Kolen Co., Ltd.

Ace Solutech Co., Ltd.

Chi Ho An

Pil Sun Jung

Jae Hoon Cho

Dong Young Kim

Ji Eun Kim

Chan Goo Kang

Hyong Bae Park

Hyoung Bae Park

Disclosed is a photographic optical lens system. The disclosed photographic optical lens system includes a stop, a lens group including at least one aspherical lens, and an image sensor configured to record an image transmitted through the lens group, wherein the photographic optical lens system satisfies the following Expression:0.15&#x2264;()/&#x2264;0.4&#x2003;&#x2003;&#x3c;Expression&#x3e;where Din Expression denotes a distance from a center of a first surface of a lens closest to an object (hereinafter, referred to as a first lens) to a center of a second surface of a second lens arranged directly next to the first lens, and OAL denotes a distance (a total length of the lens group) from the center of the first surface of the first lens to a center of a second surface of a lens arranged farthest from the object.

Optical lens system

Provided is a photographing lens optical system. The lens optical system includes a first lens, a second lens, a third lens, a fourth lens, and a fifth lens sequentially arranged from an object to an image sensor. The first lens may have a negative (&#x2212;) refractive power and have an exit surface that is concave with respect to the image sensor. The lens optical system may satisfy at least one of a condition 100&#xb0;&#x3c;FOV&#x3c;200&#xb0; and a condition 1&#x3c;TTL/ImgH&#x3c;2. Herein, FOV denotes an angle of view of the lens optical system, TTL denotes a distance from an incidence surface of the first lens to the image sensor, and ImgH denotes a diagonal length of a maximum pixel region of the image sensor.

Photographing lens optical system

Provided are a lens optical system and an imaging device including the lens optical system. The lens optical system includes first to sixth lenses sequentially arranged from an object side toward an image plane side. The first to sixth lenses have negative, positive, positive, negative, positive, and negative refractive powers, respectively. The lens optical system may satisfy 100&#x2264;FOV&#x2264;160, and DiaL3&#x2264;DiaL1&#x2264;DiaL6 where FOV refers to the field of view of the lens optical system in degrees (&#xb0;), and DiaL1, DiaL3, and DiaL6 refer to the effective diameters of the first lens, the third lens, and the sixth lens, respectively.

Lens optical system and imaging device

Provided are a super wide-angle lens and an imaging device including the same. The super wide-angle lens includes first to sixth lenses arranged from an object side toward an image plane side in this stated order and respectively having negative, positive, positive, negative, positive, and negative refractive powers. The super wide-angle lens may have a field of view of 100 degree or more.

Super wide-angle lens and imaging device including the same

In a lens optical system having first, second, and third lenses that are arranged between an object and an image sensor where an image of the object is formed, in order from an object side, the first lens has a positive (+) refractive power and is convex toward the object, the second lens has a negative (&#x2212;) refractive power and is convex toward the image sensor, and the third lens has a positive (+) refractive power and at least one of an incident surface and an exit surface of the third lens has at least one inflection point between a center portion and an edge thereof. The lens optical system satisfies the following inequality that 0.5&#x3c;f1/f&#x3c;0.8, in which f1 is a focal length of the first lens and f is a total focal length of the lens optical system.

Photographic lens optical system

A lens optical system including first, second, third, fourth, and fifth lenses that are sequentially arranged between an object and an image sensor on which an image of the object is formed. The first lens may have a positive refractive power and may be biconvex. The second lens may have a negative refractive power and may have a meniscus shape that is convex toward the object. The third lens may have a positive refractive power. The fourth lens may have a positive refractive power and may have a meniscus shape that is convex toward the image sensor. The fifth lens may have a negative refractive power, and at least one of an incident surface and an exit surface of the fifth lens may be an aspherical surface.

A lens optical system includes first, second, third, fourth, and fifth lenses that are arranged between an object and an image sensor where an image of the object is formed, in order from an object side, wherein the first lens has a positive (+) refractive power and an incident surface that is convex toward the object, the second lens has a negative (&#x2212;) refractive power and a meniscus shape that is convex toward the object, the third lens has a positive (+) refractive power and both convex surfaces, the fourth lens has a positive (+) refractive power and a meniscus shape that is convex toward the image sensor, and the fifth lens has a negative (&#x2212;) refractive power and an incident surface and an exit surface, at least one of the incident surface and the exit surface is an aspherical surface.

A lens optical system includes first, second, third, and fourth lenses that are arranged between an object and an image sensor, in order from an object side, wherein the first lens has positive refractive power and an incident surface that is convex toward the object, the second lens has negative refractive power and both surfaces of which are concave, the third lens has positive refractive power and a meniscus shape that is convex toward the image sensor, and the fourth lens has negative refractive power and at least one of an incident surface and an exit surface of which is an aspherical surface, wherein the system satisfies the inequality,3.0&#x3c;&#x3c;3.4,

A photographic lens optical system including: a first lens, a second lens, and a third lens sequentially arranged from a side of an object toward an image sensor, wherein the first lens has a positive (+) refractive power and an incident surface that is convex toward the object, the second lens has a negative (&#x2212;) refractive power and is convex toward the image sensor, the third lens has a negative (&#x2212;) refractive power, and at least one of an incident surface and an exit surface thereof is aspherical, and wherein an angle of view (&#x3b8;) of the lens optical system, and a focal length (f) of the lens optical system satisfy the following inequality:1.0&#x3c;|tan &#x3b8;|/&#x3c;2.0.

Growing community of inventors

Gyeonggi-do, South Korea

Chi Ho An