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Holographic laser scanning system employing holographic scanning disc having dual-fringe contrast regions for optimized laser beam scanning and light collection operations
Holographic laser scanning system employing holographic scanning disc having dual-fringe contrast regions for optimized laser beam scanning and light collection operations
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机译:全息激光扫描系统,采用具有双条纹对比度区域的全息扫描盘,以优化激光束扫描和光收集操作
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摘要
Holographic laser scanning system employing a holographic scanning disc with holographic facets having dual-fringe contrast regions optimized for scanning and light collection operations. In the preferred embodiments, the first region of each holographic facet is optimized for laser light having a first polarization state, whereas the second portion thereof is optimized for laser light having a second polarization state. The dual-fringe contrast scanning disc construction of the present invention provides for improved laser scanning efficiency during scanning operation, and improved laser light collection efficiency during laser light collection/detection operation within the system.
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