| 摘要 |
PURPOSE: A view selector for fault tester is provided to select a picture of a certain region in the picture surface of a picture multiplying tube by composing a detector of circumference direction and a detector of radius direction. CONSTITUTION: A detector of circumference direction(120) is installed at a low side of a picture amplifying tube and has three mirrors(122,124,126), a frame(128) for supporting three mirrors(122,124,126), and a motor for rotating the frame(128). Three mirrors(122,124,126) are an input side mirror(122), an output side mirror(124), and a vertical mirror(126). The input side mirror(122) and the output side mirror(124) are installed at a center upper side and a low side of the frame(128). The vertical mirror(126) is vertically installed at one side edge of the frame(128) and reflects a picture inputted through the input side mirror(122) to the output side mirror(124). A detector of radius direction(140) has a moving table(142) for mounting a camera(160), a mover for moving the moving table(142) according to a radius direction of the picture surface(142) of the picture multiplying tube, and a preventer of picture rotation(148).
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