| 摘要 |
A camera is provided having an image sensor for taking images, a reception optics, an adjustable focusing unit for setting a focal position of the reception optics as well as a control and evaluation unit which is configured to continuously move the focal position of the reception optics between a first focal position and a second focal position by means of the focusing unit and to take a respective one image at at least one third focal position and one fourth focal position, to determine a degree of sharpness of the images and to determine a focal position of greatest image sharpness therefrom. The control and evaluation unit is configured to move the focal position cyclically and continuously to and fro between the first focal position and the second focal position and to take a further image when the focal position of greatest image sharpness is reached. |
