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    • 11. 发明授权
    • Scanning optical apparatus
    • 扫描光学仪器
    • US08681406B2
    • 2014-03-25
    • US13109415
    • 2011-05-17
    • Manabu Kato
    • Manabu Kato
    • G02B26/08
    • B41J2/473G02B13/0005G02B26/123G02B26/125
    • A scanning optical apparatus includes a light source, a deflecting element for deflecting a beam of light emitted from the light source, an optical device for causing the beam of light emitted from the light source to be imaged into a linear shape long in the main scanning direction on the deflecting surface of the deflecting element. The optical device is comprised of a first optical element and a second optical element, and a third optical element for causing the beam of light deflected by the deflecting element to be imaged into a spot-like shape on a surface to be scanned. The third optical element includes a single lens, the opposite lens surfaces of which both include a toric surface of an aspherical surface shape in the main scanning plane, the curvatures of the opposite lens surfaces in the sub scanning plane being continuously varied from the on-axis toward the off-axis in the effective portion of the lens.
    • 扫描光学装置包括光源,用于偏转从光源发射的光束的偏转元件,用于使从光源发射的光束在主扫描中长时间成像为直线形状的光学装置 在偏转元件的偏转表面上的方向。 光学装置包括第一光学元件和第二光学元件,以及第三光学元件,用于使由偏转元件偏转的光束在待扫描的表面上成像为点状。 第三光学元件包括单个透镜,其相对的透镜表面在主扫描平面中都包括非球面形状的复曲面,副扫描平面中的相对透镜表面的曲率从开放式 轴在透镜的有效部分中偏离轴。
    • 16. 发明授权
    • Optical scanning apparatus and method for adjusting the same
    • 光学扫描装置及其调整方法
    • US07916375B2
    • 2011-03-29
    • US12197156
    • 2008-08-22
    • Manabu Kato
    • Manabu Kato
    • G02B26/08
    • G02B26/128
    • An optical scanning apparatus includes a light source having a light-emitting point; a light-beam converting unit configured to convert a state of a light beam emitted from the light-emitting point of the light source into another state; a deflecting unit configured to deflect and scan the light beam emitted from the light-beam converting unit, the deflecting unit including a resonant deflecting element having a single deflecting surface that reciprocates around an axis; and an imaging optical unit configured to cause the light beam deflected and scanned by the deflecting surface of the deflecting unit to form an image on a surface to be scanned. The distance between the light-emitting point of the light source and the light-beam converting unit is adjusted based on information obtained by a detector that detects the light beam emitted from the light source and deflected by the deflecting surface of the deflecting unit.
    • 光学扫描装置包括具有发光点的光源; 光束转换单元,被配置为将从所述光源的发光点发射的光束的状态转换为另一状态; 偏转单元,被配置为偏转和扫描从光束转换单元发射的光束,所述偏转单元包括谐振偏转元件,所述谐振偏转元件具有绕轴线往复运动的单个偏转表面; 以及成像光学单元,被配置为使由偏转单元的偏转表面偏转和扫描的光束在待扫描的表面上形成图像。 光源和光束转换单元的发光点之间的距离是根据检测从光源发射并被偏转单元的偏转表面偏转的光束的检测器获得的信息进行调整的。
    • 17. 发明授权
    • Scanning optical apparatus
    • 扫描光学仪器
    • US07817321B2
    • 2010-10-19
    • US12696247
    • 2010-01-29
    • Manabu Kato
    • Manabu Kato
    • G02B26/08
    • B41J2/473G02B13/0005G02B26/123G02B26/125
    • A scanning optical apparatus includes a light source, a deflecting element for deflecting a beam of light emitted from the light source, an optical device for causing the beam of light emitted from the light source to be imaged into a linear shape long in the main scanning direction on the deflecting surface of the deflecting element. The optical device is comprised of a first optical element and a second optical element, and a third optical element for causing the beam of light deflected by the deflecting element to be imaged into a spot-like shape on a surface to be scanned. The third optical element includes a single lens, the opposite lens surfaces of which both include a toric surface of an aspherical surface shape in the main scanning plane, the curvatures of the opposite lens surfaces in the sub scanning plane being continuously varied from the on-axis toward the off-axis in the effective portion of the lens.
    • 扫描光学装置包括光源,用于偏转从光源发射的光束的偏转元件,用于使从光源发射的光束在主扫描中长时间成像为直线形状的光学装置 在偏转元件的偏转表面上的方向。 光学装置包括第一光学元件和第二光学元件,以及第三光学元件,用于使由偏转元件偏转的光束在待扫描的表面上成像为点状。 第三光学元件包括单个透镜,其相对的透镜表面在主扫描平面中都包括非球面形状的复曲面,副扫描平面中的相对透镜表面的曲率从开放式 轴在透镜的有效部分中偏离轴。
    • 20. 发明授权
    • Optical scanning apparatus and image-forming apparatus using the same
    • 光学扫描装置及使用其的图像形成装置
    • US07466333B2
    • 2008-12-16
    • US11536172
    • 2006-09-28
    • Manabu Kato
    • Manabu Kato
    • B41J2/435
    • G02B26/127G02B26/125H04N1/40056
    • An optical scanning apparatus includes a light source and a structure for performing light-power control for the light source, the structure including a light-power-detection optical unit that establishes an optically conjugate relationship between a deflecting surface of a deflecting unit and a light-receiving surface of a light-power detector in a main-scanning plane. Accordingly, the storage time of a light beam on the light-power-detection optical unit is increased and variation in the power of light emitted by the light source due to heat generated by the light source and environmental variation is accurately detected.
    • 光学扫描装置包括光源和用于对光源执行光功率控制的结构,该结构包括光功率检测光学单元,该光功率检测光学单元在偏转单元的偏转表面和光线之间建立光学共轭关系 在主扫描平面中的光功率检测器的接收表面。 因此,光束在光功率检测光学单元上的存储时间增加,并且由于光源产生的热量和环境变化而被光源发射的光的功率的变化被精确地检测。