Optical filter module and optical amplification using it
    2.
    发明授权
    Optical filter module and optical amplification using it 失效
    光滤波器模块和光放大使用它

    公开(公告)号:US5790301A

    公开(公告)日:1998-08-04

    申请号:US805559

    申请日:1997-02-25

    摘要: In an optical filter module and an optical amplification apparatus for a wavelength division multiplex (WDM light), the respective wavelength intervals of the plural passing center wavelengths and the filter characteristics in the vicinities of the respective center wavelengths can be set independently, whereby the BPF1 is provided with different passing center wavelengths .lambda.1, .lambda.2 . . . .lambda.n and different filter characteristics. And, when the WDM signal light including wavelengths .lambda.1, .lambda.2 . . . .lambda.n is inputted into the port 2-1a, the .lambda.k (k=1,2 . . . n) component is transmitted by the corresponding BPF1-k, and the transmitted light is multiplexed sequentially and outputted from the port 2-nb and the other wavelength components (noise light components) are reflected by all of the BPFs and outputted from the port 2-nc. When the WDM signal light including wavelengths except for .lambda.1, .lambda.2 . . . .lambda.n is inputted into the port 2-nc, the component of the wavelength .lambda.n (noise light component) is outputted from the port 2-1d and the other wavelength components are outputted from the port 2-1a. And, the optical coupler 6 monitors the output light of the BPF 1 to perceive the levels of the respective wavelength components in the WDM signal light.

    摘要翻译: 在用于波分复用(WDM光)的光学滤波器模块和光学放大装置中,可以独立地设置多个中心波长的多个通过中心波长的各个波长间隔和各个中心波长附近的滤波器特性,从而BPF1 具有不同的通过中心波长λ1,λ2。 。 。 λn和不同的滤波器特性。 而且,当WDM信号光包括波长λ1,λ2时。 。 。 λn被输入到端口2-1a中,λk(k = 1,2 ...)分量被相应的BPF1-k发送,并且发送的光被顺序复用并从端口2-nb输出 并且其他波长分量(噪声光分量)被所有BPF反射并从端口2-nc输出。 当WDM信号光包括除λ1,λ2之外的波长时。 。 。 λn被输入到端口2-nc中,波长λn(噪声光分量)的分量从端口2-1d输出,其它波长分量从端口2-1a输出。 并且,光耦合器6监视BPF 1的输出光以感知WDM信号光中各波长分量的电平。

    Electronic apparatus with a watertight housing
    4.
    发明授权
    Electronic apparatus with a watertight housing 失效
    具有防水外壳的电子设备

    公开(公告)号:US5610655A

    公开(公告)日:1997-03-11

    申请号:US128003

    申请日:1993-09-28

    IPC分类号: G03B17/08 H04N5/225 H04N7/18

    CPC分类号: G03B17/08 H04N5/2251

    摘要: A video camera recorder having a watertight housing including a housing body, a housing bottom and a closure for closing an opening of the housing. The opening is watertightly closed by a watertight structure including an annular bead formed in the housing and a packing provided to the closure. An electronic view finder is watertightly isolated in a space defined between a partition wall, arranged within the housing, and the housing. A cover is provided between the closure and an electronic equipment, such as a video deck, disposed within the housing, and a packing is arranged between the housing and the cover so that the space surrounded by the cover and the housing is held watertightly. Alternatively, the gap between a portion of a video deck disposed in the housing and a housing is watertightly sealed, the portion of the video deck projecting from the housing the opening. A water absorbent or a water sensor is disposed in a recess formed in the housing.

    摘要翻译: 一种具有防水壳体的摄录机,包括壳体,壳体底部和用于封闭壳体的开口的封闭件。 开口由水密结构水密地封闭,包括形成在壳体中的环形凸缘和设置到封闭件的填料。 电子取景器在布置在壳体内的分隔壁与壳体之间的空间中水密隔离。 在封闭件和设置在壳体内的电子设备(例如视频甲板)之间设置有盖,并且在壳体和盖之间布置有密封件,使得由盖和壳体包围的空间保持水密。 或者,设置在壳体中的视频甲板的一部分与壳体之间的间隙是水密密封的,视频台面的部分从壳体突出开口。 吸水剂或水传感器设置在形成在壳体中的凹部中。

    Removable disk construction
    6.
    发明授权
    Removable disk construction 失效
    可移动磁盘结构

    公开(公告)号:US4796140A

    公开(公告)日:1989-01-03

    申请号:US923497

    申请日:1986-10-27

    CPC分类号: G11B17/0284 G11B23/0035

    摘要: A rotary disk including a recording and reproducing sheet, and a hub formed of hard material secured to a central portion of the sheet. The hub comprises a center opening adapted to receive a main spindle of a turntable of disk driving means, two planar surfaces arranged in an intersecting relation to each other and formed on a projecting wall portion of the center opening, and a resilient member located in a position facing the two planar surfaces for pressing the spindle against the two planar surfaces. Even if the recording and reproducing sheet of the rotary disk is a thin magnetic sheet, there is no risk of damage of the sheet. When the rotary disk is set on the turntable, the center of rotation of the rotary disk and the center of rotation of the turntable can be automatically brought into alignment with each other.

    摘要翻译: 包括记录和再现片的旋转盘和由固定到片材的中心部分的硬质材料形成的轮毂。 所述轮毂包括适于容纳盘驱动装置的转台的主轴的中心开口,并且形成在所述中心开口的突出壁部分上并且形成在所述中心开口的突出壁部分上的彼此相交的两个平面,以及位于 面对两个平面的位置,用于将心轴压靠在两个平面上。 即使旋转盘的记录和再现片是薄磁片,也不会损坏片。 当旋转盘设置在转盘上时,旋转盘的旋转中心和转盘的旋转中心可以自动地彼此对准。

    Portable electronic still camera recording optical images of subjects in
a memory which facilitates memory access from an external request
    10.
    发明授权
    Portable electronic still camera recording optical images of subjects in a memory which facilitates memory access from an external request 失效
    便携式电子静物照相机记录存储器中被摄体的光学图像,其便于从外部请求进行存储器访问

    公开(公告)号:US5699173A

    公开(公告)日:1997-12-16

    申请号:US462486

    申请日:1995-06-05

    摘要: An imaging and recording apparatus for electrically recording an optical image of a subject as an image information signal which facilitates memory access from an external device and prevents image information from being changed. Upon manipulation of a recording trigger switch, an image outputted from a camera signal processing circuit at that time is written into a semiconductor memory, then subjected to data compression in a data compression circuit, and stored in a semiconductor memory. It is now assumed that an external device not illustrated is connected to a connector and this external device orders taking in the image of the semiconductor memory. If at this time the semiconductor memory is writing an image, a state detection circuit detects the fact and inhibits the external device from taking in the image. Furthermore, while the external device is taking in the image of the semiconductor memory, the state detection circuit detects this fact. Even if the recording trigger switch is manipulated, an AND gate turns off in response to an output of the state detection circuit and inhibits image writing into the semiconductor memory.

    摘要翻译: 一种用于将被摄体的光学图像电记录为便于从外部设备进行存储器访问并防止图像信息改变的图像信息信号的成像和记录设备。 在操作记录触发开关时,从相机信号处理电路输出的图像被写入半导体存储器中,然后在数据压缩电路中进行数据压缩,并存储在半导体存储器中。 现在假设未示出的外部设备连接到连接器,并且该外部设备命令接收半导体存储器的图像。 如果此时半导体存储器正在写入图像,则状态检测电路检测该事实并且禁止外部设备接收图像。 此外,当外部设备接收半导体存储器的图像时,状态检测电路检测到这一事实。 即使操作记录触发开关,响应于状态检测电路的输出,与门关闭,并禁止对半导体存储器的图像写入。