Device for controlling an amount of light of a lighting unit for an endoscope
    51.
    发明授权
    Device for controlling an amount of light of a lighting unit for an endoscope 失效
    用于控制用于内窥镜的照明单元的光量的装置

    公开(公告)号:US06299577B1

    公开(公告)日:2001-10-09

    申请号:US09256233

    申请日:1999-02-24

    Abstract: A device for controlling an amount of light of a lighting unit for use in an endoscope, used to view an image of an object. The device includes a plurality of light shields for shielding light generated by a light source and transmitted to the endoscope. A plurality of stepping motors drive the light shield for a series of predetermined time intervals. Brightness of the image is detected during each of the time intervals and pulses are generated during each of the time intervals. The number of pulses generated is determined in accordance with a difference between the brightness of the image detected during each of the time intervals and a desired brightness of the image. The pulses generated are used to control the drive of the plurality of stepping motors in each of the plurality of time intervals.

    Abstract translation: 一种用于控制用于观察物体的图像的用于内窥镜的照明单元的光量的装置。 该装置包括用于屏蔽由光源产生的光并传输到内窥镜的多个遮光罩。 多个步进电机以一系列预定的时间间隔驱动遮光罩。 在每个时间间隔期间检测图像的亮度,并且在每个时间间隔期间产生脉冲。 根据在每个时间间隔期间检测到的图像的亮度与图像的期望亮度之间的差异来确定产生的脉冲数。 产生的脉冲用于在多个时间间隔的每一个中控制多个步进电动机的驱动。

    Optical masking apparatus
    53.
    发明授权
    Optical masking apparatus 失效
    光掩模装置

    公开(公告)号:US5557401A

    公开(公告)日:1996-09-17

    申请号:US318360

    申请日:1994-10-05

    CPC classification number: G01J1/04 G01J1/044 G01M11/3154

    Abstract: An optical masking apparatus of an OTDR capable of lowering insertion loss and of easily aligning optical axes and of being structured at low cost. The apparatus comprises an optical pulse generating means, an optical branching coupler for permitting an optical pulse generated by the optical pulse generating means to be incident to an optical fiber to be measured, and an optical chopper means to which a reflected light from the optical fiber is incident by way of the optical branching coupler wherein the optical chopper means operates in synchronization with the optical pulse to remove a desired range of the reflected light. A light signal supplied to an optical/electric transducer from the optical chopper means is converted into an electric signal, which is displayed on an indicator by way of a signal processing circuit.

    Abstract translation: 一种OTDR的光掩模装置,其能够降低插入损耗并且容易地对准光轴并且以低成本构造。 该装置包括:光脉冲发生装置,用于允许由光脉冲发生装置产生的光脉冲入射到待测光纤的光分支耦合器;以及光斩波装置,来自光纤的反射光 通过光分路耦合器入射,其中光斩波装置与光脉冲同步地操作以去除反射光的期望范围。 从光斩波器装置提供给光/电换能器的光信号被转换成通过信号处理电路显示在指示器上的电信号。

    Superconducting integrating spheres
    54.
    发明授权
    Superconducting integrating spheres 失效
    超导整体球

    公开(公告)号:US5258363A

    公开(公告)日:1993-11-02

    申请号:US334914

    申请日:1989-03-21

    Applicant: Aharon Z. Hed

    Inventor: Aharon Z. Hed

    Abstract: A high efficiency integrating sphere that can be used in a large variety of scientific instruments. The sphere having an efficiency gain obtained by using a superconducting material, acting as a perfect reflector, on the inside hollow surface of the sphere. The sphere is operated with a delay between the incident and sensed light, heretofore not possible, and yielding substantial improvement in the signal-to noise ratio of the integrating sphere.

    Abstract translation: 可用于各种科学仪器的高效率积分球。 球体具有通过使用作为完美反射器的超导材料获得的效率增益在球体的内部中空表面上。 球体在事件和感测光之间的延迟下运行,至此不可能,并且使积分球的信噪比得到显着提高。

    ADJUSTABLE SECURITY SENSING DEVICE
    55.
    发明公开
    ADJUSTABLE SECURITY SENSING DEVICE 审中-公开
    可调安全感测装置

    公开(公告)号:EP3171346A3

    公开(公告)日:2017-08-09

    申请号:EP16200297.6

    申请日:2016-11-23

    Abstract: A sensing device comprising an electromagnetic sensor (104, 118) having a surface with a plurality of different electromagnetic radiation interception areas arranged one above the other, one or more controllable flaps (112) adapted to cover one or more of the different electromagnetic radiation interception areas preventing the electromagnetic sensor from intercepting electromagnetic radiation on the covered electromagnetic radiation interception areas, at least one control mechanism adapted to maneuver the controllable flaps so as to change the covered electromagnetic radiation interception areas and a plurality of lenses (114) located in front of the electromagnetic sensor, each having a different focal length (116). One of the lenses has a certain focal length and focuses electromagnetic radiation to at least one of the different electromagnetic radiation interception areas, and another of the lenses has a different focal length and focuses electromagnetic radiation to another electromagnetic radiation interception area.

    Abstract translation: 本发明公开了一种感测装置,包括:电磁传感器(104,118),其具有一个表面,多个不同的电磁辐射拦截区域一个在另一个之上布置;一个或多个可控制的折翼(112),适于覆盖一个或多个不同的电磁辐射拦截 防止所述电磁传感器拦截所述被覆盖的电磁辐射拦截区域上的电磁辐射的区域,至少一个控制机构,所述至少一个控制机构适于操纵所述可控制的翼片以改变所述覆盖的电磁辐射拦截区域和位于所述覆盖的电磁辐射拦截区域之前的多个透镜(114) 该电磁传感器各自具有不同的焦距(116)。 其中一个透镜具有一定的焦距并且将电磁辐射聚焦到不同的电磁辐射拦截区域中的至少一个,并且另一个透镜具有不同的焦距并且将电磁辐射聚焦到另一个电磁辐射拦截区域。

    STRAHLUNGSMESSVORRICHTUNG
    59.
    发明公开
    STRAHLUNGSMESSVORRICHTUNG 审中-公开
    辐射测量设备

    公开(公告)号:EP1423667A2

    公开(公告)日:2004-06-02

    申请号:EP02776996.7

    申请日:2002-09-05

    Abstract: The invention relates to a radiation measuring device, especially for measuring high power radiation (10), comprising a measuring window (12) and a deflecting unit which can guide at least one part of the radiation which is to be measured (10) from the measuring window (12) to a sensor unit (14). According to the invention, the deflecting unit comprises at least one bar (16) into which the radiation (10) is injected via the measuring window (12), parallel to the longitudinal extension (18) thereof, via a side (70). The radiation is retransmitted along the longitudinal extension of the surface (18) bar to the sensor unit (14).

    Strahlungsempfänger mit aktivem optischen Schutzsystem
    60.
    发明公开
    Strahlungsempfänger mit aktivem optischen Schutzsystem 审中-公开
    与有源光学保护系统辐射接收器

    公开(公告)号:EP1217347A3

    公开(公告)日:2004-02-11

    申请号:EP01123715.3

    申请日:2001-10-04

    Inventor: Becht, Hubert

    Abstract: Strahlungsempfänger mit einem Photodetektor und einem Sensor, wobei der Sensor (11) die Strahlungsintensität aufnimmt und ein vor dem Photodetektor (22) angeordneter Shutter (19) in Abhängigkeit von der detektierten einfallenden Strahlungsintensität angesteuert wird. Dabei wird die einfallende Strahlung über eine vor dem Shutter (19) angeordnete Verzögerungseinrichtung (15) dem Photodetektor (22) zugeführt wird, so daß aufgrund der Ansteuerung des Shutters keine den Shutter zerstörende Strahlung den Shutter erreichen kann und gegebenenfalls vom Shutter abgehalten bzw. absorbiert wird..

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