Patent ID: 7909951

Claim:
A method of assembling a light scanning apparatus, the light scanning apparatus including: a substrate having an opening part; a mirror section being located in the opening part of the substrate, the mirror section having side parts, which are held by a beam; and a vibration source being provided on the substrate, the vibration source bending the substrate so as to swing the mirror section on the beam which acts as a pivot shaft, wherein the swung mirror section reflects an irradiated light for scanning, said method being characterized in, that the substrate, a substrate holding member, which holds one of longitudinal ends of the substrate like a cantilever, and a base member, which holds the substrate holding member movably, are separately provided, that said method comprises: a step of measuring a scanning angle and resonance frequency of the mirror section, with actuating the vibration source, in a state where the substrate holding member is temporarily fixed on the base member; a step of moving the substrate holding member, in the longitudinal direction of the substrate, on the base member after releasing the temporarily-fixed state of the substrate holding member; a step of fine-adjusting a substrate-holding position of the substrate holding member by repeating said step of moving the substrate holding member, in the longitudinal direction of the substrate, on the base member after releasing the temporarily-fixed state of the substrate holding member; and a step of fixing the substrate holding member on the base member after the substrate-holding position is set, and that the substrate-holding position of the substrate holding member provided on the base member can be varied, without varying the position of the mirror section with respect to the base member in said fine-adjusting step and said fixing step, when the light scanning apparatus is assembled.