| 摘要 |
<p>Provided is a focus unit fastening device for a projector, in which a plurality of fastening portions for coupling a focus unit (130) to the projector by pushing and inserting the focus unit (30) into the projector are formed integrally with the projector main body housing (20) and the focus unit (30). The focus unit fastening device includes a projector main body housing (20), a focus unit (30) engaged to the main body housing (20), a first fastening portion (40) provided on the main body housing (20) and the focus unit (30) to fasten the focus unit (30) to the main body housing (20) by pushing the focus unit (30) in a first direction and to prevent the focus unit (30) from moving in a second direction perpendicular to the first direction, and a second fastening portion (50) provided on the main body housing (20) and the focus unit (30) to fasten the focus unit (30) to the main body housing (20) by pushing the focus unit (30) in the first direction and to prevent the focus unit (30) from moving in the first direction.</p> |
