Optical unit and method for producing same

摘要

An optical unit may include a movable body holding an optical element; a fixed body surrounding the movable body; a plate-shaped spring member with a fixed body side connection part, a movable body side connection part, and an arm part which connects the fixed body side connection part with the movable body side connection part; and a drive mechanism to displace the movable body. The cover may be provided with a side plate part. The fixed body side connection part may include a frame part; and a plurality of protruded parts protruded from the frame part. The protruded parts may be separately provided from each other for every welding portion and an entire tip end side of the protruded part is formed as a melted part by welding.

主权项

1. An optical unit comprising:
a movable body which holds an optical element; a fixed body which comprises a cover made of metal and surrounding the movable body; a plate-shaped spring member made of metal which is provided with a fixed body side connection part connected with the fixed body, a movable body side connection part connected with the movable body, and an arm part which connects the fixed body side connection part with the movable body side connection part; and a drive mechanism structured to displace the movable body with respect to the fixed body; wherein the cover is provided with a side plate part which faces a side face of the movable body; wherein the fixed body side connection part comprises:
a frame part which is extended along a rear side end face in an optical axis direction of the side plate part; anda plurality of protruded parts which are protruded from the frame part toward an outer face side of the side plate part and are welded to the rear side end face in the optical axis direction at an overlapped portion with the rear side end face in the optical axis direction; and wherein the protruded parts are separately provided from each other for every welding portion and an entire tip end side of the protruded part is formed as a melted part by welding.