Largan Precision Co., Ltd.

Chung-Yu Wei

Wei-Yu Chen

Hung-Shuo Chen

Kuan-Chun Wang

Tzu-Chieh Kuo

Yi-Hsiang Chuang

Wen-Yao Yang

An image lens assembly includes five lens elements, which are, in order from an object side to an image side along an optical path, a first lens element, a second lens element, a third lens element, a fourth lens element and a fifth lens element. The first lens element has positive refractive power. The third lens element has negative refractive power. The fourth lens element with positive refractive power has an object-side surface being convex in a paraxial region thereof and an image-side surface being convex in a paraxial region thereof. The fifth lens element has an object-side surface being convex in a paraxial region thereof and an image-side surface being concave in a paraxial region thereof. The image-side surface of the fifth lens element includes at least one convex critical point in an off-axis region thereof.

Image lens assembly, imaging apparatus and electronic device

An imaging optical lens assembly includes five lens elements, which are, in order from an object side to an image side along an optical path, a first lens element, a second lens element, a third lens element, a fourth lens element and a fifth lens element. Each of the five lens elements has an object-side surface towards the object side and an image-side surface towards the image side. The third lens element has positive refractive power. At least one of the object-side surface and the image-side surface of at least one of the five lens elements includes at least one critical point in an off-axis region thereof.

Imaging optical lens assembly including five lenses +−++−, −++−, −−++−, +−+++, +++−+, +−+−+, +−+−−, or −++−+ of refractive powers, imaging apparatus and electronic device

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Taichung, Taiwan

Chung-Yu Wei