US 12,001,068 B2
Optical assembly for optical transceiver and optical transceiver using same
Yung-sung Son, Yongin-si (KR); Hyun Ryong Cho, Suwon-si (KR); Sang-shin Lee, Seoul (KR); and Young-geon Lee, Seoul (KR)
Assigned to OPTOMIND INC., (KR)
Appl. No. 16/330,396
Filed by OPTOMIND INC., Suwon-si (KR)
PCT Filed Nov. 20, 2018, PCT No. PCT/KR2018/013970
§ 371(c)(1), (2) Date Oct. 8, 2021,
PCT Pub. No. WO2019/139242, PCT Pub. Date Jul. 18, 2019.
Claims priority of application No. 10-2018-0002750 (KR), filed on Jan. 9, 2018.
Prior Publication US 2022/0019036 A1, Jan. 20, 2022
Int. Cl. G02B 6/42 (2006.01); H04B 10/40 (2013.01)
CPC G02B 6/4246 (2013.01) [G02B 6/4243 (2013.01); H04B 10/40 (2013.01)] 18 Claims
OG exemplary drawing
 
1. An optical assembly for use with an optical transceiver and for mounting on a substrate, the optical assembly comprising:
a body assembly comprising:
a reflector configured to change a traveling direction of light moving in a z direction perpendicular to a plane formed by the substrate to a −x direction parallel to the substrate,
a first lens group disposed between at least one optical element and the reflector to optically couple the at least one optical element and the reflector,
a body hole that is an empty space formed at a position spaced apart from the reflector by a predetermined distance, and
a surplus liquid guide groove configured to be adjacent to the body hole, and to drain out an overflow of liquid introduced into the body hole; and
a cover assembly comprising:
a cover spacer inserted in the body hole in a −z direction, and
a second lens group arranged on one side of the cover spacer, for optically coupling at least one optical fiber inserted from an outside in an x direction,
wherein an optical path is established seamlessly from the at least one optical element to the at least one optical fiber through the first lens group, the reflector, the second lens group and the cover spacer in order, by coupling between the cover assembly and the body assembly, with a lower side portion of the cover assembly abutting an upper side portion of the body assembly,
wherein the cover assembly comprises:
a first cover groove formed centrally and terminally in the x direction of the cover assembly, and
a second cover groove and a third cover groove both formed terminally in the −x direction of the cover assembly as well as respectively at two corners facing toward a y direction and a −y direction of the cover assembly.