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1. 发明授权

US5606448A Polygon scanner and production process thereof 失效
标题翻译：多边形扫描仪及其生产工艺
公开(公告)号：US5606448A
公开(公告)日：1997-02-25
申请号：US035791
申请日：1993-03-23
申请人： Mitsuo Suzuki , Yukio Itami , Yoshio Hashimoto , Koji Tsukahara , Yoshihiro Takahashi , Takao Abe
发明人： Mitsuo Suzuki , Yukio Itami , Yoshio Hashimoto , Koji Tsukahara , Yoshihiro Takahashi , Takao Abe
IPC分类号： F16C17/02 , F16C33/10 , G02B7/182 , G02B26/12 , H02K5/16 , H02K7/09 , H02K21/24 , H02K29/06 , G02B26/08
CPC分类号： F16C33/107 , F16C17/026 , G02B26/121 , G02B7/1821 , H02K21/24 , H02K29/06 , H02K5/1677 , H02K7/09 , Y10S359/90
摘要： A polygon scanner has a lighter rotating shaft on which a polygon mirror is mounted, to prevent a positional deviation of the polygon mirror from the rotating shaft in high speed rotation, in which the rotating shaft is supported through a dynamic pressure air bearing on a fixed shaft, in which the polygon mirror and motor constituent members are mounted on the rotating shaft, and in which the rotating shaft and the polygon mirror are made of respective light weight materials matched with each other in coefficient of thermal expansion, for example of aluminum or an aluminum alloy. Further, an anodic oxide film is formed at least on a portion where the rotating shaft could contact with the fixed shaft, and floating means is provided for constantly floating the rotating shaft relative to the fixed shaft upward in an axial direction thereof. A process for producing the polygon scanner comprises making a predetermined masking on a portion where the rotating shaft could contact with the fixed shaft, prior to an anodic oxidation treatment to form an anodic oxide film on the portion, and then performing the anodic oxidation treatment, whereby, during the treatment, forming an anodic oxide film and a pattern of recesses and protrusions for dynamic pressure generation corresponding to a pattern of the masking, which are constituent elements of a dynamic pressure air bearing.
摘要翻译：多边形扫描器具有安装有多面镜的较轻的旋转轴，以防止多角镜从高速旋转中的旋转轴的位置偏离，其中旋转轴通过动态压力空气轴承支撑在固定的轴，其中多面镜和电动机构成部件安装在旋转轴上，并且其中旋转轴和多面镜由相对于热膨胀系数彼此匹配的各种重量轻的材料制成，例如铝或铝合金。此外，至少在旋转轴可以与固定轴接触的部分上形成阳极氧化膜，并且设置有浮动装置，用于使旋转轴相对于固定轴在轴向上向上上升。多边形扫描仪的制造方法，在阳极氧化处理之前，在旋转轴与固定轴接触的部分上进行规定的掩模，在该部分上形成阳极氧化膜，然后进行阳极氧化处理，由此，在处理过程中，形成阳极氧化膜和用于动压产生的凹凸图案，其对应于作为动压空气轴承的组成元件的掩模图案。

2. 发明授权

US5574591A Polygon scanner and production process thereof 失效
标题翻译：多边形扫描仪及其生产工艺
公开(公告)号：US5574591A
公开(公告)日：1996-11-12
申请号：US383929
申请日：1995-02-06
申请人： Mitsuo Suzuki , Yukio Itami , Yoshio Hashimoto , Koji Tsukahara , Yoshihiro Takahashi , Takao Abe
发明人： Mitsuo Suzuki , Yukio Itami , Yoshio Hashimoto , Koji Tsukahara , Yoshihiro Takahashi , Takao Abe
IPC分类号： F16C17/02 , F16C33/10 , G02B7/182 , G02B26/12 , H02K5/16 , H02K7/09 , H02K21/24 , H02K29/06 , G02B26/08
CPC分类号： F16C33/107 , F16C17/026 , G02B26/121 , G02B7/1821 , H02K21/24 , H02K29/06 , H02K5/1677 , H02K7/09 , Y10S359/90
摘要： A polygon scanner has a lighter rotating shaft on which a polygon mirror is mounted, to prevent a positional deviation of the polygon mirror from the rotating shaft in high speed rotation, in which the rotating shaft is supported through a dynamic pressure air bearing on a fixed shaft, in which the polygon mirror and motor constituent members are mounted on the rotating shaft, and in which the rotating shaft and the polygon mirror are made of respective light weight materials matched with each other in coefficient of thermal expansion, for example of aluminum or an aluminum alloy. Further, an anodic oxide film is formed at least on a portion where the rotating shaft could contact with the fixed shaft, and floating means is provided for constantly floating the rotating shaft relative to the fixed shaft upward in an axial direction thereof. A process for producing the polygon scanner comprises making a predetermined masking on a portion where the rotating shaft could contact with the fixed shaft, prior to an anodic oxidation treatment to form an anodic oxide film on the portion, and then performing the anodic oxidation treatment, whereby, during the treatment, forming an anodic oxide film and a pattern of recesses and protrusions for dynamic pressure generation corresponding to a pattern of the masking, which are constituent elements of a dynamic pressure air bearing.
摘要翻译：多边形扫描器具有安装有多面镜的较轻的旋转轴，以防止多角镜从高速旋转中的旋转轴的位置偏离，其中旋转轴通过动态压力空气轴承支撑在固定的轴，其中多面镜和电动机构成部件安装在旋转轴上，并且其中旋转轴和多面镜由相对于热膨胀系数彼此匹配的各种重量轻的材料制成，例如铝或铝合金。此外，至少在旋转轴可以与固定轴接触的部分上形成阳极氧化膜，并且设置有浮动装置，用于使旋转轴相对于固定轴在轴向上向上上升。多边形扫描仪的制造方法，在阳极氧化处理之前，在旋转轴可以与固定轴接触的部分上进行规定的掩模，在该部分上形成阳极氧化膜，然后进行阳极氧化处理，由此，在处理过程中，形成阳极氧化膜和用于动压产生的凹凸图案，其对应于作为动压空气轴承的组成元件的掩模图案。

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