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专利名称：DEVICE FOR MEASURING THE INTENSITY OF
A SCANNING LIGHT BEAM BY MEANS OF ALIGHT CONDUCTING ROD
发明人：PINIOR G,DT申请号：US3728548D申请日：19720323公开号：US3728548A公开日：19730417
摘要：A device for measuring the intensity of a scanning light beam moving in apreferably plane face, having a transparent light-conducting rod having a front and backend and being mounted in said plane face substantially parallel to the direction ofscanning of the light, the rod conducting at least one portion of the light which impingesthereupon and enters therein toward the front end by reflecting on the walls of said rod;a photoelectric receiver mounted adjacent the front end of the rod for transforming thelight current reaching the front end of the rod into an electrical signal; a light-reflectingsurface extending along the light-conducting rod in spaced relation on the side of therod opposite the area of light impingement on the rod; a series of separate screensextending along the axis of the rod and interposed between the light reflecting surfaceand the rod, each screen being adjustable transversely of the longitudinal axis of the rodsuch that each screen influences in a different manner that portion of the light emerginglaterally from the walls of the rod and reflected back into the rod by the light reflectingsurface according to the adjustment of the respective screen as to the portion of thelight reflecting surface exposed to the rod and not blocked by the screen according to
the adjustment of the screen.
申请人：SICK E OPTIK ELEKTRONIK,DT
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