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1. 发明授权

US4971440A Projection of two orthogonal reference light planes 失效
标题翻译：两个正交参考光平面的投影
公开(公告)号：US4971440A
公开(公告)日：1990-11-20
申请号：US447792
申请日：1989-12-08
申请人： Peter S. Winckler , Daniel R. Klemer , John P. Dugan
发明人： Peter S. Winckler , Daniel R. Klemer , John P. Dugan
IPC分类号： G01B11/26 , G01C15/00
CPC分类号： G01B11/26 , G01C15/004
摘要： An orthogonal light plane generator is associated with a primary light plane generator to convert a portion of a first light plane projected by the primary light plane generator into a second light plane substantially orthogonal to the first light plane. The orthogonal light plane generator comprises a diverter which defines three or more reflecting surfaces for receiving a portion of the first light plane and redirecting that portion as the second light plane. The three or more reflective surfaces are oriented relative to one another such that tilting of the orthogonal light plane generator is compensated to maintain the orthogonality between the two light planes. Tilting about one axis results in offset of the second light plane and tilting about a second axis orthogonal to the first results in a shifting of the sector within which the second light plane is projected, but tilting about either axis does not affect the orthogonality between the planes. Preferably the three or more reflective surfaces are defined by one or more prisms formed of an optical material having an index of refraction which enlarges the sector angle encompassed by the second light plane when compared to mirrored surfaces supported within air. The performance of the diverter can be further enhanced by optical devices positioned at its input and/or output. The optical devices can be one or more conventional lenses or angled wedges of optical material.

2. 发明授权

US5225928A Focus compensating lens for use in extreme temperatures 失效
标题翻译：聚焦补偿镜头用于极端温度
公开(公告)号：US5225928A
公开(公告)日：1993-07-06
申请号：US772068
申请日：1991-10-07
申请人： John P. Dugan
发明人： John P. Dugan
IPC分类号： G02B7/00
CPC分类号： G02B7/008 , Y10S359/90
摘要： A focus compensating lens structure wherein a lens means for collimating laser light produced by a source has an index of refraction which varies with temperature and wavelength to compensate for temperature effects on the wavelength of light produced by the laser source and the length of the mounting on which the source and lens are disposed.
摘要翻译：一种聚焦补偿透镜结构，其中用于准直由源产生的激光的透镜装置具有随温度和波长而变化的折射率，以补偿由激光源产生的光的波长和安装长度的温度影响源和透镜被布置。

3. 发明授权

US5335244A Technique and apparatus using a moveable weak lens 失效
标题翻译：使用可移动弱透镜的技术和设备
公开(公告)号：US5335244A
公开(公告)日：1994-08-02
申请号：US108899
申请日：1993-08-18
申请人： John P. Dugan , James N. Hayes , Steve M. Elliott
发明人： John P. Dugan , James N. Hayes , Steve M. Elliott
IPC分类号： G01C15/00 , G02B7/02 , G02B26/08 , G02B27/30 , H01S3/08
CPC分类号： G02B26/0875 , G01C15/004 , G02B27/30 , G02B7/023
摘要： An assembly for use in a laser instrument which produces a plane of laser light by reflection from a cone. The assembly includes a weak focusing lens which improves the control over the planarity of the plane of light produced. Because it is weak, the weak focusing lens can be positioned over a relatively large distance to produce slight changes in the focus of the beam which is reflected to produce the plane of light. Critical, time consuming, and expensive manufacturing requirements can be relaxed, while improved performance results in superior laser instruments.
摘要翻译：一种用于激光仪器的组件，其通过来自锥体的反射产生激光的平面。该组件包括弱聚焦透镜，其改善了对所产生的光平面的平面性的控制。由于弱聚焦透镜可以位于相对大的距离上以产生被反射以产生光平面的光束的焦点的轻微变化。可以放松关键的，耗时的和昂贵的制造要求，同时改进的性能导致出色的激光仪器。

4. 发明申请

US20110103924A1 System and Method for Unloading Items 有权
标题翻译：卸载物品的系统和方法
公开(公告)号：US20110103924A1
公开(公告)日：2011-05-05
申请号：US12609690
申请日：2009-10-30
申请人： William James Watt , Timothy Bragg , Andrew Stubbs , Matthew D. Verminski , John P. Dugan
发明人： William James Watt , Timothy Bragg , Andrew Stubbs , Matthew D. Verminski , John P. Dugan
IPC分类号： B65G47/04
CPC分类号： B65G49/00 , B65G37/02 , B65G65/00 , B65G67/26
摘要： A method for unloading inventory items includes storing an inventory item on an inventory holder and moving the inventory holder toward an unloading station with a mobile drive unit. Additionally, the method includes moving the inventory holder past a barrier of the unloading station. The method further includes preventing the inventory item from moving past the barrier as the mobile drive unit moves the inventory holder past the barrier.
摘要翻译：用于卸载库存物品的方法包括将库存物品存储在库存持有者上，并将库存持有者用移动驱动单元移动到卸载站。此外，该方法包括使库存持有人移动通过卸载站的障碍物。所述方法还包括当所述移动驱动单元移动所述库存持有者超过所述障碍物时，防止所述库存物品移动通过所述障碍物。

5. 发明授权

US5257279A Adjustable focus technique and apparatus using a moveable weak lens 失效
标题翻译：可调聚焦技术和使用可移动弱透镜的设备
公开(公告)号：US5257279A
公开(公告)日：1993-10-26
申请号：US893260
申请日：1992-06-04
申请人： John P. Dugan , James N. Hayes , Steve Elliott
发明人： John P. Dugan , James N. Hayes , Steve Elliott
IPC分类号： G01C15/00 , G02B7/02 , G02B26/08 , G02B27/30 , H01S3/08
CPC分类号： G02B26/0875 , G01C15/004 , G02B27/30 , G02B7/023
摘要： An assembly for use in a laser instrument which produces a plane of laser light by reflection from a cone. The assembly includes a weak focusing lens which improves the control over the planarity of the plane of light produced. Because it is weak, the weak focusing lens can be positioned over a relatively large distance to produce slight changes in the focus of the beam which is reflected to produce the plane of light. Critical, time consuming, and expensive manufacturing requirements can be relaxed, while improved performance results in superior laser instruments.
摘要翻译：一种用于激光仪器的组件，其通过来自锥体的反射产生激光的平面。该组件包括弱聚焦透镜，其改善了对所产生的光平面的平面性的控制。由于弱聚焦透镜可以位于相对大的距离上以产生被反射以产生光平面的光束的焦点的轻微变化。可以放松关键的，耗时的和昂贵的制造要求，同时改进的性能导致出色的激光仪器。

6. 发明授权

US08444369B2 System and method for unloading items 有权
标题翻译：卸载物品的系统和方法
公开(公告)号：US08444369B2
公开(公告)日：2013-05-21
申请号：US12609690
申请日：2009-10-30
申请人： William James Watt , Timothy Bragg , Andrew Stubbs , Matthew D. Verminski , John P. Dugan
发明人： William James Watt , Timothy Bragg , Andrew Stubbs , Matthew D. Verminski , John P. Dugan
IPC分类号： B65F9/00
CPC分类号： B65G49/00 , B65G37/02 , B65G65/00 , B65G67/26
摘要： A method for unloading inventory items includes storing an inventory item on an inventory holder and moving the inventory holder toward an unloading station with a mobile drive unit. Additionally, the method includes moving the inventory holder past a barrier of the unloading station. The method further includes preventing the inventory item from moving past the barrier as the mobile drive unit moves the inventory holder past the barrier.
摘要翻译：用于卸载库存物品的方法包括将库存物品存储在库存持有者上，并将库存持有者用移动驱动单元移动到卸载站。此外，该方法包括使库存持有人移动通过卸载站的障碍物。所述方法还包括当所述移动驱动单元移动所述库存持有者超过所述障碍物时，防止所述库存物品移动通过所述障碍物。

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