Patents by Inventor Ju Sung Park
Ju Sung Park 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: 11966015Abstract: An optical imaging system includes a first lens, a second lens, a third lens, a fourth lens, a fifth lens, and a sixth lens sequentially arranged in numerical order from an object side of the optical imaging system toward an imaging plane of the optical imaging system and each having a refractive power, wherein an entire field of view of the optical imaging system is 50° or greater, and TTL/f<1.0, where TTL is a distance from an object-side surface of the first lens to the imaging plane, and f is an overall focal length of the optical imaging system.Type: GrantFiled: December 14, 2020Date of Patent: April 23, 2024Assignee: Samsung Electro-Mechanics Co., Ltd.Inventors: Ju Hwa Son, Jong Gi Lee, Yong Joo Jo, Ju Sung Park
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Publication number: 20240094512Abstract: An optical imaging system includes a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, and a seventh lens sequentially arranged along an optical axis from an object side toward an image side. The fifth lens has a positive refractive power, a focal length of the fifth lens is smaller than an overall focal length of the optical imaging system, and ?0.38?R10/f??0.32, where R10 is a radius of curvature of an image-side surface of the fifth lens and f is the overall focal length of the optical imaging system.Type: ApplicationFiled: November 29, 2023Publication date: March 21, 2024Applicant: Samsung Electro-Mechanics Co., Ltd.Inventors: Ju Hwa SON, In Gun KIM, Yong Joo JO, Ju Sung PARK
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Patent number: 11919999Abstract: Provided are a method for preparing a polyetherketoneketone and a polyetherketoneketone prepared thereby, wherein, at the time of a polymerization reaction, nitrogen gas is blown into a liquid reaction medium while stirring, thereby quickly removing hydrochloric acid, which is a by-product generated during the reaction, and preventing aggregation of resin particles, thus suppressing the generation of scales.Type: GrantFiled: November 16, 2018Date of Patent: March 5, 2024Assignee: HANWHA CHEMICAL CORPORATIONInventors: Kwang Seok Jeong, Min Sung Kim, Jae Heon Kim, Ju Young Park, Cho Hee Ahn, Byeong Hyeon Lee, Sang Hyun Cho
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Patent number: 11910078Abstract: A camera module includes a first lens module having a first lens barrel accommodating a first lens group, and a second lens module spaced apart from the first lens module in an optical axis direction, configured to be moveable in the optical axis direction, and having a second lens barrel accommodating a second lens group, the first lens barrel includes a first through-hole on one side and a first opening on the other side, the second lens barrel includes a second opening opposing the first opening on one side and a second through-hole on the other side, a diameter of the first opening is greater than a diameter of the first through-hole, and a diameter of the second opening is greater than a diameter of the second through-hole, and a light shielding member is disposed at one or more of the first opening and the second opening.Type: GrantFiled: August 28, 2020Date of Patent: February 20, 2024Assignee: Samsung Electro-Mechanics Co., Ltd.Inventors: Dong Shin Yang, Sot Eum Seo, Ju Sung Park
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Patent number: 11867885Abstract: An optical imaging system includes a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, and a seventh lens sequentially arranged along an optical axis from an object side toward an image side. The fifth lens has a positive refractive power, a focal length of the fifth lens is smaller than an overall focal length of the optical imaging system, and ?0.38?R10/f??0.32, where R10 is a radius of curvature of an image-side surface of the fifth lens and f is the overall focal length of the optical imaging system.Type: GrantFiled: April 22, 2022Date of Patent: January 9, 2024Assignee: Samsung Electro-Mechanics Co., Ltd.Inventors: Ju Hwa Son, In Gun Kim, Yong Joo Jo, Ju Sung Park
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Publication number: 20230359000Abstract: An optical imaging system includes a first lens which has refractive power, a second lens which has refractive power, a third lens which has a convex object-side surface, and an inflection point is formed on an image-side surface thereof, a fourth lens which has refractive power, a fifth lens which has a convex object-side surface, and a sixth lens which has refractive power and an inflection point is formed on an image-side surface thereof, and wherein the first to sixth lens are sequentially disposed from an object side.Type: ApplicationFiled: July 18, 2023Publication date: November 9, 2023Applicant: Samsung Electro-Mechanics Co., Ltd.Inventors: Jung Hui KO, Ju Hwa SON, Ju Sung PARK, Yong Joo JO
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Patent number: 11762164Abstract: A lens includes an optical portion refracting light, a rib extending along a circumference of at least a portion of the optical portion, a first area and a second area of an object-side surface of the rib, wherein the first area has a first surface roughness and the second area has a second surface roughness less rough than the first surface roughness, and a third area and a fourth area of an image-side surface of the rib, wherein the third area has a third surface roughness and the fourth area has a fourth surface roughness less rough than the third surface roughness, wherein the second area includes inclined surfaces.Type: GrantFiled: December 23, 2020Date of Patent: September 19, 2023Assignee: Samsung Electro-Mechanics Co., Ltd.Inventors: Dong Shin Yang, Ju Sung Park, Sot Eum Seo
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Patent number: 11747597Abstract: An optical imaging system includes a first lens which has refractive power, a second lens which has refractive power, a third lens which has a convex object-side surface, and an inflection point is formed on an image-side surface thereof, a fourth lens which has refractive power, a fifth lens which has a convex object-side surface, and a sixth lens which has refractive power and an inflection point is formed on an image-side surface thereof, and wherein the first to sixth lens are sequentially disposed from an object side.Type: GrantFiled: October 27, 2021Date of Patent: September 5, 2023Assignee: Samsung Electro-Mechanics Co., Ltd.Inventors: Jung Hui Ko, Ju Hwa Son, Ju Sung Park, Yong Joo Jo
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Patent number: 11703655Abstract: A lens assembly includes a lens including an optical portion to refract light and a flange portion extended along a periphery of at least a portion of the optical portion, and a lens barrel to accommodate the lens. The flange portion has a non-circular shape and includes a first di-cut portion on a first side surface of the flange portion, a second di-cut portion on a second side surface of the flange portion, and arc portions connecting the first di-cut portion and the second di-cut portion. A first distance between the first di-cut portion and an optical axis of the lens and a second distance between the second di-cut portion and the optical axis of the lens are smaller than a distance between respective opposite ends of the arc portions and the optical axis.Type: GrantFiled: April 2, 2021Date of Patent: July 18, 2023Assignee: Samsung Electro-Mechanics Co., Ltd.Inventors: Dong Shin Yang, In Gun Kim, Ju Sung Park, Sot Eum Seo
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Patent number: 11640100Abstract: A camera module includes a barrel defining a hole to receive light reflected from a subject, and defining a lens accommodation space to accommodate a plurality of lenses, a front lens accommodated in the lens accommodation space and disposed closest to the subject, a rear lens accommodated in the lens accommodation space and disposed closest to an imaging plane, and an intermediate lens disposed between the front lens and the rear lens. An inlet is defined in a side surface of the barrel, the inlet is connected to the lens accommodation space, and an adhesive bonding the intermediate lens to the barrel is disposed in the inlet.Type: GrantFiled: July 22, 2020Date of Patent: May 2, 2023Assignee: Samsung Electro-Mechanics Co., Ltd.Inventors: Jong Gi Lee, Jin Se Kim, Ju Sung Park
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Patent number: 11609361Abstract: A lens assembly includes a lens including an optical portion refracting light and a flange portion extending along a portion of a circumference of the optical portion, a blocking member disposed in front of the lens and having an opening to allow light to be incident on the lens, and a lens barrel accommodating the lens. The optical portion is noncircular and a portion of the blocking member facing the optical portion in an optical axis direction is located to be higher than a portion of the blocking member facing the flange portion in the optical axis direction.Type: GrantFiled: June 15, 2022Date of Patent: March 21, 2023Assignee: Samsung Electro-Mechanics Co., Ltd.Inventors: Dong Shin Yang, Tae Su Choi, Sot Eum Seo, Ju Sung Park
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Publication number: 20220413282Abstract: A spacer includes an outer circumferential surface in contact with a lens barrel, and an inner circumferential surface forming a hole for controlling an amount of light, a first length of the hole in a first direction, intersecting an optical axis, and a second length of the hole in a second direction, intersecting the optical axis, are different from each other, and a first distance from the outer circumferential surface to the inner circumferential surface, extended in the first direction, is less than a second distance from the outer circumferential surface to the inner circumferential surface, extended in the second direction.Type: ApplicationFiled: August 30, 2022Publication date: December 29, 2022Applicant: Samsung Electro-Mechanics Co., Ltd.Inventors: Dong Shin YANG, In Gun KIM, Sot Eum SEO, Ju Sung PARK
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Patent number: 11460692Abstract: A spacer includes an outer circumferential surface in contact with a lens barrel, and an inner circumferential surface forming a hole for controlling an amount of light, a first length of the hole in a first direction, intersecting an optical axis, and a second length of the hole in a second direction, intersecting the optical axis, are different from each other, and a first distance from the outer circumferential surface to the inner circumferential surface, extended in the first direction, is less than a second distance from the outer circumferential surface to the inner circumferential surface, extended in the second direction.Type: GrantFiled: January 28, 2020Date of Patent: October 4, 2022Assignee: Samsung Electro-Mechanics Co., Ltd.Inventors: Dong Shin Yang, In Gun Kim, Sot Eum Seo, Ju Sung Park
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Publication number: 20220308267Abstract: A lens assembly includes a lens including an optical portion refracting light and a flange portion extending along a portion of a circumference of the optical portion, a blocking member disposed in front of the lens and having an opening to allow light to be incident on the lens, and a lens barrel accommodating the lens. The optical portion is noncircular and a portion of the blocking member facing the optical portion in an optical axis direction is located to be higher than a portion of the blocking member facing the flange portion in the optical axis direction.Type: ApplicationFiled: June 15, 2022Publication date: September 29, 2022Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.Inventors: Dong Shin YANG, Tae Su CHOI, Sot Eum SEO, Ju Sung PARK
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Publication number: 20220252830Abstract: An optical imaging system includes a first lens, a second lens, a third lens, a fourth lens, a fifth lens, and a sixth lens sequentially disposed from an object side. The third lens and the sixth lens have positive refractive power, and an f-number (F No.) of the optical imaging system is 1.7 or less.Type: ApplicationFiled: April 26, 2022Publication date: August 11, 2022Applicant: Samsung Electro-Mechanics Co., Ltd.Inventors: Ju Hwa SON, Ki Jin NAM, Ju Sung PARK, Yong Joo JO
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Publication number: 20220244506Abstract: An optical imaging system includes a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, and a seventh lens sequentially arranged along an optical axis from an object side toward an image side. The fifth lens has a positive refractive power, a focal length of the fifth lens is smaller than an overall focal length of the optical imaging system, and ?0.38?R10/f??0.32, where R10 is a radius of curvature of an image-side surface of the fifth lens and f is the overall focal length of the optical imaging system.Type: ApplicationFiled: April 22, 2022Publication date: August 4, 2022Applicant: Samsung Electro-Mechanics Co., Ltd.Inventors: Ju Hwa SON, In Gun KIM, Yong Joo JO, Ju Sung PARK
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Patent number: 11391868Abstract: A lens assembly includes a lens including an optical portion refracting light and a flange portion extending along a portion of a circumference of the optical portion, a blocking member disposed in front of the lens and having an opening to allow light to be incident on the lens, and a lens barrel accommodating the lens. The optical portion is noncircular and a portion of the blocking member facing the optical portion in an optical axis direction is located to be higher than a portion of the blocking member facing the flange portion in the optical axis direction.Type: GrantFiled: January 7, 2021Date of Patent: July 19, 2022Assignee: Samsung Electro-Mechanics Co., Ltd.Inventors: Dong Shin Yang, Tae Su Choi, Sot Eum Seo, Ju Sung Park
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Patent number: 11347028Abstract: An optical imaging system includes a first lens, a second lens, a third lens, a fourth lens, a fifth lens, and a sixth lens sequentially disposed from an object side. The third lens and the sixth lens have positive refractive power, and an f-number (F No.) of the optical imaging system is 1.7 or less.Type: GrantFiled: August 28, 2018Date of Patent: May 31, 2022Assignee: Samsung Electro-Mechanics Co., Ltd.Inventors: Ju Hwa Son, Ki Jin Nam, Ju Sung Park, Yong Joo Jo
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Patent number: 11340429Abstract: An optical imaging system includes a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, and a seventh lens sequentially arranged along an optical axis from an object side toward an image side. The fifth lens has positive refractive power, a focal length of the fifth lens is smaller than an overall focal length of the optical imaging system, and ?0.38?R10/f??0.32, where R10 is a radius of curvature of an image-side surface of the fifth lens and f is the overall focal length of the optical imaging system.Type: GrantFiled: November 12, 2018Date of Patent: May 24, 2022Assignee: Samsung Electro-Mechanics Co., Ltd.Inventors: Ju Hwa Son, In Gun Kim, Yong Joo Jo, Ju Sung Park
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Patent number: 11330159Abstract: A mobile device and lens module including a lens barrel and a plurality of lenses sequentially stacked from an object side to an image side in the lens barrel, wherein the plurality of lenses includes one or more D-cut lenses having respective straight line rim portions, and wherein a straight line portion of a D-cut lens, of the one or more D-cut lenses, overlaps an image sensor for imaging light passing through the plurality of lenses.Type: GrantFiled: September 23, 2020Date of Patent: May 10, 2022Assignee: Samsung Electro-Mechanics Co., Ltd.Inventors: Dong Shin Yang, In Do Seo, Ju Sung Park, Sot Eum Seo