OPTICAL MODULE AND RANGING DEVICE

WIPO Patent Application WO/2020/105239

A1

The purpose of the present invention is to provide an optical module for irradiating an object with a light beam and detecting reflected light therefrom, wherein the light beam is linear and has no distortion irrespective of the angle of incidence of the light beam, which is scanned. The present invention provides an optical module in which an optical scan unit (150) scans a light beam in a predetermined direction (vertical direction). An optical conversion unit (161) converts the scanned light beam into a linear light beam in a line direction (horizontal direction) substantially orthogonal to the scan direction. An optical detection unit (180) detects reflected light from an object with respect to the linear light beam. The optical conversion unit (161) has an optical surface (S1) with a radius of curvature (rx) in the scan direction which is substantially equal to the distance from a virtual scanning center point (Ox) in the scan direction to a central point (A) on the optical surface (S1), irrespective of the position in the line direction. The optical module of the present invention is applicable to a ranging device.

WO/2005/074416	DYNAMIC OPTICAL TAG
WO/2021/033439	SEMICONDUCTOR LASER DRIVE DEVICE, ELECTRONIC APPARATUS, AND METHOD FOR MANUFACTURING SEMICONDUCTOR LASER DRIVE DEVICE
WO/2021/019903	LASER RADAR

KOBAYASHI TAKASHI (JP)
UKAI HIRATAKA (JP)
NISHIMORI HIROAKI (JP)

PCT/JP2019/032815

May 28, 2020

August 22, 2019

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SONY SEMICONDUCTOR SOLUTIONS CORP (JP)

G01S7/481; G01C3/06; G02B26/08; G02B26/12

JP2002039716A	2002-02-06
JP2009156810A	2009-07-16
JP2003272061A	2003-09-26
JP2016102738A	2016-06-02
US20150301182A1	2015-10-22

MARUSHIMA, Toshikazu (JP)

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