Turbomolecular pump and vacuum apparatus
    131.
    发明授权
    Turbomolecular pump and vacuum apparatus 失效
    涡轮分子泵和真空装置

    公开(公告)号:US06499942B1

    公开(公告)日:2002-12-31

    申请号:US09444431

    申请日:1999-11-19

    IPC分类号: F04D1904

    摘要: A turbomolecular pump capable of maintaining a maximum discharge rate even in a higher pressure has rotor blades or stator blades formed such that surface angles on a first surface of the blades facing the direction of rotation differ between an inlet port side of the blades and an outlet port side. The surface closer to the inlet port has a larger angle than on a side closer to the outlet port. One side of the blades has a plurality of surface portions each with different angles. The angles of the surfaces are in the range of 20° to 50° on the inlet port side, 10° to 40° on an intermediate portion, and 10° to 90° on the outlet port side. The angles of the first and second surface portions are larger than that of the intermediate surface portion.

    摘要翻译: 能够即使在更高的压力下能够保持最大排出速率的涡轮分子泵也具有转子叶片或定子叶片,所述转子叶片或定子叶片形成为使得叶片面向旋转方向的第一表面上的表面角度在叶片的入口侧与出口 左舷。 靠近入口的表面的角度大于靠近出口的一侧。 叶片的一侧具有多个具有不同角度的表面部分。 表面的角度在入口侧为20°〜50°,中间部为10°〜40°,出口侧为10°〜90°。 第一和第二表面部分的角度大于中间表面部分的角度。

    Vacuum pump and vacuum apparatus equipped with vacuum pump
    133.
    发明授权
    Vacuum pump and vacuum apparatus equipped with vacuum pump 失效
    真空泵和真空泵配备真空泵

    公开(公告)号:US06364604B1

    公开(公告)日:2002-04-02

    申请号:US09347355

    申请日:1999-07-06

    IPC分类号: F03B500

    CPC分类号: F04D19/042 F04D25/0613

    摘要: A vacuum pump has an inner cylinder having a hollow portion in fluid communication with atmospheric air, an inner flange disposed on an upper side of the inner cylinder, and an inner sealing groove disposed on an upper end surface of the inner flange. An outer cylinder is disposed over the inner cylinder. The outer cylinder has an outer flange disposed on an upper side of the outer cylinder and an outer sealing groove disposed on an upper end surface of the outer flange. An intake port is disposed at the upper side of the inner and outer cylinders. An exhaust port is disposed at lower sides of the inner and outer cylinders. A pump mechanism pumps gaseous molecules from the intake port to the exhaust port to discharge the gaseous molecules from the exhaust port.

    摘要翻译: 真空泵具有内筒,其具有与大气空气流体连通的中空部分,设置在内筒上侧的内凸缘和设置在内凸缘的上端表面上的内密封槽。 外筒设置在内筒上。 外筒具有设置在外筒的上侧的外凸缘和设置在外凸缘的上端面上的外密封槽。 进气口设置在内筒和外筒的上侧。 排气口设置在内筒和外筒的下侧。 泵机构将气态分子从进气口泵送到排气口,以从排气口排出气态分子。

    Optical system having an optical system shake compensating function
    136.
    发明授权
    Optical system having an optical system shake compensating function 失效
    具有光学系统抖动补偿功能的光学系统

    公开(公告)号:US5973836A

    公开(公告)日:1999-10-26

    申请号:US543075

    申请日:1995-10-13

    CPC分类号: G02B27/646 G02B15/173

    摘要: A system includes a compensating lens unit capable of decentering for camera shake compensation and a non-decentering lens located closer to an image than the compensating lens unit and not decentering in camera shake compensation. An aspherical surface is formed in the compensating lens unit, and an aspherical surface which tends to counteract an aspherical effect of the aspherical surface formed in the compensating lens unit is formed in the non-decentering lens.

    摘要翻译: 一种系统包括能够偏心相机抖动补偿的补偿透镜单元和位于比补偿透镜单元更靠近图像的非偏心透镜,并且不会在相机抖动补偿中偏心。 在补偿透镜单元中形成非球面,并且在非偏心透镜中形成倾向于抵消在补偿透镜单元中形成的非球面的非球面效应的非球面。

    Lens system
    137.
    发明授权
    Lens system 失效
    镜头系统

    公开(公告)号:US5959771A

    公开(公告)日:1999-09-28

    申请号:US690916

    申请日:1996-08-01

    摘要: A relay lens system which may be used with, e.g., a video camera or still video camera so that these video cameras can use, as the image forming lens, various preexisting interchangeable image forming lenses originally designed for single lens reflex cameras. The image forming lenses which form a first image can have various exit pupils. The entry pupil of the relay lens system can be changed in accordance with each particular exit pupil by selecting one from a plurality of apertures or by a movable aperture. Consequently, a second image can be formed that reproduces the first image while maintaining good quality.

    摘要翻译: 可以与例如摄像机或静态摄像机一起使用以使得这些摄像机可以使用的中继透镜系统作为成像透镜,原先设计用于单镜头反光相机的各种预先存在的可互换成像透镜。 形成第一图像的图像形成透镜可以具有各种出射光瞳。 中继透镜系统的进入光瞳可以通过从多个孔径中选择一个或通过可移动孔径来根据每个特定出射光瞳来改变。 因此,可以形成再现第一图像同时保持良好质量的第二图像。

    Lens barrel and camera provided with a lens barrel
    138.
    发明授权
    Lens barrel and camera provided with a lens barrel 失效
    镜头筒和相机配有镜筒

    公开(公告)号:US5907724A

    公开(公告)日:1999-05-25

    申请号:US768123

    申请日:1996-12-17

    CPC分类号: G02B7/102

    摘要: In a lens barrel of a zoom lens, a luminous flux is divided or its path is switched so that the same luminous flux is directed to both a taking optical system and a finer optical system. Focusing and camera shake compensation are performed before division of the luminous flux or switching of its path so that images observed through a finder are already in focus and compensated for camera shakes. The lens barrel has multiple movable segments to allow the taking optical system and the finder optical system to be moved out simultaneously. To achieve zooming, a holding member for holding both a focusing lens unit and other lens units is moved so that all these lens units are moved simultaneously. Adjustment of the focusing lens unit, necessitated as a result of zooming, is achieved by moving a part of the focusing lens unit within the holding member.

    摘要翻译: 在变焦镜头的透镜镜筒中,光束被分割或者其路径被切换,使得相同的光通量被引导到拍摄光学系统和更精细的光学系统。 在分配光束或其路径切换之前执行聚焦和相机抖动补偿,以便通过取景器观察的图像已经被对焦并被补偿用于相机抖动。 透镜镜筒具有多个可动部分,以允许拍摄光学系统和取景器光学系统同时移出。 为了实现变焦,移动用于保持聚焦透镜单元和其它透镜单元的保持构件,使得所有这些透镜单元同时移动。 通过将聚焦透镜单元的一部分移动到保持构件内来实现由于变焦而需要调整聚焦透镜单元。