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    • 1. 发明申请
    • OPTICAL HYDROGEN SENSOR
    • 光电传感器
    • WO2009145578A2
    • 2009-12-03
    • PCT/KR2009002849
    • 2009-05-28
    • UNIV SOGANG IND UNIV COOP FOUNDONGA MFG CORPCHEONG HYEONSIKLEE SE-HEESHIM JAE YOUNGLEE JAE DONGJIN JUNG MO
    • CHEONG HYEONSIKLEE SE-HEESHIM JAE YOUNGLEE JAE DONGJIN JUNG MO
    • G01N21/25
    • G01N21/783
    • The present invention relates to an optical hydrogen sensor which comprises: (a) a sensing module including gasochromic thin film; (b) an optical module; and (c) an optical fiber which optically connects the sensing module and optical module. The optical module comprises (i) a light source which generates a light beam, (?) a light splitter which splits the light beam from the light source, (?) a collimating lens which converts the light beam split by the light splitter into parallel lights, (?) a quarter-wave plate which changes the polarizing direction of the parallel light beams having passed through the collimating lens by 90 °, (v) an object lens which collects the light beams that have passed through the quarter-wave plate, and (vi) a detector which detects the light reflected from the sensing module. The present invention applies an optical pickup such as a conventional CD-ROM or DVD-ROM, and consequently the optical hydrogen sensor can be smaller. Furthermore, time and costs needed for manufacture can be greatly cut down if a cheap optical pick-up device is simply changed and applied to the optical hydrogen sensor.
    • 本发明涉及一种光学氢传感器,其包括:(a)包括气相色谱薄膜的感测模块; (b)光学模块; 和(c)将感测模块和光学模块光学连接的光纤。 光学模块包括:(i)产生光束的光源,(?)分离光源的光分离器,(?)将由光分离器分离的光束转换成平行的准直透镜 光(...)将通过准直透镜的平行光束的偏振方向改变90°的四分之一波片,(v)收集通过四分之一波片的光束的物镜 ,和(vi)检测从感测模块反射的光的检测器。 本发明应用诸如常规CD-ROM或DVD-ROM的光学拾取器,因此光学氢传感器可以更小。 此外,如果简单地将便宜的光学拾取装置改变并应用于光学氢传感器,则可以大大减少制造所需的时间和成本。