Imaging optical lens assembly, image capturing unit and electronic device
AssigneeLargan Precision Co., Ltd.
InventorTzu-Chieh KUO
Life of this patent
Estimating the term…
Abstract
An imaging optical 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. Each of the six lens elements has an object-side surface facing toward the object side and an image-side surface facing toward the image side. At least one of the six lens elements has at least one aspheric surface having at least one inflection point.
Claims28
An imaging optical 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, a third lens element, a fourth lens element, a fifth lens element and a sixth lens element;
- each of the six lens elements having an object-side surface facing toward the object side and an image-side surface facing toward the image side;
- wherein at least one of the six lens elements has at least one aspheric surface having at least one inflection point, a focal length of the imaging optical lens assembly is f, an axial distance between the object-side surface of the first lens element and an image surface is TL, a curvature radius of the object-side surface of the first lens element is R1, an entrance pupil diameter of the imaging optical lens assembly is EPD, a maximum effective radius of the object-side surface of the first lens element is Y11, a maximum effective radius of the image-side surface of the sixth lens element is Y62, a minimum value among all Abbe numbers of the six lens elements of the imaging optical lens assembly is Vmin, an Abbe number of the fifth lens element is V5, an Abbe number of the sixth lens element is V6, and the following conditions are satisfied:
- 2.0<f/(f−TL);
- −10.0<TL/R1<1.8;
- 1.0<TL/EPD<5.0;
- 0.55<Y11/Y62≤1.8;
- 10.0<Vmin<21.3;
- 20.0<V5+V6<105.0;
- and
- 1.0 [mm]<TL<17.0 [mm].
An imaging optical 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, a third lens element, a fourth lens element, a fifth lens element and a sixth lens element;
- each of the six lens elements having an object-side surface facing toward the object side and an image-side surface facing toward the image side;
- wherein at least one of the six lens elements has at least one aspheric surface having at least one inflection point, a focal length of the imaging optical lens assembly is f, an axial distance between the object-side surface of the first lens element and an image surface is TL, a curvature radius of the object-side surface of the first lens element is R1, an entrance pupil diameter of the imaging optical lens assembly is EPD, a maximum effective radius of the object-side surface of the first lens element is Y11, a maximum effective radius of the image-side surface of the sixth lens element is Y62, a sum of axial distances between every adjacent lens element of the six lens elements is ΣAT, a sum of central thicknesses of the six lens elements of the imaging optical lens assembly is ΣCT, an Abbe number of the fifth lens element is V5, a minimum value among all absolute values of focal lengths of each of the six lens elements of the imaging optical lens assembly is |f|min, half of a maximum field of view of the imaging optical lens assembly is HFOV, and the following conditions are satisfied:
- 2.0<f/(f−TL);
- −10.0<TL/R1<1.8;
- 1.2<TL/EPD<4.0;
- 0.55<Y11/Y62≤1.8;
- 0<ΣAT/ΣCT<1.6;
- 10.0<V5<45.0;
- 1.40<f/|f|min;
- and
- 5.0 [deg.]<HFOV<32.0 [deg.].
Dependencies are inferred from the claim text.