FOCAL DISTANCE VARIABLE LENS DEVICE AND FOCAL DISTANCE VARIABLE LENS CONTROL METHOD

摘要

To provide a focal distance variable lens device and a focal distance variable lens control method which can obtain sufficient image quality for a plurality of focal distances and shorten image detection time.SOLUTION: A focal distance variable lens device has an image detection condition setting section for setting image detection conditions, the image detection condition setting section capable of setting a combined mode S41 which repeats an image detection loop including at least one multi-plane image detection operation S44 and at least one single plane image detection operation S45 as image detection conditions. In a multi-plane image detection operation S44, a plurality of focal distances for performing image detection can be set (S42) during one cycle in which a focal distance of a focal distance variable lens varies. In a single plane image detection operation S45, one focal distance for performing image detection can be set (S43) during one cycle in which the focal distance of the focal distance variable lens varies.SELECTED DRAWING: Figure 6