Camera module, exposure adjusting method of camera module, and electronic equipment

摘要

According to one embodiment, a camera module has an exposure control unit. When an exposure error has reached within a coring range by first exposure control, the exposure control unit switches exposure control from the first exposure control to second exposure control. The exposure error shows a deviation of an exposure evaluation value to an exposure target value. In the second exposure control, an exposure change amount is reduced than at the time of the first exposure control. When the exposure error has reached a zero level by the second exposure control, the exposure control unit stops the exposure control.

主权项

1. A camera module comprising:
circuitry configured to
execute a light amount measurement using an image signal obtained by picking up an object image and generate an exposure evaluation value that is a result of measurement of the light amount,calculate an exposure error showing a deviation of the exposure evaluation value to an exposure target value for achieving a correct exposure, andexecute exposure control in an exposure change amount according to the exposure error, wherein the circuitry permits the exposure control for converging the exposure error to a zero level to be switched between first exposure control and second exposure control in which the exposure change amount is reduced than at the time of the first exposure control, the circuitry sets the exposure control at the time the exposure error calculated by the circuitry is out of a coring range set including the zero level as the first exposure control, when the exposure error has reached within the coring range by the first exposure control, the circuitry switches the exposure control from the first exposure control to the second exposure control, and when the exposure error has reached the zero level by the second exposure control, the circuitry stops the exposure control.