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公开(公告)号：US20250102704A1
公开(公告)日：2025-03-27
申请号：US18800379
申请日：2024-08-12
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Chun-Ming CHEN , Pi-Kuei SHIH , Chun-Che HSUEH , Yu Jie HONG , Chun-Hung TENG
Abstract: A waveguide plate includes a substrate and at least two metasurfaces. The at least two metasurfaces are disposed on the substrate, wherein each of the metasurfaces includes at least two metastructure arrays, and the at least two metastructure arrays are linearly arranged. Each of the metastructure arrays includes at least two metastructure groups, and each of the metastructure groups includes at least two metastructures.
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公开(公告)号：US20240053587A1
公开(公告)日：2024-02-15
申请号：US18494843
申请日：2023-10-26
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Dung-Yi HSIEH , Chun-Che HSUEH , Wei-Yu CHEN
CPC classification number: G02B13/0045 , G02B9/60 , G02B13/0015 , G02B27/0025
Abstract: An imaging optical system includes, 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 and a fifth lens element. The first lens element with refractive power has an object-side surface being convex in a paraxial region and an image-side surface being concave in a paraxial region. The second lens element with positive refractive power has an image-side surface being convex in a paraxial region. The third lens element with negative refractive power has an image-side surface being concave in a paraxial region. The fourth lens element with positive refractive power has an image-side surface being convex in a paraxial region. The fifth lens element with negative refractive power has an image-side surface being concave in a paraxial region and having a convex shape in an off-axial region thereof.
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43.发明公开公开(公告)号：US20230314774A1
公开(公告)日：2023-10-05
申请号：US18206572
申请日：2023-06-06
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Yu-Tai TSENG , Chun-Che HSUEH , Hung-Shuo CHEN , Wei-Yu CHEN
CPC classification number: G02B13/0045 , G02B9/64
Abstract: An optical lens assembly includes seven lens elements which are, in order from object side to image side: first lens element, second lens element, third lens element, fourth lens element, fifth lens element, sixth lens element and seventh lens element. The first lens element has object-side surface having at least one convex shape in off-axis region thereof. The second lens element with positive refractive power has object-side surface being convex in paraxial region thereof. The third lens element has image-side surface being convex in paraxial region thereof. The sixth lens element with positive refractive power has object-side surface being convex in paraxial region thereof. The seventh lens element has image-side surface being concave in paraxial region thereof, and the image-side surface of the seventh lens element has at least one convex critical point in off-axis region thereof. The optical lens assembly has a total of seven lens elements.
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公开(公告)号：US20230216996A1
公开(公告)日：2023-07-06
申请号：US17685900
申请日：2022-03-03
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Yu Jie HONG , Chun-Che HSUEH , Fuh-Shyang YANG
CPC classification number: H04N9/3152 , H04N9/3161 , H04N9/3164 , G02B26/0833
Abstract: A light engine includes an image surface, a projected light surface, a projection lens assembly, and a plurality of folding elements. The image surface has three image areas. The projected light surface has three light sources that provide light with different wavelengths. The plurality of folding elements are arranged along a light emitting axis. The image surface and the projected light surface are substantially in parallel with the light emitting axis, and there is an air gap located between the image surface and the projected light surface. The three light sources respectively correspond to the plurality of folding elements and respectively correspond to the three image areas, and the light emitting axis and the projection lens assembly are disposed on the same optical path.
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公开(公告)号：US20230194835A1
公开(公告)日：2023-06-22
申请号：US17667113
申请日：2022-02-08
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Chun-Che HSUEH , Chun-Yen CHEN , Meng-Kuan CHO
CPC classification number: G02B13/004 , G02B9/58
Abstract: An image capturing optical system includes four 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 and a fourth lens element. The first lens element with negative refractive power has an image-side surface being concave in a paraxial region thereof. The second lens element has positive refractive power. The third lens element with positive refractive power has an object-side surface being concave in a paraxial region thereof and an image-side surface being convex in a paraxial region thereof. The image capturing optical system further includes an aperture stop located between the second lens element and the third lens element.
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Patent Agency Ranking
公开(公告)号：US20230071318A1
公开(公告)日：2023-03-09
申请号：US18048072
申请日：2022-10-20
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Dung-Yi HSIEH , Chun-Yen CHEN , Chun-Che HSUEH , Hsin-Hsuan HUANG
Abstract: An optical photographing lens assembly includes, 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 and a fifth lens element. The first lens element with positive refractive power has an object-side surface being convex in a paraxial region thereof and an image-side surface being concave in a paraxial region thereof. The second lens element with negative refractive power has an image-side surface being concave in a paraxial region thereof. The third lens element has two surfaces being both aspheric. The fourth lens element with negative refractive power has an image-side surface being concave in a paraxial region thereof, wherein two surfaces thereof are aspheric. The fifth lens element has an image-side surface being convex in a paraxial region thereof, wherein two surfaces thereof are aspheric.
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公开(公告)号：US20220350114A1
公开(公告)日：2022-11-03
申请号：US17480567
申请日：2021-09-21
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Chun-Che HSUEH , Jin Sen WANG , Hsin-Hsuan HUANG , FUH-SHYANG YANG
IPC: G02B13/00 , G02B9/06 , G01S17/894
Abstract: An optical lens system includes two lens elements which are, in order from an object side to an image side along an optical path: a first lens element and a second lens element. Each of the two lens elements has an object-side surface facing toward the object side and an image-side surface facing toward the image side. At least one of the object-side surface and the image-side surface of at least one lens element of the optical lens system is aspheric. A total number of the lens elements in the optical lens system is two.
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公开(公告)号：US20220270391A1
公开(公告)日：2022-08-25
申请号：US17738999
申请日：2022-05-06
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Chun-Che HSUEH , Hsiang-Chi TANG , Tsung-Han TSAI , Fuh-Shyang YANG
Abstract: An optical fingerprint identification system includes a cover, a light emitting layer, an optical layer, an image sensor and a base that are sequentially disposed from top to bottom. The cover has a fingerprint contact surface on top. The image sensor has an image surface. The optical layer includes a first array layer and a second array layer, and the first array layer is stacked on top of the second array layer. The first array layer and the second array layer respectively include a plurality of first array lens elements and a plurality of second array lens elements respectively arranged at equal intervals in a first direction. Each of the first array lens elements and a corresponding second array lens element of the second array layer are coaxial along an optical axis and form an imaging unit.
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公开(公告)号：US20210018731A1
公开(公告)日：2021-01-21
申请号：US17064644
申请日：2020-10-07
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Chun-Che HSUEH , Chun-Yen CHEN , Wei-Yu CHEN
Abstract: A photographing lens assembly includes seven 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 and a seventh lens element. The first lens element with positive refractive power has an object-side surface being convex in a paraxial region thereof. The second lens element with negative refractive power has an image-side surface being concave in a paraxial region thereof. The seventh lens element has an object-side surface being convex in a paraxial region thereof and an image-side surface being concave in a paraxial region thereof. The image-side surface of the seventh lens element includes at least one convex shape in an off-axis region thereof. The object-side surface and the image-side surface of the seventh lens element are aspheric.
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公开(公告)号：US20190094494A1
公开(公告)日：2019-03-28
申请号：US15865503
申请日：2018-01-09
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Po-Lun HSU , Chun-Yen CHEN , Chun-Che HSUEH , Wei-Yu CHEN
CPC classification number: G02B9/64 , G02B13/0045 , G02B27/0025
Abstract: An optical photographing lens assembly includes seven 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 and a seventh lens element. The first lens element with positive refractive power has an object-side surface being convex in a paraxial region thereof. The third lens element has positive refractive power. The seventh lens element has an image-side surface being concave in a paraxial region thereof and including at least one convex shape in an off-axis region thereof. An object-side surface and the image-side surface of the seventh lens element are aspheric.
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