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    • 65. 发明授权
    • Detection apparatus, detection method, and optically transparent member
    • 检测装置,检测方法和透光构件
    • US07830521B2
    • 2010-11-09
    • US11864711
    • 2007-09-28
    • Hiroaki YamamotoToshihito KimuraHitoshi ShimizuMasashi Hakamata
    • Hiroaki YamamotoToshihito KimuraHitoshi ShimizuMasashi Hakamata
    • G01N21/00
    • G01N21/553G01N2021/157
    • Provided are a detection apparatus, a detection method and an optically transparent member, which can detect a decrease in a precision. A convolution is performed by a convolution portion 80 contained in an image processing portion 38, to acquire the distribution information indicating the light intensity distribution of a light beam, which is totally reflected at the interface and which is incident at a plurality of angles to an dielectric block 52 so as to be totally reflected at the interface of the dielectric block 52. A spatial frequency resolution is performed on the light intensity distribution indicated by the distribution information acquired, by a detection precision evaluating portion 86 contained in the image processing portion 38, to thereby derive the light intensity distribution of each spatial frequency of the light beam. The precision is detected by comparing the light intensity distribution derived, with a threshold value predetermined for each spatial frequency.
    • 提供了能够检测精度降低的检测装置,检测方法和光学透明构件。 通过包含在图像处理部分38中的卷积部分80执行卷积,以获取指示在该界面处被全反射并以多个角度入射的光束的光强度分布的分布信息 介质块52,以便在介质块52的界面处被全反射。通过由图像处理部分38中包含的检测精度评估部分86对由所获取的分布信息指示的光强度分布执行空间频率分辨率 ,从而导出光束的每个空间频率的光强度分布。 通过将导出的光强度分布与针对每个空间频率预定的阈值进行比较来检测精度。
    • 66. 发明申请
    • OPTICAL PICKUP DEVICE
    • 光学拾取器件
    • US20100157778A1
    • 2010-06-24
    • US12090563
    • 2007-07-18
    • Naoto ShimadaHiroaki YamamotoNaoki NakanishiMasahiko NishimotoTakuya Okuda
    • Naoto ShimadaHiroaki YamamotoNaoki NakanishiMasahiko NishimotoTakuya Okuda
    • G11B7/135
    • G11B7/0903G11B7/1353
    • An optical pickup device includes a diffraction grating 12 for separating an emitted light beam into at least three light beams. The diffraction grating 12 is divided into three regions by dividing lines D1 and D2 extending in a first direction parallel to a tangent line of a track of an optical information recording medium. A second region 12B is divided into four sub-blocks by a dividing line D3 extending in the first direction and a dividing line D4 extending in a second direction that crosses the first direction. The sub-blocks located diagonally opposite to each other have a same phase, and the sub-blocks located adjacent to each other have a phase difference of approximately 180 degrees. The first region 12A has a phase difference of approximately 90 degrees from each sub-block of the second region 12B, and the first region 12A has a phase difference of approximately 180 degrees from the third region 12C.
    • 光学拾取装置包括用于将发射的光束分离成至少三个光束的衍射光栅12。 衍射光栅12通过沿与光信息记录介质的轨道的切线平行的第一方向延伸的线D1和D2分成三个区域。 第二区域12B通过沿第一方向延伸的分割线D3和沿与第一方向交叉的第二方向延伸的分割线D4被分成四个子块。 彼此对角地相对的子块具有相同的相位,并且彼此相邻的子块具有大约180度的相位差。 第一区域12A与第二区域12B的每个子块具有大约90度的相位差,并且第一区域12A与第三区域12C具有大约180度的相位差。
    • 68. 发明申请
    • PRESSURE REDUCING VALVE FOR GAS
    • 减压阀用于气体
    • US20090320935A1
    • 2009-12-31
    • US12524499
    • 2008-01-22
    • Hiroaki YamamotoYoji NakajimaYoshio SaitoYutaka Chiba
    • Hiroaki YamamotoYoji NakajimaYoshio SaitoYutaka Chiba
    • F16K31/12
    • F02M21/0239F02M21/0233G05D16/0663Y02T10/32Y10T137/6579Y10T137/6606Y10T137/7757Y10T137/7809Y10T137/7823Y10T137/7825
    • A pressure reducing valve for gas is provided in which a valve mechanism having opening in a central part a valve hole that communicates with a low pressure passage and a low pressure chamber and including a valve body that is capable of being seated on a valve seat facing a valve chamber communicating with a high pressure passage is housed within a body such that the valve body is connected to a pressure receiving member operating in response to pressure of the low pressure passage and the low pressure chamber, wherein the body (16) is formed by joining a plurality of body members (18, 19) having different strengths, the entirety of the high pressure passage (30, 64) being formed, among the plurality of body members (18, 19), within the body member (18) that has a high strength, and at least part of the low pressure passage (85, 86, 94, 119) and the low pressure chamber (83, 84, 116) being formed, among the plurality of body members (18, 19), within the body member (19) that has a low strength. This enables the cost to be reduced.
    • 提供了一种气体减压阀,其中在中心部分具有开口的阀机构,其与低压通道和低压室连通​​,并且包括阀体,该阀体能够坐在阀座面对 与高压通道连通的阀室容纳在主体内,使得阀体连接到响应于低压通道和低压室的压力而工作的受压部件,其中形成主体(16) 通过连接具有不同强度的多个主体部件(18,19),在主体部件(18)内形成有多个主体部件(18,19)中的高压通道(30,64)的整体, 具有高强度,并且在所述多个主体部件(18,19)中形成有所述低压通路(85,86,94,119)和所述低压室(83,84,116)的至少一部分, 在具有低的身体构件(19)内 力量。 这样可以降低成本。