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    • 3. 发明公开
    • Retro-reflective scan module for electro-optical readers
    • RückreflektierendeAbtasteinheitfürelektro-optischeLesegeräte
    • EP1039409A2
    • 2000-09-27
    • EP00106449.2
    • 2000-03-24
    • SYMBOL TECHNOLOGIES, INC.
    • Shepard, HowardBarkan, Edward D.Dvorkis, PaulMetlitsky, BorisBridgelall, RajGurevich, VladimirKrichever, MarkLi, YajunKatz, JosephLuciano, Vincent
    • G06K7/10
    • G06K7/10653G06K7/10683
    • A miniaturized electro-optical, retro-reflective scanning module is disclosed. The module has a base, a first circuit board, and a second circuit board mounted substantially orthogonal to the first circuit board. The base supports a light emitter for producing a scanning beam and optical elements for directing and collecting light energy. The emitted beam reflects off a fold mirror onto a reflector mounted on a drive for oscillation. The oscillating reflector, in turn, redirects the beam onto an indicia being read. Because of the oscillation of the reflective elements, the beam scans the indicia. The reflected light is reflected off the oscillating reflector and directed to the collection mirror before reaching the detector. A detector included in the module senses light reflected from an indicia scanned by the beam. The beam and the field of view of the detector are simultaneously scanned. Various embodiments of the oscillation drive and optical arrangements for minimizing the size of the scanning module are disclosed.
    • 公开了一种小型化的电光反光扫描模块。 模块具有底座,第一电路板和大致正交于第一电路板安装的第二电路板。 基座支撑用于产生扫描光束的光发射器和用于引导和收集光能的光学元件。 发射的光束从折叠镜反射到安装在用于振荡的驱动器上的反射器上。 振荡反射器又将光束重定向到被读取的标记上。 由于反射元件的振荡,光束扫描标记。 反射光从振荡反射器反射并在到达检测器之前被引导到收集镜。 包括在模块中的检测器感测由光束扫描的标记反射的光。 探测器的光束和视野被同时扫描。 公开了用于使扫描模块的尺寸最小化的振荡驱动和光学装置的各种实施例。
    • 4. 发明公开
    • Compact bar code scanning arrangement
    • Kompakte Strichkode-Abtastanordnung
    • EP0827102A2
    • 1998-03-04
    • EP97202999.5
    • 1992-11-04
    • SYMBOL TECHNOLOGIES, INC.
    • Bard, SimonSwartz, JeromeMetlitsky, BorisStratienco, AskoldKrichever, MarkKatz, Joseph
    • G06K7/10
    • G06K7/1098G06F1/163G06F3/0346G06F2203/0331G06K7/10564G06K7/10584G06K7/10653G06K7/10891G06K2207/1016
    • Several different embodiments are disclosed of a simple, compact or miniature bar code scanner which is capable of scanning in any one of several modes. In a preferred embodiment, the compact bar code scanner is used in a small housing mounted on an index finger of an operator such that the natural pointing direction of the index finger aims the scanner. In one embodiment, a high frequency flexural member, with a scanning mirror and permanent magnet mounted thereon, is supported by a low frequency flexural member. An x drive coil is positioned by the permanent magnet, and with an applied high frequency x drive signal, causes the high frequency flexural member, with the permanent magnet means and scanning mirror mounted thereon, to torsionally oscillate at the frequency of the x drive signal. A y drive coil is also positioned by the permanent magnet, and with an applied low frequency y drive signal, causes the low frequency flexural member to oscillate to cause low frequency y scanning of the scanning mirror, thereby resulting in a raster scan pattern. With an applied high frequency y drive signal, the y coil causes the high frequency flexural member to oscillate at a high frequency to cause high frequency y scanning of the mirror, thereby resulting in an omnidirectional scan pattern. In several disclosed embodiments, the present invention provides a mirrorless beam scanning unit mounted in a finger size ring wherein a light emitter such as a visible light diode is moved back and forth.
    • 公开了能够以多种模式中的任何一种扫描的简单,紧凑或微型条形码扫描器的若干不同实施例。 在优选实施例中,紧凑型条形码扫描器用于安装在操作者的食指上的小外壳中,使得食指的自然指向方向瞄准扫描器。 在一个实施例中,安装有扫描镜和永磁体的高频弯曲构件由低频弯曲构件支撑。 x驱动线圈由永磁体定位,并且施加的高频x驱动信号使得安装有永磁体装置和扫描反射镜的高频弯曲构件以x驱动信号的频率扭转振荡 。 y驱动线圈也由永磁体定位,并且施加的低频y驱动信号使低频弯曲构件振荡以引起扫描反射镜的低频y扫描,从而导致光栅扫描图案。 利用施加的高频y驱动信号,y线圈使高频弯曲构件以高频率振荡,从而对反射镜进行高频y扫描,从而产生全向扫描图案。 在几个公开的实施例中,本发明提供一种安装在手指尺寸环中的无反射镜束扫描单元,其中诸如可见光二极管的光发射器来回移动。