| 摘要 |
PURPOSE:To easily control the photographing direction of a main camera by supplying a camera direction control signal from an indication light camera to the main camera and pointing a video camera to the direction of an object which is the irradiating part of light through the camera direction control means of the main camera. CONSTITUTION:Emitted light 15 irradiates the irradiating part 41 of a white board 42, scatters from the irradiating part 41, becomes reflected light 16 and is received by a wide angle lens 21. Then, the indication light camera 2 detects and discriminates that the reflected light 16 is received along with an indication light discrimination circuit 25, performs output as an indication light discrimination signal 26, obtains the arrival direction information of the reflected light 16 along with an arrival direction detector 28 and performs output as an arrival direction signal 29. The signal 29 and the indication light discrimination signal 26 discriminated as an optical level equal to or more than the fixed optical level are supplied to a camera direction control signal generation circuit 27 and the camera direction control signal is outputted to a main camera part 3 so as to let the main camera part 3 turned to the irradiating part 41 of the white board 42. |
