Patent ID: 8531787

Claim:
A lens assembly with a fitting structure, comprising: a first lens; and a second lens comprising a first surface and a second surface, a plurality of protrusions are formed on the second surface, the first lens comprises a third surface and a fourth surface, a plurality of slots are formed on the third surface, the slots include outer portions and inner portions, the protrusions include outer portions and inner portions, the protrusions of the second lens are respectively positioned in the slots of the first lens such that contact areas are formed between the outer portions of the protrusions and the outer portions of the slots, the second lens is connected to the first lens by the contact areas, gaps are defined in the slots and between the inner portions of the slots and the inner portions of the protrusions when the protrusions are fitted into the slots to connect the first lens to the second lens, the lens assembly has an optical axis, each of the plurality of slots comprises a trough portion connected to the outer portion and inner portion for the respective slot, each of the protrusions comprises a crest portion connected to the outer portion and inner portion for the respective protrusion, the gap are defined by the inner portions and trough portions of the slots and the inner portions and crest portions for the protrusions.