Non-contact apparatus and method for measuring surface profile

    公开(公告)号:US20060082787A1

    公开(公告)日:2006-04-20

    申请号:US11205063

    申请日:2005-08-17

    IPC分类号: G01B11/30

    摘要: Embodiments of the invention provide a non-contact method for measuring the surface profile of an object that can include generating a point-type optical signal and projecting it on a rotatable precision optical grating, generating a rotating pattern of light and dark lines onto the object, recording a series of images of the rotating pattern moving across the object with an image receiving device and calculating the surface profile of the object. Other embodiments can include a method to calibrate the system and a non-contact apparatus that generally includes a point-type light source, a rotatably mounted optical grating being configured to project a moving grating image on the object, a processor in communication with the image capturing device and configured to receive image input from the image capturing device and generate a surface profile representation of the object therefrom.

    Ink jet pen having improved ink storage and distribution capabilities
    2.
    发明授权
    Ink jet pen having improved ink storage and distribution capabilities 失效
    喷墨笔具有改进的墨水储存和分配能力

    公开(公告)号:US4794409A

    公开(公告)日:1988-12-27

    申请号:US129030

    申请日:1987-12-03

    IPC分类号: B41J2/05 B41J2/175 G01D15/16

    CPC分类号: B41J2/17513

    摘要: An ink jet pen (or other similar fluid delivery system) wherein primary and secondary ink reservoirs and an ink jet printhead are all interconnected by way of a porous ink-transfer member. The ink will pass directly from the primary ink reservoir to the printhead under a normal or predetermined range of temperatures and pressures. However, for temperatures and pressures outside this range, the secondary reservoir will be brought into operation to give or receive ink to or from the porous ink transfer member and thereby serve to maintain a substantially constant backpressure at the printhead.

    Non-contact apparatus and method for measuring surface profile

    公开(公告)号:US20060103854A1

    公开(公告)日:2006-05-18

    申请号:US11313671

    申请日:2005-12-22

    IPC分类号: G01B11/24

    摘要: Embodiments of the invention provide a non-contact method for measuring the surface profile of an object that can include generating a point-type optical signal and projecting it on a rotatable precision optical grating, generating a rotating pattern of light and dark lines onto the object, recording a series of images of the rotating pattern moving across the object with an image receiving device and calculating the surface profile of the object. Other embodiments can include a method to calibrate the system and a non-contact apparatus that generally includes a point-type light source, a rotatably mounted optical grating being configured to project a moving grating image on the object, a processor in communication with the image capturing device and configured to receive image input from the image capturing device and generate a surface profile representation of the object therefrom.