Patent ID: 9538066
Date: 2017-01-03
CPC Classifications: G02B,G03B,H04N

Claim:
1. An information processing method applied to an electronic device comprising a first image acquisition unit and a second image acquisition unit, the method comprising: a coarse focusing step comprising, in a first focusing range: a fine focusing step comprising, in a second focusing range smaller than the first focusing range: wherein the first position is a position, at which the first lens and the second lens are driven respectively by a first driving unit and a second driving unit to arrive when a driving pulse has a first duty cycle, wherein said controlling the first lens to move from the first position in the first direction and controlling the second lens to move from the first position in the second direction opposite to the first direction further comprises: controlling the driving pulse to change from the first duty cycle to a second duty cycle different from the first duty cycle, so as to control the first lens to move from the first position in the first direction; and controlling the driving pulse to change from the first duty cycle to a third duty cycle different from both the first duty cycle and the second duty cycle, so as to control the second lens to move from the first position in the second direction, and wherein the first duty cycle is smaller than the second duty cycle and larger than the third duty cycle; or the first duty cycle is smaller than the third duty cycle and larger than the second duty cycle.