Maschoff Brennan
Optical lens assembly comprising seventh lenses of −++−−+− or +++−−+− refractive powers, image capturing unit and electronic device
An optical lens assembly includes seven lens elements which are, in order from object side to image side: first lens element, second lens element, third lens element, fourth lens element, fifth lens element, sixth lens element and seventh lens element. The first lens element has object-side surface having at least one convex shape in off-axis region thereof. The second lens element with positive refractive power has object-side surface being convex in paraxial region thereof. The third lens element has image-side surface being convex in paraxial region thereof. The sixth lens element with positive refractive power has object-side surface being convex in paraxial region thereof. The seventh lens element has image-side surface being concave in paraxial region thereof, and the image-side surface of the seventh lens element has at least one convex critical point in off-axis region thereof. The optical lens assembly has a total of seven lens elements.
LARGAN PRECISION CO., LTD.
G G
G02B G02B
inventional inventional
Yu-Tai Hung-Shuo Wei-Yu Chun-Che
Tseng Chen Chen Hsueh