Patent ID: 8089539

Claim:
A phase adjusting device for adjusting a phase of a pulse used in imaging of an analog imaged signal based on a digital imaged signal obtained by converting the analog imaged signal obtained by an imaging element to a digital value for every pixel, the phase adjusting device comprising: a characteristic detecting unit for detecting characteristics of the digital imaged signal at every phase shift interval set in advance; a timing adjustment unit for giving a phase adjustment instruction of the pulse so as to converge to an imaging phase in the digital imaged signal at which the characteristics are at a predetermined value or within a predetermined range; and a shift interval switching unit for switching the phase shift interval according to photographing conditions of the imaging element, wherein the shift interval switching unit switches the phase shift interval between a normal adjustment mode and a high speed adjustment mode of performing phase adjustment at high speed, divides an adjustment stage in the high speed adjustment mode into two stages of a rough adjustment stage and a fine adjustment stage following the rough adjustment stage, and sets a fine adjustment phase shift interval in the fine adjustment stage to an interval smaller than a rough adjustment phase shift interval in the rough adjustment stage.