Optical imaging lens
AssigneeGenius Electronic Optical (Xiamen) Co., Ltd.
InventorsTa-Cheng Fan, Jiali Lian, Qi Liu
Life of this patent
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Abstract
An optical imaging lens includes a first lens element to a seventh lens element. The first lens element, the fifth lens element and the sixth lens element are made of plastic. The optical axis region of the image-side surface of the second lens element is convex, the optical axis region of the image-side surface of the third lens element is convex, the optical axis region of the object-side surface of the fourth lens element is convex and the optical axis region of the image-side surface of the seventh lens element is concave to satisfy (T5+G56+T6)/(G23+T3+G34+T4+G45)≥1.200 by controlling the surface curvatures of each lens element to enlarge HFOV, to reduce the system length and to have good imaging quality.
Claims20
An optical imaging lens, from an object side to an image side in order along an optical axis 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, the first lens element to the seventh lens element each having an object-side surface facing toward the object side and allowing imaging rays to pass through as well as an image-side surface facing toward the image side and allowing the imaging rays to pass through, wherein:
- the first lens element is made of plastic;
- an optical axis region of the image-side surface of the second lens element is convex;
- an optical axis region of the image-side surface of the third lens element is convex;
- an optical axis region of the object-side surface of the fourth lens element is convex;
- the fifth lens element is made of plastic;
- the sixth lens element is made of plastic;
- and
- an optical axis region of the image-side surface of the seventh lens element is concave;
- wherein only the above-mentioned seven lens elements of the optical imaging lens have refracting power;
- wherein, T3 is a thickness of the third lens element along the optical axis, T4 is a thickness of the fourth lens element along the optical axis, T5 is a thickness of the fifth lens element along the optical axis, T6 is a thickness of the sixth lens element along the optical axis, G23 is an air gap between the second lens element and the third lens element along the optical axis, G34 is an air gap between the third lens element and the fourth lens element along the optical axis, G45 is an air gap between the fourth lens element and the fifth lens element along the optical axis, G56 is an air gap between the fifth lens element and the sixth lens element along the optical axis, and the optical imaging lens satisfies the relationship:
- (T5+G56+T6)/(G23+T3+G34+T4+G45)≥1.200.
An optical imaging lens, from an object side to an image side in order along an optical axis 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, the first lens element to the seventh lens element each having an object-side surface facing toward the object side and allowing imaging rays to pass through as well as an image-side surface facing toward the image side and allowing the imaging rays to pass through, wherein:
- the first lens element is made of plastic;
- an optical axis region of the image-side surface of the second lens element is convex;
- an optical axis region of the image-side surface of the third lens element is convex;
- an optical axis region of the object-side surface of the fourth lens element is convex;
- the fifth lens element is made of plastic;
- a periphery region of the image-side surface of the sixth lens element is convex;
- and
- the seventh lens element is made of plastic;
- wherein only the above-mentioned seven lens elements of the optical imaging lens have refracting power;
- wherein, T3 is a thickness of the third lens element along the optical axis, T4 is a thickness of the fourth lens element along the optical axis, T5 is a thickness of the fifth lens element along the optical axis, T6 is a thickness of the sixth lens element along the optical axis, G23 is an air gap between the second lens element and the third lens element along the optical axis, G34 is an air gap between the third lens element and the fourth lens element along the optical axis, G45 is an air gap between the fourth lens element and the fifth lens element along the optical axis, G56 is an air gap between the fifth lens element and the sixth lens element along the optical axis, and the optical imaging lens satisfies the relationship:
- (T5+G56+T6)/(G23+T3+G34+T4+G45)≥1.200.
Dependencies are inferred from the claim text.