Patent ID: 8436937

Claim:
A camera module comprising: a circuit board comprising a supporting surface; a socket fixed on the supporting surface of the circuit board, the socket comprising a receiving space with an entrance at an opposite side thereof to the circuit board and an internal surface in the receiving space, a block protrusion formed on the internal surface, the block protrusion comprising a first ramp extending from the internal surface to a center portion of the receiving space at an opposite end thereof to the circuit board; an image sensor; and a lens group optically coupled with the image sensor, the lens group comprising a plurality of optical components, a slope parallel to the first ramp being formed on one of the optical components, one end of the lens group together with the image sensor being inserted into the receiving space through the entrance with the image sensor received in the receiving space, and at least part of the lens group being received in the receiving space and blocked by the block protrusion with the first ramp resisting against the slope, wherein the optical components comprise an infrared-cut (IR-cut) filter, an object lens, and a light shield stacked in that order above the image sensor, the IR-cut filter is wider than the object lens and the image sensor, the IR-cut filter is received in the receiving space, the object lens and the light shield are located above the receiving space, the IR-cut filter comprises a top surface and a side surface, and the slope is formed on the IR-cut filter and is connected between the top surface and the side surface of the IR-cut filter.