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US 2020/0026035 A1Published application
Camera Lens
AssigneeAac Acoustic Technologies (Shenzhen) Co., Ltd.
InventorHiroyuki Teraoka
Life of this patent
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Abstract
The invention provides a camera lens. The camera lens includes, in an order from an object side to an image side: a first lens with a negative refractive power, a second lens with a positive refractive power, a third lens with a positive refractive power, and a fourth lens with a negative refractive power, a fifth lens with a positive refractive power and a sixth lens with a negative refractive power. The camera lens further satisfies specific conditions for providing improved performance.
Claims5
A camera lens comprising, in an order from an object side to an image side:
- a first lens with a negative refractive power, a second lens with a positive refractive power, a third lens with a positive refractive power, and a fourth lens with a negative refractive power, a fifth lens with a positive refractive power and a sixth lens with a negative refractive power;
- wherein the camera lens further satisfies the following conditions (1)˜(4):
- −9.00≤f1/f≤−2.20 (1)
- 4.00≤f2/f≤16.00 (2)
- 0.80≤(R1+R2)/(R1−R2)≤4.00 (3)
- −2.00≤(R7+R8)/(R7−R8)≤−0.50 (4)
- where,
- f:
- focal length of the whole camera lens;
- f1:
- focal length of the first lens;
- f2:
- focal length of the second lens;
- R1:
- curvature radius of the object side surface of the first lens;
- R2:
- curvature radius of the image side surface of the first lens;
- R7:
- curvature radius of the object side surface of the fourth lens;
- R8:
- curvature radius of the image side surface of the fourth lens.
18 more elements
Dependencies are inferred from the claim text.