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    • 1. 发明授权
    • Optical beam scanning system for compact image display or image acquisition
    • 光束扫描系统,用于紧凑型图像显示或图像采集
    • US07068878B2
    • 2006-06-27
    • US10763896
    • 2004-01-23
    • Janet Crossman-BosworthEric J. SeibelMark E. Fauver
    • Janet Crossman-BosworthEric J. SeibelMark E. Fauver
    • G02B6/26
    • G02B26/0875A61B2090/3614G02B6/25G02B6/2552G02B6/262G02B6/32G02B26/101G02B2006/0098
    • An optical fiber having a reduced cross-sectional region adjacent to its distal end, which is fused to an optical component, is vibrated, rotating the optical component to scan a region. The optical component has a back focal point that is substantially coincident with an effective light source of the optical fiber, so that the light emanating from the optical component is either substantially collimated or convergent. The optical component is either a ball lens, a drum lens, a graded index lens, or a diffractive optical element. A vibratory node is also made substantially coincident with the back focal point of the optical component, producing a compact scanner with extensive field of view. The optical fiber is preferably reduced in cross-sectional area after the optical component is fused to the optical fiber, by immersion in a three-layer etch apparatus having an etch-stop layer, an etch layer, and a solvent layer.
    • 具有与其远端相邻的与光学部件熔合的横截面减小的光纤振动,旋转光学部件以扫描区域。 光学部件具有与光纤的有效光源基本一致的后焦点,使得从光学部件发出的光基本上准直或收敛。 光学部件是球形透镜,鼓形透镜,渐变折射率透镜或衍射光学元件。 振动节点也基本上与光学部件的后焦点重合,产生具有广泛视场的紧凑型扫描仪。 光学元件通过浸入具有蚀刻停止层,蚀刻层和溶剂层的三层蚀刻装置中而在光学元件熔合到光纤之后,优选地减小横截面积。