Optical imaging lens assembly, image capturing unit and electronic device
AssigneeLargan Precision Co., Ltd.
InventorsCheng-Yuan LIAO, Shu-Yun YANG
Life of this patent
Estimating the term…
Abstract
An optical imaging lens assembly includes six lens elements which are, in order from an object side to an image side: a first lens element, a second lens element, a third lens element, a fourth lens element, a fifth lens element and a sixth lens element. The second lens element with negative refractive power has an image-side surface being concave in a paraxial region thereof. The fifth lens element has negative refractive power. The sixth lens element has positive refractive power.
Claims32
An optical imaging lens assembly comprising six lens elements, the six lens elements being, in order from an object side to an image side:
- a first lens element;
- a second lens element with negative refractive power having an image-side surface being concave in a paraxial region thereof;
- a third lens element;
- a fourth lens element;
- a fifth lens element having negative refractive power;
- and
- a sixth lens element having positive refractive power;
- wherein a curvature radius of an object-side surface of the fifth lens element is R9, a curvature radius of an image-side surface of the fifth lens element is R10, a focal length of the optical imaging lens assembly is f, a focal length of the fifth lens element is f5, a focal length of the sixth lens element is f6, an entrance pupil diameter of the optical imaging lens assembly is EPD, a central thickness of the third lens element is CT3, a central thickness of the sixth lens element is CT6, and the following conditions are satisfied:
- 0.0<(R9+R10)/(R9−R10);
- f/EPD<3.50;
- |f5/CT3|<1.85;
- and
- |f6/CT6|<0.70.
An optical imaging lens assembly comprising six lens elements, the six lens elements being, in order from an object side to an image side:
- a first lens element having an image-side surface being concave in a paraxial region thereof;
- a second lens element having negative refractive power;
- a third lens element;
- a fourth lens element;
- a fifth lens element having negative refractive power;
- and
- a sixth lens element having positive refractive power;
- wherein a curvature radius of an object-side surface of the fifth lens element is R9, a curvature radius of an image-side surface of the fifth lens element is R10, a focal length of the optical imaging lens assembly is f, a focal length of the fifth lens element is f5, an entrance pupil diameter of the optical imaging lens assembly is EPD, a central thickness of the third lens element is CT3, an Abbe number of the fourth lens element is V4, an Abbe number of the fifth lens element is V5, and the following conditions are satisfied:
- 0.60<(R9+R10)/(R9−R10);
- f/EPD<3.50;
- |f5/CT3|<1.85;
- and
- V4−V5<27.0.
An optical imaging lens assembly comprising six lens elements, the six lens elements being, in order from an object side to an image side:
- a first lens element;
- a second lens element with negative refractive power having an image-side surface being concave in a paraxial region thereof;
- a third lens element;
- a fourth lens element;
- a fifth lens element having negative refractive power;
- and
- a sixth lens element having positive refractive power;
- wherein a curvature radius of an object-side surface of the fifth lens element is R9, a curvature radius of an image-side surface of the fifth lens element is R10, a focal length of the optical imaging lens assembly is f, a focal length of the sixth lens element is f6, an entrance pupil diameter of the optical imaging lens assembly is EPD, a central thickness of the third lens element is CT3, a central thickness of the sixth lens element is CT6, an axial distance between an image-side surface of the sixth lens element and an image surface is BL, and the following conditions are satisfied:
- 0.0<(R9+R10)/(R9−R10);
- f/EPD<2.80;
- |f6/CT6|<0.90;
- and
- BL/CT3<1.0.
Dependencies are inferred from the claim text.