Optical imaging lens
AssigneeGenius Electronic Optical (Xiamen) Co., Ltd.
InventorsHung-Chien Hsieh, Fensha Cai, Xue Li
Life of this patent
Estimating the term…
Abstract
Present embodiments provide for optical imaging lenses. An optical imaging lens may include at least seven lens elements positioned sequentially from an object side to an image side. Through arrangement of the convex or concave surfaces of the lens elements, the length of the optical imaging lens may be shortened while providing better optical characteristics and imaging quality.
Claims20
An optical imaging lens comprising a first lens element, a second lens element, a third lens element, a fourth lens element, a fifth lens element, a sixth lens element and a seventh lens element sequentially from an object side to an image side along an optical axis, the first lens element being arranged to be a lens element having refracting power in a first order from the object side to the image side, the second lens element being arranged to be a lens element having refracting power in a second order from the object side to the image side, the third lens element being arranged to be a lens element having refracting power in a third order from the object side to the image side, the fourth lens element being arranged to be a lens element having refracting power in a fourth order from the object side to the image side, the fifth lens element being arranged to be a lens element having refracting power in a fifth order from the object side to the image side, the sixth lens element being arranged to be a lens element having refracting power in a sixth order from the object side to the image side, the seventh lens element being arranged to be a lens element having refracting power in a last order from the object side to the image side, the first lens element to the seventh lens element each comprising an object-side surface facing toward the object side and allowing imaging rays to pass through and an image-side surface facing toward the image side and allowing the imaging rays to pass through, wherein:
- the first lens element has positive or negative refracting power;
- the second lens element has negative refracting power and the image-side surface of the second lens element comprises a convex portion in a vicinity of a periphery of the second lens element;
- the third lens element has positive refracting power, the object-side surface of the third lens element comprises a convex portion in a vicinity of the optical axis;
- the image-side surface of the fourth lens element comprises a concave portion in a vicinity of the optical axis;
- the object-side surface of the fifth lens element comprises a convex portion in a vicinity of the optical axis;
- the image-side surface of the sixth lens element comprises a convex portion in a vicinity of the optical axis;
- the image-side surface of the seventh lens element comprises a concave portion in a vicinity of the optical axis.
An optical imaging lens comprising a first lens element, a second lens element, a third lens element, a fourth lens element, a fifth lens element, a sixth lens element and a seventh lens element sequentially from an object side to an image side along an optical axis, the first lens element being arranged to be a lens element having refracting power in a first order from the object side to the image side, the second lens element being arranged to be a lens element having refracting power in a second order from the object side to the image side, the third lens element being arranged to be a lens element having refracting power in a third order from the object side to the image side, the fourth lens element being arranged to be a lens element having refracting power in a fourth order from the object side to the image side, the fifth lens element being arranged to be a lens element having refracting power in a fifth order from the object side to the image side, the sixth lens element being arranged to be a lens element having refracting power in a sixth order from the object side to the image side, the seventh lens element being arranged to be a lens element having refracting power in a last order from the object side to the image side, the first lens element to the seventh lens element each comprising an object-side surface facing toward the object side and allowing imaging rays to pass through and an image-side surface facing toward the image side and allowing the imaging rays to pass through, wherein:
- the first lens element has positive or negative refracting power;
- the image-side surface of the second lens element comprises a convex portion in a vicinity of a periphery of the second lens element;
- the third lens element has positive refracting power, the object-side surface of the third lens element comprises a convex portion in a vicinity of the optical axis;
- the image-side surface of the fourth lens element comprises a concave portion in a vicinity of the optical axis;
- the object-side surface of the fifth lens element comprises a convex portion in a vicinity of the optical axis;
- the image-side surface of the sixth lens element comprises a convex portion in a vicinity of the optical axis;
- and
- the image-side surface of the seventh lens element comprises a concave portion in a vicinity of the optical axis and a convex portion in a vicinity of a periphery of the seventh lens element.
Dependencies are inferred from the claim text.