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    • 5. 发明授权
    • Method of making lightweight closed-back mirror
    • 制造轻质封闭镜的方法
    • US5741445A
    • 1998-04-21
    • US596021
    • 1996-02-06
    • Raymond L. TaylorMichael A. PickeringLee E. Burns
    • Raymond L. TaylorMichael A. PickeringLee E. Burns
    • G02B5/08H01Q15/14B29D11/00
    • H01Q15/141G02B5/08
    • A method of forming a light weight, closed-back mirror. The mirror is formed as a monolithic construction by the use of chemical vapor deposition techniques. A first deposition forms sheets of the material, which are machined to the proper size to form reinforcing ribs. A sacrificial mandrel is formed with grooves to receive the ribs in their assembled positions. The upper surface of the mandrel is in proximity to the rear edges of the ribs to form a substantially continuous surface. The mandrel and ribs are then subjected to a chemical vapor deposition process which forms a first coating upon the outer face of the mandrel, forming a back plate and side wall. The mandrel is then turned over, and the base is removed by machining to expose the front edges of the ribs. This process leaves islands of mandrel material between the ribs to form a substantially continuous surface. The mandrel and ribs are then subjected to a chemical vapor deposition process. This forms a second coating upon the lower surface of the mandrel, used as the mirror face. To reduce weight, holes are drilled through the back plate, and the remaining, encapsulated, mandrel material is removed by oxidation.
    • 一种形成轻质封闭式后视镜的方法。 反射镜通过使用化学气相沉积技术形成为整体结构。 首先沉积形成材料片材,其被加工成适当的尺寸以形成加强肋。 牺牲心轴形成有凹槽以在其组装位置接收肋。 心轴的上表面靠近肋的后边缘以形成基本连续的表面。 然后将心轴和肋条进行化学气相沉积工艺,其在心轴的外表面上形成第一涂层,形成背板和侧壁。 然后将心轴翻转,并且通过机械加工去除基底以露出肋的前边缘。 该工艺在肋之间留下芯棒材料岛以形成基本连续的表面。 然后对心轴和肋进行化学气相沉积工艺。 这在心轴的下表面上形成第二涂层,用作镜面。 为了减轻重量,通过后板钻出孔,并且通过氧化除去剩余的封装的心轴材料。
    • 10. 发明授权
    • Method to prevent backside growth on substrates in a vapor deposition
system
    • 防止气相沉积系统中底物背面生长的方法
    • US4963393A
    • 1990-10-16
    • US403957
    • 1989-09-07
    • Jitendra S. GoelaRoy D. JaworskiRaymond L. Taylor
    • Jitendra S. GoelaRoy D. JaworskiRaymond L. Taylor
    • C23C16/44C23C16/04C23C16/458
    • C23C16/042C23C16/4583
    • Backside growth on substrates in a vapor deposition system has been a problem resulting in cracking of the material deposited on the substrate, making replication in a vapor deposition system difficult to achieve, and requiring post deposition machining to separate the substrate-deposit from the deposition fixture. A solution to the problem is the following: the substrate is mounted on a plurality of graphite pillars, with the pillars being bonded to the substrate as near the periphery thereof as possible. A hollow body open on one side but closed on the other, and fabricated from GRAFOIL with graphite cement used as a bonding agent, is mounted on the pillars with the open end facing the substrate. The open end of the body is pressed against the substrate and sealed with a bonding agent. This completely covers the backside of the substrate and thus prevents any vapor deposition thereon.
    • 在气相沉积系统中在基底上的背面生长已经成为导致沉积在基底上的材料破裂的问题,难以实现在气相沉积系统中的复制,并且需要后沉积加工以将基底沉积物与沉积夹具分开 。 该问题的解决方案如下:将基板安装在多个石墨柱上,其中柱子尽可能靠近其周边地结合到基板。 在一侧敞开但封闭的中空体,由用作粘合剂的石墨粘结剂的GRAFOIL制成,其顶端朝向基材安装在支柱上。 将本体的开口端压在基板上并用粘合剂密封。 这完全覆盖基板的背面,从而防止其上的任何气相沉积。