Optical imaging lens
AssigneeGenius Electronic Optical (Xiamen) Co., Ltd.
InventorsJiali Lian, Huabin Liao
Life of this patent
Estimating the term…
Abstract
An optical imaging lens including a first to a seventh lens elements arranged in sequence from an object side to an image side along an optical axis is provided. Each lens element includes an object-side surface and an image-side surface. A periphery region of the object-side surface of the second lens element is convex. An optical axis region of the image-side surface of the third lens element is concave. The fifth lens element has negative refracting power and a periphery region of the object-side surface of the fifth lens element is concave. Furthermore, the optical imaging lens satisfies the condition expression: ALT/T1≤4.500.
Claims19
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 arranged in sequence from an object side to an image side along an optical axis, each of the lens elements having an object-side surface facing the object side and allowing an imaging ray to pass through and an image-side surface facing the image side and allowing the imaging ray to pass through, lens elements of the optical imaging lens are only the first lens element, the second lens element, the third lens element, the fourth lens element, the fifth lens element, the sixth lens element and the seventh lens element,
- wherein,
- a periphery region of the object-side surface of the second lens element is convex;
- an optical axis region of the object-side surface of the third lens element is convex, and an optical axis region of the image-side surface of the third lens element is concave;
- and
- the fifth lens element has negative refracting power, a periphery region of the object-side surface of the fifth lens element is concave, and an optical axis region of the image-side surface of the fifth lens element is concave,
- wherein the optical imaging lens satisfies the following condition expression:
- ALT/T1≤4.500 and TTL/(G23+G67)≤7.200,
- wherein ALT is a sum of center thicknesses of the seven lens elements including the first lens element through the seventh lens element along the optical axis, and T1 is a center thickness of the first lens element along the optical axis, TTL is a distance from the object-side surface of the first lens element to an image plane of the optical imaging lens along the optical axis, G23 is an air gap between the second lens element and the third lens element along the optical axis, and G67 is an air gap between the sixth lens element and the seventh lens element along 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 arranged in sequence from an object side to an image side along an optical axis, each of the lens elements having an object-side surface facing the object side and allowing an imaging ray to pass through and an image-side surface facing the image side and allowing the imaging ray to pass through, lens elements of the optical imaging lens are only the first lens element, the second lens element, the third lens element, the fourth lens element, the fifth lens element, the sixth lens element and the seventh lens element,
- wherein,
- a periphery region of the object-side surface of the second lens element is convex;
- the third lens element has negative refracting power, and an optical axis region of the object-side surface of the third lens element is convex;
- and
- the seventh lens element has negative refracting power, and an optical axis region of the object-side surface of the seventh lens element is concave,
- wherein the optical imaging lens satisfies the following condition expression:
- ALT/T1≤4.500 and (T2+T4+T6)/G67≤3.600,
- wherein ALT is a sum of center thicknesses of the seven lens elements including the first lens element through the seventh lens element along the optical axis, and T1 is a center thickness of the first lens element along the optical axis, T2 is a center thickness of the second lens element along the optical axis, T4 is a center thickness of the fourth lens element along the optical axis, T6 is a center thickness of the sixth lens element along the optical axis, and G67 is an air gap between the sixth lens element and the seventh lens element along 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 arranged in sequence from an object side to an image side along an optical axis, each of the lens elements having an object-side surface facing the object side and allowing an imaging ray to pass through and an image-side surface facing the image side and allowing the imaging ray to pass through, lens elements of the optical imaging lens are only the first lens element, the second lens element, the third lens element, the fourth lens element, the fifth lens element, the sixth lens element and the seventh lens element,
- wherein,
- an optical axis region of the image-side surface of the first lens element is concave;
- a periphery region of the object-side surface of the second lens element is convex;
- the third lens element has negative refracting power;
- an optical axis region of the object-side surface of the fifth lens element is convex;
- an optical axis region of the object-side surface of the seventh lens element is concave;
- and
- a center thickness of the fourth lens element along the optical axis is less than an air gap between the sixth lens element and the seventh lens element along the optical axis,
- wherein the optical imaging lens satisfies the following condition expression:
- ALT/T1≤4.500,
- wherein ALT is a sum of center thicknesses of the seven lens elements including the first lens element through the seventh lens element along the optical axis, and T1 is a center thickness of the first lens element along the optical axis.
Dependencies are inferred from the claim text.