Patent ID: 11971538
Assignee: STANLEY ELECTRIC CO., LTD.
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 0:
1. An optical scanning device comprising:
a mirror unit configured to reflect light beams;
a first drive unit configured to rotate the mirror unit around a first drive axis;
a movable frame that is connected to the mirror unit on the first drive axis and is disposed around the mirror unit; and
a second drive unit that is connected to the movable frame on a second drive axis perpendicular to the first drive axis, the second drive unit being configured to rotate the mirror unit around the second drive axis, wherein
the movable frame has a rectangular shape and has a rib that is provided on a rear surface of the movable frame, and
corner regions of four corners of the movable frame have an absence region which is any one of a region where no rib is partially provided and a region where a rib with a thickness thinner than other regions is provided.