Camera optical lens
AssigneeAAC Optics Solution Pte. Ltd.
InventorsTakaaki Teranishi, Lei Zhang, Yuanshan Cui
Life of this patent
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Abstract
The present invention provides a camera optical lens including, from an object side to an image side: a first lens having a positive refractive power; a second lens having a negative refractive power; a third lens having a negative refractive power; a fourth lens having a positive refractive power; a fifth lens having a negative refractive power; a sixth lens having a positive refractive power; and a seventh lens having a negative refractive power first to seventh lenses. The camera optical lens satisfies following conditions: 8.00≤d1/d2≤16.00; 0.40≤(d2+d6)/d4≤0.70; and 0.50≤R2/R3≤1.20. The camera optical lens can achieve high optical performance while satisfying design requirements for ultra-thin, wide-angle lenses having large apertures.
Claims19
A camera optical lens, sequentially comprising, from an object side to an image side:
- a first lens having a positive refractive power;
- a second lens having a negative refractive power;
- a third lens having a negative refractive power;
- a fourth lens having a positive refractive power;
- a fifth lens having a negative refractive power;
- a sixth lens having a positive refractive power;
- and
- a seventh lens having a negative refractive power,
- wherein the camera optical lens satisfies following conditions:
- 8.00≤d1/d2≤16.00;
- 0.40≤(d2+d6)/d4≤0.70;
- 0.50≤R2/R3≤1.20;
- and
- 0.44≤(R13+R14)/(R13−R14)≤0.79,
- where
- d1 denotes an on-axis thickness of the first lens;
- d2 denotes an on-axis distance from an image side surface of the first lens to an object side surface of the second lens;
- d4 denotes an on-axis distance from an image side surface of the second lens to an object side surface of the third lens;
- d6 denotes an on-axis distance from an image side surface of the third lens to an object side surface of the fourth lens;
- R2 denotes a curvature radius of the image side surface of the first lens;
- R3 denotes a curvature radius of the object side surface of the second lens;
- R13 denotes a curvature radius of the object side surface of the seventh lens;
- and
- R14 denotes a curvature radius of the image side surface of the seventh lens.
Dependencies are inferred from the claim text.