| 摘要 |
PURPOSE:To drive the focus matching device with high accuracy even in a high brightness object by solving a problem of a fogged state when the brightness of the object is high in the automatic focus matching device configurated such that a high frequency component from a video signal is obtained from an image pickup element on a light receiving face of which the object image is formed and the focus matching device of a lens is driven to maximize the amplitude of the above frequency component. CONSTITUTION:The matching device is provided with a 2nd BPF 10 whose pass band frequency is higher and whose band width is narrower than those of a 1st BPF 5, and a high brightness detection circuit 12 detects it that an object has a higher brightness than that of a high frequency component and the detection signal is received by a 2nd control circuit 13 to select the two BPFs 5, 10, then even when the brightness of the object is high, the characteristic of the high frequency component is not an M-shape but an chevron, then the focus matching is correctly driven with high accuracy. |
