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    • 2. 发明授权
    • Scanning optical device
    • 扫描光学设备
    • US6064504A
    • 2000-05-16
    • US791977
    • 1997-01-31
    • Tadashi MinakuchiMasahiro OonoMitsunori IimaHiroshi Kanazawa
    • Tadashi MinakuchiMasahiro OonoMitsunori IimaHiroshi Kanazawa
    • B41J2/47G02B26/12G02B26/08
    • B41J2/471G02B26/123G02B26/124
    • A scanning optical device includes a light source that emits a light beam; a deflector for deflecting and scanning the light beam from the light source; a scanning lens for converging the deflected light beam onto an image surface; and a mechanism for adjusting the relative position of at least one lens element of the scanning lens with respect to other lens elements of the scanning lens in an auxiliary scanning direction. Preferably, the adjustable lens element of the scanning lens be provided with an anamorphic surface having relatively larger power in the auxiliary scanning direction than in the main scanning direction. Alternatively, the above-mentioned at least one lens element may have the largest absolute value of refractive power of the lenses in the scanning lens. Further alternatively, the above-mentioned at least one lens element may be provided with a surface having the smallest absolute value of radius of curvature of all surfaces in the scanning lens.
    • 扫描光学装置包括发射光束的光源; 偏转器,用于偏转和扫描来自光源的光束; 用于将偏转的光束会聚到图像表面上的扫描透镜; 以及用于调整扫描透镜的至少一个透镜元件相对于扫描透镜的其它透镜元件在辅助扫描方向上的相对位置的机构。 优选地,扫描透镜的可调节透镜元件设置有在辅助扫描方向上比在主扫描方向上具有相对较大功率的变形表面。 或者,上述至少一个透镜元件可以具有扫描透镜中的透镜的屈光力的绝对值的最大值。 此外,上述至少一个透镜元件可以设置有扫描透镜中所有表面的曲率半径绝对值最小的表面。
    • 10. 发明授权
    • Appratus for measuring the profile of an aspherical surface
    • 用于测量非球面曲面的设置
    • US4886362A
    • 1989-12-12
    • US84766
    • 1987-08-13
    • Masahiro Oono
    • Masahiro Oono
    • G01B11/24G01B9/02G01B11/245G01B11/255
    • G01B9/02063G01B11/255G01B9/02003G01B9/02068G01B2290/45
    • An apparatus for measuring the profile of an aspherical surface in which two coherent optical beams of closely spaced frequencies are produced. One of the beams is reflected from either an optical probe or a mechanical feeler probe coupled with the turning aspherical surface. The reflected and non-reflected beams interfere and the resultant beat signal is detected and its frequency change measured to determine the differing optical path length to the turning aspherical surface. The mechanical probe has a feeler biased into contact with the aspherical surface and a reflector fixed thereto for reflecting the one beam. The optical probe has an auto-focusing objective lens for focusing the one beam to be reflected from the turning asperical surface.
    • 一种用于测量非球面表面的轮廓的装置,其中产生两个紧密间隔的频率的两个相干光束。 光束中的一个从与旋转非球面连接的光学探针或机械探针探针反射。 反射的和未反射的光束被干涉并且检测到合成的拍频信号,并测量其频率变化以确定与转动非球面的不同的光程长度。 机械探针具有偏压与非球面接触的探针和固定于其上的反射器的反射器。 光学探头具有自动聚焦物镜,用于将一束光束从转动的曲面上反射。