Patent ID: 8174746

Claim:
An oscillator device, comprising: at least one movable element supported for oscillatory motion around a rotational axis; and a first rectifying member for suppressing generation of a spiral airflow during oscillation of said movable element; wherein said first rectifying member is provided to occupy a space of at least a portion of a spiral airflow generating region which might otherwise be created when said first rectifying member is not provided there, and wherein, when a largest oscillation angle of said movable element during oscillation is denoted by θmax, a shortest distance between said movable element when at θmax and said first rectifying member is denoted by L 1 , and a shortest distance between said movable element when at −θmax and said first rectifying member is denoted by L 2 , said first rectifying member is provided such that L 1 and L 2 are different from each other.