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    • 6. 发明授权
    • Laser calibration apparatus and method
    • 激光校准装置及方法
    • US06501061B1
    • 2002-12-31
    • US09558367
    • 2000-04-26
    • Anton Theodore KitaiIan James MillerRobert Glenn Parker
    • Anton Theodore KitaiIan James MillerRobert Glenn Parker
    • G01J132
    • B23K26/0853B23K26/04B23K26/043B23K26/082B23K26/705
    • A method and of determining scanner coordinates to accurately position a focused laser beam. The focused laser beam is scanned over a region of interest (e.g. an aperture) on a work-surface by a laser scanner. The position of the focused laser beam is detected by a photodetector either at predetermined intervals of time or space or as the focused laser beam appears through an aperture in the work surface. The detected position of the focused laser beam is used to generate scanner position versus beam position data based on the position of the laser scanner at the time the focused laser beam is detected. The scanner position versus beam position data can be used to determine the center of the aperture or the scanner position coordinates that correspond with a desired position of the focused laser beam.
    • 一种确定扫描仪坐标以精确定位聚焦激光束的方法和方法。 聚焦的激光束通过激光扫描器在工作表面上的感兴趣区域(例如,孔)上扫描。 聚焦激光束的位置由光电探测器以预定的时间间隔或空间来检测,或者聚焦的激光束通过工作表面中的孔出现。 聚焦激光束的检测位置用于根据检测到聚焦激光束时激光扫描器的位置产生扫描器位置对光束位置数据。 扫描仪位置对光束位置数据可用于确定与聚焦激光束的期望位置相对应的光圈中心或扫描仪位置坐标。
    • 7. 发明授权
    • Manufacture of and uses for low molecular weight agars and agaroids
    • 制造和使用低分子量的琼脂和糖果
    • US06322814B1
    • 2001-11-27
    • US09456017
    • 1999-11-29
    • Ian James Miller
    • Ian James Miller
    • A61K916
    • A61K8/042A23G3/346A23G2200/06A23L29/256A61K8/73A61Q17/02A61Q19/00C08B37/0039
    • A process is claimed whereby an aqueous solution of agar, in which most (ideally all) 4-linked residues consist of 3,6-anhydro-L-galactose, is subjected to partial acid hydolysis and upon neutralization following the time appropriate for the chosen conditions, a low strength gel is obtained, from which, contrary to expectations, a polyagarobiose can be obtained by freeze-thawing and straining, thereby eliminating undesirable agaroid materials without the appropriate 3,6-anhydrogalactosyl content. The appropriate time of hydrolysis depends on initial gel strength, pH, counterion concentration and temperature. As an example, agar (gel strength 700 g/cm2, made to 1.86% solution) pH 3.25, counterion citrate (360 mg/L) at 96° C. requires 25 minutes to yield a material with an eventual gel stregth (1.5% solution) of 40 g/cm2. A stabilized product can be prepared by reducing terminal anhydrogalactosyl residues with sodium borohydride. The resultant products are useful for preparing gels for application to the skin, such as massage gels, as skin moisturizers, or as carriers of other active ingredients, such as pharmaceuticals able to be applied through the skin.
    • 要求一种方法,其中大部分(理想的是全部)4连接的残基由3,6-脱水-L-半乳糖组成的琼脂水溶液经受部分酸溶解,并且在适合所选择的时间之后中和 条件下,获得低强度凝胶,与预期相反,通过冻融和拉伸可获得聚阴离子二糖,从而消除不合适的3,6-脱水半乳糖基含量的不希望的糖料。 适当的水解时间取决于初始凝胶强度,pH,抗衡离子浓度和温度。 例如,在96℃下,琼脂(凝胶强度700g / cm 2,制成1.86%溶液)pH3.25,柠檬酸二铵(360mg / L)需要25分钟,得到最终凝胶状物质(1.5% 溶液)为40g / cm 2。 稳定的产物可以通过用硼氢化钠还原末端脱水半乳糖残基来制备。 所得产品可用于制备用于皮肤的凝胶,例如按摩凝胶,作为皮肤保湿剂,或作为其它活性成分的载体,例如能够通过皮肤施用的药物。
    • 10. 发明授权
    • System and method for material processing using multiple laser beams
    • 使用多个激光束进行材料加工的系统和方法
    • US06462306B1
    • 2002-10-08
    • US09558368
    • 2000-04-26
    • Anton Theodore KitaiIan James MillerSteven Harold Moffat
    • Anton Theodore KitaiIan James MillerSteven Harold Moffat
    • B23K26067
    • B23K26/0676B23K26/0643B23K26/0648B23K26/0665B23K26/067B23K26/08B23K26/082B23K26/382B23K26/389B23K26/40B23K2101/35B23K2101/42B23K2103/12B23K2103/172B23K2103/42B23K2103/50H05K3/0026H05K3/0035H05K3/0038H05K2203/108H05K2203/163
    • A material machining system for machining a workpiece (PCB, PWB etc.) for drilling blind vias. The system includes a laser supply system (20, 26, 30) for supplying discrete machining beams (22a, 22b) that are separate from each other. A deflecting devices (28, 32) is provided for deflecting each of the discrete machining beams to generate multiple independent beams at a plurality of positions within a field of operation on the workpiece. A scan lens (34) having an entrance pupil configured to receive the multiple independent beams from the deflecting devices is provided proximate to the entrance pupil of the scan lens. A computer is used for controlling the deflecting devices to change the respective positions of the multiple independent beams in at least one co-ordinate direction within the field of operation. The deflecting devices include galvo/mirror pairs at the entrance pupil of the scan lens. This is accomplished since the scan lens has a relatively large entrance pupil and the mirror parts are small. The advantage of this arrangement is the ability of all beams to access a full working field (typically 2×2 inches) on the workpiece simultaneously, so that the highest efficiency of laser power utilization is achieved.
    • 用于加工用于钻孔通孔的工件(PCB,PWB等)的材料加工系统。 该系统包括用于提供彼此分离的离散加工梁(22a,22b)的激光供给系统(20,26,30)。 提供了偏转装置(28,32),用于使每个分立的加工光束偏转,以在工件上的操作区域内的多个位置处产生多个独立的光束。 具有配置成从偏转装置接收多个独立光束的入射光瞳的扫描透镜(34)设置在扫描透镜的入射光瞳附近。 计算机用于控制偏转装置以在操作区域内以至少一个坐标方向改变多个独立光束的相应位置。 偏转装置包括在扫描透镜的入射光瞳处的电流/镜对。 这是因为扫描透镜具有相对大的入射光瞳并且镜部分很小。 这种布置的优点是所有光束能够同时访问工件上的全工作场(通常为2x2英寸),从而实现了最高的激光功率利用效率。