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公开(公告)号：US10385187B2
公开(公告)日：2019-08-20
申请号：US15516897
申请日：2016-01-26
发明人： Zhengxiang Fei , Qingbo Yan , Jianyou He , Tianniao Huang , Genting Cao
摘要： The present invention disclose a blue-light-proof optical resin lens, comprising resin monomers, a blue light absorber and a polymerization initiator; the mass ratio of the resin monomers to the blue light absorber to the polymerization initiator is 100:0.01-2.00:1.00-4.00; the resin monomers are the mixture of allyl diglycol carbonate (ADC) and polymers thereof; the blue light absorber is a benzophenone type ultraviolet light absorber and/or indole type blue light absorber; the polymerization initiator is selected from one or two of tert-butyl peroxy-2-ethylhexyl carbonate, tert-amyl peroxy-2-ethylhexyl carbonate and 1,1-di-(tert-butylperoxy)-3,3,5-trimethylcyclohexane. A preparation method includes the following steps: weighing the resin monomers, the blue light absorber and the polymerization initiator by ratio, sealing the mixture at room temperature, uniformly stirring the mixture at vacuum, filtering the stirred mixture with a filter core, and then vacuuming; (2) immediate pouring, molding by thermocuring; (3) mold opening, washing the obtained product; (4) annealing the obtained product, and inspecting the product. The blue-light-proof optical resin lens prepared by the method has a blue light absorbency (380-500 nm) of 15%-40%.
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公开(公告)号：US12124010B2
公开(公告)日：2024-10-22
申请号：US17383461
申请日：2021-07-23
发明人： Yang Gao , Xiangxi Wu , Wuchao Xu , Fujian Dai , Liefeng Zhao
CPC分类号： G02B13/0045 , G02B9/62
摘要： The disclosure provides an optical imaging lens assembly, which sequentially includes from an object side to an image side along an optical axis: a first lens with a refractive power; a second lens with a refractive power; a third lens with a refractive power; a fourth lens with a refractive power; a fifth lens with a refractive power; and a sixth lens with a refractive power. Wherein Semi-FOV is a half of a maximum field of view of the optical imaging lens assembly, and Semi-FOV satisfies Semi-FOV≥60°; A curvature radius of an object-side surface of the first lens and a curvature radius of an image-side surface of the first lens satisfy −2.5
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公开(公告)号：US12117671B2
公开(公告)日：2024-10-15
申请号：US17509597
申请日：2021-10-25
发明人： Xiaofeng Weng , Jianke Wenren , Fujian Dai , Liefeng Zhao
CPC分类号： G02B9/64 , G02B13/0045
摘要： A camera lens group, along an optical axis from an object side to an image side, sequentially includes a first lens to a seventh lens. The first lens has positive refractive power; the second lens has refractive power; the third lens has refractive power; the fourth lens has refractive power, a convex object-side surface, and a convex image-side surface; the fifth lens has refractive power, a convex object-side surface, and a concave image-side surface; the sixth lens has refractive power, and a concave image-side surface; and the seventh lens has refractive power. A total effective focal length f of the camera lens group and an entrance pupil diameter EPD of the camera lens group satisfy: f/EPD
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公开(公告)号：US12117670B2
公开(公告)日：2024-10-15
申请号：US16797084
申请日：2020-02-21
发明人： Hitoshi Hirano
CPC分类号： G02B9/64 , G02B13/0045 , G02B27/0025 , H04N23/55
摘要： An imaging lens includes a first lens having positive refractive power; a second lens having positive refractive power; a third lens having negative refractive power; a fourth lens having negative refractive power; a fifth lens; a sixth lens; a seventh lens; an eighth lens; and a ninth lens having negative refractive power, arranged in this order from an object side to an image plane side. The ninth lens is formed in a shape so that a surface thereof on the image plane side has an aspherical shape having an inflection point.
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公开(公告)号：US12105356B2
公开(公告)日：2024-10-01
申请号：US17646506
申请日：2021-12-30
发明人： Jianke Wenren , Liefeng Zhao , Fujian Dai
CPC分类号： G02B9/64 , G02B13/0045
摘要： An optical imaging lens assembly is provided, which includes, a first lens having a negative refractive power; a second lens having a positive refractive power; a third lens; a fourth lens having a positive refractive power; a fifth lens having a negative refractive power; a sixth lens having a positive refractive power; and a seventh lens with a convex object-side surface. An axial distance TTL from an object-side surface of the first lens to an imaging plane of the optical imaging lens assembly and a half of a maximal field-of-view Semi-FOV of the optical imaging lens assembly satisfy: TTL/Tan(Semi-FOV)
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公开(公告)号：US20240295709A1
公开(公告)日：2024-09-05
申请号：US18193673
申请日：2023-03-31
发明人： Li Wu , Bin Zheng , Zhongwei Yu , Zhong Cheng , Lei Lin
IPC分类号： G02B6/44
CPC分类号： G02B6/4429
摘要： An optical fiber capillary tube power stripper includes a capillary tube having an elongated body including an outer surface and an inner surface that surrounds an elongated optical fiber. The capillary tube (a) defines one or more spaces or gaps in the elongated body between first and second ends of the capillary tube; or (b) includes one or more lateral openings in the elongated body between first and second ends of the capillary tube; or (c) includes the outer surface defining one or more ridges and one or more valleys or grooves that surround the outer surface of the body between first and second ends of the capillary tube.
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公开(公告)号：US20240295700A1
公开(公告)日：2024-09-05
申请号：US18193677
申请日：2023-03-31
发明人： Li Wu , Bin Zheng , Zhongwei Yu , Zhong Cheng , Lei Lin
CPC分类号： G02B6/29334 , G02B6/02209 , H01S3/06708 , H01S3/0675
摘要： An optical fiber cladding optical filter includes an elongated capillary tube including an inner surface positioned surrounding an elongated optical fiber proximate or adjacent an exterior surface of the optical fiber and an outer surface positioned spaced from the exterior surface of the optical fiber. A grating formed on the outer surface of the elongated capillary tube aids in suppressing evanescent laser light that exits the optical fiber transverse to a longitudinal axis of the optical fiber. The elongated optical fiber and surrounding elongated capillary tube can include one or more curves along a length thereof to aid in the removal of one or more higher order laser modes as evanescent laser light that exits the optical fiber. The one or more curves can be received in a container to prevent or avoid evanescent laser exiting the optical fiber from propagating into an ambient environment.
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公开(公告)号：US12078785B2
公开(公告)日：2024-09-03
申请号：US17391829
申请日：2021-08-02
发明人： Koji Nitta , Masaya Hashimoto
CPC分类号： G02B13/0045 , G02B9/62 , G02B9/60 , G02B13/18
摘要： There is provided an imaging lens with excellent optical characteristics which satisfies demand of a low profile and a low F-number. An imaging lens comprises in order from an object side to an image side, a first lens with negative refractive power having an object-side surface being convex in a paraxial region, a second lens with positive refractive power in a paraxial region, a third lens with the negative refractive power in a paraxial region, a fourth lens with the positive refractive power in a paraxial region, a fifth lens having a flat object-side surface and a flat image-side surface that are aspheric, and a sixth lens with the negative refractive power having an image-side surface being concave in a paraxial region.
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公开(公告)号：US12078784B2
公开(公告)日：2024-09-03
申请号：US17307510
申请日：2021-05-04
发明人： Jianke Wenren , Fenglong Lu , Fujian Dai , Liefeng Zhao
CPC分类号： G02B13/0045 , G02B9/60 , G02B27/0025
摘要： The present disclosure discloses an optical imaging lens assembly including, sequentially from an object side to an image side along an optical axis, a first lens having refractive power, a concave object-side surface and a concave image-side surface; a second lens having positive refractive power; a third lens having refractive power and a convex object-side surface; a fourth lens having positive refractive power; and a fifth lens having negative refractive power. An effective focal length f1 of the first lens and a radius of curvature R1 of the object-side surface of the first lens satisfy 0.7≤f1/R1
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公开(公告)号：US20240263076A1
公开(公告)日：2024-08-08
申请号：US18565088
申请日：2022-03-18
发明人： Junichi BABA
IPC分类号： C09K19/40 , C09K19/54 , G02F1/1334
CPC分类号： C09K19/40 , C09K19/54 , G02F1/1334 , C09K2019/546
摘要： A liquid crystal composition contains a polymerizable organic compound and a liquid crystal compound. The liquid crystal compound has a solid phase-nematic phase transition temperature or smectic phase-nematic phase transition temperature of 0° C. or lower. The content of the polymerizable organic compound having a glass transition temperature of 0° C. or lower based on a total amount of the liquid crystal composition is 10 to 60 mass %. A liquid crystal element has a liquid crystal layer, and the liquid crystal layer contains such a liquid crystal composition.
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