Optical fiber coupling system
    32.
    发明授权
    Optical fiber coupling system 失效
    光纤耦合系统

    公开(公告)号:US06934443B2

    公开(公告)日:2005-08-23

    申请号:US10278820

    申请日:2002-10-24

    CPC分类号: G02B6/4207 G02B6/4203

    摘要: When an end surface of a silica optical fiber and another optical element are to be optically coupled to each other, according to the invention, the optical fiber is treated so that a core of the optical fiber is protruded from a clad of the optical fiber at an end portion of the optical fiber to form a protrusion shaped like a truncated cone or like a cone. On this occasion, the refractive index of the surrounding medium is selected to be in a range of from 1.35 to 1.60. Preferably, the area of the top surface of the truncated cone is not larger than ⅕ as large as the area of the bottom surface of the truncated cone. Further preferably, the side surface of the core protrusion is inclined at an angle of 30 degrees to 75 degrees, both inclusively, with respect to the central axis of the core.

    摘要翻译: 当二氧化硅光纤和另一个光学元件的端面彼此光学耦合时,根据本发明,光纤被处理使得光纤的芯从光纤的包层突出 光纤的端部,以形成像圆锥体或类似锥体的突起。 在这种情况下,周围介质的折射率选择在1.35〜1.60的范围内。 优选地,截头锥体的顶面的面积不大于截头圆锥体的底面的面积的1/5。 进一步优选地,芯突起的侧表面相对于芯的中心轴线包含30度至75度的角度倾斜。

    Optical demultiplexer
    35.
    发明授权
    Optical demultiplexer 失效
    光解复用器

    公开(公告)号:US06888681B2

    公开(公告)日:2005-05-03

    申请号:US10353981

    申请日:2003-01-30

    申请人: Kenichi Nakama

    发明人: Kenichi Nakama

    摘要: Incident light rays (11) given from an optical fiber (10) are converted into parallel light rays (12) by a collimator lens (2). The parallel light rays (12) are demultiplexed in accordance with wavelengths by a diffraction grating (3). After the demultiplexed light rays arrive at the collimator lens (2) again, the light rays are converted into convergent light rays (14) and converged into a photo acceptance element array. Because the converging/image-forming positions of respective channels are arranged at irregular pitches in accordance with wavelengths, signals of the channels can be taken out accurately and efficiently from photo acceptance elements respectively when the photo acceptance elements are provided in the converging/image-forming positions respectively.

    摘要翻译: 由光纤(10)给出的入射光线(11)由准直透镜(2)转换为平行光线(12)。 平行光线(12)根据衍射光栅(3)的波长进行解复用。 在解复用的光线再次到达准直透镜(2)之后,光线被转换成会聚光线(14)并会聚在光接收元件阵列中。 由于各个通道的会聚/成像位置根据波长以不规则的间距排列,所以当在会聚/图像形成装置中设置光接收元件时,分别可以从照片接收元件精确而有效地取出通道的信号, 形成位置。

    Semi-transmitting mirror-possessing substrate, and semi-transmitting type liquid crystal display apparatus
    36.
    发明申请
    Semi-transmitting mirror-possessing substrate, and semi-transmitting type liquid crystal display apparatus 审中-公开
    半透射反射镜基板和半透射型液晶显示装置

    公开(公告)号:US20050083460A1

    公开(公告)日:2005-04-21

    申请号:US10759398

    申请日:2004-01-16

    IPC分类号: G02B1/10 G02F1/1335

    CPC分类号: G02F1/133555 G02B5/0858

    摘要: There is provided a semi-transmitting mirror-possessing substrate that has high reflectivity while maintaining high transmissivity, whereby transmission display performance and reflection display performance can both be improved. The semi-transmitting mirror-possessing substrate 1 has a transparent glass substrate 2 made of a soda lime silicate glass, a foundation film 3 made of silicon oxide (SiOx) formed on the glass substrate 2, a semi-transmitting reflective film 4 made of aluminum (Al) formed on the foundation film 3, and a protective film 5 made of silicon dioxide (SiO2) formed on the semi-transmitting reflective film 4. The film thickness of the SiOx used as the foundation film 3 is in a range of 0 to 8 nm. Moreover, the chemical composition ratio x of oxygen (O) to silicon (Si) in the SiOx is in a range of 1.5 to 2.0.

    摘要翻译: 提供具有高反射率的半透射反射镜的基板,同时保持高的透射率,从而可以提高透射显示性能和反射显示性能。 半透射反射镜基板1具有由钠钙硅酸盐玻璃制成的透明玻璃基板2,在玻璃基板2上形成的由氧化硅(SiO x)构成的基础膜3, 形成在基底膜3上的由铝(Al)制成的半透射反射膜4和形成在半透射反射膜4上的由二氧化硅(SiO 2)构成的保护膜5。 用作基础膜3的SiO x膜的膜厚度在0至8nm的范围内。 此外,SiO 2中的氧(O)与硅(Si)的化学组成比x在1.5〜2.0的范围内。

    Information recording medium and method of manufacturing glass substrate for the information recording medium, and glass substrate for the information recording medium, manufactured using the method
    37.
    发明申请
    Information recording medium and method of manufacturing glass substrate for the information recording medium, and glass substrate for the information recording medium, manufactured using the method 审中-公开
    用于信息记录介质的信息记录介质和制造玻璃基板的方法以及使用该方法制造的用于信息记录介质的玻璃基板

    公开(公告)号:US20050074635A1

    公开(公告)日:2005-04-07

    申请号:US10392248

    申请日:2003-03-19

    IPC分类号: G11B5/64 G11B5/84 G11B5/66

    摘要: There is provided an information recording medium and a method of manufacturing a glass substrate for information recording media as well as a glass substrate manufactured using the method, according to which the take-off height (TOH) of a HDD for example can be made low. The surface shape in a predetermined region of an information recording medium is measured using an optical interferometer or an atomic force microscope. The measured surface shaped is subjected to line analysis along the circumferential direction of the information recording medium. A calculation is made of the product PSD×f of PSD corresponding to a predetermined wavelength ν and the reciprocal of the predetermined wavelength ν. The maximum value of the calculated PSD is controlled to not more than a predetermined value. As a result, the TOH can be made low by reducing waviness which hinders the magnetic head of a HDD or the like from stably flying.

    摘要翻译: 提供了一种信息记录介质和用于信息记录介质的玻璃基板的制造方法以及使用该方法制造的玻璃基板,根据该方法,例如可以使HDD的起飞高度(TOH)低 。 使用光学干涉仪或原子力显微镜测量信息记录介质的预定区域中的表面形状。 测量的表面形状沿着信息记录介质的圆周方向进行线分析。 对与预定波长nu对应的PSD的乘积PSDxf和预定波长nu的倒数进行计算。 将计算出的PSD的最大值控制在规定值以下。 结果,通过减少妨碍HDD等的磁头稳定地飞行的波纹,可以使TOH变低。

    Image transfer device having laminated lens array sheets
    38.
    发明授权
    Image transfer device having laminated lens array sheets 有权
    具有层叠透镜阵列片的图像转印装置

    公开(公告)号:US06856463B2

    公开(公告)日:2005-02-15

    申请号:US10208815

    申请日:2002-08-01

    申请人: Minoru Toyama

    发明人: Minoru Toyama

    IPC分类号: G02B3/00 G02B27/10

    CPC分类号: G02B3/0068

    摘要: An image transfer device having: a lens array laminate 14 forming an erecting unit magnification optical system, the lens array laminate including a plurality of lens array sheets 12 of the same specification each of which has convex-convex lens elements 10 arranged in a plurality of rows and which are substantially closely laminated in a direction of each lens optical axis. Typically, two to four lens array sheets of the same specification each of which has convex-convex lens elements each having are fractive index of not lower than 1.45 and arranged in 3 to 9 rows are closely laminated on each other or one another in a direction of each lens optical axis. Each of the lens array sheets is preferably formed so that the lens thickness is in a range of from about 4 mm to about 0.5 mm and the number of lens rows is in a range of from 4 to 6.

    摘要翻译: 一种图像传送装置,具有:形成竖立单位倍率光学系统的透镜阵列层叠体14,所述透镜阵列层叠体具有多个相同规格的透镜阵列片12,每个具有凸状透镜要素10, 并且其在每个透镜光轴的方向上基本上紧密地层叠。 通常,具有相同规格的两至四个透镜阵列片具有凸凸透镜元件,每个凸凸透镜元件具有不低于1.45并且排列成3至9列的折射率指数彼此紧密层叠, 的每个透镜光轴。 每个透镜阵列片优选地形成为使得透镜厚度在约4mm至约0.5mm的范围内,并且透镜列的数量在4至6的范围内。

    Optical communication system
    39.
    发明授权
    Optical communication system 有权
    光通信系统

    公开(公告)号:US06856451B2

    公开(公告)日:2005-02-15

    申请号:US10263340

    申请日:2002-10-03

    摘要: An optical communication system is designed to suppress the generation of cross talk even in the case of small wavelength spacing and high bit-rate modulation. An Nth order harmonic generating device where N is an integer of 2 or larger is positioned before a demultiplexer to upconver the frequency or down convert the wavetlength of the light wave by N times. The frequency spacing between the carriers is increased and allows easier separation of the optical signal and permits denser WDM channels and/or higher data rate per channel. In addition, Si or GaAs based photodiodes may be used instead of InP based photodiodes since the 1550 nm bands are converted to 780 nm bands.

    摘要翻译: 光通信系统被设计成即使在小波长间隔和高比特率调制的情况下也能抑制串扰的产生。 其中N是2或更大的整数的N次谐波产生装置位于解复用器之前,以使频率上变频或将光波的长度向下转换N次。 载波之间的频率间隔增加,并且允许更容易地分离光信号并且允许更密集的WDM信道和/或每个信道更高的数据速率。 此外,由于1550nm波段被转换为780nm波段,所以可以使用Si或GaAs基光电二极管代替InP基光电二极管。