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1. 发明授权

US5271677A Method for eliminating whirl instability in a gas supported bearing 失效
标题翻译：消除气体支撑轴承旋转不稳定的方法
公开(公告)号：US5271677A
公开(公告)日：1993-12-21
申请号：US952600
申请日：1992-09-28
申请人： Randy J. Sherman , August O. Weilbach , Derald F. Hanson , C. Dwight Smith
发明人： Randy J. Sherman , August O. Weilbach , Derald F. Hanson , C. Dwight Smith
IPC分类号： F16C33/10 , F16C39/06 , H02K5/16 , H02K7/09 , F16C32/06
CPC分类号： F16C33/106 , F16C17/026 , F16C32/0427 , F16C33/1065 , F16C39/063 , H02K5/163 , H02K7/09
摘要： A gas supported bearing includes a first stationary bearing element having a longitudinal axis and a first bearing surface. A second rotating bearing element is coaxially aligned with respect to the first bearing element and includes a second bearing surface. A pneumatic load ramp is formed in one of the bearing surfaces to apply an asymmetric load to either bearing element to eliminate bearing whirl instability.
摘要翻译：气体支撑轴承包括具有纵向轴线和第一支承表面的第一固定轴承元件。第二旋转轴承元件相对于第一轴承元件同轴对准，并且包括第二支承表面。在一个轴承表面上形成气动负载斜坡，以对轴承元件施加不对称负载以消除轴承旋转不稳定性。

2. 发明授权

US4537465A Apparatus with two input beams for generating optical scans 失效
标题翻译：具有用于产生光学扫描的两个输入光束的装置
公开(公告)号：US4537465A
公开(公告)日：1985-08-27
申请号：US501504
申请日：1983-06-06
申请人： Randy J. Sherman , Derald F. Hanson
发明人： Randy J. Sherman , Derald F. Hanson
IPC分类号： G02B26/12 , G02B27/00 , G02B27/17 , G02B27/14
CPC分类号： G02B26/129 , G02B27/0031
摘要： A system is disclosed for transforming a collimated beam of light into a beam of light which repetitively scans a fixed path by utilizing first and second mirrors repetitively rotated through a predetermined angular displacement. The angle between each mirror facet and mirror axis of rotation varies and defines a facet to axis error which is eliminated by the present invention. A first mirror receives an upper input beam and repetitively generates a first scan. A second mirror receives a lower input beam and repetitively generates a second scan. First and second redirecting means such as first and second prisms form first and second redirected scans which are ultimately reflected from the mirrors to generate a plurality of first and second output scans. A lens converges the first and second output scans onto a fixed path such that the scanner optical output beam repetitively scans the fixed path and eliminates the effect of the facet to axis errors of the first and second mirrors.
摘要翻译：公开了一种用于将准直光束变换为通过利用经过预定角位移反复旋转的第一和第二反射镜重复地扫描固定路径的光束的系统。每个镜面和反射镜旋转轴之间的角度变化并且限定了由本发明消除的小面与轴的误差。第一反射镜接收上输入光束并重复地产生第一扫描。第二镜接收较低的输入光束并重复地产生第二次扫描。第一和第二重定向装置例如第一和第二棱镜形成第一和第二重定向扫描，其最终从反射镜反射以产生多个第一和第二输出扫描。 A透镜将第一和第二输出扫描会聚到固定路径上，使得扫描器光学输出光束重复地扫描固定路径并消除小面对第一和第二反射镜的轴误差的影响。

3. 发明授权

US4433894A Method and apparatus for generating optical scans 失效
标题翻译：用于产生光学扫描的方法和装置
公开(公告)号：US4433894A
公开(公告)日：1984-02-28
申请号：US320331
申请日：1981-11-12
申请人： Derald F. Hanson , Randy J. Sherman
发明人： Derald F. Hanson , Randy J. Sherman
IPC分类号： G02B26/12 , G02B27/00 , G02B27/17
CPC分类号： G02B27/0031 , G02B26/129
摘要： A system is disclosed for transforming a collimated beam of light, such as that generated by a laser, into a beam of light which repetitively scans a fixed path by utilizing a mirror which is repetitively rotated through a predetermined angular displacement. The angle between the mirror axis of rotation and the mirror position relative to the axis varies between subsequent mirror rotations and defines a scanning beam rotational axis error which is eliminated by the present invention. An input beam of collimated light is directed onto the rotating mirror along a first path to produce a first scanned reflected output beam for each rotation of the mirror. A second scanned reflected output beam is generated by redirecting the first scanned reflected output beam through a prism and back onto the mirror along a second path. The second path is vertically displaced from the first path by a distance related to the mirror rotational axis error. Each point at which the second scanned output beam intercepts the mirror is laterally offset from a corresponding point at which the input beam intercepts the mirror by a distance related to the relative angle between the mirror and the input light beam. The second scanned reflected output beam is reflected from the mirror to generate a third scanned reflected output beam for each deflection of the mirror. The repetitive deflections of the mirror produce a plurality of third scanned reflected output beams which define a grouping of non-coincident surfaces which are also nonintersecting with respect to the input beam. The third scanned reflected output beams are converged onto the fixed path such that the optical output beam repetitively scans the fixed path without any perceptible deviations caused by the mirror rotational axis error.
摘要翻译：公开了一种用于将诸如由激光产生的准直光束变换成通过利用重复地旋转了预定角位移的反射镜重复地扫描固定路径的光束的系统。反射镜旋转轴线和反射镜相对于轴的位置之间的角度在随后的反射镜旋转之间变化，并且限定了本发明消除的扫描光束旋转轴误差。准直光的输入光束沿着第一路径被引导到旋转镜上，以产生用于反射镜的每次旋转的第一扫描反射的输出光束。第二扫描的反射输出光束通过将第一扫描的反射输出光束重新定向穿过棱镜并沿着第二路径返回到反射镜而产生。第二路径从第一路径垂直移位与反射镜旋转轴误差相关的距离。第二扫描输出光束拦截反射镜的每个点横向偏离相应的点，在该点处，输入光束将反射镜与反射镜和输入光束之间的相对角度相隔一定距离。第二扫描的反射输出光束从反射镜反射，以产生用于反射镜的每个偏转的第三扫描的反射输出光束。反射镜的重复偏转产生多个第三扫描的反射输出光束，其限定了一组不相关的表面，这些表面也相对于输入光束是不间断的。第三扫描的反射输出光束会聚到固定路径上，使得光输出光束重复地扫描固定路径而没有由反射镜旋转轴误差引起的任何可察觉的偏差。

4. 发明授权

US5181783A Apparatus for eliminating whirl instability in a gas supported bearing 失效
标题翻译：用于消除气体支撑轴承中的漩涡不稳定性的装置
公开(公告)号：US5181783A
公开(公告)日：1993-01-26
申请号：US752017
申请日：1991-08-29
申请人： Randy J. Sherman , August O. Weilbach , Derald F. Hanson , C. Dwight Smith
发明人： Randy J. Sherman , August O. Weilbach , Derald F. Hanson , C. Dwight Smith
IPC分类号： F16C33/10 , F16C39/06 , H02K5/16 , H02K7/09
CPC分类号： F16C33/106 , F16C17/026 , F16C33/1065 , F16C39/063 , H02K5/163 , H02K7/09
摘要： A gas supported bearing includes a first stationary bearing element having a longitudinal axis and a first bearing surface. A second rotating bearing element is coaxially aligned with respect to the first bearing element and includes a second bearing surface. A pneumatic load ramp is formed in one of the bearing surfaces to apply an asymmetric load to either bearing element to eliminate bearing whirl instability.
摘要翻译：气体支撑轴承包括具有纵向轴线和第一支承表面的第一固定轴承元件。第二旋转轴承元件相对于第一轴承元件同轴对准，并且包括第二支承表面。在一个轴承表面上形成气动负载斜坡，以对轴承元件施加不对称负载以消除轴承旋转不稳定性。

5. 发明授权

US4509819A Optical beam pulse generator 失效
标题翻译：光束脉冲发生器
公开(公告)号：US4509819A
公开(公告)日：1985-04-09
申请号：US501401
申请日：1983-06-06
申请人： Randy J. Sherman , Derald F. Hanson
发明人： Randy J. Sherman , Derald F. Hanson
IPC分类号： G02B26/12 , G02B27/00 , G02B27/17 , G02B17/00
CPC分类号： G02B26/129
摘要： An optical beam pulse generator comprises segmented reflecting means aligned to receive an input light beam. The segmented and reflecting means includes a plurality of circumferentially spaced apart mirror facets having a centrally located, vertically oriented axis of rotation and mirror facet to axis errors. The segmented reflecting means is rotated to sequentially reflect the input beam to generate a pulsed beam. A prism or similar device redirects the pulse beam back onto the reflecting means to generate a redirected pulse beam vertically displaced from the pulse beam by a distance related to the mirror facet to axis error and laterally offset from the pulse beam by a distance related to the angle between the mirror facet and the input light beam. The redirected pulsed beam is reflected from each of the mirror facets to generate a pulsed reflected output beam.
摘要翻译：光束脉冲发生器包括对准以接收输入光束的分段反射装置。分段和反射装置包括多个周向间隔开的镜面，其具有位于中心的垂直定向的旋转轴线和镜面与轴线错误。旋转分段反射装置以依次反射输入光束以产生脉冲光束。棱镜或类似装置将脉冲光束重定向回反射装置，以产生从脉冲光束垂直移位一定距离的重定向脉冲光束与镜面相关的轴向误差，并从脉冲光束横向偏移与之相关的距离镜面与输入光束之间的角度。重定向的脉冲光束从每个镜面反射以产生脉冲反射的输出光束。

6. 发明授权

US4388651A Method and apparatus for generating a scanned optical output signal 失效
标题翻译：用于产生扫描光输出信号的方法和装置
公开(公告)号：US4388651A
公开(公告)日：1983-06-14
申请号：US267678
申请日：1981-05-28
申请人： Randy J. Sherman
发明人： Randy J. Sherman
IPC分类号： B41J2/44 , G03G15/04 , H04N3/08
CPC分类号： H04N3/08
摘要： A system is disclosed for transforming a collimated beam of light, such as that generated by a laser, into a line scan or a raster image for projecting onto a screen or other object. The laser beam is directed at a rotating mirror having a plurality of facets disposed at equal circumferential intervals around the mirror axis of rotation. The light reflected from the rotating mirror generates a first scanned reflected output beam. A first reflecting surface is aligned to receive the first scanned reflected output beam and generates a second scanned reflected output beam. This second scanned reflected output beam passes through a first pivot vertex and is directed back onto the rotating mirror facets by a second reflecting surface to generate an angularly amplified output beam which scans a first plane. The angularly amplified output beam is directed through a second pivot vertex and is then deflected through a second plane which is oriented perpendicular to the first plane. The angularly amplified output beam which has been deflected through the first and second planes thereby projects a raster image on a screen.
摘要翻译：公开了一种用于将诸如由激光产生的准直光束变换成用于投影到屏幕或其它物体上的线扫描或光栅图像的系统。激光束被引导到旋转反射镜，该反射镜具有围绕反射镜旋转轴线等间隔设置的多个小面。从旋转镜反射的光产生第一扫描的反射输出光束。对准第一反射表面以接收第一扫描的反射输出光束并产生第二扫描的反射输出光束。该第二扫描的反射输出光束通过第一枢转顶点并且被第二反射表面引导回到旋转镜面，以产生扫描第一平面的角度放大的输出光束。角度放大的输出光束被引导通过第二枢转顶点，然后被偏转通过垂直于第一平面定向的第二平面。已经偏转通过第一和第二平面的角度放大的输出光束从而在屏幕上投射光栅图像。

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