OPTICAL SCANNER, IMAGE DISPLAY APPARATUS, AND HEAD MOUNTED DISPLAY

摘要

An optical scanner includes a movable section, a frame body section, a first shaft section configured to connect the movable section and the frame body section, a fixed section, a second shaft section configured to connect the frame body section and the fixed section, a first distortion detecting element and a second distortion detecting element arranged at an end on the frame body section side of the second shaft section or in any one of the movable section, the frame body section, and the first shaft section, a first signal processing section configured to receive a detection signal of the first distortion detecting element and output a signal based on bending deformation of the second shaft section, and a second signal processing section configured to receive a detection signal of the second distortion detecting element and output a signal based on torsional deformation of the second shaft section.

主权项

1. An optical scanner comprising:
a movable section including a light reflecting section having light reflectivity and swingable around a first axis; a frame body section swingable around a second axis crossing the first axis; a first shaft section configured to connect the movable section and the frame body section; a fixed section; a second shaft section configured to connect the frame body section and the fixed section; a first distortion detecting element arranged at an end on the frame body section side of the second shaft section or in any one of the movable section, the frame body section, and the first shaft section; a second distortion detecting element arranged at the end on the frame body section side of the second shaft section or in any one of the movable section, the frame body section, and the first shaft section; a first signal processing section configured to receive a detection signal of the first distortion detecting element and output a signal based on bending deformation of the second shaft section; and a second signal processing section configured to receive a detection signal of the second distortion detecting element and output a signal based on torsional deformation of the second shaft section.