Arrangement for and method of increasing pixel symmetry, especially for image projection arrangements
    51.
    发明申请
    Arrangement for and method of increasing pixel symmetry, especially for image projection arrangements 有权
    增加像素对称性的方法和方法,特别是对于图像投影布置

    公开(公告)号:US20060262179A1

    公开(公告)日:2006-11-23

    申请号:US11131139

    申请日:2005-05-17

    IPC分类号: B41J2/435

    摘要: A lightweight, compact image projection module, especially for mounting in a housing having a light-transmissive window, is operative for causing selected pixels in a raster pattern to be illuminated to produce an image of high resolution of VGA quality in color. The pixels are rendered symmetrical in cross-section by aligning a narrow dimension of a beam spot of a laser beam along scan lines of the raster pattern.

    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使光栅图案中的所选像素被照亮以产生VGA质量的高分辨率图像。 通过沿着光栅图案的扫描线对准激光束的光束点的窄尺寸,使像素在横截面中呈现对称。

    Method and apparatus for controllably reducing power delivered by a laser projection display
    53.
    发明授权
    Method and apparatus for controllably reducing power delivered by a laser projection display 有权
    用于可控地减少由激光投射显示器传递的功率的方法和装置

    公开(公告)号:US07030353B2

    公开(公告)日:2006-04-18

    申请号:US10836813

    申请日:2004-04-30

    IPC分类号: G01J1/32

    CPC分类号: H04N9/3129

    摘要: A method and apparatus are provided to controllably reduce power of a laser projection display (LPD) in response to detecting a variation in a viewing surface. During the operation of the LPD, a controller 142 monitors laser light being reflected from the viewing surface. Since the controller 142 “knows” the amount of power that the LPD is being instructed to deliver, it may compare the known power to the reflected laser light to determine if a foreign object may be in the path of the laser light, and therefore, affecting the magnitude of the laser light. The controller 142 responds to detecting such an event by reducing power to the lasers.

    摘要翻译: 提供了一种方法和装置,用于响应于检测到观察表面的变化而可控地降低激光投影显示器(LPD)的功率。 在LPD的操作期间,控制器142监视从观察表面反射的激光。 由于控制器142“知道”LPD正在被指示传送的功率量,所以它可以将已知功率与反射的激光进行比较,以确定异物是否在激光的路径中,因此, 影响激光的大小。 控制器142通过减少对激光器的功率来响应来检测这种事件。

    Method and apparatus for controllably reducing power delivered by a laser projection display
    54.
    发明申请
    Method and apparatus for controllably reducing power delivered by a laser projection display 有权
    用于可控地减少由激光投射显示器传递的功率的方法和装置

    公开(公告)号:US20050175048A1

    公开(公告)日:2005-08-11

    申请号:US10836813

    申请日:2004-04-30

    IPC分类号: G03B21/14 H04N9/31 H01S3/13

    CPC分类号: H04N9/3129

    摘要: A method and apparatus are provided to controllably reduce power of a laser projection display (LPD) in response to detecting a variation in a viewing surface. During the operation of the LPD, a controller 142 monitors laser light being reflected from the viewing surface. Since the controller 142 “knows” the amount of power that the LPD is being instructed to deliver, it may compare the known power to the reflected laser light to determine if a foreign object may be in the path of the laser light, and therefore, affecting the magnitude of the laser light. The controller 142 responds to detecting such an event by reducing power to the lasers.

    摘要翻译: 提供了一种方法和装置,用于响应于检测到观察表面的变化而可控地降低激光投影显示器(LPD)的功率。 在LPD的操作期间,控制器142监视从观察表面反射的激光。 由于控制器142“知道”LPD正在被指示传送的功率量,所以它可以将已知功率与反射的激光进行比较,以确定异物是否在激光的路径中,因此, 影响激光的大小。 控制器142通过减少对激光器的功率来响应来检测这种事件。

    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。

    RFID device and related method for providing assistance for locating it
    57.
    发明授权
    RFID device and related method for providing assistance for locating it 有权
    RFID设备和相关方法,用于为其定位提供帮助

    公开(公告)号:US08310366B2

    公开(公告)日:2012-11-13

    申请号:US12338230

    申请日:2008-12-18

    申请人: Miklos Stern

    发明人: Miklos Stern

    IPC分类号: G08B21/18 H04Q5/22

    摘要: A method of providing assistance for locating a radio-frequency identification (RFID) device is provided. The RFID device preferably comprises a power source having a power level and a feedback device. The method comprises determining the power level of the power source is below a first predetermined power level, and transmitting a first signal that indicates the power level of the power source is below the first predetermined power level. Thereafter, the method comprises receiving a second signal that instructs the RFID device to activate the feedback device, and operating the feedback device in response to receiving the second signal.

    摘要翻译: 提供了一种提供用于定位射频识别(RFID)设备的辅助方法。 RFID装置优选地包括具有功率电平的电源和反馈装置。 该方法包括确定电源的功率电平低于第一预定功率电平,并且发送指示电源的功率电平的第一信号低于第一预定功率电平。 此后,该方法包括接收指示RFID设备激活反馈设备的第二信号,以及响应于接收到第二信号来操作反馈设备。

    Capacitive comb feedback for high speed scan mirror
    58.
    发明授权
    Capacitive comb feedback for high speed scan mirror 有权
    高速扫描镜的电容梳反馈

    公开(公告)号:US07997742B2

    公开(公告)日:2011-08-16

    申请号:US12054619

    申请日:2008-03-25

    IPC分类号: G03B21/00

    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). Circuitry (500) is provided for measuring the capacitance between interdigitated teeth (212, 214, 912, 914) on the frame (202) and the oscillating portion (204, 904).

    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)。 电路(500)被提供用于测量框架(202)上的叉指齿(212,214,912,914)与振荡部分(204,904)之间的电容。

    Arrangement for and method of projecting an image with linear scan lines
    59.
    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:US07924349B2

    公开(公告)日:2011-04-12

    申请号:US11440815

    申请日:2006-05-25

    IPC分类号: H04N9/31 H04N9/28

    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。

    Photodiode with improved performance in ambient light
    60.
    发明授权
    Photodiode with improved performance in ambient light 有权
    光电二极管在环境光下具有改进的性能

    公开(公告)号:US07891570B2

    公开(公告)日:2011-02-22

    申请号:US11711982

    申请日:2007-02-28

    IPC分类号: G02B26/10

    CPC分类号: G06K7/10554 G06K7/10851

    摘要: An arrangement for improving performance of a sensor operative for collecting light from a target to generate a data signal in a presence of ambient light, includes a sample and hold circuit for operating the sensor during a sampling time period in which the sensor only collects the ambient light to generate an ambient signal, and during a holding time period in which the sensor collects both the ambient light and the light from the target to generate a composite signal comprised of the ambient signal and the data signal; and a subtracting circuit operative for subtracting the ambient signal from the composite signal to produce the data signal as an output.

    摘要翻译: 用于改善传感器的性能的装置,该传感器用于在存在环境光的情况下收集来自目标的光以产生数据信号,包括用于在传感器仅收集环境的采样时间段期间操作传感器的采样和保持电路 光产生环境信号,并且在传感器收集来自目标的环境光和光的保持时间段期间,以产生由环境信号和数据信号组成的复合信号; 以及减法电路,用于从复合信号中减去环境信号以产生数据信号作为输出。