| 摘要 |
PURPOSE:To achieve infrared rays with high uniformity, by using a rotating plate having a plurality of wings provided in front of an infrared ray detector train and a clamp circuit making clamp in synchronizing with the rotating plate. CONSTITUTION:A rotating plate 18 rotating asynchronizingly with the rotation of a frame 3 is provided in front of an infrared ray detector train 2. At the output of a preamplifier 6, a clamp circuit 21 clamping the input with a clamp signal 20 generated when the wings of the plate 18 interrupt the eye sight of the train 2 is provided. A signal clamped at the clamp circuit 21 is applied to a picture display 7 via a multiplexer 5. |
