LIGHT OUTPUT CALIBRATION IN AN OPTOACOUSTIC SYSTEM
    1.
    发明公开
    LIGHT OUTPUT CALIBRATION IN AN OPTOACOUSTIC SYSTEM 审中-公开
    光透镜系统中的光功率校准

    公开(公告)号:EP2967486A4

    公开(公告)日:2016-12-07

    申请号:EP14763941

    申请日:2014-03-14

    摘要: An optoacoustic system includes first and second light sources capable of generating pulse of light at first and second wavelengths, first and second electrically controlled optical attenuators, first and second light sync detectors, and a combiner. A power meter that is calibrated to determine power at the first and second predominant wavelength measures power at the first wavelength after the first light sync is detected and measures power at the second wavelength after the second light sync is detected. The system includes a calibration mode wherein it electrically attenuates the first optical attenuator when the power measured by the power meter at the first wavelength after the first light sync is detected is above a first level, and electrically attenuated the second optical attenuator when the power measured by the power meter at the second wavelength after the second light sync is detected is above a second level.

    摘要翻译: 光声系统包括能够产生第一和第二波长的光脉冲的第一和第二光源,第一和第二电控光衰减器,第一和第二光同步检测器以及组合器。 被校准以确定第一和第二主要波长的功率的功率计测量在检测到第一光同步之后的第一波长处的功率,并且在检测到第二光同步之后测量第二波长的功率。 该系统包括校准模式,其中当在检测到第一光同步之后由功率计在第一波长处测量的功率高于第一电平时,其电衰减第一光衰减器,并且当测量的功率被电衰减时,第二光衰减器 在检测到第二光同步之后的第二波长处的功率计高于第二电平。

    PROBE WITH OPTOACOUSTIC ISOLATOR
    5.
    发明公开
    PROBE WITH OPTOACOUSTIC ISOLATOR 审中-公开
    SONDE MIT OPTOAKUSTISCHEM隔离器

    公开(公告)号:EP2948064A4

    公开(公告)日:2016-10-26

    申请号:EP14743012

    申请日:2014-01-22

    CPC分类号: A61B5/0095 A61B5/14542

    摘要: An optoacoustic probe including an ultrasound transducer array, an acoustic lens and a light path separated from the transducer array by an isolator to mitigate light energy from the light path from reaching the transducer array. The isolator being formed from a mixture including a flexible carrier, a coloring and between 10% and 80% by volume micro-bubbles. The isolator mixture being adapted to both absorb light energy and the optoacoustic response to light energy. In an embodiment, an optoacoustic probe also comprises an optical window and/or a diffuser, and the isolator also separating the transducer array from these components.

    摘要翻译: 包括超声换能器阵列,声透镜和通过隔离器与换能器阵列隔开的光路的光声探头,以减轻来自光路的光能到达换能器阵列。 隔离器由包括柔性载体,着色剂和10体积%至80体积%微小气泡的混合物形成。 隔离器混合物适于吸收光能和对光能的光声响应。 在一个实施例中,光声探测器还包括光学窗口和/或扩散器,并且隔离器还将换能器阵列与这些部件分离。