US 12,253,654 B2
Optical imaging lens assembly, image capturing device and electronic device
Cheng-Chen Lin, Taichung (TW); and Hsin-Hsuan Huang, Taichung (TW)
Assigned to LARGAN PRECISION CO., LTD., Taichung (TW)
Filed by LARGAN PRECISION CO., LTD., Taichung (TW)
Filed on Jul. 5, 2021, as Appl. No. 17/367,489.
Application 17/367,489 is a continuation of application No. 16/380,096, filed on Apr. 10, 2019, granted, now 11,092,784.
Application 16/380,096 is a continuation of application No. 15/211,078, filed on Jul. 15, 2016, granted, now 10,310,223, issued on Jun. 4, 2019.
Claims priority of application No. 105111883 (TW), filed on Apr. 15, 2016.
Prior Publication US 2021/0333519 A1, Oct. 28, 2021
Int. Cl. G02B 9/62 (2006.01); G02B 13/00 (2006.01); G02B 27/00 (2006.01)
CPC G02B 13/0045 (2013.01) [G02B 9/62 (2013.01); G02B 27/0025 (2013.01)] 22 Claims
OG exemplary drawing
 
1. 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, a third lens element, a fourth lens element, a fifth lens element and a sixth lens element;
wherein each of the six lens elements has an object-side surface facing towards the object side and an image-side surface facing towards the image side;
wherein the first lens element has positive refractive power; the second lens element has positive refractive power; the object-side surface of the fifth lens element is convex in a paraxial region thereof, the image-side surface of the fifth lens element is concave in a paraxial region thereof and comprises at least one inflection point in an off-axis region thereof; the image-side surface of the sixth lens element is convex in a paraxial region thereof;
wherein a total number of lens elements in the optical imaging lens assembly is six; a focal length of the second lens element is f2, a focal length of the third lens element is f3, a curvature radius of the object-side surface of the third lens element is R5, a curvature radius of the image-side surface of the third lens element is R6, 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 refractive index of the sixth lens element is N6, a maximum of N1, N2, N3, N4, N5 and N6 is Nmax, and the following conditions are satisfied:
|f3|<|f2|;
0.50<(R5+R6)/(R5−R6)<2.50; and
1.60<Nmax<1.72.