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    • 6. 发明申请
    • OPTICAL PICKUP AND OPTICAL INFORMATION PROCESSING APPARATUS
    • 光学拾取和光学信息处理设备
    • US20090097381A1
    • 2009-04-16
    • US12297385
    • 2007-04-18
    • Yukiko HamanoHideaki Hirai
    • Yukiko HamanoHideaki Hirai
    • G11B7/00
    • G02B5/1814G02B5/1876G02B5/1895G11B7/1275G11B7/1353G11B7/13922
    • A disclosed optical pickup for performing at least recording, reproduction, or deletion of information on a first, second, third, and fourth optical recording media having different recording densities includes a first light source configured to emit first light having a first wavelength λ1 corresponding to the first and second optical recording media; a second light source configured to emit second light having a second wavelength λ2 corresponding to the third optical recording medium; a third light source configured to emit third light having a third wavelength λ3 corresponding to the fourth optical recording medium; an objective lens configured to focus the first light, the second light, and the third light on corresponding recording surfaces of the first, second, third, and fourth optical recording media; and an aberration correcting unit between the objective lens and the first, second, and third light sources.
    • 用于在具有不同记录密度的第一,第二,第三和第四光学记录介质上进行信息的至少记录,再现或删除的所公开的光学拾取器包括:第一光源,被配置为发射具有对应于 第一和第二光学记录介质; 第二光源,被配置为发射具有对应于所述第三光学记录介质的第二波长λ2的第二光; 第三光源,被配置为发射与第四光记录介质相对应的具有第三波长λ3的第三光; 配置为将第一光,第二光和第三​​光聚焦在第一,第二,第三和第四光学记录介质的相应记录表面上的物镜; 以及在物镜与第一,第二和第三光源之间的像差校正单元。
    • 8. 发明授权
    • Projector, image projection method, and head-up display device using the projector
    • 投影仪,图像投影方法和使用投影机的平视显示设备
    • US08648904B2
    • 2014-02-11
    • US12431244
    • 2009-04-28
    • Yukiko HamanoRyosuke KasaharaToshiyuki Kawasaki
    • Yukiko HamanoRyosuke KasaharaToshiyuki Kawasaki
    • H04N7/00
    • H04N9/3129G03B21/006H04N9/317
    • A projector projecting an image on an object by scanning the object with a light beam includes a light source; a divergence angle converter converting the divergence angle of the light beam; a light deflector deflecting the light beam in a light beam scanning direction and a direction perpendicular to the light beam scanning direction; alight deflector drive controller controlling the light deflector to form the focused light spots at the respective pixel positions of the object on the basis of positional data for the pixels; a light amount controller controlling light amount of the light beam on the basis of luminance data for the pixels; and an image processor correcting the luminance data on the basis of previously obtained deterioration data of the projected image and outputting the corrected luminance data to the light amount controller while outputting the positional data to the light deflector drive controller.
    • 通过用光束扫描物体来投影物体上的图像的投影仪包括光源; 变换所述光束的发散角的发散角转换器; 光偏转器使光束在光束扫描方向和垂直于光束扫描方向的方向上偏转; 控制所述光偏转器的导光板驱动控制器,基于所述像素的位置数据,在所述物体的各个像素位置处形成聚焦光点; 光量控制器,其基于所述像素的亮度数据来控制所述光束的光量; 以及图像处理器,基于预先获得的投影图像的劣化数据校正亮度数据,并将修正的亮度数据输出到光量控制器,同时将位置数据输出到导光板驱动控制器。
    • 9. 发明授权
    • Optical pickup and optical information processing device
    • 光学拾取和光学信息处理设备
    • US08259555B2
    • 2012-09-04
    • US12531193
    • 2008-04-15
    • Yukiko HamanoHideaki HiraiToshimichi NasukawaKazuhiro Umeki
    • Yukiko HamanoHideaki HiraiToshimichi NasukawaKazuhiro Umeki
    • G11B7/135G11B7/00
    • G11B7/1353G11B7/1367G11B7/13922G11B2007/0006
    • A disclosed optical pickup includes an aberration correction unit with a phase shifter surface. On the phase shifter surface, rectangular or staircase-like steps are formed in a concentric manner around an optical axial center, in certain regions where a light beam passes through. The steps have different heights in the optical axial direction. A light beam having a wavelength of 405 nm is directly transmitted through the steps so that a phase difference is applied for correcting spherical aberration that occurs on a first optical recording medium. A light beam that passes through an annular region without any steps is focused on a second optical recording medium. A light beam that passes through an outside region is focused by an object lens on the second optical recording medium, and is not focused on the first optical recording medium.
    • 所公开的光拾取器包括具有移相器表面的像差校正单元。 在移相器表面上,在光束通过的某些区域中,围绕光轴心同心地形成矩形或阶梯状台阶。 台阶在光轴方向具有不同的高度。 波长为405nm的光束直接透过该步骤,使得施加相位差来校正出现在第一光学记录介质上的球面像差。 通过没有任何步骤的环形区域的光束被聚焦在第二光学记录介质上。 通过外部区域的光束被物镜聚焦在第二光学记录介质上,并且不聚焦在第一光学记录介质上。