Optical imaging lens
First Claim
1. An optical imaging lens, sequentially from an object side to an image side along an optical axis, comprising first, second, third, fourth, fifth and sixth lens elements, each of the first, second, third, fourth, fifth and sixth lens elements having refracting power, an object-side surface facing toward the object side and an image-side surface facing toward the image side, wherein:
- a vignetting aperture is formed between the object-side surface of the third lens element to the image-side surface of the fourth lens element;
the optical imaging lens comprises no other lenses having refracting power beyond the first, second, third, fourth, fifth and sixth lens elements;
a F-number of the optical imaging lens is represented by Fno, a distance between the object-side surface of the first lens element and an image plane along the optical axis is represented by TTL, a measurement that is double an image height of the optical imaging lens is represented by IS, and Fno, TTL and IS satisfy the inequality;
Fno≤
2 and TTL/IS≤
1.
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Accused Products
Abstract
Present embodiments provide for an optical imaging lens. The optical imaging lens includes at least a first lens element, a second lens element, a third lens element, a fourth lens element and a fifth lens element positioned in an order from an object side to an image side. Through forming a vignetting aperture and designing parameters satisfying at least two inequalities, the improved optical imaging lens may provide better optical characteristics, a decreased effective focal length and an enlarged angle of view while the total length of the optical imaging lens may be shortened.
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Citations
36 Claims
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1. An optical imaging lens, sequentially from an object side to an image side along an optical axis, comprising first, second, third, fourth, fifth and sixth lens elements, each of the first, second, third, fourth, fifth and sixth lens elements having refracting power, an object-side surface facing toward the object side and an image-side surface facing toward the image side, wherein:
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a vignetting aperture is formed between the object-side surface of the third lens element to the image-side surface of the fourth lens element; the optical imaging lens comprises no other lenses having refracting power beyond the first, second, third, fourth, fifth and sixth lens elements; a F-number of the optical imaging lens is represented by Fno, a distance between the object-side surface of the first lens element and an image plane along the optical axis is represented by TTL, a measurement that is double an image height of the optical imaging lens is represented by IS, and Fno, TTL and IS satisfy the inequality;
Fno≤
2 and TTL/IS≤
1. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. An optical imaging lens, sequentially from an object side to an image side along an optical axis, comprising first, second, third, fourth and fifth lens elements, each of the first, second, third, fourth and fifth lens elements having refracting power, an object-side surface facing toward the object side and an image-side surface facing toward the image side, wherein:
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a vignetting aperture is formed between the object-side surface of the third lens element and the image-side surface of the fourth lens element; the optical imaging lens comprises no other lenses having refracting power beyond the first, second, third, fourth and fifth lens elements; a F-number of the optical imaging lens is represented by Fno, a distance between the object-side surface of the first lens element and an image plane along the optical axis is represented by TTL, a measurement that is double an image height of the optical imaging lens is represented by IS, and Fno, TTL and IS satisfy the inequality;
Fno≤
2 and TTL/IS≤
1. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36)
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Specification