公开(公告)号：US20190243223A1

公开(公告)日：2019-08-08

申请号：US16319262

申请日：2017-05-18

Applicant: APPOTRONICS CORPORATION LIMITED

Inventor： Dongsheng LI ,  Yi LI

IPC: G03B21/14

Abstract: Disclosed are a housing and a projection device comprising the housing. The housing comprises a case body, the case body comprising a first substrate, a second substrate and an annular connection plate, wherein the first substrate and the second substrate are arranged oppositely, the annular connection plate is disposed between the first substrate and the second substrate, the second substrate comprises a lens placement region in which a lens of the projection device is to be arranged, and a region, corresponding to the lens, of the annular connection plate is an opening region. The housing further comprises a knob lens cap arranged at the lens placement region, wherein the knob lens cap comprises a knob portion movably connected to the case body and extending out of the case body; and the knob portion drives the knob lens cap to rotate and move so as to shelter or expose the lens.