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US 12,754,394 B2Granted
Optical system
AssigneeLG Innotek Co., Ltd.
InventorsSung Min Moon, Young Man Kwon
Life of this patent
Estimating the term…
Abstract
The optical system disclosed in the embodiment includes first to fifth lenses sequentially disposed along an optical axis from an object side to an image side, each of the first to fifth lenses including an object-side surface and an image-side surface, a size of the effective aperture of the image-side surface of the first lens may be greater than the size of the effective aperture of the object-side surface of the first lens, and the thickness of the first lens may be smaller than the thickness of the second lens.
Claims16
An optical system comprising:
- first to fifth lenses sequentially arranged along an optical axis from an object side to an image side,
- wherein each of the first to fifth lenses includes an object-side surface and an image-side surface,
- wherein an effective aperture on the image-side surface of the first lens is larger than an effective aperture on the object-side surface of the first lens,
- wherein a center thickness of the first lens is thinner than a center thickness of the second lens,
- wherein the object-side surface of the first lens has a negative (−) radius of curvature,
- wherein the image-side surface of the first lens has a convex shape,
- wherein the image-side surface of the second lens has a concave shape,
- wherein the first lens has a positive (+) refractive power, and
- wherein the object-side surface of the second lens has an effective aperture smaller than the effective aperture of the object-side surface of the first lens.
6 more elements
Dependencies are inferred from the claim text.