Optical lens, camera module, and electronic device
AssigneeHuawei Technologies Co., Ltd.
InventorsKaiyuan Zhang, Xiaofang Wang, Sichen Long, Haishui Ye, Wei Wang
Life of this patent
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Abstract
An example optical lens includes at least seven lenses that are arranged from an object side to an image side, where in a direction from the object side to the image side, a first lens has a positive optical power, an object side surface that is of the first lens and that is near an optical axis is a convex surface, an image side surface that is of the first lens and that is near the optical axis is a concave surface, and a last lens has a negative focal power; and a back focal length BFL of the optical lens satisfies: BFL≤2.5 mm.
Claims20
An optical lens, comprising at least seven lenses with a focal power that are arranged from an object side to an image side, wherein:
- the optical lens is in a pop-up camera module;
- in a direction from the object side to the image side, in the at least seven lenses, a first lens has a positive optical power, an object side surface that is of the first lens and that is near an optical axis is a convex surface, an image side surface that is of the first lens and that is near the optical axis is a concave surface, and a last lens has a negative focal power;
- a back focal length BFL of the optical lens satisfies:
- BFL≤2.5 mm when the pop-up camera module is in a pop-up state;
- and
- in the direction from the object side to the image side, a point that is of the object side surface of the first lens and that is farthest away from an imaging surface of the optical lens in projection points of the optical axis of the optical lens is O1, a point that is of an image side surface of the last lens and that is closest to the imaging surface in the projection points of the optical axis is Ox, a distance between 1 and Ox is TTL1, TTL1 and an image height IH of the optical lens satisfy:
- TTL1/IH≤0.57, and x is a quantity of lenses.
A camera module, comprising a photosensitive chip and an optical lens comprising at least seven lenses, wherein the photosensitive chip is disposed on an imaging surface of the optical lens, and the photosensitive chip is configured to convert an optical signal transmitted by the optical lens into an image signal, and wherein:
- in a direction from an object side to an image side, in the at least seven lenses, a first lens has a positive optical power, an object side surface that is of the first lens and that is near an optical axis is a convex surface, an image side surface that is of the first lens and that is near the optical axis is a concave surface, and a last lens has a negative focal power;
- a back focal length BFL of the optical lens satisfies:
- BFL≤2.5 mm when the camera module is in a pop-up state;
- and
- in the direction from the object side to the image side, a point that is of the object side surface of the first lens and that is farthest away from an imaging surface of the optical lens in projection points of the optical axis of the optical lens is O1, a point that is of an image side surface of the last lens and that is closest to the imaging surface in the projection points of the optical axis is Ox, a distance between O1 and Ox is TTL1, TTL1 and an image height (IH) of the optical lens satisfy:
- TTL1/IH≤0.57, and x is a quantity of lenses.
An electronic device, comprising a housing and a camera module, wherein:
- the camera module is disposed in the housing, and the camera module has a first state of being located inside the housing and a second state of being at least partially popped up to the outside of the housing;
- the camera module comprises a photosensitive chip and an optical lens comprising at least seven lenses, wherein the photosensitive chip is disposed on an imaging surface of the optical lens, and the photosensitive chip is configured to convert an optical signal transmitted by the optical lens into an image signal;
- in a direction from an object side to an image side, in the at least seven lenses, a first lens has a positive optical power, an object side surface that is of the first lens and that is near an optical axis is a convex surface, an image side surface that is of the first lens and that is near the optical axis is a concave surface, and a last lens has a negative focal power;
- a back focal length BFL of the optical lens satisfies:
- BFL≤2.5 mm when the camera module is in a pop-up state;
- and
- in the direction from the object side to the image side, a point that is of the object side surface of the first lens and that is farthest away from an imaging surface of the optical lens in projection points of the optical axis of the optical lens is O1, a point that is of an image side surface of the last lens and that is closest to the imaging surface in the projection points of the optical axis is Ox, a distance between O1 and Ox is TTL1, TTL1 and an image height IH of the optical lens satisfy:
- TTL1/IH≤0.57, and x is a quantity of lenses.
Dependencies are inferred from the claim text.