Maschoff Brennan
Imaging optical lens system, image capturing unit and electronic device
An imaging optical lens system includes seven lens elements which are, 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, a sixth lens element and a seventh lens element. Each of the seven lens elements has an object-side surface facing toward the object side and an image-side surface facing toward the image side. The object-side surface of the first lens element is convex in a paraxial region thereof. The second lens element has positive refractive power. The third lens element has negative refractive power. At least one surface among the object-side surfaces and the image-side surfaces of the seven lens elements has at least one critical point in an off-axis region thereof.
LARGAN PRECISION CO., LTD.
G G G
G02B G02B G02B
inventional inventional additional
Hung-Shuo Tzu-Chieh
Chen Kuo