US 11,656,438 B2
Mobile device and optical imaging lens thereof
Shih Han Chen, Taichung (TW); Hung Chien Hsieh, Taichung (TW); and Long Ye, Xiamen (CN)
Assigned to Genius Electronic Optical Co., Ltd., Taichung (TW)
Filed by Genius Electronic Optical Co., Ltd., Taichung (TW)
Filed on Feb. 22, 2021, as Appl. No. 17/181,587.
Application 17/181,587 is a continuation of application No. 16/417,239, filed on May 20, 2019, granted, now 10,969,567.
Application 16/417,239 is a continuation of application No. 15/092,436, filed on Apr. 6, 2016, granted, now 10,345,553, issued on Jul. 9, 2019.
Application 15/092,436 is a continuation of application No. 14/194,123, filed on Feb. 28, 2014, granted, now 9,341,819, issued on May 17, 2016.
Claims priority of application No. 201310403008.8 (CN), filed on Sep. 6, 2013.
Prior Publication US 2021/0247595 A1, Aug. 12, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. G02B 13/00 (2006.01); G02B 9/62 (2006.01); G02B 27/00 (2006.01)
CPC G02B 13/0045 (2013.01) [G02B 9/62 (2013.01); G02B 27/0025 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An optical imaging lens, comprising sequentially from an object side to an image side along an optical axis, first, second, third, fourth, fifth, and sixth lens elements, each of the lens elements having an object-side surface facing toward the object side and an image-side surface facing toward the image side, wherein:
the image-side surface of the first lens element comprises a concave portion in a vicinity of a periphery of the first lens element; and
the optical imaging lens as a whole has only the six lens elements,
wherein Fno is an f-number of the optical imaging lens, T2 is a central thickness of the second lens element along the optical axis, T4 is a central thickness of the fourth lens element along the optical axis, T1 is a central thickness of the first lens element along the optical axis, and Fno, T2, T4 and T1 satisfy the equations:
2.443≤Fno/T2≤4.253;
Fno/T4≤5.90; and
Fno/T1≤5.80.