Patent ID: 8248719
Filing Date: 2012-08-21
Classification: G02B,H04N

Abstract:
1. A camera module comprising: a barrel comprising a plurality of discrete grooves defined in the outer cylindrical surface thereof, each groove obliquely extending from a first end of the barrel to an opposite second end of the barrel; and a holder comprising an accommodating space defined therein, and a plurality of discrete elongated protrusions formed on the inner cylindrical surface thereof, the barrel being received in the accommodating space of the holder, each protrusion engaged in a respective groove; wherein the barrel comprises a first central axis, each groove is projected along the first central axis of the barrel and forms a first arc on a projection plane perpendicular to the first central axis, a central angle the first arc subtends is less than 180 degrees; and wherein the holder comprises a second central axis, each protrusion is projected along the second central axis of the holder and forms a second arc on a projection plane perpendicular to the second central axis, a central angle the second arc subtends is less than 180 degrees.