Patents by Inventor Hwan-seon Lee
Hwan-seon Lee has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 10627607Abstract: Provided are an optical lens assembly and an electronic apparatus including the same. The optical lens assembly implements a wide-angle lens system by including a first lens group having positive refractive power, an iris diaphragm, and a second lens group having positive refractive power, where the first lens group, the iris diaphragm, and the second lens group are arranged from an object side to an image side, and the first lens group includes at least one negative lens and two positive lenses.Type: GrantFiled: February 6, 2018Date of Patent: April 21, 2020Assignee: Samsung Electronics Co., Ltd.Inventors: Hwan-seon Lee, Chang-han Kim, Young-woo Park
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Patent number: 10473894Abstract: An optical system may include: a first lens having positive refractive power facing an object, the first lens having a first convex face facing the object; a second lens having positive refractive power, the second lens having a second convex face facing the object; a third lens having negative refractive power, the third lens having a third concave face facing an image sensor; a fourth lens adjacent to the third lens; a fifth lens adjacent to the fourth lens, the fifth lens having a fourth face facing the object, the fourth face being convex where the fifth lens intersects the optical axis; and a sixth lens adjacent to the fifth lens. The characteristics of the optical system satisfy equation, 0.4<f/f2<1/6 (Here, “f” represents a focal distance of the optical system, and “f2” represents the focal distance of the second lens).Type: GrantFiled: November 1, 2016Date of Patent: November 12, 2019Assignee: Samsung Electronics Co., Ltd.Inventors: Min Heu, Jung-Pa Seo, Hyun-Jea Kim, Yong-Jae Lee, Hwan-Seon Lee
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Publication number: 20180239117Abstract: Provided are an optical lens assembly and an electronic apparatus including the same. The optical lens assembly implements a wide-angle lens system by including a first lens group having positive refractive power, an iris diaphragm, and a second lens group having positive refractive power, where the first lens group, the iris diaphragm, and the second lens group are arranged from an object side to an image side, and the first lens group includes at least one negative lens and two positive lenses.Type: ApplicationFiled: February 6, 2018Publication date: August 23, 2018Inventors: Hwan-seon LEE, Chang-han KIM, Young-woo PARK
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Patent number: 9823443Abstract: An imaging lens is provided. The imaging lens includes, in an order from an object side to an image plane side, a first lens having an object side surface that is convex and having a positive refractive power, a second lens having a positive or negative refractive power, a third lens having a positive or negative refractive power, a fourth lens having a negative refractive power, and a fifth lens having a positive or negative refractive power, wherein an image side surface of the fifth lens has a concave center portion and has at least one inflection point, and the imaging lens satisfies a condition that ?0.25?(Y?yp)/yp??0.05, where Y denotes an image height of a real chief ray, and yp denotes an image height of a paraxial chief ray.Type: GrantFiled: March 14, 2016Date of Patent: November 21, 2017Assignee: Samsung Electronics Co., Ltd.Inventors: Hwan-seon Lee, Tae-youn Lee
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Publication number: 20170123187Abstract: According to one or more embodiments of the present disclosure, an optical system may include: a first lens having a positive refractive power and disposed along an optical axis and to face an object, the first lens further having a first convex face facing the object; a second lens having a positive refractive power and disposed along the optical axis adjacent to the first lens, the second lens further having a second convex face facing the object; a third lens having a negative refractive power and disposed along the optical axis adjacent to the second lens, the third lens further having a third concave face facing an image sensor; a fourth lens disposed along the optical axis adjacent to the third lens, the fourth lens being an aspherical lens; a fifth lens disposed along the optical axis adjacent to the fourth lens, the fifth lens being an aspherical lens and having a fourth face facing the object, the fourth face being convex where the fifth lens intersects the optical axis; and a sixth lens disposed aloType: ApplicationFiled: November 1, 2016Publication date: May 4, 2017Inventors: Min HEU, Jung-Pa SEO, Hyun-Jea KIM, Yong-Jae LEE, Hwan-Seon LEE
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Patent number: 9519125Abstract: A zoom lens and a photographing apparatus including the zoom lens are provided. The zoom lens includes a first lens group having a positive refractive power, a second lens group having a negative refractive power, a third lens group having a positive refractive power, and a fourth lens group having a positive refractive power, all of which are arranged sequentially from an object side to an image side. The second lens group may include a first negative lens, a second negative lens, and a first positive lens. The second lens group may also satisfy 5.6?|fG2n2/fw|?10.0, where fG2n2 is a focal length of the second negative lens therein and fw is an overall focal length of the zoom lens at a wide-angle position.Type: GrantFiled: October 1, 2013Date of Patent: December 13, 2016Assignee: Samsung Electronics Co., Ltd.Inventors: Hwan-seon Lee, Jung-hyun Lee
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Publication number: 20160274334Abstract: An imaging lens is provided. The imaging lens includes, in an order from an object side to an image plane side, a first lens having an object side surface that is convex and having a positive refractive power, a second lens having a positive or negative refractive power, a third lens having a positive or negative refractive power, a fourth lens having a negative refractive power, and a fifth lens having a positive or negative refractive power, wherein an image side surface of the fifth lens has a concave center portion and has at least one inflection point, and the imaging lens satisfies a condition that ?0.25?(Y?yp)/yp??0.05, where Y denotes an image height of a real chief ray, and yp denotes an image height of a paraxial chief ray.Type: ApplicationFiled: March 14, 2016Publication date: September 22, 2016Inventors: Hwan-seon LEE, Tae-youn LEE
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Publication number: 20140185146Abstract: A zoom lens and a photographing apparatus including the zoom lens are provided. The zoom lens includes a first lens group having a positive refractive power, a second lens group having a negative refractive power, a third lens group having a positive refractive power, and a fourth lens group having a positive refractive power, all of which are arranged sequentially from an object side to an image side. The second lens group may include a first negative lens, a second negative lens, and a first positive lens. The second lens group may also satisfy 5.6?|fG2n2/fw|?10.0, where fG2n2 is a focal length of the second negative lens therein and fw is an overall focal length of the zoom lens at a wide-angle position.Type: ApplicationFiled: October 1, 2013Publication date: July 3, 2014Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Hwan-seon Lee, Jung-hyun Lee
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Patent number: 8736970Abstract: An optical system of a zoom lens is provided. The optical system of the zoom lens includes thirteen lenses which are divided into four lens groups, wherein: the zoom lens comprises in a following order from a subject: a first lens group which has a positive refractive index; a second lens group which has a negative refractive index, and moves along an optical axis; a third lens group which has a positive refractive index; and a fourth lens group which has a positive refractive index, wherein the first lens group comprises four lenses, and an external surface of a first lens is concave in a direction of a plane of an image; the third lens group comprises two meniscus lenses which are concave toward an image plane, and is made with capability of cross-section displacement relative to an optical axis; and the fourth lens group is convex-concave glued lens.Type: GrantFiled: October 8, 2010Date of Patent: May 27, 2014Assignee: Samsung Electronics Co., LtdInventors: Jin-seon Seo, Hwan-seon Lee, Arkhipova Lyudmila Nikolaevna, Gal'pern Lyudmila Aleksandrovna
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Publication number: 20110122507Abstract: An optical system of a zoom lens is provided. The optical system of the zoom lens includes thirteen lenses which are divided into four lens groups, wherein: the zoom lens comprises in a following order from a subject: a first lens group which has a positive refractive index; a second lens group which has a negative refractive index, and moves along an optical axis; a third lens group which has a positive refractive index; and a fourth lens group which has a positive refractive index, wherein the first lens group comprises four lenses, and an external surface of a first lens is concave in a direction of a plane of an image; the third lens group comprises two meniscus lenses which are concave toward an image plane, and is made with capability of cross-section displacement relative to an optical axis; and the fourth lens group is convex-concave glued lens.Type: ApplicationFiled: October 8, 2010Publication date: May 26, 2011Applicant: Samsung Electronics Co., Ltd.Inventors: Jin-seon SEO, Hwan-seon Lee, Arkhioova Lyudmila Nikolaevna, Gal'pern Lyudmila Aleksandrovna
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Patent number: 7663809Abstract: A compact zoom lens including in an order from an object side to an image side, a first lens group having a negative refractive power, a second lens group having a positive refractive power, and a third lens group having a positive refractive power, wherein the first lens group includes two lens, the second lens group includes three lens, and the third lens group includes a single lens, wherein, during zooming from wide angle to telephoto, the distance between the first and second lens groups decreases, the distance between the second and third lens groups increases, and the third lens group moves toward the image side, and wherein the following mathematical inequalities are satisfied: 0.85 < LII f ? ? ? × f ? ? t < 1.0 0.3 < tII f ? ? ? × f ? ? t < 0.Type: GrantFiled: December 16, 2008Date of Patent: February 16, 2010Assignee: Samsung Digital Imaging Co., Ltd.Inventor: Hwan-seon Lee
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Publication number: 20090195887Abstract: A compact zoom lens including in an order from an object side to an image side, a first lens group having a negative refractive power, a second lens group having a positive refractive power, and a third lens group having a positive refractive power, wherein the first lens group includes two lens, the second lens group includes three lens, and the third lens group includes a single lens, wherein, during zooming from wide angle to telephoto, the distance between the first and second lens groups decreases, the distance between the second and third lens groups increases, and the third lens group moves toward the image side, and wherein the following mathematical inequalities are satisfied: 0.85 < LII f ? ? ? × f ? ? t < 1.0 0.3 < tII f ? ? ? × f ? ? t < 0.Type: ApplicationFiled: December 16, 2008Publication date: August 6, 2009Applicant: Samsung Techwin Co., Ltd.Inventor: Hwan-seon Lee