| 摘要 |
PURPOSE:To realize image pickup and distance measuring by using the same light detector, by providing a light path switching device in an infrared image pickup apparatus having scanning mirrors, and dividing the image pickup time and the distance measuring time. CONSTITUTION:An focal optical system 1 collects the light rays having infrared wavelengths from an image pickup region. The image of incident parallel luminous flux is formed on an image forming optical system 7, transduced into an electric signal by an infrared detector 8, and amplified. Said electric signal is processed by a signal processor 10 and becomes a video signal for an image. A rotary mirror 2 and a fine moving mirror 5 sequentially scan a field of view for image pickup. A field of view fixing means comprises a fixed mirror 12, a horizontal light path switching mirror 13, a vertical light path switching mirror 15, horizontal and vertical mirror switching drivers 14 and 16, and a light path switching controller 17. The field of view is fixed to the center of the field of view for image pickup by the field of view fixing means only for the flyback time of the scanning period. At this time, infrared laser light is projected to a target. Thus, the path measuring signal is obtained from the received reflected light. |
