公开(公告)号：US20110297853A1

公开(公告)日：2011-12-08

申请号：US12792222

申请日：2010-06-02

申请人： Rong LIU ,  Edward Barkan ,  Mark Drzymala ,  Igor Vinogradov

发明人： Rong LIU ,  Edward Barkan ,  Mark Drzymala ,  Igor Vinogradov

IPC分类号： G06K7/10

CPC分类号： G06K7/10732 ,  G06K7/10831

摘要： A substantially uniform distributed illumination pattern of light is generated on and along a symbol to be read by image capture. A solid-state imager is mounted on a tilted printed circuit board in a tilted handle of an ergonomic reader. An imaging lens assembly captures return light over a field of view from the symbol along an imaging axis, and projects the captured return light onto the imager. An illumination light source is mounted on the board for emitting illumination light at an acute angle of inclination relative to the imaging axis. An optical component includes a first lens portion with a polynomial incident surface for intercepting, bending and aligning the emitted illumination light to generate the pattern in a scan direction along the symbol, and a second lens portion with a toroidal or cylindrical aspherical surface for collimating the aligned illumination light to generate the pattern in a transverse direction.

摘要翻译： 沿着要通过图像捕获读取的符号并沿着符号产生基本均匀的分布照明图案。 固态成像仪安装在人体工学读取器的倾斜手柄上的倾斜印刷电路板上。 成像透镜组件沿着成像轴从符号的视场中捕获返回光，并将捕获的返回光投射到成像器上。 照明光源安装在板上用于发射相对于成像轴线的锐角的照明光。 光学部件包括具有多项式入射表面的第一透镜部分，用于截取，弯曲和对齐发射的照明光以沿着符号在扫描方向上产生图案，以及具有环形或圆柱形非球面的第二透镜部分，用于准直 对准的照明光以在横向上产生图案。

公开(公告)号：US20130119137A1

公开(公告)日：2013-05-16

申请号：US13295406

申请日：2011-11-14

申请人： Rong LIU ,  David TSI-SHI ,  Jean TU ,  Michael VEKSLAND

发明人： Rong LIU ,  David TSI-SHI ,  Jean TU ,  Michael VEKSLAND

IPC分类号： G06K7/10

CPC分类号： G06K7/10831 ,  G02B5/005 ,  G02B7/003 ,  G06K7/10722

摘要： An apparatus and method for imaging a target, includes a housing having a presentation area, a solid-state imaging sensor having an imaging array of image sensors looking at a field of view that extends through the presentation area to the target, and an imaging lens assembly for capturing return light over the field of view from the target through the presentation area, and for projecting the captured return light onto the imaging array during imaging of the target. The assembly has a plurality of lenses, an aperture stop, and a holder for holding the lenses and the aperture stop in spaced relation along an optical axis. The aperture stop has a non-rotationally symmetrical aperture through which the optical axis extends. Alignment elements on the imaging lens assembly are used to align the non-rotationally symmetrical aperture with the imaging array.

摘要翻译： 一种用于对目标进行成像的装置和方法，包括具有呈现区域的壳体，固态成像传感器，其具有观看视场的成像阵列，所述成像阵列延伸穿过所述呈现区域到所述目标，以及成像透镜 用于捕获从目标通过呈现区域的视野上的返回光的组件，以及用于在目标成像期间将捕获的返回光投射到成像阵列上。 组件具有多个透镜，孔径光阑以及保持器，用于沿着光轴保持透镜和孔径光阑间隔开。 孔径光阑具有非旋转对称的孔径，光轴延伸穿过该孔。 使用成像透镜组件上的对准元件将非旋转对称的孔与成像阵列对准。

公开(公告)号：US20130001308A1

公开(公告)日：2013-01-03

申请号：US13175245

申请日：2011-07-01

申请人： Rong LIU ,  David TSI-SHI

发明人： Rong LIU ,  David TSI-SHI

IPC分类号： G06K7/14 ,  H04N5/225

CPC分类号： G06K7/10722 ,  G06K7/10831

摘要： A compact hybrid imaging lens assembly captures return light from a target over a field of view of a linear array of image sensors of a solid-state imager, and projects the captured return light onto the array during electro-optical reading of the target. The assembly includes a plastic lens for optical aberration correction, a glass lens spaced away from the plastic lens along an optical axis, and an aperture stop between the lenses and having an asymmetrical aperture through which the optical axis extends. The glass lens has substantially all the optical power of the imaging lens assembly for thermal stability, and the plastic lens has substantially no optical power. A holder holds the lenses and the aperture stop away from the array. Alignment elements on the plastic lens align the asymmetrical aperture relative to the linear array.

摘要翻译： 紧凑的混合成像透镜组件在固态成像器的图像传感器的线性阵列的视野上捕获来自目标的返回光，并且在目标的电光学读取期间将捕获的返回光投射到阵列上。 该组件包括用于光学像差校正的塑料透镜，沿着光轴与塑料透镜间隔开的玻璃透镜，以及透镜之间的孔径光阑，并且具有光轴延伸穿过的不对称孔。 玻璃透镜具有用于热稳定性的成像透镜组件的基本上所有光学功率，并且塑料透镜基本上没有光学功率。 支架将透镜和孔径光阑保持在远离阵列的位置。 塑料透镜上的对准元件相对于线性阵列对准不对称孔。