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公开(公告)号:US20230073044A1
公开(公告)日:2023-03-09
申请号:US17820604
申请日:2022-08-18
Applicant: LARGAN PRECISION CO., LTD.
Inventor: Wen-Yu TSAI , Chien-Pang CHANG , Cheng-Yu TSAI , Chun-Hung TENG , Kuo-Chiang CHU
Abstract: An optical imaging lens assembly includes at least one optical lens element. The optical lens element includes an anti-reflective coating, and the anti-reflective coating is arranged on at least one surface of the optical lens element. The anti-reflective coating includes a high-low refractive coating and a gradient refractive coating, and the high-low refractive coating is arranged between the optical lens element and the gradient refractive coating. The high-low refractive coating includes at least one high refractive coating layer and at least one low refractive coating layer, which are stacked in alternations. The low refractive coating layer is in contact with the optical lens element. The gradient refractive coating includes a plurality of holes, and the holes away from the optical lens element are relatively larger than the holes close to the optical lens element.
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公开(公告)号:US20250123465A1
公开(公告)日:2025-04-17
申请号:US18515954
申请日:2023-11-21
Applicant: LARGAN PRECISION CO., LTD.
Inventor: Wei-Xiang FU , Yu-Chun KE , Cheng-Yu TSAI
Abstract: An optical imaging lens assembly includes nine lens elements which are, in order from an object side to an image side: a first lens element, a second lens element, a third lens element, a fourth lens element, a fifth lens element, a sixth lens element, a seventh lens element, an eighth lens element and a ninth lens element. The first lens element has negative refractive power. The second lens element with negative refractive power has an object-side surface being convex and an image-side surface being concave in a paraxial region thereof. The fourth lens element has an image-side surface being convex in a paraxial region thereof. The fifth lens element has positive refractive power. The sixth lens element has an image-side surface being concave in a paraxial region thereof. The eighth lens element with negative refractive power has an object-side surface being concave in a paraxial region thereof.
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公开(公告)号:US20250067960A1
公开(公告)日:2025-02-27
申请号:US18380978
申请日:2023-10-17
Applicant: LARGAN PRECISION CO., LTD.
Inventor: Po-Wei CHEN , Chun-Yen CHEN , Cheng-Yu TSAI
Abstract: An optical imaging lens assembly includes seven 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, a fifth lens element, a sixth lens element and a seventh lens element. Each of the seven lens elements has an object-side surface facing toward the object side and an image-side surface facing toward the image side. The second lens element has negative refractive power. The object-side surface of the third lens element is concave in a paraxial region thereof. The fourth lens element has positive refractive power. The image-side surface of the fifth lens element is concave in a paraxial region thereof. The sixth lens element has positive refractive power, and the image-side surface of the sixth lens element is convex in a paraxial region thereof.
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公开(公告)号:US20240012223A1
公开(公告)日:2024-01-11
申请号:US17900674
申请日:2022-08-31
Applicant: LARGAN PRECISION CO., LTD.
Inventor: Yu Jui LIN , Yu-Tai TSENG , Wei-Xiang FU , Cheng-Yu TSAI , Hsin-Hsuan HUANG
CPC classification number: G02B9/60 , G02B13/0065 , G02B13/0045 , H04N5/2253
Abstract: A photographing 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. The first lens element has positive refractive power. The second lens element has negative refractive power. When specific conditions are satisfied, the requirements of compact size and high image quality can be met by the photographing optical lens assembly, simultaneously.
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公开(公告)号:US20230375808A1
公开(公告)日:2023-11-23
申请号:US18193740
申请日:2023-03-31
Applicant: LARGAN PRECISION CO., LTD.
Inventor: Hsin-Hsuan HUANG , Cheng-Yu TSAI
CPC classification number: G02B13/0045 , G02B9/60 , G02B13/02
Abstract: An imaging system lens assembly includes five lens elements, the five lens elements 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 first lens element has positive refractive power, the object-side surface of the first lens element is convex in a paraxial region thereof.
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公开(公告)号:US20230305200A1
公开(公告)日:2023-09-28
申请号:US18187744
申请日:2023-03-22
Applicant: LARGAN PRECISION CO., LTD.
Inventor: Wen-Yu TSAI , Cheng-Yu TSAI , Chun-Hung TENG
CPC classification number: G02B5/0808 , G02B1/18 , G02B2207/101 , G02B13/0065
Abstract: An optical lens assembly includes at least one optical lens element and at least one optical element. At least one surface of the at least one optical lens element or the at least one optical element includes a low reflection layer, and the low reflection layer includes a rough layer, a nanocrystalline particle and a hydrophobic layer. The nanocrystalline particle is disposed between the rough layer and the hydrophobic layer, and the hydrophobic layer is farther away from the surface of the at least one optical lens element or the at least one optical element than the nanocrystalline particle. A material of the nanocrystalline particle at least includes SiO2.
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公开(公告)号:US20230228973A1
公开(公告)日:2023-07-20
申请号:US18060997
申请日:2022-12-02
Applicant: LARGAN PRECISION CO., LTD.
Inventor: Kuan-Ting YEH , Meng-Kuan CHO , Cheng-Yu TSAI
Abstract: An imaging optical system lens assembly includes six lens elements, which is, 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, a fifth lens element and a sixth lens element. The first lens element has negative refractive power, the object-side surface of the first lens element is concave in a paraxial region thereof, the image-side surface of the first lens element is convex in a paraxial region thereof. The second lens element has positive refractive power, the object-side surface of the second lens element is convex in a paraxial region thereof, the image-side surface of the second lens element is concave in a paraxial region thereof. The fifth lens element has positive refractive power.
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