Optical system
AssigneeLG Innotek Co., Ltd.
InventorsSung Min MOON, Young Man KWON
Life of this patent
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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.
Claims21
-10. (canceled)
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 of the first lens,
- wherein a thickness of the first lens is thinner than a thickness of the second lens, and
- wherein the object-side surface of the first lens has a negative (−) radius of curvature.
An optical system comprising:
- first to fifth lenses sequentially arranged along an optical axis from an object side to an image side,
- wherein the first lens includes an object-side surface having a positive (+) refractive power and having a concave shape with respect to the optical axis, and
- wherein the second lens has a surface having an effective aperture greater than an effective aperture of the object-side surface of the first lens.
An optical system comprising:
- first to fifth lenses sequentially arranged along an optical axis from an object side to an image side,
- wherein a center thickness of the first lens is smaller than center thicknesses of the second lens and the third lens, and thicker than center thicknesses of the fourth lens and the fifth lens,
- wherein the center thickness of the second lens is thicker than the center thickness of the third lens, and
- wherein an object-side surface or an image-side surface of one lens selected from the first lens and the second lens has the largest effective aperture among object-side surfaces and image-side surfaces of the first to fifth lenses.
Dependencies are inferred from the claim text.