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    • 91. 发明公开
    • DISPLAY DEVICE
    • 显示设备
    • EP2642330A1
    • 2013-09-25
    • EP11841652.8
    • 2011-09-15
    • Nippon Seiki Co., Ltd.
    • SEKIYA,ShunHADA, MakotoNAKAHARA, Tsuyoshi
    • G02B26/10B60K35/00G02B27/01
    • G09G3/34B60K35/00B60K2350/2047B60K2350/2052G02B26/101G02B27/01H04N9/3194
    • A display device capable of obtaining stable light output even in a state of low brightness and capable of displaying desired display colors is provided. An output control means (80) causes image-forming light to be emitted from a laser source (10) on the basis of image information when the scanning position of an RGB laser beam according to a scanning means is within a display range (20), and causes detection light to be emitted from the laser source (10) when the scanning position is outside the display range. In addition, the output control means (80): changes the drive current of the laser source (10) according to a first current value that is less than a threshold current value, and second and third current values that are greater than or equal to the threshold value, when the scanning position according to the scanning means (20) is outside the display range; and drives the laser source (10) according to the drive current obtained by calculating the current-light output characteristics on the basis of the light intensity detected by a laser beam detection unit (40).
    • 提供一种即使在低亮度状态下也能够获得稳定的光输出并且能够显示期望的显示颜色的显示装置。 当根据扫描装置的RGB激光束的扫描位置在显示范围(20)内时,输出控制装置(80)基于图像信息使成像光从激光源(10)发射, 并且当扫描位置在显示范围之外时使检测光从激光源(10)发射。 此外,输出控制装置(80):根据小于阈值电流值的第一电流值和大于或等于第二电流值的第二电流值和第三电流值来改变激光源(10)的驱动电流 当根据扫描装置(20)的扫描位置在显示范围之外时,该阈值; 并且根据通过基于由激光束检测单元(40)检测到的光强度来计算当前光输出特性而获得的驱动电流来驱动激光源(10)。
    • 92. 发明公开
    • Optical scanning device and image forming apparatus using same
    • 光学扫描装置及使用其的图像形成装置
    • EP2634000A1
    • 2013-09-04
    • EP13000947.5
    • 2013-02-25
    • Kyocera Document Solutions Inc.
    • Yoshida, ShingoOkamura, HidekiNakano, Issei
    • B41J2/47G02B13/00G02B26/12
    • G02B26/10B41J2/473G02B13/0005G02B26/101G02B26/125G03G15/04036
    • An optical scanning device includes a light source, a deflector, an incident optical system and one scanning lens. The scanning lens includes a first face and a second face. In a main scanning direction cross section of the scanning lens, when a scanning range is separated, with on axis as a reference, into an image height region of a first direction and an image height region of a second direction that is opposite to the first direction, the incident optical system is disposed on a side of the image height region of the first direction. Curvature of the first face in a sub scanning direction cross section decreases from on axis toward off axis in the main scanning direction, and curvature of the second face in the sub scanning direction cross section increases from off axis of the first direction toward the second direction in the main scanning direction.
    • 一种光学扫描装置包括光源,偏转器,入射光学系统和一个扫描透镜。 扫描透镜包括第一面和第二面。 在扫描透镜的主扫描方向截面中,当以轴为基准将扫描范围分离为第一方向的图像高度区域和与第一方向相反的第二方向的图像高度区域时 入射光学系统被布置在第一方向的图像高度区域的一侧上。 副扫描方向截面中的第一面的曲率在主扫描方向上从轴向离轴减小,并且副扫描方向截面中的第二面的曲率从第一方向的离轴朝向第二方向 在主扫描方向上。