Patent ID: 9507117
Filing Date: 2016-11-29
CPC Classification: G02B

Claim Text:
1. A lens module comprising: a first lens group including a first set of lenses mounted in a lens barrel and having coupling protrusions formed from light blocking portions, to enable optical axis alignment through coupling of the first set of lenses, wherein a gap is formed between the first lens group and an inner peripheral surface of the lens barrel, wherein a lens of the first lens group has a groove formed parallel to a circumference of the lens, the groove being configured to decrease or absorb coupling stress, and wherein the lens has an auxiliary groove formed to extend in a radial direction from an edge of the lens towards the groove, and to connect to the groove; and a second lens group including a second set of lenses sequentially mounted in the lens barrel, such that optical axes of the second set of lenses are aligned with each other by the lens barrel.