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公开(公告)号：US5105070A
公开(公告)日：1992-04-14
申请号：US625257
申请日：1990-12-10
IPC分类号： G06K7/10
CPC分类号： G06K7/10871 , G06K7/10881 , G06K7/109
摘要： A portable bar code scanner includes a support member and a housing member rotatably mounted on the support member and having a pair of sloping supporting surfaces oriented at an angle to each other and a floor portion on which is mounted a reflecting mirror. One or both of the sloping supporting surfaces may include a transparent substrate. A source of scanning light beams such as a hand-held scanner is mounted adjacent the other sloping supporting surface for projecting a plurality of scanning light beams in the form of a scan pattern at the reflecting mirror which reflects the scan pattern onto the transparent substrate over which a bar code label is passed enabling the scanning light beams to scan the bar code label. The housing member may be rotated up to one hundred and eighty degrees to position the transparent substrate in a number of scanning positions.
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公开(公告)号：US5892214A
公开(公告)日：1999-04-06
申请号：US752093
申请日：1996-11-20
IPC分类号： G06K7/10
CPC分类号： G06K7/10693
摘要： A bar code scanner includes a window and a rotary spinner mounted therebelow having a plurality of circumferentially adjoining mirrored facets for sweeping light along a scanned arc. A light source projects a scan beam on the spinner, and a plurality of pattern mirrors are optically aligned with the spinner along the scanned arc in a forward path for diverting the scan beam outwardly through the window to a bar code for effecting a scattered beam therefrom. A collection mirror is optically aligned with the spinner along the scanned arc for receiving the scattered beam in a return path from the pattern mirrors and spinner in turn. A detector is optically aligned with the collection mirror for receiving the scattered beam, and a decoder is provided for decoding the scattered beam.
摘要翻译： 条形码扫描器包括窗口和安装在其下方的旋转旋转器，其具有多个周向相邻的镜面，用于沿扫描弧扫光。 光源将扫描光束投射到旋转器上，并且多个图案反射镜沿着扫描的弧在前向路径中与旋转器光学对准，用于将扫描光束向外通过窗口转移到条形码，以实现从其中的散射光束 。 收集镜与沿着扫描弧的旋转器光学对准，用于接收来自图案反射镜和旋转器的返回路径中的散射光束。 检测器与用于接收散射光束的收集镜光学对准，并且提供解码器来解码散射光束。
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公开(公告)号：US5164584A
公开(公告)日：1992-11-17
申请号：US720080
申请日：1991-06-24
CPC分类号： G06K7/10871 , G02B3/0087 , G02B3/10 , G02B5/001 , G02B6/4206 , G06K7/10702
摘要： An optical scanner which employs a special lens to maximize the percentage of focused laser light that passes through a collimating aperture. The optical scanner also includes a laser diode and a housing containing the laser diode and having a wall with the aperture therethrough for collimating light from the lens. The lens may be a gradient index (grin) lens, a bi-zonal lens, or an axicon lens. Another scanner is disclosed which employs an axicon lens to focus light reflected from an article having a bar code label to a detector for a range of article distances from the scanner.
摘要翻译： 一种光学扫描器，其采用专用透镜来最大化通过准直孔的聚焦激光的百分比。 光学扫描器还包括激光二极管和包含激光二极管的壳体，并且具有穿过其中的孔的壁用于准直来自透镜的光。 透镜可以是渐变折射率（咧嘴）透镜，双区镜片或透镜镜片。 公开了另一种扫描仪，其使用旋转透镜将从具有条形码标签的物品反射的光聚焦到与扫描仪的物品距离范围内的检测器。
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4.发明授权
公开(公告)号：US5221832A
公开(公告)日：1993-06-22
申请号：US759317
申请日：1991-09-13
IPC分类号： G06K7/10
CPC分类号： G06K7/10871
摘要： A method for optimizing the reading ability of an omnidirectional optical scanner for various bar code label aspect ratios which can effectively double the angular coverage of an ordinary scan module. For high aspect ratio bar code labels, the method involves increasing the speed ratio between a first scanner motor within a scan module and a second scanner motor within a tilted mirror assembly by decreasing the speed of the second scanner motor by a predetermined amount. For other bar code labels, the method involves decreasing the speed ratio between the first scanner motor and the second scanner motor by increasing the speed of the second scanner motor by the predetermined amount. The method uses programming tags and speed control circuitry to change the speed of the second motor. The method also includes the steps of decreasing the swipe speed of articles having high aspect ratio bar code labels and increasing the swipe speed of other articles.
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公开(公告)号：US5719385A
公开(公告)日：1998-02-17
申请号：US569540
申请日：1995-12-08
IPC分类号： G06K7/10
CPC分类号： G06K7/10643 , G06K7/10693
摘要： An optical scanner for reading two-dimensional bar code labels. A rotating reflector directs a laser beam towards a plurality of pattern mirrors during a first mode of operation to produce a plurality of different scan lines forming a multi-line scan pattern for collecting light from an article having a one-dimensional bar code label, and directs the laser beam towards one of the pattern mirrors during a second mode of operation to produce a single scan line for collecting light from an article having a two-dimensional bar code label. A single tilted mirror assembly, having a motor for rotating a drive shaft and a mirror mounted at an angle to the drive shaft, reflects the plurality of different scan lines towards the article having the one-dimensional bar code label during the first mode of operation, and reflects the one scan line from the scan module towards the article having the two-dimensional bar code label during the second mode of operation.
摘要翻译： 一种用于读取二维条形码标签的光学扫描仪。 旋转反射器在第一操作模式期间将激光束引向多个图案反射镜，以产生多条不同的扫描线，其形成用于从具有一维条形码标签的物品收集光线的多线扫描图案;以及 在第二操作模式期间将激光束引导到图案反射镜之一以产生用于从具有二维条形码标签的物品收集光的单个扫描线。 具有用于使驱动轴旋转的马达和与驱动轴成一角度安装的反射镜的单个倾斜反射镜组件在第一操作模式期间将多条不同的扫描线反射到具有一维条形码标签的物品 并且在第二操作模式期间将来自扫描模块的一条扫描线反映到具有二维条形码标签的物品。
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6.发明授权
公开(公告)号：US5179271A
公开(公告)日：1993-01-12
申请号：US762703
申请日：1991-09-19
IPC分类号： G06K7/10
CPC分类号： G06K7/10871
摘要： A compact optical scanning system includes a rotating polygon having a plurality of curved mirror portions and a plurality of mirror facets, a collection mirror member having a pair of reflective surfaces and a source of scanning light beams which projects the scanning light beams at one of the reflecting surfaces in the collection mirror. By deflecting the scanning light beams off the curved mirror portions, the mirror facets and the pair of reflective surfaces, a single line scan pattern composed of a plurality of single line scan lines each located at a different focal plane will be generated to scan a bar code label. By changing the orientation of the mirror facets together with changing the radius curvature of the curved mirror portions, an axial invariant bow-tie scan pattern composed of multiple scan lines focused at a different focal plane will be generated.
摘要翻译： 一种紧凑的光学扫描系统，包括具有多个弯曲镜部分和多个镜面的旋转多边形，具有一对反射表面的收集镜部件和将扫描光束投射到其中一个的扫描光束的源 在收集镜中反射表面。 通过将扫描光束偏离弯曲的镜面部分，镜面和一对反射表面，将产生由位于不同焦平面处的多条单行扫描线组成的单线扫描图案，以扫描条 代码标签。 通过改变镜面的方向以及改变曲面镜部分的半径曲率，将产生由聚焦在不同焦平面处的多个扫描线组成的轴向不变的蝴蝶结扫描图案。
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公开(公告)号：US20090251666A1
公开(公告)日：2009-10-08
申请号：US12455941
申请日：2009-06-09
摘要： An adaptive optics phoropter is aligned with a Badal optometer and an adjustable aperture component to subjectively determine an optimal vision correction as a power profile for an ophthalmic lens or ablating a cornea. The optimal power profile is preferably determined in an iterative process by adjusting the vergence of the Badal optometer and aperture size of the adjustable aperture component for power profiles with presbyopic power zones having different amplitudes, shapes, widths, and/or de-centering. Also included is a method of recursively computing a refractive surface with a regular presbyopic power zone (e.g., according to the optimal power profile) and adding it onto an underlying irregular Zernike-basis-set aberration-corrected surface in a linear fashion for fabricating an ophthalmic lens.
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8.发明授权Methods and apparatus for determining a position of a rotating optical element in a bar code scanner 有权用于确定条形码扫描器中的旋转光学元件的位置的方法和装置公开(公告)号：US06827271B2
公开(公告)日：2004-12-07
申请号：US09878462
申请日：2001-06-11
申请人： Joseph M. Lindacher
发明人： Joseph M. Lindacher
IPC分类号： G02B2600
CPC分类号： G06K7/10693
摘要： Techniques for determining a position for a rotating optical element, or spinner, of a bar code scanner are described. A diffractive element is positioned so as to be struck by a laser beam produced by a laser source and reflected from the spinner when the spinner is in a reference position. The diffractive element diffracts the reflected beam to produce a diffracted line which strikes a reference position photodetector, thereby causing the reference position photodetector to produce a reference position photosignal. The reference position photosignal can be read by a controller to determine when the spinner is in the reference position and used by the controller as a signal to deactivate the laser source. The position of the spinner during its rotation can be computed based on the speed of the spinner and the time elapsed since the occurrence of the reference position photosignal, and the laser source can be activated when timing information indicates that the spinner is in an appropriate position to begin a single line scan pattern and deactivated when the reference position photosignal indicates that the spinner is in the correct position to terminate the single line scan pattern.
摘要翻译： 描述了用于确定条形码扫描器的旋转光学元件或旋转器的位置的技术。 衍射元件定位成当旋转器处于参考位置时由激光源产生的激光束和从旋转器反射而被撞击。 衍射元件衍射反射光束，产生与参考点光电检测器相撞的衍射线，从而使基准位置光电检测器产生参考位置光信号。 控制器可以读取参考位置光信号，以确定微调器何时处于参考位置并由控制器使用，作为激活激光源的信号。 旋转器旋转时的位置可以基于旋转器的速度和从参考位置光信号发生起经过的时间来计算，并且当定时信息指示旋转器处于适当的位置时激光源可被激活 开始单行扫描模式，并且当参考位置光信号指示微调器处于正确位置以终止单行扫描模式时停用。
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公开(公告)号：US07828441B2
公开(公告)日：2010-11-09
申请号：US12455941
申请日：2009-06-09
摘要： An adaptive optics phoropter is aligned with a Badal optometer and an adjustable aperture component to subjectively determine an optimal vision correction as a power profile for an ophthalmic lens or ablating a cornea. The optimal power profile is preferably determined in an iterative process by adjusting the vergence of the Badal optometer and aperture size of the adjustable aperture component for power profiles with presbyopic power zones having different amplitudes, shapes, widths, and/or de-centering. Also included is a method of recursively computing a refractive surface with a regular presbyopic power zone (e.g., according to the optimal power profile) and adding it onto an underlying irregular Zernike-basis-set aberration-corrected surface in a linear fashion for fabricating an ophthalmic lens.
摘要翻译： 自适应光学瞄准器与巴达尔验光仪和可调节孔径组件对准，以主观地确定最佳视力矫正作为眼科镜片的功率曲线或消融角膜。 最佳功率曲线优选地通过调整巴达尔光度计的聚光度和可调节孔径分量的孔径尺寸来确定迭代过程，以便功率曲线与具有不同幅度，形状，宽度和/或去定心的老花眼功率区域。 还包括一种递归地计算具有规则的老花眼功率区域的折射表面的方法（例如，根据最佳功率曲线），并以线性方式将其添加到基本的不规则的Zernike基组的像差校正表面上，以制造 眼科镜片
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公开(公告)号：US20080165324A1
公开(公告)日：2008-07-10
申请号：US12004243
申请日：2007-12-20
摘要： An adaptive optics phoropter is aligned with a Badal optometer and an adjustable aperture component to subjectively determine an optimal vision correction as a power profile for an ophthalmic lens or ablating a cornea. The optimal power profile is preferably determined in an iterative process by adjusting the vergence of the Badal optometer and aperture size of the adjustable aperture component for power profiles with presbyopic power zones having different amplitudes, shapes, widths, and/or de-centering. Also included is a method of recursively computing a refractive surface with a regular presbyopic power zone (e.g., according to the optimal power profile) and adding it onto an underlying irregular Zernike-basis-set aberration-corrected surface in a linear fashion for fabricating an ophthalmic lens.
摘要翻译： 自适应光学瞄准器与巴达尔验光仪和可调节孔径组件对准，以主观地确定最佳视力矫正作为眼科镜片的功率曲线或消融角膜。 最佳功率曲线优选地通过调整巴达尔光度计的聚光度和可调节孔径分量的孔径尺寸来确定迭代过程，以便功率曲线与具有不同幅度，形状，宽度和/或去定心的老花眼功率区域。 还包括一种递归地计算具有规则的老花眼功率区域的折射表面的方法（例如，根据最佳功率曲线），并以线性方式将其添加到基本的不规则的Zernike基组的像差校正表面上，以制造 眼科镜片
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