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US 12,596,291 B2Granted
Lens assembly and a camera module including the same
AssigneeLG Innotek Co., Ltd.
InventorsEun Sung Seo, Dae Sik Jang, Ji Sung Kim
Life of this patent
Estimating the term…
Abstract
The lens assembly may include a housing, a first group lens assembly disposed in the housing, and a second group lens assembly disposed at one side of the first group lens assembly. The first group lens assembly may be a fixed lens assembly, and may include a first lens and a liquid lens. The second group lens assembly may be a movable lens assembly and may include a second lens group. The first group lens assembly may have a negative (−) refractive power as a whole, and the second group lens assembly may have a positive (+) refractive power as a whole.
Claims16
A camera module comprising:
- a lens assembly comprising:
- a first group lens assembly;
- and
- a second group lens assembly disposed on one side of the first group lens assembly;
- a housing where the first group lens assembly and the second group lens assembly are disposed;
- and
- an image sensor disposed on one side of the housing,
- wherein the first group lens assembly comprises a first lens group and a liquid lens,
- wherein the second group lens assembly comprises a second lens group,
- wherein an optical system constituting the first group lens assembly has a negative refractive power,
- wherein an optical system constituting the second group lens assembly has a positive refractive power,
- wherein the liquid lens is disposed between the first lens group and the second lens group,
- wherein each of the first lens group and the second lens group comprises a plurality of lenses,
- wherein the first lens group comprises a first lens and a second lens, each of the first lens and the second lens comprising a plastic lens or a glass lens,
- wherein the second lens group is a moving lens group and comprises a third lens, a fourth lens, a fifth lens, and a sixth lens, each of the third lens, the fourth lens, the fifth lens, and the sixth lens comprising a plastic lens or a glass lens,
- wherein each lens in the first group lens assembly has a fixed position with respect to an optical axis direction,
- wherein the moving lens group of the second lens group is disposed between the first group lens assembly having the fixed position and the image sensor without another interposed fixed lens group being located between the moving lens group and the image sensor,
- wherein a first surface of the second lens of the first lens group contacts the liquid lens and a second surface of the second lens opposite the first surface of the second lens does not contact the first lens of the first lens group,
- wherein the first surface of the second lens of the first lens group that contacts the liquid lens includes a concave surface such that edge portions of the first surface the second lens contact the liquid lens but a central portion of the first surface the second lens does not contact the liquid lens, and
- wherein the second surface of the second lens opposite the first surface of the second lens includes a concave surface.
17 more elements
Dependencies are inferred from the claim text.