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    • 69. 发明授权
    • Vehicle head lamp and method of forming a reflecting mirror therefor
    • 车头灯及其形成反射镜的方法
    • US06419381B2
    • 2002-07-16
    • US09732702
    • 2000-12-11
    • Naohi NinoShinji KagiyamaTakeshi Arai
    • Naohi NinoShinji KagiyamaTakeshi Arai
    • F21V700
    • F21V7/04F21S41/334
    • A reflecting mirror, for a vehicle headlamp, which provides a sufficient amount of light near a slant cutoff line in downward-beam light distribution, thereby improving visibility in a long-distance region and a medium-distance region. The reflecting mirror has at least a first reflecting area and a second reflecting area. For a first reflecting area (10B—close to a horizontal reference face (x-y plane) when a reflecting face (10) is viewed from an optical axis direction—a reference curve is set in a slant reference face inclined to the horizontal reference face at an angle equal to an angle (&thgr;col) of a slant cutoff line with a horizontal line. For a second reflecting area (10D, 10E)—positioned above or below the first reflecting area (10B) with respect to the horizontal reference face—a reference curve is set in a slant reference face inclined to the horizontal reference face at a second angle larger than 0° and smaller than the angle of the slant cutoff line with the horizontal line. Parabolas are then associated with planes orthogonal to the slant reference face, thereby forming a curved surface.
    • 一种用于车辆前照灯的反射镜,其在向下的光束分布中在倾斜截止线附近提供足够量的光,从而提高长距离区域和中等距离区域的可视性。 反射镜至少具有第一反射区域和第二反射区域。 对于从光轴方向观察反射面(10)时的第一反射区域(10B-靠近水平参考面(xy平面)),将参考曲线设置在与水平基准面倾斜的倾斜基准面中 对于相对于水平参考面a而位于第一反射区域(10B)的上方或下方的第二反射区域(10D,10E)的角度等于具有水平线的倾斜截止线的角度(等级) 将参考曲线设置在倾斜参考面上,该倾斜参考面以大于0°并且小于具有水平线的倾斜截止线的角度的第二角度倾斜于水平参考面,然后将抛物线与垂直于倾斜参考面的平面相关联 从而形成弯曲表面。
    • 70. 发明授权
    • Optical recording medium and optical recording apparatus
    • 光记录介质和光记录装置
    • US06406771B1
    • 2002-06-18
    • US09692458
    • 2000-10-20
    • Hideo NakakukiTakeshi AraiToshihisa Nonaka
    • Hideo NakakukiTakeshi AraiToshihisa Nonaka
    • B32B302
    • G11B7/006G11B7/00454G11B7/007G11B7/24G11B7/24085G11B7/243G11B7/2534G11B7/2585G11B2007/2431G11B2007/24312G11B2007/24314G11B2007/24316G11B2007/25706G11B2007/25708G11B2007/25711G11B2007/25713G11B2007/25715Y10T428/21
    • The object of this invention is to provide a rewritable phase change type optical recording medium and an optical recording apparatus that are good in erasure characteristics and small in jitter even in high linear velocity high density recording, are unlikely to cause cross erasure even in the use of a substrate with a narrow track width, are unlikely to be deteriorated in signal quality even after repeated irradiation with a laser beam, and are good also in storage durability. The object of this invention can be achieved by a phase change type optical recording medium, characterized in that at least a first dielectric layer, a first boundary layer, a recording layer, a second boundary layer, an absorption correction layer and a reflection layer are provided in this order on a substrate, that the recording layer has a specific composition, that the first and second boundary layers are respectively mainly composed of at least one selected from carbon, carbides, oxides and nitrides, and that the absorption correction layer is 1.0 to 4.0 in refractive index and 0.5 to 3.0 in attenuation coefficient.
    • 本发明的目的是提供即使在高线速度高密度记录中也具有良好的擦除特性和抖动小的可重写相变型光学记录介质和光学记录装置,即使在使用中也不会引起交叉擦除 具有窄轨道宽度的基板,即使在用激光束重复照射之后也不可能劣化信号质量,并且也具有良好的储存耐久性。本发明的目的可以通过相变型光学记录介质 其特征在于,至少第一介电层,第一边界层,记录层,第二边界层,吸收校正层和反射层依次设置在基板上,记录层具有特定的组成 第一和第二边界层分别主要由选自碳,碳化物,氧化物和氮化物中的至少一种构成 吸收校正层的折射率为1.0〜4.0,衰减系数为0.5〜3.0。