Method of making high purity optical fluoride crystals
    11.
    发明申请
    Method of making high purity optical fluoride crystals 失效
    制备高纯度氟化物晶体的方法

    公开(公告)号:US20030089304A1

    公开(公告)日:2003-05-15

    申请号:US10198526

    申请日:2002-07-18

    摘要: The present invention relates to the manufacturing of high purity optical flouride crystals, the making of purified optical flouride crystal feedstocks and to the anionic purification of optical fluoride crystalline materials. The invention relates generally to methods for removing oxide impurities from optical fluoride crystal feedstocks. More specifically, the invention relates to a method for preparing purified optical fluoride crystal feedstocks and the use of the feedstock in manufacturing VUV

    摘要翻译: 本发明涉及高纯度光学荧光晶体的制造,纯化的光学氟化物晶体原料的制备以及氟化物结晶材料的阴离子净化。 本发明一般涉及从光氟化物晶体原料中除去氧化物杂质的方法。 更具体地说,本发明涉及一种制备纯化的氟化物氟化物晶体原料的方法,以及在制备用于VUV光刻/激光系统的VUV <200nm透射光氟化物晶体中的原料的使用。

    Hot-pressable magnesium fluoride powder
    12.
    发明授权
    Hot-pressable magnesium fluoride powder 失效
    热压氟化镁粉末

    公开(公告)号:US4044112A

    公开(公告)日:1977-08-23

    申请号:US632059

    申请日:1975-11-14

    IPC分类号: C01F5/28 G02B1/00

    摘要: A process is disclosed for converting basic magnesium carbonate into pure hot-pressable magnesium fluoride such as is used for the hot-pressing of infra-red radiation transmitting optical bodies. The process includes contacting a slurry of basic magnesium carbonate with carbon dioxide to form enough magnesium bicarbonate or hydrates of magnesium carbonate, in situ, to alter the particles in the slurry. Carbonation of the slurry increases solubility of the solids by establishing an equilibrium relationship in solution between the unstable magnesium bicarbonate and hydrates of magnesium carbonate particles. When the carbonated slurry is contacted with a slight excess of hydrofluoric acid it precipitates solid particles of fine hydrous magnesium fluoride. Neutralization of excess hydrofluoric acid is effected with ammonium hydroxide. The solid particulate precipitate is dried and calcined to yield hot-pressable magnesium fluoride powder of exceptional purity and consistent quality.A hot-pressable magnesium fluoride powder has been prepared which has a specific and uniform refractive index, n.sub.D = 1.3850 at 20.degree. C; the powder is made up of primary particles the majority of which have an average particle diameter of greater than 5 .mu. (microns). These physical properties and a characteristic ill-defined X-ray diffraction pattern suggestive of an amorphous structure, allow the powder to be hot-pressed into an optical body without grinding the powder.

    摘要翻译: 公开了用于将碱式碳酸镁转化为纯热压氟化镁的方法,例如用于热压红外辐射透射光学体的方法。 该方法包括将碱式碳酸镁的浆料与二氧化碳接触以形成足够的碳酸氢镁或碳酸镁的水合物,以便改变浆料中的颗粒。 浆料的碳酸化通过在不稳定的碳酸氢镁和碳酸镁颗粒的水合物之间的溶液中建立平衡关系来增加固体的溶解度。 当碳酸化浆液与略过量的氢氟酸接触时,会沉淀出含水氟化镁的固体颗粒。 过量氢氟酸的中和是用氢氧化铵进行的。 将固体颗粒沉淀物干燥并煅烧,得到纯度高,质量一致的热压氟化镁粉末。

    METHOD OF PRODUCING HOLLOW MAGNESIUM FLUORIDE PARTICLES, AND ANTIREFLECTION COATING, OPTICAL DEVICE, AND IMAGING OPTICAL SYSTEM HAVING THE PARTICLES
    17.
    发明申请
    METHOD OF PRODUCING HOLLOW MAGNESIUM FLUORIDE PARTICLES, AND ANTIREFLECTION COATING, OPTICAL DEVICE, AND IMAGING OPTICAL SYSTEM HAVING THE PARTICLES 审中-公开
    生产中性氟化镁颗粒的方法和抗反射涂层,光学装置和具有颗粒的成像光学系统

    公开(公告)号:US20130188255A1

    公开(公告)日:2013-07-25

    申请号:US13877446

    申请日:2011-09-15

    IPC分类号: G02B1/11 C09D5/00

    摘要: The present invention provides a method of producing hollow magnesium fluoride particles by performing polymerization at the interface of micelle constituted of a hydrophobic solvent, a hydrophilic solvent, and a surfactant. The invention further provides an antireflection coating having a low refractive index due to the coating by the hollow magnesium fluoride particles and also provides an optical device coated with the antireflection coating and an imaging optical system having the optical device. In the method, micelle is formed from a hydrophobic solvent, a hydrophilic solvent, and a surfactant, and then a fluorine compound and a magnesium compound are dissolved in the micelle solution to polymerize magnesium fluoride at the interface of the micelle.

    摘要翻译: 本发明提供一种通过在由疏水性溶剂,亲水性溶剂和表面活性剂构成的胶束的界面进行聚合来制造中空氟化镁颗粒的方法。 本发明还提供了由于中空氟化镁颗粒的涂覆而具有低折射率的抗反射涂层,还提供了涂有抗反射涂层的光学装置和具有光学装置的成像光学系统。 在该方法中,由疏水性溶剂,亲水性溶剂和表面活性剂形成胶束,然后将氟化合物和镁化合物溶解在胶束溶液中,以在胶束的界面聚合氟化镁。

    Method For The Preparation Of X-Ray Amorphous Or Weakly Crystalline Metal Oxide Fluorides And New Uses Thereof
    19.
    发明申请
    Method For The Preparation Of X-Ray Amorphous Or Weakly Crystalline Metal Oxide Fluorides And New Uses Thereof 审中-公开
    用于制备X射线非晶态或弱结晶金属氧化物氟化物的方法及其新用途

    公开(公告)号:US20080274037A1

    公开(公告)日:2008-11-06

    申请号:US11720796

    申请日:2005-12-05

    IPC分类号: C01F7/50 C01B11/24

    摘要: The present invention is related to a method for preparing an X-ray amorphous or weakly crystalline metal oxide fluoride of a composition represented by the formula Ma+ObFc comprising the steps of b) providing a precursor, whereby the precursor is a fluorinated metal compound having a composition which is represented by the formula Ma+F(a−d)BdLxb) converting the precursor into an metal oxide/hydroxide fluoride; and c) calcinating the metal oxide/hydroxide fluoride having the formula Ma+OcHfFc to generate the X-ray amorphous or weakly crystalline metal oxide fluoride of the formula Ma+ObFc, whereby M is selected from the group comprising metals of the first, second, third and fourth main group and any subgroup of the periodic table; B is a group or an anion which is selected from the group comprising alkoxide, enolates, alkyl, chloride, bromide, iodide, nitrate, and organic acid anions; B is preferably an alkoxy group; L is a solvent other than water; a is any integer of 1, 2, 3, 4, 5 or 6, preferably 2 or 3; and b and c are any numbers obeying the formula b/2+c=a, and c is 0.1b to 10b; d is a number between 0 and 0.8a, preferable between 0.1 and 0.3a; e is (a−c+f)/2; f is a number between 0 and (a−c); and x is between 0 and 6.

    摘要翻译: 本发明涉及一种制备由下式表示的组合物的X射线无定形或弱结晶金属氧化物氟化物的方法: c)包括以下步骤:b)提供前体,由此所述前体是具有由下式表示的组成的氟化金属化合物:(a) b)将前体转化为金属氧化物/氢氧化物氟化物; 和c)将具有下式的金属氧化物/氢氧化物氟化物煅烧:将式M a -O + 产生式M a O b O b C c C的X射线无定形或弱结晶金属氧化物氟化物,其中M选自 包括第一,第二,第三和第四主族的金属和周期表的任何亚组; B是选自醇盐,烯醇化物,烷基,氯化物,溴化物,碘化物,硝酸盐和有机酸阴离子的基团或阴离子; B优选为烷氧基; L是水以外的溶剂; a是1,2,3,4,5或6,优选2或3的整数; b和c是符合公式b / 2 + c = a的任何数字,c是0.1b〜10b; d是0和0.8a之间的数,优选在0.1和0.3a之间; e为(a-c + f)/ 2; f是0和(a-c)之间的数字; x在0和6之间。

    Silica-magnesium fluoride hydrate composite sols and process for their preparation
    20.
    发明授权
    Silica-magnesium fluoride hydrate composite sols and process for their preparation 失效
    二氧化硅 - 氟化镁水合物复合溶胶及其制备方法

    公开(公告)号:US06291535B1

    公开(公告)日:2001-09-18

    申请号:US09455928

    申请日:1999-12-07

    IPC分类号: B01F312

    摘要: A sol comprising silica-magnesium fluoride hydrate composite colloidal particles used in an anti-reflection coating material for forming an anti-reflection coating and a process for its preparation are provided. A sol comprising silica-magnesium fluoride hydrate composite colloidal particles having a ratio of silica to magnesium fluoride hydrate MgF2.nH2O, n being in the range between 0.25 and 0.5, in terms of a SiO2/MgF2 weight ratio of from 0.01 to 5 and a primary particle size of 5 to 50 nm. A process for the preparation of an aqueous sol comprising silica-magnesium fluoride hydrate composite colloidal particles which comprises the steps of adding an aqueous fluoride solution to a mixture liquid of a silica sol and an aqueous magnesium salt solution to produce a slurry of an agglomerate comprising silica-magnesium fluoride hydrate composite colloidal particles and removing the salts formed as by-products. A process for the preparation of an organosol further comprising the step of replacing water in the aqueous sol with an organic solvent.

    摘要翻译: 提供一种包含用于形成抗反射涂层的防反射涂层材料中的二氧化硅 - 氟化镁水合物复合胶体颗粒及其制备方法。 包含二氧化硅 - 氟化镁水合物复合胶体粒子的溶胶,SiO 2 / MgF 2重量比为0.01〜5,二氧化硅与氟化镁水合物的比例为MgF 2·nH 2 O,n为0.25〜0.5的范围, 一次粒径为5〜50nm。 一种制备包含二氧化硅 - 氟化镁水合物复合胶体颗粒的水性溶胶的方法,包括以下步骤:向二氧化硅溶胶和镁盐水溶液的混合液中加入氟化钠水溶液,以产生附聚物的浆料,其包含 二氧化硅 - 氟化镁水合物复合胶体颗粒并除去作为副产物形成的盐。 一种制备有机溶胶的方法,还包括用有机溶剂代替水溶胶中的水的步骤。