Optical imaging lens
AssigneeGenius Electronic Optical (Xiamen) Co., Ltd.
InventorsJiayuan Zhang, Xinming Liu, Qi Liu
Life of this patent
Estimating the term…
Abstract
Present embodiments provide for an optical imaging lens. The optical imaging lens includes seven lens elements positioned in an order from an object side to an image side. Through designing concave and/or convex surfaces of the seven lens elements, the improved optical imaging lens may provide better imaging quality and optical characteristics while the total length of the optical imaging lens may be shortened.
Claims20
An optical imaging lens, comprising a first element, a second element, a third element, a fourth 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, each of the first, second, third, fourth, fifth, sixth and seventh lens elements having refracting power, an object-side surface facing toward the object side and allowing an imaging ray to pass therethrough and an image-side surface facing toward the image side and allowing the imaging ray to pass therethrough, wherein:
- the optical imaging lens comprises no other lenses having refracting power beyond the seven lens elements;
- the object-side surface of the third lens element comprises a concave portion in a vicinity of the optical axis;
- the fifth lens element has positive refracting power, and the object-side surface of the fifth lens element comprises a concave portion in a vicinity of the optical axis;
- the object-side surface of the sixth lens element comprises a convex portion in a vicinity of the optical axis;
- the object-side surface of the seventh lens element comprises a concave 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.
An optical imaging lens, comprising a first element, a second element, a third element, a fourth 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, each of the first, second, third, fourth, fifth, sixth and seventh lens elements having refracting power, an object-side surface facing toward the object side and allowing an imaging ray to pass therethrough and an image-side surface facing toward the image side and allowing the imaging ray to pass therethrough, wherein:
- the optical imaging lens comprises no other lenses having refracting power beyond the seven lens elements;
- the object-side surface of the third lens element comprises a concave portion in a vicinity of the optical axis;
- the fifth lens element has positive refracting power, and the object-side surface of the fifth lens element comprises a concave portion in a vicinity of the optical axis;
- the object-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;
- and
- an Abbe number of the fourth lens element is represented by V4, an Abbe number of the fifth lens element is represented by V5, an Abbe number of the sixth lens element is represented by V6, an Abbe number of the seventh lens element is represented by V7, and V4, V5, V6 and V7 satisfy the inequality:
- V4+V5+V6+V7≥180.000.
Dependencies are inferred from the claim text.