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公开(公告)号：US20220196881A1
公开(公告)日：2022-06-23
申请号：US17553939
申请日：2021-12-17
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Wen-Yu TSAI , Chien-Pang CHANG , Chi-Wei CHI , Wei-Fong HONG , Chun-Hung TENG , Kuo-Chiang CHU
IPC: G02B1/115
Abstract: An optical lens assembly includes, from an object side to an image side, at least four optical lens elements. At least one of the at least four optical lens elements includes an anti-reflective coating. The at least one optical lens element including the anti-reflective coating is made of a plastic material. The anti-reflective coating is arranged on an object-side surface or an image-side surface of the at least one optical lens element including the anti-reflective coating. The anti-reflective coating includes at least one coating layer. One of the at least one coating layer at the outer of the anti-reflective coating is made of ceramics. The anti-reflective coating includes a plurality of holes, and sizes of the plurality of holes adjacent to the outer of the anti-reflective coating are larger than sizes of the plurality of holes adjacent to the inner of the anti-reflective coating.
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公开(公告)号：US20250102778A1
公开(公告)日：2025-03-27
申请号：US18964632
申请日：2024-12-01
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Chien-Pang CHANG , Pei-Chi CHANG , Chun-Hung TENG
Abstract: An optical lens assembly includes at least two optical lens elements. At least one of the optical lens elements includes a long wavelength absorbing material, the optical lens element including the long wavelength absorbing material is made of a plastic material, and the long wavelength absorbing material is evenly mixed with the plastic material. At least one of the optical lens elements includes a long wavelength filter coating, the optical lens element including the long wavelength filter coating is made of a plastic material, and the long wavelength filter coating is arranged on an object-side surface or an image-side surface of the optical lens element. The long wavelength filter coating includes a plurality of high refractive index coating layers and a plurality of low refractive index coating layers, and the high refractive index coating layers and the low refractive index coating layers are stacked in alternations.
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公开(公告)号：US20250028102A1
公开(公告)日：2025-01-23
申请号：US18752945
申请日：2024-06-25
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Wen-Yu TSAI , Pei-Chi CHANG , Yu Jie HONG , Chun-Hung TENG
Abstract: An optical lens assembly includes at least four optical lens elements being, in order from an object side of the optical lens assembly to an image side thereof, a first optical lens element, a second optical lens element, a third optical lens element and a fourth optical lens element. At least one of the at least four optical lens elements is a filter lens element, the filter lens element includes a near-infrared light filter coating membrane, the filter lens element is made of a glass material, and the filter lens element has at least one aspheric surface. The near-infrared light filter coating membrane includes at least one low refractive index layer and at least one high refractive index layer, and the near-infrared light filter coating membrane is formed by alternately stacking the at least one high refractive index layer and the at least one low refractive index layer.
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公开(公告)号：US20240061150A1
公开(公告)日：2024-02-22
申请号：US18495823
申请日：2023-10-27
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Wen-Yu TSAI , Hsiang-Chi TANG , Yu Jie HONG , Chun-Hung TENG
CPC classification number: G02B1/041 , G02B1/115 , G02B3/04 , G02B5/208 , G02B13/008
Abstract: An optical lens assembly includes at least one optical element. At least one of the at least one optical element includes a multi-layer coating membrane, and the multi-layer coating membrane is formed by alternately stacking high refractive index layers and low refractive index layers. The multi-layer coating membrane is a dual-bandpass filtering membrane.
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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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Patent Agency Ranking
公开(公告)号：US20190317253A1
公开(公告)日：2019-10-17
申请号：US16378709
申请日：2019-04-09
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Yeo-Chih HUANG , Pei-Chi CHANG , Chun-Hung TENG
Abstract: An optical image lens assembly includes a plurality of optical lens elements. The optical lens elements include a plurality of plastic optical lens elements having refractive power and aspheric surfaces. The plastic optical lens elements are formed by an injection molding method and include at least one defined-wavelength light absorbing optical lens element, and the defined-wavelength light absorbing optical lens element includes at least one defined-wavelength light absorbent.
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17.发明公开公开(公告)号：US20240264455A1
公开(公告)日：2024-08-08
申请号：US18428201
申请日：2024-01-31
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Chun-Che HSUEH , Yu Jie HONG , Chun-Hung TENG
CPC classification number: G02B27/123 , G02B6/43 , G02B27/0172
Abstract: An optical waveguide plate has a front surface and a back surface, and includes an in-coupling element and an out-coupling element. The in-coupling element and the out-coupling element are disposed on at least one of the front surface and the back surface. An in-coupling area is an area of the at least one of the front surface and the back surface on which the in-coupling element is disposed, and an out-coupling area is an area of the at least one of the front surface and the back surface on which the out-coupling element is disposed. A thickness of the optical waveguide plate is gradually increased from the in-coupling area towards the out-coupling area.
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18.发明公开公开(公告)号：US20240111138A1
公开(公告)日：2024-04-04
申请号：US18475333
申请日：2023-09-27
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Wen-Yu TSAI , Shih-Han CHEN , Chun-Yen CHEN , Cheng-Yu TSAI , Chun-Hung TENG
CPC classification number: G02B17/08 , G02B13/002 , G03B17/17
Abstract: A catadioptric optical membrane, which is disposed on a surface of a substrate, includes a reflection membrane and a matting membrane. The reflection membrane is disposed on an effective optical path area of the substrate and includes a reflection metal membrane and a reflection oxidation membrane. The reflection oxidation membrane includes a first reflection oxidation membrane and a second reflection oxidation membrane. The reflection metal membrane is farther away from the substrate than the first reflection oxidation membrane. The second reflection oxidation membrane is farther away from the substrate than the reflection metal membrane. The matting membrane is disposed on a non-effective optical path area of the substrate. The matting membrane includes a deep-color membrane and a first anti-reflection membrane. The deep-color membrane includes a deep-color metal membrane and a deep-color oxidation membrane. The deep-color membrane is farther away from the substrate than the first anti-reflection membrane.
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公开(公告)号：US20230358926A1
公开(公告)日：2023-11-09
申请号：US18307881
申请日：2023-04-27
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Yeo-Chih HUANG , Pei-Chi CHANG , Chun-Hung TENG
CPC classification number: G02B5/003 , G02B9/62 , G02B9/60 , G02B13/0045
Abstract: An optical image lens assembly includes a plurality of optical lens elements. The optical lens elements include a plurality of plastic optical lens elements having refractive power and aspheric surfaces. The plastic optical lens elements are formed by an injection molding method and include at least one defined-wavelength light absorbing optical lens element, and the defined-wavelength light absorbing optical lens element includes at least one defined-wavelength light absorbent.
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公开(公告)号：US20220373724A1
公开(公告)日：2022-11-24
申请号：US17737102
申请日：2022-05-05
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Wen-Yu TSAI , Chien-Pang CHANG , Chun-Hung TENG , Kuo-Chiang CHU
Abstract: According to the present disclosure, an optical lens assembly includes at least two optical lens elements and at least one reflective element. The reflective element is made of a plastic material, the reflective element includes a reflective coating membrane, and the reflective coating membrane is disposed on a surface of the reflective element. The reflective coating membrane includes at least three coating layers of different materials, the at least three coating layers are respectively made of a first material, a second material and a third material, the first material mainly includes silver, the second material mainly includes titanium, the third material mainly includes chromium oxides, and the coating layer made of the first material and the coating layer made of the second material are disposed between the coating layer made of the third material and the reflective element.
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