An exemplary apparatus for coupling a first lens to a second lens includes a base, a first plate, a second plate, a recess, and an elastic member. The base has a top surface. The first plate protrudes from the top surface. The second plate is opposite to the first plate and protrudes from the top surface. The recess is defined in the top surface and positioned between the first plate and the second plate. The recess is configured for receiving the second lens. The elastic member is positioned on the top surface. A first end of the elastic member is connected with the first plate. The elastic member is configured for exerting a force on the first lens such that the first lens can be cooperatively clamped between a second end of the elastic member and the second plate.