Patent ID: 11921262
Assignee: LARGAN PRECISION CO., LTD.
Field: Optics (Instruments)
Classification: CPC G  H | IPC G  H

Claim 0:
1. An image capturing lens assembly comprising five lens elements, the five 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 and a fifth lens element; each of the five lens elements having an object-side surface facing toward the object side and an image-side surface facing toward the image side;
wherein the first lens element has positive refractive power; one of the five lens elements with positive refractive power has an Abbe number smaller than 30; the first lens element has greatest refractive power among the five lens elements;
wherein a central thickness of the first lens element is larger than a central thickness of the fifth lens element
wherein a total number of the lens elements in the image capturing lens assembly is five, an entrance pupil diameter of the image capturing lens assembly is EPD, a maximum image height of the image capturing lens assembly is ImgH, a refractive index of the first lens element is N1, a refractive index of the second lens element is N2, a refractive index of the third lens element is N3, a refractive index of the fourth lens element is N4, a refractive index of the fifth lens element is N5, a maximum of N1, N2, N3, N4 and N5 is Nmax, and the following relationships are satisfied:

0.7<EPD/ImgH<2.0; and

1.65≤N max <1.70.