US 11,054,595 B1
Optical signal transmission device
Xinde Cai, Zhuzhou (CN); and Jianbo Lan, Luzhou (CN)
Assigned to BLOVELIGHT (GUANGDONG) INTELLIGENT TECHNOLOGY CO., LTD., Dongguan (CN)
Filed by BLOVELIGHT (GUANGDONG) INTELLIGENT TECHNOLOGY CO., LTD., Dongguan (CN)
Filed on Mar. 5, 2020, as Appl. No. 16/810,593.
Claims priority of application No. 201911397626.X (CN), filed on Dec. 30, 2019.
Int. Cl. G02B 6/42 (2006.01); G02B 6/38 (2006.01); G02B 6/40 (2006.01)
CPC G02B 6/4292 (2013.01) [G02B 6/428 (2013.01); G02B 6/4214 (2013.01); G02B 6/3855 (2013.01); G02B 6/40 (2013.01); G02B 6/4243 (2013.01); G02B 6/4244 (2013.01)] 17 Claims
OG exemplary drawing
 
5. An optical signal transmission device, comprising a lens base, a cover plate, an optical fiber plug and a PCB, wherein an insert block is formed at a front end of the optical fiber plug, a plurality of optical fibers penetrate the optical fiber plug, and end faces of the optical fibers extend toward a front side of the insert block or are flush with a front end face of the insert block; a socket is provided at a rear end of the lens base, the insert block is inserted into the socket and the two cooperate with each other; a recess is provided in the top of the lens base, and a reflective bevel is formed on the inner wall of the recess; the PCB is stacked on the bottom of the lens base, a laser is provided on the PCB, the end faces of the optical fibers and the laser both face the reflective bevel, a laser beam emitted from the laser is reflected to the end faces of the optical fibers by the reflective bevel, and optical signals are transmitted to the outside by means of the optical fibers; and the cover plate is stacked on the top of the lens base, downwardly-extending fastening plates are respectively formed at peripheral edges of the cover plate, the plurality of fastening plates respectively abut against a front end of the lens base, a left side of the lens base, a right side of the lens base and a rear end of the optical fiber plug, and the lens base and the optical fiber plug are secured by means of the cover plate and the plurality of fastening plates, wherein two support arms are formed at the rear end of the lens base, the two support arms are respectively provided on the left and right sides of the socket, and the optical fiber plug is sandwiched between the two support arms; and wherein slots are formed on inner sides of the support arms, outwardly-protruding guide blocks are respectively formed on the left and right sides of the optical fiber plug, the guide blocks are aligned with the slots on a one-to-one basis, the guide blocks are inserted into the slots and the two closely cooperate with each other.