Patent ID: 7612955
Filing Date: 2009-11-03
Classification: G02B

Abstract:
1. A multi-function lens module comprising: a hollow cylindrical first part including a peripheral side wall and defining an inner space, the first part having a central axis, the first part also having at least two pairs of openings defined in the peripheral side wall and in communication with the inner space, each pair of openings being symmetric about the central axis, a first pair of the openings being configured for accommodating first optical elements therein, and a second pair of the openings being configured for accommodating second optical elements therein; a second part being received in the inner space of the first part, the second part defining a first through hole therein, the first through hole receiving a third optical element therein, the first part being capable of rotating relative to the second part, the second part having at least one protrusion, each protrusion extending from a respective end of the second part and along a direction substantially perpendicular to a central axis of the first through hole; and two plates sandwiching the first part and the second part therebetween, each plate defining a receiving slot, and each protrusion being slidably received in a respective receiving slot.