Focusing adjusting device and camera module production device, focusing adjustment manner and production manner of camera module, focusing adjustment program and record media

摘要

The invention provides a focus adjusting device. The focus adjusting device is provided with a detection part having a detection distance of y; an operation part operating the distance dz according to the following formula (1); a focus adjusting part shortening the relative distance between a focus lens (21) and an image plane (22) by dz when the distance dz is a positive value and enlarging the relative distance between the focus lens (21) and the image plane (22) by the absolute value of dz. Formula (1) is shown in the specification.