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    • 1. 发明授权
    • Objective lens driving apparatus
    • 物镜驱动装置
    • US06278669B1
    • 2001-08-21
    • US09260352
    • 1999-03-02
    • Joji AnzaiAkihiro Yasuda
    • Joji AnzaiAkihiro Yasuda
    • G11B700
    • G11B7/0933G11B7/093G11B7/0932G11B7/0935
    • An objective lens driving apparatus includes an objective lens opposed to an optical disk, the objective lens having an optical axis in a vertical direction which is perpendicular to the optical disk, a holder for holding the objective lens; a supporting member for supporting the holder to be movable in at least the vertical direction and a radial direction of the optical disk; a focusing coil provided on the holder and wound around the vertical direction; and a magnetic field generation section for generating a magnetic flux crossing the focusing coil in a direction perpendicular to the vertical direction, the magnetic flux being generated to be substantially linear.
    • 物镜驱动装置包括与光盘相对的物镜,该物镜具有垂直于光盘的垂直方向的光轴,用于保持物镜的保持器; 支撑构件,其用于支撑所述保持器,以能够至少沿所述光盘的垂直方向和径向方向移动; 设置在保持器上并围绕垂直方向缠绕的聚焦线圈; 以及磁场产生部分,用于在垂直于垂直方向的方向上产生与聚焦线圈交叉的磁通量,所产生的磁通量基本上是线性的。
    • 4. 发明申请
    • Fixing device and temperature control method
    • 固定装置和温度控制方法
    • US20070019063A1
    • 2007-01-25
    • US10565270
    • 2004-10-05
    • Akihiro YasudaNoriyuki TajimaHideki TatematsuKoichi BabaShigemitsu Tani
    • Akihiro YasudaNoriyuki TajimaHideki TatematsuKoichi BabaShigemitsu Tani
    • B41J2/375
    • G03G15/2042G03G2215/2016G03G2215/2032
    • As a cooling mechanism that cools the entire paper passage area of a heat-producing belt, a rotational drive method of the heat-producing belt is employed and the heat-producing belt is cooled by rotational cooling by being made to idle when paper is not being passed through. An excitation apparatus and the above-described cooling mechanism are controlled so that recording paper is not passed through and the heat-producing belt is cooled while being heated over the heating width when the small-size recording paper is passed through until the temperature detected by a paper non-passage area temperature detecting sensor is at or below a predetermined fixing temperature. This fixing apparatus enables an excessive rise in temperature of a paper non-passage area of the heat-producing belt to be efficiently eliminated, and the temperature distribution of heat-producing belt to be made uniform in a short time.
    • 作为冷却发热带的整个纸张通过区域的冷却机构,采用发热带的旋转驱动方法,并且当不是纸张时通过旋转冷却而使空调冷却发热带 正在通过 控制激励装置和上述冷却机构,使得当小尺寸记录纸通过时,记录纸不被通过并且在加热到加热宽度之前冷却发热带,直到由 纸张非通过区域温度检测传感器处于或低于预定的定影温度。 该定影装置能够有效地消除发热带的纸非通过区域的温度过度上升,并且在短时间内使发热带的温度分布均匀。
    • 5. 发明申请
    • Fixing device
    • 固定装置
    • US20070014599A1
    • 2007-01-18
    • US10575353
    • 2004-10-06
    • Akihiro YasudaMasaru ImaiNoriyuki TajimaKeisuke FujimotoHideaki Yamada
    • Akihiro YasudaMasaru ImaiNoriyuki TajimaKeisuke FujimotoHideaki Yamada
    • G03G15/20
    • G03G15/2042G03G15/2053H05B6/145
    • A fixing apparatus can prevent an excessive rise in temperature of a paper non-passage area due to diverted flow of magnetic flux from a paper passage area of a heat-producing element to a paper non-passage area thereof has a small configuration, A center core is rotated by a rotation section, bringing cutaway parts to a magnetic path masking position, and the degree of magnetic coupling between the center core and a heat-producing roller is weakened, suppressing an excessive rise in temperature of paper non-passage areas of the heat-producing roller. With this fixing apparatus, switching of the intensity of magnetic coupling between the center core and heat-producing roller can be performed simply by rotating the center core. Also, with this fixing apparatus, it is not necessary for magnetism suppressing elements to be provided as separate members, enabling the configuration to be made simpler and less expensive.
    • 定影装置可以防止由于从发热元件的纸通道区域到其非通路区域的磁通量的转向流动而导致纸张非通过区域的温度过度上升,具有小的构造A中心 芯部通过旋转部旋转,将切割部分带到磁路遮蔽位置,并且中心芯和发热辊之间的磁耦合程度减弱,抑制纸张非通过区域的温度过度上升 发热辊。 利用这种定影装置,可以简单地通过旋转中心芯来执行中心芯和发热辊之间的磁耦合强度的切换。 此外,利用该定影装置,不需要将磁抑制元件设置为单独的构件,使得能够使构造更简单且更便宜。
    • 6. 发明申请
    • CONTACT LENS CASE
    • 联系我们
    • US20150150346A1
    • 2015-06-04
    • US14409660
    • 2012-07-09
    • Akihiro YasudaOsamu Mori
    • Akihiro YasudaOsamu Mori
    • A45C11/00A45C13/02
    • A45C11/005A45C13/02G02C11/00
    • A contact lens case including a container main body provided with a housing recess for storing a contact lens and a liquid agent, and a lid that is connected to the container main body via a hinge in a freely openable and closable manner. A lens holding body is displaceably housed in the housing recess, and by connecting the lid and the lens holding body via a connecting member, the lens holding body can undergo rising and falling displacement following open and close action of the lid around the hinge. A displacement restricting member is provided that restricts a direction of the rising and falling displacement of the lens holding body to the vertical direction that coincides with a depth direction of the housing recess.
    • 一种隐形眼镜盒,包括:容器主体,其设置有用于存放隐形眼镜和液体剂的容纳凹部;以及通过铰链以可自由打开和关闭的方式连接到容器主体的盖。 透镜保持体可移动地容纳在容纳凹部中,并且通过连接构件连接盖和透镜保持体,透镜保持体可以在盖围绕铰链的打开和关闭动作后经受上升和下降位移。 提供一种位移限制构件,其限制透镜保持体的上升和下降位移方向与容纳凹部的深度方向一致的垂直方向。
    • 7. 发明申请
    • Optical Pickup Device and Optical Disk Apparatus Using the Same
    • 光拾取装置及其使用的光盘装置
    • US20100188962A1
    • 2010-07-29
    • US12693676
    • 2010-01-26
    • Akihiro Yasuda
    • Akihiro Yasuda
    • G11B7/135
    • G11B7/13922G11B7/1367G11B2007/0006
    • An optical pickup device includes a light source, a movable condensing lens, a rising prism or a rising mirror, an objective lens, and a phase plate. The light source emits laser light, and the movable condensing lens converts the laser light into converging light or diverging light. The rising prism or the rising mirror converts an optical axis of laser light passing through the condensing lens into a substantially vertical direction. The objective lens condenses the laser light, of which the optical axis is converted by the rising prism or the rising mirror, to an optical disk. The phase plate is provided between the condensing lens and the objective lens, and includes stepped portions that are formed at portions facing each other and have different thicknesses. The phase plate corrects astigmatism, which is generated by the rising prism or the rising mirror, by making a part of laser light having a size larger than a predetermined size pass through the stepped portions of the phase plate.According to the above-mentioned structure, it may be possible to correct the astigmatism of not only laser light directed to the optical disk but also light reflected from the optical disk of which the polarization direction is different by about 90° from that of the laser light directed to the optical disk, without requiring power or a specific system when astigmatism generated by the rising prism, the rising mirror, or the like is corrected.
    • 光拾取装置包括光源,可移动聚光透镜,上升棱镜或上升反射镜,物镜和相位板。 光源发射激光,可移动聚光透镜将激光转换成会聚光或发散光。 上升棱镜或上升反射镜将通过聚光透镜的激光的光轴转换成基本垂直的方向。 物镜将光轴由上升棱镜或上升反射镜转换成光盘。 相位板设置在聚光透镜和物镜之间,并且包括形成在彼此面对并且具有不同厚度的部分的阶梯部分。 相位板通过使具有大于预定尺寸的尺寸的激光的一部分通过相位板的阶梯部分来校正由上升棱镜或上升反射镜产生的象散。 根据上述结构,可以校正指向光盘的激光的像散,而且可以校正从偏振方向与激光的偏振方向相差大约90°的光盘反射的光 校正由上升棱镜,上升反射镜等产生的散光而不需要电力或特定系统的光的光。
    • 9. 发明授权
    • Optical element, optical head, optical information recording and reproduction apparatus, computer, image recording device, image reproduction device, server and car navigation system
    • 光学元件,光学头,光学信息记录和再现装置,计算机,图像记录装置,图像再现装置,服务器和汽车导航系统
    • US07693026B2
    • 2010-04-06
    • US12271161
    • 2008-11-14
    • Kousei SanoYoshiaki KommaHidenori WadaAkihiro Yasuda
    • Kousei SanoYoshiaki KommaHidenori WadaAkihiro Yasuda
    • G11B7/00
    • G11B7/1275G02B5/32G11B7/1353G11B2007/0006
    • The present invention provides a first light source (21) that emits light of a first wavelength, that at least either records onto or reproduces information from an information recording medium (30), a light source (22) that emits light of a second wavelength that records onto or reproduces information from an information recording medium (33), a light source (23) that emits light of a third wavelength that records onto or reproduces information from an information recording medium (23), focusing means, an optical element (28) that passes light of the first wavelength and diffracts light of the second and third wavelengths, wherein the optical element (28) is an optical element in which grooves are formed in a substrate, wherein the expression: 380 nm≦(n−1)×d≦420 nm is satisfied, where n is a refractive index of the substrate at a wavelength of 400 nm, and d (nm) is a depth per step of the grooves, and wherein the grooves are formed in two steps of depth d and depth 2d.
    • 本发明提供了一种发射第一波长的光的第一光源(21),其至少从信息记录介质(30)记录信息或从信息记录介质再现信息,发射第二波长的光的光源(22) 从信息记录介质(33)记录信息或从信息记录介质(23)记录第三波长的光的光源(23),从信息记录介质(23),聚焦装置,光学元件( 28),其传播第一波长的光并衍射第二和第三波长的光,其中光学元件(28)是其中在衬底中形成沟槽的光学元件,其中表达:380nm和nlE;(n-1) )×d≦̸ 420nm,其中n是衬底在400nm波长处的折射率,d(nm)是每个步长的槽的深度,并且其中沟槽形成为深度的两个步骤 d和深度2d。