| 摘要 |
PROBLEM TO BE SOLVED: To accurately adjust and correct the deviation of a television camera from its right position by arranging an optical pattern near each lens of a lens group so as to pick up the image of it by means of the television camera and comparing the image pickup signal and the same pattern generated electrically to control the arrangement of the television camera so as to make the sizes and the positions coincide with each other. SOLUTION: A shield 12 as the optical pattern is provided at the back face of the lens group 2 in the form of surrounding each projecting lens 21 to 2n and a light source 21 is placed for photographing by the lens group 2 and the television camera 22. On the other hand, the same image signal with a signal to be outputted when the position of the television camera is correct or a signal consisting of a geometrical pattern whose corresponding relation is known is generated from a signal generator 23 as an electric signal in advance. Then the output image of the television camera 22 and the image made by the electric signal are compared by a comparator 24 and the position of the television camera 22 is controlled by a television camera position controller 25, etc., so as to eliminate this deviation. |
