Colored optical fiber and evaluation method thereof
    71.
    发明授权
    Colored optical fiber and evaluation method thereof 有权
    彩色光纤及其评估方法

    公开(公告)号:US07551825B2

    公开(公告)日:2009-06-23

    申请号:US12003435

    申请日:2007-12-26

    IPC分类号: G02B6/00

    摘要: A colored optical fiber whose transmission loss hardly increases even in a high humidity condition or water-immersed condition is provided. The colored optical fiber according to the present invention is a colored optical fiber having a colored coating layer on a circumference of an optical fiber having at least two coating layers on a circumference of a glass optical fiber, characterized in that a difference in each amount of thermal expansion in an outer diameter direction between the optical fiber and a coating layer obtained by removing the glass optical fiber from the optical fiber in a temperature range from −100° C. to 100° C. is 1.8 μm or less.

    摘要翻译: 提供了即使在高湿度条件或水浸条件下传输损耗几乎不增加的有色光纤。 根据本发明的着色光纤是在玻璃光纤的圆周上具有至少两个涂层的光纤的圆周上具有着色涂层的着色光纤,其特征在于,每个量的 在-100℃〜100℃的温度范围内,通过从光纤中除去玻璃光纤而得到的光纤与被覆层之间的外径方向的热膨胀为1.8μm以下。

    Semiconductor laser array device, semiconductor laser device, and
production methods therefor
    72.
    发明授权
    Semiconductor laser array device, semiconductor laser device, and production methods therefor 失效
    半导体激光阵列器件,半导体激光器件及其制造方法

    公开(公告)号:US5500869A

    公开(公告)日:1996-03-19

    申请号:US216609

    申请日:1994-03-23

    摘要: A semiconductor laser array device includes a semiconductor laser chip array including a plurality of laser chips each having a prescribed chip width mounted on a bar-shaped supporting substrate and arranged parallel to a length direction of the substrate and determined in position in the optical axis direction of the laser chip and in the length and height directions of the substrate; a monitor photodiode array including a plurality of monitor photodiodes arranged in an array with the same period as that of the laser chip array mounted on the substrate and arranged parallel with the length direction of the substrate and determined in position in the optical axis direction of the laser chips and in the length direction and the height direction of the substrate; a plurality of lenses mounted on the substrate arranged in the length direction of the substrate with the same period as that of the laser chip array, the lens positions being determined in the optical axis direction of the laser chip and in the length direction and the height direction of the substrate. A respective laser chip, monitor photodiode, and lens constitute an individual semiconductor laser device. The distance between the semiconductor laser chip and the monitor photodiode are determined with high precision.

    摘要翻译: 半导体激光器阵列器件包括半导体激光器阵列,其包括多个激光器芯片,每个激光器芯片均具有规定的芯片宽度,安装在条形支撑衬底上,并平行于衬底的长度方向布置,并且在光轴方向 的激光芯片的长度和高度方向; 监视器光电二极管阵列,其包括以与安装在基板上的激光芯片阵列相同的周期排列成阵列的多个监视光电二极管,并且与基板的长度方向平行布置,并且在基板的光轴方向上的位置 激光芯片和基板的长度方向和高度方向; 以与激光芯片阵列相同的周期安装在基板的长度方向上的多个透镜,透镜位置在激光芯片的光轴方向上确定,并且在长度方向和高度 基板的方向。 相应的激光芯片,监视器光电二极管和透镜构成单独的半导体激光器件。 以高精度确定半导体激光芯片与监视光电二极管之间的距离。

    Projection lens
    74.
    发明授权
    Projection lens 失效
    投影镜头

    公开(公告)号:US4767199A

    公开(公告)日:1988-08-30

    申请号:US854754

    申请日:1986-04-21

    CPC分类号: G02B13/18 G02B13/16

    摘要: A projection lens for projecting an image appearing on a cathode-ray tube onto a screen, small in residual aberrations, having a high imaging performance, also having a large aperture ratio and a wide field angle, suitable for a video projector having a high definition of, say, 1,125 scanning lines. The projection lens has, successively from the screen side, a Gauss type lens system, a positive lens mainly for enlarging the aperture ratio, and a negative lens mainly for widening the field angle, which negative lens has a strongly concave surface at the screen end.

    摘要翻译: 一种投影透镜,用于将出现在阴极射线管上的图像投影到屏幕上,具有高成像性能的小像差,还具有大的开口率和宽视角,适用于具有高清晰度的视频投影仪 例如,1,125条扫描线。 投影透镜从屏幕侧依次具有高斯型透镜系统,主要用于扩大开口率的正透镜和主要用于加宽场角的负透镜,该负透镜在屏幕端具有强凹面 。

    Projection lens apparatus
    75.
    发明授权
    Projection lens apparatus 失效
    投影镜头装置

    公开(公告)号:US4548480A

    公开(公告)日:1985-10-22

    申请号:US459242

    申请日:1983-01-19

    CPC分类号: G02B13/16

    摘要: A projection lens apparatus for projecting an image from a CRT onto a remote screen. The lens apparatus is basically a Petzval type for a large aperture ratio and comprises three lenses. The first lens is a plastic lens having at least one aspherical surface and the third lens has a bi-aspherical surface. To reduce the thermal drift of the focal position, the second lens is a glass lens, having relatively largely positive optical power.

    摘要翻译: 一种用于将来自CRT的图像投影到远程屏幕上的投影透镜装置。 透镜装置基本上是用于大孔径比的Petzval型,并且包括三个透镜。 第一透镜是具有至少一个非球面的塑料透镜,第三透镜​​具有双非球面。 为了减少焦点位置的热漂移,第二透镜是玻璃透镜,具有较大的正光学功率。

    Fuel supply system for an internal combustion engine
    76.
    发明授权
    Fuel supply system for an internal combustion engine 失效
    内燃机燃油供应系统

    公开(公告)号:US4497300A

    公开(公告)日:1985-02-05

    申请号:US355157

    申请日:1982-03-05

    CPC分类号: F02D41/26 F02D41/0087

    摘要: A fuel supply system for an internal combustion engine is disclosed which includes a single fuel injection valve provided at the area at which a plurality of branch passages of an intake manifold join, and a pressure regulator which regulates the pressure of the fuel supplied to the fuel injection valve in accordance with a vacuum pressure in an intake manifold.According to this system, during low load condition, the pressure of the fuel supplied to the fuel injection valve is held within a range of levels lower than that appearing during high load conditions, thereby increasing the duration during which the fuel injection valve is opened in synchronism with the operation of each cylinder. Thereby, this system makes it possible to uniformly supply fuel to each cylinder for all running conditions of the vehicle.

    摘要翻译: 公开了一种用于内燃机的燃料供应系统,其包括设置在进气歧管连接的多个分支通道的区域处的单个燃料喷射阀和调节供应给燃料的燃料的压力的压力调节器 进气歧管中的真空压力。 根据该系统,在低负载状态下,供给到燃料喷射阀的燃料的压力保持在比高负荷状态下低的水平的范围内,从而增加燃料喷射阀打开的持续时间 与每个气缸的操作同步。 因此,该系统使得可以在车辆的所有行驶状态下均匀地向每个气缸供应燃料。

    Projection television apparatus
    77.
    发明授权
    Projection television apparatus 失效
    投影电视机

    公开(公告)号:US4453178A

    公开(公告)日:1984-06-05

    申请号:US331471

    申请日:1981-12-16

    CPC分类号: G02B9/60 H04N9/31

    摘要: A projection television apparatus having a retrofocus type projection lens system which has a sufficiently long back focus, a small F number and a large distortion. The lens system is constructed with five components and five lenses and comprises a first lens which is a negative meniscus lens that has at its screen side a convex surface, a second lens which is a biconvex lens, a third lens which is a biconcave lens, a fourth lens which is a positive lens, and a fifth lens which is a biconvex lens, and which is defined by the following four conditions, i.e.1.4f

    摘要翻译: 一种投影电视装置,具有后焦点足够长,F值小,大失真等的后焦点型投影透镜系统。 透镜系统由五个部件和五个透镜构成,并且包括:第一透镜,其是在其屏幕侧具有凸面的负弯月形透镜,作为双凸透镜的第二透镜,作为双凹透镜的第三透镜, 作为正透镜的第四透镜和作为双凸透镜的第五透镜,其由以下四个条件限定,即:1.4f <| f1 <1.9f(i)0.35f

    Electronic controlled carburetor
    78.
    发明授权
    Electronic controlled carburetor 失效
    电子控制化油器

    公开(公告)号:US4380984A

    公开(公告)日:1983-04-26

    申请号:US278396

    申请日:1981-06-29

    CPC分类号: F02M7/24 F02D35/0061

    摘要: An electronic controlled carburetor has an induction passage into which fuel is fed by a fuel metering system communicated with the atmosphere through main and auxiliary air bleed passages. The main and auxiliary air bleed passages have therein main and auxiliary solenoid valves, respectively, for altering the rate of air flow therethrough. A control circuit determines the duty ratio of a first pulse signal applied to the main solenoid valve in response to an air/fuel ratio indicative signal from an oxygen sensor. The control circuit determines the duty ratio of a second pulse signal applied to the auxiliary solenoid valve from the duty ratio of the first pulse signal so as to permit the main solenoid valve to operate around 50% duty ratio over all engine operating modes.

    摘要翻译: 电子控制化油器具有通过主和辅助排气通道与大气连通的燃料计量系统供给燃料的进气通道。 主要和辅助排气通道分别具有主和辅助电磁阀,用于改变通过其中的空气流速。 控制电路响应于来自氧传感器的空/燃比指示信号来确定施加到主电磁阀的第一脉冲信号的占空比。 控制电路根据第一脉冲信号的占空比确定施加到辅助电磁阀的第二脉冲信号的占空比,从而允许主电磁阀在所有发动机工作模式下操作大约50%的占空比。

    Engine system for motor vehicle
    80.
    发明授权
    Engine system for motor vehicle 失效
    汽车发动机系统

    公开(公告)号:US4240253A

    公开(公告)日:1980-12-23

    申请号:US861663

    申请日:1977-12-19

    摘要: An engine system of the invention comprises an internal combustion engine; a carburetor; an exhaust gas recirculation system; an exhaust gas treatment device; and a source of secondary air, in which there is provided a fluid network which interconnects the source of secondary air, the engine exhaust system at a position upstream of the exhaust gas treatment device and the exhaust gas recirculation system at a position upstream of an exhaust gas recirculation valve and there is also provided an air injection control valve fluidly disposed in the fluid network intermediate the source of secondary air and the exhaust gas recirculation system. The air injection control valve is adapted to selectively permit and prevent the admission of air to the exhaust gas recirculation system. A controller for the air injection control valve is also disclosed which comprises a detector that generates as an output signal a first signal responsive to urban driving conditions which are empirically determined to occur when the motor vehicle is driven in urban areas and a second signal responsive to rural driving conditions which are empirically determined to occur when the motor vehicle is driven in rural areas. The controller causes the air injection valve to permit the admission of air to the EGR system when the detector detects the rural driving conditions.

    摘要翻译: 本发明的发动机系统包括内燃机; 化油器 排气再循环系统; 废气处理装置; 和二次空气源,其中提供了一个流体网络,其将二次空气源互相连接,发动机排气系统在废气处理装置的上游位置和废气再循环系统之间的排气上游 气体再循环阀,并且还提供了流体地设置在二次空气源和废气再循环系统中的流体网络中的空气喷射控制阀。 空气喷射控制阀适于选择性地允许和防止空气进入废气再循环系统。 还公开了一种用于空气喷射控制阀的控制器,其包括一个检测器,该检测器产生响应城市驾驶条件的第一信号,所述城市驾驶条件是经验确定的,当汽车在城市区域被驱动时发生,第二信号响应于 在农村地区驾驶汽车的经验确定的农村驾驶条件。 当检测器检测到农村驾驶条件时,控制器使得空气喷射阀允许空气进入EGR系统。