Imaging optical lens assembly, imaging apparatus and electronic device
AssigneeLargan Precision Co., Ltd.
InventorsSHAO-YU CHANG, WEI-YU CHEN
Life of this patent
Estimating the term…
Abstract
An imaging optical lens assembly includes five optical elements with refractive power. The five optical elements, in order from an object side to an image side along an optical path, are a first optical element, a second optical element, a third optical element, a fourth optical element, and a fifth optical element. The first optical element has an object-side surface being concave in a paraxial region thereof. The third optical element has negative refractive power.
Claims37
An imaging optical lens assembly, comprising five optical elements with refractive power, the five optical elements, in order from an object side to an image side along an optical path, being a first optical element, a second optical element, a third optical element, a fourth optical element, and a fifth optical element,
- wherein the first optical element has an object-side surface being concave in a paraxial region thereof, the third optical element has negative refractive power, a sum of axial thicknesses of the first optical element, the second optical element, the third optical element, the fourth optical element, and the fifth optical element along the optical path is ΣCT, an axial thickness of the first optical element along the optical path is CT1, and the following condition is satisfied:
- ΣCT/CT1<2.30.
An imaging optical lens assembly, comprising five optical elements with refractive power, the five optical elements, in order from an object side to an image side along an optical path, being a first optical element, a second optical element, a third optical element, a fourth optical element, and a fifth optical element,
- wherein the first optical element has an object-side surface being concave in a paraxial region thereof, the first optical element has an image-side surface being convex in a paraxial region thereof, the third optical element has negative refractive power, the fifth optical element has an image-side surface being concave thereof, a sum of axial thicknesses of the first optical element, the second optical element, the third optical element, the fourth optical element, and the fifth optical element along the optical path is ΣCT, an axial thickness of the first optical element along the optical path is CT1, and the following condition is satisfied:
- ΣCT/CT1<3.0.
An imaging optical lens assembly, comprising five optical elements with refractive power, the five optical elements, in order from an object side to an image side along an optical path, being a first optical element, a second optical element, a third optical element, a fourth optical element, and a fifth optical element,
- wherein the first optical element has an object-side surface being concave in a paraxial region thereof, the first optical element comprises a reflective surface, a sum of axial thicknesses of the first optical element, the second optical element, the third optical element, the fourth optical element, and the fifth optical element along the optical path is ΣCT, an axial thickness of the first optical element along the optical path is CT1, and the following condition is satisfied:
- ΣCT/CT1<3.0.
An imaging optical lens assembly, comprising a plurality of optical elements with refractive power,
- wherein at least one of the optical elements with refractive power comprises a reflective surface, is made of cyclo olefin polymer material, and has an object-side surface being concave in a paraxial region thereof.
Dependencies are inferred from the claim text.