US 12,474,449 B2
Optical transmitting apparatus and electronic device
Wenxiong Wei, Hangzhou (CN); Fan Wang, Hangzhou (CN); Feng Yu, Hangzhou (CN); Kai Yu, Hangzhou (CN); and Chen Qiu, Hangzhou (CN)
Assigned to Huawei Technologies Co., Ltd., Shenzhen (CN)
Filed by HUAWEI TECHNOLOGIES CO., LTD., Guangdong (CN)
Filed on Sep. 28, 2022, as Appl. No. 17/955,261.
Application 17/955,261 is a continuation of application No. PCT/CN2021/079346, filed on Mar. 5, 2021.
Claims priority of application No. 202010246351.6 (CN), filed on Mar. 31, 2020; and application No. 202011511815.8 (CN), filed on Dec. 18, 2020.
Prior Publication US 2023/0026858 A1, Jan. 26, 2023
Int. Cl. H04N 5/225 (2006.01); G01S 7/481 (2006.01); G01S 17/89 (2020.01); G01S 17/894 (2020.01); G02B 26/08 (2006.01); G02B 26/10 (2006.01); G02B 27/10 (2006.01); H04N 13/207 (2018.01)
CPC G01S 7/4815 (2013.01) [G01S 17/89 (2013.01); G01S 17/894 (2020.01); H04N 13/207 (2018.05)] 20 Claims
OG exemplary drawing
 
1. An optical transmitting apparatus, wherein a light beam emitted by the optical transmitting apparatus is irradiated on a target object and reflected by the target object, comprising: an array light source, a collimating lens, a rotatable scanning mirror, and an optical beam splitter, wherein
the array light source comprises M×N light sources having M rows and N columns, wherein both M and N are positive integers, wherein a spacing between two adjacent columns of the light sources, a spacing between two adjacent rows of the light sources, and an included angle between a column of the light sources and a row of the light sources are predetermined;
the array light source is configured to emit K light beams, K≥1, and K is a positive integer, wherein the array light source is located on a first side of the collimating lens, a plane on which the array light source is located is perpendicular to an optical axis of the collimating lens, and a distance between the plane on which the array light source is located and a center point of the collimating lens is a focal length of the collimating lens;
the collimating lens is configured to convert the K light beams into K first collimated light beams;
the rotatable scanning mirror is located on a second side of the collimating lens and configured to perform one-dimensional rotation, the optical axis of the collimating lens passes through a reflective surface of the rotatable scanning mirror, and the reflective surface is configured to reflect the K first collimated light beams into K second collimated light beams; and
the optical beam splitter is configured to receive the K second collimated light beams and split each of the K second collimated light beams into i third collimated light beams corresponding to i points of the target object, wherein i≥2, and i is a positive integer, and wherein the array light source and optical beam splitter are configured such that one light beam from a single light source corresponds to i pixels in a generated image.