Scanning devices and methods using surface emitting laser diodes
    1.
    发明申请
    Scanning devices and methods using surface emitting laser diodes 审中-公开
    使用表面发射激光二极管的扫描装置和方法

    公开(公告)号:US20080308639A1

    公开(公告)日:2008-12-18

    申请号:US12221848

    申请日:2008-08-07

    IPC分类号: G06K7/10

    CPC分类号: G06K7/10702 G06K7/10742

    摘要: A bar code scanning device, system and method that utilizes one or more vertical cavity surface emitting laser diodes for producing at least one laser beam, where the vertical cavity surface emitting laser diodes are disposed on a substrate, and wherein the produced laser beam is substantially an essential single spatial mode laser beam. The bar code scanning device, system and method of present invention also comprise a photodiode attached to the substrate and arranged to receive at least a portion of the beam of light reflected off the scanned bar code or symbol.

    摘要翻译: 一种条形码扫描装置,系统和方法,其利用一个或多个垂直腔表面发射激光二极管来产生至少一个激光束,其中垂直腔表面发射激光二极管设置在衬底上,并且其中所产生的激光束基本上 一个基本的单一空间模式激光束。 本发明的条形码扫描装置,系统和方法还包括光电二极管,其附接到基板并被布置成接收从扫描的条形码或符号反射的光束的至少一部分。

    Enhanced ophthalmic lens
    3.
    发明授权
    Enhanced ophthalmic lens 失效
    增强眼科镜片

    公开(公告)号:US5867246A

    公开(公告)日:1999-02-02

    申请号:US776020

    申请日:1997-01-17

    IPC分类号: G02C7/06 G02C7/02 G02C7/04

    CPC分类号: G02C7/065 G02C7/061

    摘要: A progressive ophthalmic lens including a lens surface having: a lower viewing zone providing good optical quality at a predetermined high surface power over a large area of vision; said predetermined power being determined by the viewer's near prescription (R.sub.x) the horizontal fitting position normally being determined by the near pupillary distance of the wearer, and the vertical fitting position normally being determined by the vertical frame midpoint, an upper viewing zone of lower surface power providing an enhanced range of vision for intermediate or greater viewing distances; and a corridor of relatively low astigmatism extending therebetween; wherein the contours of mean surface power and/or surface astigmatism within the lower viewing zone, upper viewing zone and corridor are generally symmetric about a vertical lens meridian as fitted to the wearer.

    摘要翻译: PCT No.PCT / AU95 / 00695 Sec。 371日期1997年1月17日 102(e)日期1997年1月17日PCT提交1995年10月20日PCT公布。 公开号WO96 / 12984 日期:1996年5月2日包括透镜表面的渐进式眼科镜片具有:在大视野范围内以预定的高表面光焦度提供良好的光学质量的下观察区域; 所述预定功率由观看者的近处方(Rx)确定,水平拟合位置通常由穿戴者的近瞳孔距离确定,垂直配合位置通常由垂直框架中点确定,下表面的上视区 功率为中等或更大观察距离提供增强的视野范围; 以及在其间延伸的相对较低散光的走廊; 其中在下观察区域,上观察区域和走廊内的平均表面力和/或表面像散的轮廓通常对准关于佩戴者佩戴的垂直透镜子午线。

    Single vision lenses
    4.
    发明申请

    公开(公告)号:US20050179859A1

    公开(公告)日:2005-08-18

    申请号:US11103434

    申请日:2005-04-12

    IPC分类号: A61F9/02 G02C7/02 G02C7/06

    CPC分类号: A61F9/022 G02C7/02

    摘要: Optical lens element with a prescription zone, suitable for use in wraparound or protective type eyewear. The element may also include a peripheral vision zone, with no prismatic jump between the zones. Design methods for the prescription zone include temporally rotating a prescription section about a vertical axis through the optical center thereof, and/or decentring the optical axis of said prescription section relative to the geometric axis thereof, and providing partial surface correction for astigmatic and/or mean power errors. For prescription powers in the range −6.0 to +6.0 diopters with 0 to 3 cyl, the optical lens element may be designed such that its front surface can be mounted in a frame of constant curvature of at least 5.0 diopters, with its back surface providing good clearance from temples and eyelashes. Applications include ophthalmic sunglass lenses.