Method of molding chalcogenide glass lenses
    61.
    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

    Abstract: 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.

    Abstract translation: 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。

    Process for producing substances optically transparent to infrared rays
    63.
    发明授权
    Process for producing substances optically transparent to infrared rays 失效
    用于制造对红外线光学透明的物质的方法

    公开(公告)号:US4557914A

    公开(公告)日:1985-12-10

    申请号:US626053

    申请日:1984-06-29

    Applicant: Eros Modone

    Inventor: Eros Modone

    Abstract: In order to obtain substances that are optically transparent in the infrared range, usable in the manufacture of optical fibers or radiation emitters, a metal or metalloid chalcogenide other than an oxide is produced by a double-substitution reaction between a starting chalcogen compound--particularly a hydride such as H.sub.2 S, H.sub.2 Se or H.sub.2 Te--and a salt of the desired metal or metalloid, e.g. a chloride. The starting compound and the reactant salt preferably are vaporized at a temperature below the melting point of the resulting metal chalcogenide which thereupon precipitates in the reaction chamber.

    Abstract translation: 为了获得可用于制造光纤或辐射发射体的在红外范围内光学透明的物质,除了氧化物之外的金属或准金属硫属元素化物是通过起始硫属化合物之间的双取代反应产生的,特别是 氢化物如H 2 S,H 2 Se或H 2 Te,以及所需金属或准金属的盐,例如 氯化物。 起始化合物和反应物盐优选在低于所得金属硫族化物的熔点的温度下蒸发,随后在反应室中沉淀。

    MICROSTRUCTURED MATERIALS
    70.
    发明申请
    MICROSTRUCTURED MATERIALS 审中-公开
    微结构材料

    公开(公告)号:US20160281267A1

    公开(公告)日:2016-09-29

    申请号:US15081048

    申请日:2016-03-25

    Abstract: A thermoplastic filament comprising multiple polymers of differing flow temperatures in a regular geometric arrangement, and a method for producing such a filament, are described. Because of the difference in flow temperatures, there exists a temperature range at which one polymer is mechanically stable while the other is flowable. This property is extremely useful for creating thermoplastic monofilament feedstock for three-dimensionally printed parts, wherein the mechanically stable polymer enables geometric stability while the flowable polymer can fill gaps and provide strong bonding and homogenization between deposited material lines and layers. These multimaterial filaments can be produced via thermal drawing from a thermoplastic preform, which itself can be three-dimensionally printed. Furthermore, the preform can be printed with precisely controlled and complex geometries, enabling the creation of monofilament and fiber with unique decorative or functional properties.

    Abstract translation: 描述了包括具有规则几何排列的不同流动温度的多种聚合物的热塑性长丝和用于制造这种丝的方法。 由于流动温度的差异,存在一种聚合物机械稳定而另一种是可流动的温度范围。 该性质对于制备用于三维印刷部件的热塑性单丝原料非常有用,其中机械稳定的聚合物具有几何稳定性,而可流动的聚合物可以填充间隙并在沉积的材料线和层之间提供牢固的结合和均化。 这些多材料丝可以通过热塑性预成型件的热拉伸制造,其本身可以是三维印刷的。 此外,可以精确地控制和复杂的几何形状来印刷预成型件,从而能够产生具有独特装饰或功能特性的单丝和纤维。

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