US 11,982,805 B2
Wide-angle, high-resolution distance measurement device
Minsu Hwangbo, Suwon-si (KR); Myungsik Kim, Suwon-si (KR); and Hyunseok Hong, Suwon-si (KR)
Assigned to SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Appl. No. 17/599,888
Filed by SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
PCT Filed Mar. 26, 2020, PCT No. PCT/KR2020/004099
§ 371(c)(1), (2) Date Sep. 29, 2021,
PCT Pub. No. WO2020/204458, PCT Pub. Date Oct. 8, 2020.
Claims priority of application No. 10-2019-0037294 (KR), filed on Mar. 29, 2019.
Prior Publication US 2022/0163794 A1, May 26, 2022
Int. Cl. G02B 27/00 (2006.01); G01S 17/48 (2006.01); G01S 17/931 (2020.01); H04N 23/54 (2023.01); H04N 23/55 (2023.01); H04N 23/56 (2023.01)
CPC G02B 27/0025 (2013.01) [G01S 17/48 (2013.01); G01S 17/931 (2020.01); H04N 23/54 (2023.01); H04N 23/55 (2023.01); H04N 23/56 (2023.01)] 13 Claims
OG exemplary drawing
 
1. A wide-angle high-resolution distance measurement device comprising:
a light source configured to irradiate structured light;
a camera configured to form an image by capturing reflected light, which is the structured light irradiated from the light source and reflected from an obstacle; and
a resolution correction lens disposed in front of the camera and configured to correct the reflected light reflected from the obstacle and incident on the camera, wherein resolution of the image formed by the camera becomes uniform regardless of distance,
wherein the resolution correction lens is formed to sequentially change resolution so that a central portion of the resolution correction lens has a high resolution and an outer peripheral portion of the resolution correction lens has a low resolution,
wherein the camera includes an image sensor formed in a rectangular flat plate,
wherein the light source is disposed so that light reflected from a distant obstacle is incident toward a first end of the rectangular flat plate of the image sensor, and light reflected from a nearby obstacle is incident toward a second end of the rectangular flat plate of the image sensor, and
wherein the resolution correction lens is disposed such that the central portion is adjacent to the first end of the rectangular flat plate of the image sensor and the outer peripheral portion is adjacent to the second end of the rectangular flat plate of the image sensor.