Mini LC-BOSA optical assembly structure

The utility model relates to the technical field of optical assemblies, in particular to a mini LC-BOSA optical assembly structure, which mainly comprises a shell and an insertion core sleeve assembly arranged at one end of the shell, a reflection part is arranged in the middle of the shell and comprises a first filter and a second filter, and the insertion core sleeve assembly comprises a conventional insertion core sleeve and a focusing lens. The focusing lens is arranged at one end, close to the second filter, of the ferrule sleeve. According to the ferrule sleeve assembly, the conventional ferrule sleeve and the focusing lens are integrated together through active coupling, high focusing precision is achieved, the precision error range is +/-0.1 mm, and the height consistency of the side face of the receiving end of the optical assembly is better. Through the structure, the receiving end does not need to use a focusing lens, the flat window pipe cap with smaller height is used, the typical height of the s