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    • 2. 发明申请
    • TWO - DIMENSIONAL CODE SCANNER WITH GUIDE ILLUMINATION
    • 具有指导照明的两维码扫描器
    • WO2008141266A1
    • 2008-11-20
    • PCT/US2008/063383
    • 2008-05-12
    • OPTOELECTRONICS CO., LTD.OPTICON, INC.TAKAHASHI, Tohru
    • TAKAHASHI, Tohru
    • G06K7/10
    • G06K7/10702
    • A bar code scanner is disclosed which may include an LED. The LED includes a light source that emits light. The bar code scanner may also include a lens set. The lens set includes a back side and a front side. The front side includes a plurality of spherical lobes. When light from the light source is incident on the back side of the lens set, each of the spherical lobes preferably focuses the light into a light beam, which is then generated from each of the lobes. In certain embodiments of the invention, the LED can be mounted on the back side of a circuit board in such a fashion as to protrude through the aperture in the circuit board and then to shine light on the lens set.
    • 公开了一种条形码扫描器,其可以包括LED。 LED包括发光的光源。 条形码扫描器还可以包括透镜组。 透镜组包括后侧和前侧。 前侧包括多个球形凸起。 当来自光源的光入射到透镜组的背面时,每个球形波瓣优选地将光聚焦成光束,然后从每个凸角产生光束。 在本发明的某些实施例中,LED可以安装在电路板的背面,以便突出穿过电路板中的孔,然后将光照射在透镜组上。