Patent ID: 7408727

Claim:
A lens holder comprising: a first shell for holding a first lens group that includes lenses aligned along a direction of a first optical axis; a second shell for holding a second lens group that includes lenses aligned along a direction of a second optical axis; and a connecting shell assembled from two same subunits for holding an optical element that bends an optical path between the first lens group and the second lens group, the connecting shell including a first connecting structure for connecting to the first shell and two identical second connecting structures disposed at two symmetrical positions around the first optical axis for connecting to the second shell, wherein the second shell is connected directly to only one of the two identical second connecting structures, wherein one of the two same subunits being shielded such that only the other of the two same subunits is effective to bend the optical path; wherein each of the two same subunits being a divided unit of the connecting shell on a plane that includes the first optical axis and the second optical axis, wherein each of the two same subunits includes a half of the first connecting structure and halves of the two same second connecting structures.