US 12,235,406 B2
Multi-optical axis sensor
Jae Jeong Lim, Bucheon-si (KR); Hyun Seung Lee, Incheon (KR); and Seong Chan Kim, Incheon (KR)
Assigned to AUTONICS CORPORATION, Busan (KR)
Appl. No. 17/802,625
Filed by AUTONICS CORPORATION, Busan (KR)
PCT Filed Dec. 8, 2020, PCT No. PCT/KR2020/017890
§ 371(c)(1), (2) Date Aug. 26, 2022,
PCT Pub. No. WO2021/177557, PCT Pub. Date Sep. 10, 2021.
Claims priority of application No. 10-2020-0026480 (KR), filed on Mar. 3, 2020.
Prior Publication US 2023/0106717 A1, Apr. 6, 2023
Int. Cl. G01V 8/20 (2006.01); F16P 3/14 (2006.01); F21K 9/272 (2016.01); F21K 9/61 (2016.01); G01J 1/02 (2006.01); G01J 1/04 (2006.01); G01J 1/58 (2006.01)
CPC G01V 8/20 (2013.01) [F16P 3/144 (2013.01); F21K 9/272 (2016.08); F21K 9/61 (2016.08); G01J 1/0271 (2013.01); G01J 1/04 (2013.01); G01J 1/0437 (2013.01); G01J 1/58 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A multi-optical axis sensor comprising:
a light transmitter including a plurality of light transmission elements; and
a light receiver including a plurality of light reception elements disposed to respectively face the plurality of light transmission elements and configured to receive light,
wherein the light transmitter or the light receiver comprises:
a housing provided with an internal accommodation space, the housing including:
a main body having opened ends:
a pair of end caps including:
one end cap fastened to one end of the main body; and
an other end cap fastened to an other end of the main body; and
a pair of end covers fastened to the pair of end caps, the pair of end covers including:
a first end cover fastened to an upper side of the one end cap; and
a second end cover fastened to an upper side of the other end cap;
a light guide unit spanning the main body and the pair of end caps and including the plurality of light transmission elements or the plurality of light reception elements; and
a plurality of light sources provided inside the one end cap and configured to output light indicating a light incidence state, a light blockage state and a muting state.