Arrangement for and method of projecting an image with linear scan lines
    51.
    发明授权
    Arrangement for and method of projecting an image with linear scan lines 有权
    使用线性扫描线投影图像的布置方法和方法

    公开(公告)号:US09071770B2

    公开(公告)日:2015-06-30

    申请号:US13040536

    申请日:2011-03-04

    IPC分类号: H04N9/31 H04N9/28 G06F1/16

    摘要: A lightweight, compact image projection module, especially for mounting in a housing having a light-transmissive window, is operative for sweeping a composite laser beam as a pattern of linear scan lines on a planar projection surface and for causing selected pixels arranged along each linear scan line to be illuminated to produce an image of high quality and in color.

    摘要翻译: 特别是用于安装在具有透光窗口的壳体中的轻巧紧凑的图像投影模块可操作用于在复合激光束上扫描作为平面投影表面上的线性扫描线的图案,并且用于使沿着每个线性排列的所选像素 扫描线被照亮以产生高品质和彩色的图像。

    Packaged mirror including mirror travel stops
    56.
    发明授权
    Packaged mirror including mirror travel stops 失效
    包装镜包括镜子行程停止

    公开(公告)号:US06257491B1

    公开(公告)日:2001-07-10

    申请号:US09519576

    申请日:2000-03-06

    IPC分类号: G06K710

    摘要: An integrated optical module for an optical scanner has a lens spaced from a vertical-cavity surface-emitting laser (VCSEL) by a spacer of defined dimensions. The module, in an alternative embodiment, includes a wafer frame, a suspended mirror mounted for oscillation on the frame, a wafer substrate bonded beneath the frame and a wafer cover bonded above the frame. The cover includes a mirror travel stop to protect the mirror against shocks. A VCSEL mounted to the wafer cover produces a beam which is shaped and deflected by a diffractive optical element onto the oscillating mirror. The reflected beam passes out of the module toward an indicia to be read. Large numbers of such devices may be fabricated relatively cheaply using wafer-scale processing and assembly technology. Three large wafers are fabricated corresponding respectively to arrays of substrates, frames and covers. The large wafers are bonded together in a sandwich arrangement, and are then diced to produce the individual scan modules. The modules may provide either one-dimensional or two-dimensional scanning.

    摘要翻译: 用于光学扫描仪的集成光学模块具有通过限定尺寸的间隔件与垂直腔表面发射激光器(VCSEL)间隔开的透镜。 在替代实施例中,该模块包括晶片框架,安装用于在框架上摆动的悬挂镜,结合在框架下方的晶片衬底以及粘结在框架上方的晶片盖。 盖子包括镜子行驶挡板,以防止镜子受到冲击。 安装到晶片盖的VCSEL产生由衍射光学元件成形并偏转到振动反射镜上的光束。 反射光束从模块朝向要读取的标记。 可以使用晶片级处理和组装技术相对便宜地制造大量的这种装置。 制造三个大的晶片,分别对应于基板,框架和盖子的阵列。 大晶片以夹层结构结合在一起,然后被切割以产生各个扫描模块。 模块可提供一维扫描或二维扫描。

    Optical scanner having a reflected light collector including holographic
optical elements
    57.
    发明授权
    Optical scanner having a reflected light collector including holographic optical elements 失效
    具有包括全息光学元件的反射光收集器的光学扫描器

    公开(公告)号:US6029893A

    公开(公告)日:2000-02-29

    申请号:US876681

    申请日:1997-06-17

    IPC分类号: G06K7/10

    CPC分类号: G06K7/10742 G06K7/10702

    摘要: An optical scanner such as a bar code scanner has a window comprising a holographic optical element through which both the outgoing scanning beam and the returned reflective light passes. The frequency distribution of the element may be chosen to achieve certain desirable characteristics, for example the removal of the dead zone immediately in front of the scanner and control of the beam profile and field of view. The element may be divided up into several separate zones or regions one of which is adapted to control the outgoing beam and the other of which is adapted to receive the incoming reflected light and to focus it onto a photodetector.

    摘要翻译: 诸如条形码扫描器的光学扫描仪具有包括全息光学元件的窗口,射出扫描光束和返回的反射光都通过该全息光学元件。 可以选择元件的频率分布以实现某些期望的特性,例如,立即在扫描仪前移除死区并控制光束轮廓和视场。 元件可以被分成几个单独的区域或区域,其中一个区域或区域适于控制输出光束,并且其中一个适于接收入射的反射光并将其聚焦到光电检测器上。

    OPTICAL FEEDBACK FOR HIGH SPEED SCAN MIRROR
    59.
    发明申请
    OPTICAL FEEDBACK FOR HIGH SPEED SCAN MIRROR 审中-公开
    高速扫描镜的光学反馈

    公开(公告)号:US20090251670A1

    公开(公告)日:2009-10-08

    申请号:US12061852

    申请日:2008-04-03

    IPC分类号: G03B21/28 G01B11/02

    摘要: An image projection system (100) has a laser (102, 104, 106) providing at least one beam (103, 105, 107) to a scan mirror apparatus (130) for scanning the at least one beam (103, 105, 107) in two orthogonal directions (404, 406). The scan mirror (130) includes an oscillating portion (204, 904) disposed contiguous to a frame (202) and includes a reflective portion (218, 918) capable of reflecting the beam (103, 105, 107). A light source (502, 602, 702, 802) provides light to the scan mirror (130); and circuitry analyzing the light reflected to determine the position of the oscillating portion (204).

    摘要翻译: 图像投影系统(100)具有向扫描镜装置(130)提供至少一个光束(103,105,107)的激光器(102,104,106),用于扫描至少一个光束(103,105,107) )在两个正交方向(404,406)上。 扫描镜(130)包括邻近框架(202)设置并包括能够反射光束(103,105,107)的反射部分(218,918)的振荡部分(204,904)。 光源(502,602,702,802)向扫描镜(130)提供光; 以及分析反射的光以确定振荡部分(204)的位置的电路​​。

    Multi-Segmented Aiming Diffractive Optical Elements
    60.
    发明申请
    Multi-Segmented Aiming Diffractive Optical Elements 审中-公开
    多分段瞄准衍射光学元件

    公开(公告)号:US20090109534A1

    公开(公告)日:2009-04-30

    申请号:US11931827

    申请日:2007-10-31

    IPC分类号: G02B27/42

    摘要: A system having a light source generating a light beam, a collimating lens collimating the light beam into a collimated light beam and a pattern generating element comprising a diffractive optical element portion and a refractive optical element portion, the pattern generating element creating a target pattern from the collimated light beam incident on the pattern generating element.

    摘要翻译: 一种具有产生光束的光源的系统,将光束准直为准直光束的准直透镜和包括衍射光学元件部分和折射光学元件部分的图案产生元件,所述图案产生元件从 入射在图案生成元件上的准直光束。