Asia Optical Co., Ltd.

Sintai Optical (shenzhen) Co., Ltd.

Ching-Chung Yeh

An-Kai Chang

A wide-angle lens assembly includes a first, second, third, fourth, fifth, sixth, seventh, eighth, and ninth lenses. The first and second lenses are with negative refractive power and include a convex surface facing an object side and a concave surface facing an image side respectively. The third lens is a biconcave lens with negative refractive power. The fourth and fifth lenses are biconvex lenses with positive refractive power. The sixth lens is with positive refractive power and includes a convex surface facing the image side. The seventh lens is with negative refractive power and includes a concave surface facing the object side. The eighth lens is with positive refractive power and includes a convex surface facing the object side. The ninth lens is with positive refractive power and includes a concave surface facing the object side and a convex surface facing the image side.

Wide-angle lens assembly

A photographing lens includes a first lens, a second lens, a third lens, a fourth lens, and a fifth lens in order from an object side to an image side along an optical axis. The first lens is a meniscus lens with negative refractive power. The second lens is a lens with negative refractive power, in which an image-side surface of the second lens is concave. The third lens is a lens with positive refractive power, in which an image-side surface of the third lens is convex. The fourth lens is a lens with positive refractive power. The fifth lens is a lens with negative refractive power, in which an object-side surface of the fifth lens is concave. The photographing lens has an excellent image resolving ability.

Photographing lens

A telephoto lens assembly comprises sequentially from an object side to an image side along an optical axis a first lens, a second lens, a stop, a third lens, a fourth lens, a fifth lens and a sixth lens. The first lens has negative refractive power and includes a convex surface facing the object side. The second lens has negative refractive power and includes a convex surface facing the image side. The third lens has positive refractive power. The fourth lens has refractive power. The fifth lens has refractive power. The sixth lens has positive refractive power. The fourth lens and the fifth lens are cemented.

Telephoto lens assembly

A lens assembly includes a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens and a seventh lens, all of which are arranged in sequence from an object side to an image side along an optical axis. The first lens is a meniscus lens with negative refractive power and includes a convex surface facing the object side. The second lens is with negative refractive power and includes a concave surface facing the object side. The third lens is with positive refractive power and includes a convex surface facing the image side. The fourth lens is with positive refractive power. The fifth lens is with positive refractive power. The sixth lens is with negative refractive power. The seventh lens is with refractive power.

Lens assembly

A panoramic lens assembly includes a first lens assembly which includes a first lens group, a first prism and a second lens group, all of which are arranged in order from a first object side to a first image side along a first optical axis. The first lens group is with negative refractive power and includes a first and a second lens. The first prism includes a first incident surface, a first reflective surface and a first exit surface. The second lens group is with positive refractive power and includes a third, a fourth, a fifth, a sixth and a seventh lens. The first lens assembly satisfies: 0.2&#x2264;TTL/&#x3b8;&#x2264;0.4, wherein TTLis an interval in mm from an object surface of the first lens to a first image plane along the first optical axis and &#x3b8;is a half maximum field of view in degree for the first lens assembly.

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Taichung, Taiwan

Ching-Chung Yeh