Stanley Electric Co., Ltd

Naoya Matsumaru

Atsushi Yamamoto

Makoto Sakurai

Kenji Nagashima

Yoshifumi Takao

Katsunori Nakazawa

Nazirul Afham Idris

An optical scanning device includes a standing plate part which has an inclined groove and a through hole at positions above a vertical cavity surface emitting laser (VCSEL) and a micro electro mechanical systems (MEMS) optical deflector, and which is fixed to a substrate. A plate-shaped mirror and a rotary mirror have one end portions thereof in the Y-axis direction supported by the inclined groove and the through hole, respectively. The through hole has the shape of a rotating body having an axis in the Y-axis direction as the centerline thereof.

Optical scanning device

Provided is an optical scanner including: a mirror driving unit which drives a scanning mirror which reflects light from a light source based on a drive signal; an optical sensor which detects scanning light entering first and second detection positions set on both sides of a range of the maximum scan angle within the range; and a calibrating unit which calibrates the intensity of the drive signal based on the time point at which the detection is performed and the frequency and intensity of the drive signal.

Optical scanner comprising a calibrating unit to calibrate intensity of the drive signal applied to a mirror driving unit

Growing community of inventors

Tokyo, Japan

Naoya Matsumaru