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    • 31. 发明授权
    • Optical head for optical recorder/reproducer
    • 光学记录器/再现器用光头
    • US07889622B2
    • 2011-02-15
    • US11597996
    • 2005-05-31
    • Hidenori WadaSadao MizunoYoshiaki KommaKeiichi Matsuzaki
    • Hidenori WadaSadao MizunoYoshiaki KommaKeiichi Matsuzaki
    • G11B7/00
    • G11B7/12G11B7/1356
    • An optical head for recording or reproducing a signal on or from an optical recording medium including a light source, an objective lens for condensing light emitted from the light source to the optical recording medium, and a light-separating device arranged between the light source and the objective lens in order to separate the light reflected from the optical recording medium from the light emitted from the light source. The light-separating device includes a first glass, a multilayer film formed on the first glass, and an adhesive layer arranged on the multilayer film in order to bond a second glass onto the multilayer film. The majority of the light emitted from the light source enters into the light-separating device through the first glass and is reflected by the multilayer film.
    • 一种用于在包括光源的光记录介质上或从光记录介质上记录或再现信号的光学头,用于将从光源发射的光聚焦到光记录介质的物镜,以及布置在光源和 物镜,以将从光记录介质反射的光与从光源发射的光分离。 光分离装置包括第一玻璃,形成在第一玻璃上的多层膜和布置在多层膜上的粘合层,以将第二玻璃粘合到多层膜上。 从光源发射的大部分光通过第一玻璃进入分光装置,并被多层膜反射。
    • 32. 发明授权
    • Optical head for optical recorder/reproducer
    • 光学记录器/再现器用光头
    • US08184522B2
    • 2012-05-22
    • US12983427
    • 2011-01-03
    • Hidenori WadaSadao MizunoYoshiaki KommaKeiichi Matsuzaki
    • Hidenori WadaSadao MizunoYoshiaki KommaKeiichi Matsuzaki
    • G11B7/00
    • G11B7/12G11B7/1356
    • An optical head for recording or reproducing a signal on or from an optical recording medium including a light source, an objective lens for condensing light emitted from the light source to the optical recording medium, and a light-separating device arranged between the light source and the objective lens in order to separate the light reflected from the optical recording medium from the light emitted from the light source. The light-separating device includes a first glass, a multilayer film formed on the first glass, and an adhesive layer arranged on the multilayer film in order to bond a second glass onto the multilayer film. The majority of the light emitted from the light source enters into the light-separating device through the first glass and is reflected by the multilayer film.
    • 一种用于在包括光源的光记录介质上或从光记录介质上记录或再现信号的光学头,用于将从光源发射的光聚焦到光记录介质的物镜,以及布置在光源和 物镜,以将从光记录介质反射的光与从光源发射的光分离。 光分离装置包括第一玻璃,形成在第一玻璃上的多层膜和布置在多层膜上的粘合层,以将第二玻璃粘合到多层膜上。 从光源发射的大部分光通过第一玻璃进入分光装置,并被多层膜反射。
    • 35. 发明申请
    • OPTICAL PICKUP, OPTICAL DISK DRIVE DEVICE, OPTICAL INFORMATION RECORDING DEVICE, AND OPTICAL INFORMATION REPRODUCTION DEVICE
    • 光学拾取,光盘驱动器件,光学信息记录器件和光学信息生成器件
    • US20120294133A1
    • 2012-11-22
    • US13521549
    • 2011-01-12
    • Keiichi MatsuzakiKousei Sano
    • Keiichi MatsuzakiKousei Sano
    • G11B7/1372G11B27/36G11B19/20G11B7/1395
    • G11B7/0908G11B7/1374G11B7/1387G11B2007/0013G11B2007/13727
    • An optical pickup, an optical disk drive device, an optical information recording device, and an optical information reproduction device in which a reproduction signal, a focus error signal, and a gap error signal can be detected with high accuracy when information is recorded/reproduced on/from an optical information medium having a plurality of information recording layers. The optical pickup includes a focusing lens group (7) that includes a solid immersion lens (8) and focuses the light; a first detection lens (11) that focuses the reflected light from an optical information medium (9) on a first detector (12), and a second detection lens (13) that focuses the reflected light from the flat surface portion of the solid immersion lens (8) on a second detector (14). The optical magnification ratio M of the first optical system including the focusing lens group (7) and the first detection lens (11) and the optical magnification ratio m of the second optical system including the focusing lens group (7) and the second detection lens (13) satisfy the condition M>m.
    • 光信号,光盘驱动装置,光信息记录装置和光信息再现装置,其中当信息被记录/再现时可以高精度地检测再现信号,聚焦误差信号和间隙误差信号 具有多个信息记录层的光信息介质。 光拾取器包括:聚焦透镜组(7),其包括固体浸没透镜(8)并对光进行聚焦; 将来自光信息介质(9)的反射光聚焦在第一检测器(12)上的第一检测透镜(11)和聚焦来自固体浸渍的平面部分的反射光的第二检测透镜(13) 透镜(8)在第二检测器(14)上。 包括聚焦透镜组(7)和第一检测透镜(11)的第一光学系统和包括聚焦透镜组(7)和第二检测透镜的第二光学系统的光学倍率m的光学倍率M (13)满足条件M> m。
    • 37. 发明申请
    • Beam shaping optical device, optical head, and optical information medium drive device
    • 光束成形光学装置,光头,光信息媒体驱动装置
    • US20060114580A1
    • 2006-06-01
    • US10542361
    • 2004-07-06
    • Eishin MoriKeiichi MatsuzakiHidenori WadaHideki Hayashi
    • Eishin MoriKeiichi MatsuzakiHidenori WadaHideki Hayashi
    • G02B7/02
    • G02B7/028G02B19/0014G02B19/0052G11B7/1359G11B7/1376G11B7/13925G11B7/1398G11B2007/13727
    • An object of the present invention is to suppress the deterioration of a collimation quality resulting from a temperature change. A lens surface of a collimating lens closer to a light source is in contact with a retracted surface at one end surface of a barrel. On a projecting surface at an outer side of the one end surface of the barrel, grooves are formed at a plurality of positions symmetric with respect to an optical axis. An adhesive depositing in the grooves are applied to the outer circumferential surface of the collimating lens to fix the collimating lens in the barrel. Since the grooves are formed to be shallower than the retracted surface, the adhesive does not intrude onto the retracted surface. The barrel is pressed against a wall surface formed in the inner circumferential surface of a barrel holder main portion and having a V-shaped cross section by a leaf spring, thereby being held at a specified position in the barrel holder main portion. An amount of change in distance from a reference surface to a held position of the collimating lens per unit temperature is set to conform to a sum of an amount of change in the movement of the light source from the reference position per unit temperature and an amount of change of the back focus of the collimating lens per unit temperature.
    • 本发明的目的是抑制由温度变化引起的准直质量的劣化。 靠近光源的准直透镜的透镜表面与筒的一个端面处的缩回表面接触。 在筒的一端面的外侧的突出面上形成有相对于光轴对称的多个位置的槽。 将沉积在凹槽中的粘合剂施加到准直透镜的外周表面以将准直透镜固定在镜筒中。 由于凹槽形成为比缩回表面浅,所以粘合剂不会侵入缩回的表面。 筒被压在形成于筒保持器主体部的内周面的壁面上,并且通过片簧具有V形截面,从而被保持在筒保持器主体部的规定位置。 将每单位温度的准直透镜的基准面到保持位置的距离的变化量设定为与光单元的移动量相对于每单位温度的基准位置的变化量与量 每单位温度的准直透镜的后焦点的变化。
    • 39. 发明申请
    • Optical pickup, optical disk drive, optical information recording/replaying device, and tilt adjusting method
    • 光学拾取器,光盘驱动器,光学信息记录/重放装置和倾斜调节方法
    • US20080089194A1
    • 2008-04-17
    • US11905599
    • 2007-10-02
    • Keiichi MatsuzakiHidenori WadaYukihiro ChokyuHideki Aikoh
    • Keiichi MatsuzakiHidenori WadaYukihiro ChokyuHideki Aikoh
    • G11B7/00
    • G11B7/0945G11B7/0925G11B7/0956G11B7/1275G11B7/13927G11B19/127G11B2007/0006G11B2007/0013
    • There is provided a tilt correction processing method which can reliably detect the amount of tilt in a short time and adjust it, and then recording or replaying is started in a short time by employing the same. To perform recording or replaying to plural optical information media, an optical pickup having one or a plurality of light sources; one or a plurality of objective lenses for focusing light from the light source onto the optical information medium; an objective lens actuator which can control the objective lens in a focus direction and in a tracking direction and control the tilt of the objective lens; an optical information medium discriminating unit for discriminating a type of an optical disk when recording or replaying is performed to the optical disk; and an objective lens tilt setting unit for tilting the objective lens with respect to at least one of the optical information media by a predetermined amount by the objective lens actuator based on the discriminated result of the type of the optical information medium.
    • 提供了一种倾斜校正处理方法,其可以在短时间内可靠地检测倾斜量并进行调整,然后通过采用该倾斜校正处理方法在短时间内开始记录或重放。 为了对多个光信息介质执行记录或重放,具有一个或多个光源的光学拾取器; 一个或多个物镜,用于将来自光源的光聚焦到光信息介质上; 物镜致动器,其能够在聚焦方向和跟踪方向上控制物镜并控制物镜的倾斜; 当对光盘执行记录或重放时,用于鉴别光盘类型的光信息介质鉴别单元; 以及物镜倾斜设定单元,用于基于所述光信息介质的类型的识别结果,通过所述物镜致动器将所述物镜相对于所述光信息介质中的至少一个倾斜预定量。