≦̸ 10只猫 %; 0猫 %≦̸ Zn2 +≦̸ 20只猫。 %; 0猫 %≦̸ W6 +≦̸ 5只猫。 %; 0猫 %≦̸ Zr4 +≦̸ 5只猫。 %; 0猫 %≦̸ Ti4 +≦̸ 5只猫 %; 0猫 %≦̸ Bi3 +≦̸ 5只猫。 %; 0猫 %≦̸ Ta5 +≦̸ 10只猫 %; 0猫 %≦̸(Y3 + + Gd3 +的总量)≦̸ 20只猫。 %; 和0猫。 %≦̸(Yb3 ++ Lu3 +的总量)≦̸ 10只猫。 %。

    Preform for Optical Element and Optical Element
    20.
    发明申请
    Preform for Optical Element and Optical Element 有权
    光学元件和光学元件预制件

    公开(公告)号:US20080081206A1

    公开(公告)日:2008-04-03

    申请号:US11792751

    申请日:2005-12-09

    IPC分类号: G02B1/00 C03B11/08 G02B3/00

    摘要: A preform for an optical element is provided which involves less amount of deformation of glass in molding, and readily improves lifetime of the mold. The present preform for molding an optical glass element 10 exhibits an almost circular shape having a predetermined diameter in top view, exhibits a flattened semicircular shape having a predetermined overall height in side view, has a concave face on the top surface such that the predetermined overall height is attained at approximately the central position of the aforementioned circular shape, and has a concave face so as to fit along the convex face of the top surface such that a space is provided on the bottom face. The under surface may be either a concave face or a convex face. Also, the top surface may be either a concave face or a convex face.

    摘要翻译: 提供了一种用于光学元件的预制件,其在模制中涉及较少的玻璃变形,并且容易地改善模具的使用寿命。 本发明的用于模制光学玻璃元件10的预制件在顶视图中具有预定直径的几乎圆形,在侧视图中呈现具有预定总高度的扁平半圆形状,在顶表面上具有凹面,使得预定的整体 大致在上述圆形的中心位置处获得高度,并且具有凹面以便沿着顶表面的凸面配合,使得在底面上设置有空间。 底面可以是凹面或凸面。 此外,顶面可以是凹面或凸面。