US 9,810,882 B2
Optical lens
Jung-Yao Chen, New Taipei (TW); Yu-Min Chang, New Taipei (TW); Yun-Yi Lin, New Taipei (TW); and Chun-Lin Huang, New Taipei (TW)
Assigned to ABILITY ENTERPRISE CO., LTD, New Taipei (TW)
Filed by ABILITY ENTERPRISE CO., LTD, New Taipei (TW)
Filed on Jun. 23, 2016, as Appl. No. 15/190,200.
Claims priority of application No. 104120513 A (TW), filed on Jun. 25, 2015.
Prior Publication US 2016/0377839 A1, Dec. 29, 2016
Int. Cl. G02B 13/18 (2006.01); G02B 3/02 (2006.01); G02B 13/00 (2006.01); G02B 9/64 (2006.01)
CPC G02B 13/0045 (2013.01) [G02B 9/64 (2013.01)] 18 Claims
OG exemplary drawing
 
1. An optical lens, from an object side to an image side, comprising:
a first lens having a negative refractive power;
a second lens having a refractive power;
a third lens having a refractive power;
a fourth lens having a positive refractive power;
a fifth lens having a refractive power;
a sixth lens having a refractive power; and
a seventh lens having a negative refractive power;
wherein the second lens has a positive refractive power, the third lens has a negative refractive power, the fifth lens has a positive refractive power, and the sixth lens has a negative refractive power; or, the second lens has a negative refractive power, the third lens has a positive refractive power, the fifth lens has a negative refractive power, and the sixth lens has a positive refractive power; wherein an image-side surface of the seventh lens has an inflection point, a distance from the inflection point to an optical axis is h14, a radius of the seventh lens is H14, and 0.5≤|h14/H14| and/or |h14/H14|≤0.8.