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公开(公告)号：US12028509B1
公开(公告)日：2024-07-02
申请号：US18528135
申请日：2023-12-04
Applicant: MLOptic Corp
Inventor： Pengfei Wu , Zhengyuan Wang
CPC classification number: H04N17/002 , G01B11/25 , G01M11/02 , G01M11/0207 , G01M11/0214 , G01M11/0221 , G02B13/22 , G02B27/0012
Abstract: An optical target system for a device under test disposed in an optical path, the optical target system including a pupil, a lens system and a target configured to be adjustable in position along the optical path such that the object distance of the target with respect to the lens system, is adjustable, the lens system is disposed between the pupil and the target along the optical path, wherein a first virtual image cast behind the target is of a first size when the target is disposed at a first position along the optical path, a second virtual image cast behind the target is of a second size when the target is disposed at a second position along the optical path.
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公开(公告)号：US11945043B2
公开(公告)日：2024-04-02
申请号：US16953434
申请日：2020-11-20
Applicant: Concept Laser GmbH
Inventor： Stephan Hunze
IPC: B23K26/00 , B23K26/03 , B23K26/06 , B23K26/342 , B23K26/352 , B33Y30/00 , G02B13/00 , G02B13/22
CPC classification number: B23K26/0006 , B23K26/032 , B23K26/0648 , B23K26/342 , B23K26/352 , B33Y30/00 , G02B13/0005 , G02B13/22
Abstract: An optical system may include a first optical assembly and a first scan field expansion assembly. The first optical assembly may include or may be configured as a first flat-field lens. The first flat-field lens may have a first nominal scan field with a first flat focal plane. The first scan field expansion assembly may include one or more first field-expanding optical elements configured to provide a first expanded scan field coinciding with the first flat focal plane. The first expanded scan field may have a cross-sectional width and/or area that exceeds a corresponding cross-sectional width and/or area of the first nominal scan field. A method of additively manufacturing a three-dimensional object may include directing a first energy beam through the first optical assembly, and directing the first energy beam through the first scan field expansion assembly.
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公开(公告)号：US20240085669A1
公开(公告)日：2024-03-14
申请号：US18510474
申请日：2023-11-15
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Wei-Yu CHEN
CPC classification number: G02B9/64 , G02B13/0045 , G02B27/0037 , G02B13/22
Abstract: An optical imaging 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 seventh lens element has an image-side surface being concave in a paraxial region thereof. At least one of an object-side surface and the image-side surface of the seventh lens element has at least one critical point in an off-axis region thereof. The object-side surface and the image-side surface of the seventh lens element are both aspheric.
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公开(公告)号：US20230214978A1
公开(公告)日：2023-07-06
申请号：US17568861
申请日：2022-01-05
Inventor： Eric Michael Brannigan , Benjamin Ross Brown
CPC classification number: G06T7/0002 , H04N5/247 , H04N5/2354 , H04N5/2256 , G02B13/22 , G01M5/0091
Abstract: A method of detecting a deformation in a lattice structure comprises capturing first image data of the lattice structure via a first image capturing device with a first telecentric lens and a second image capturing device with a second telecentric lens. The first telecentric lens is directed toward the lattice structure, and the second telecentric lens is spaced apart from the first telecentric lens and also directed toward the lattice structure. The method includes compressing the lattice structure; capturing second image data of the lattice structure via the first and second image capturing devices; and detecting the deformation based at least in part on the first and second image data.
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公开(公告)号：US20230194839A1
公开(公告)日：2023-06-22
申请号：US18110754
申请日：2023-02-16
Applicant: Shenzhen Guangjian Technology Co., Ltd.
Inventor： Tianshu ZHANG , Ruibin Huang , Li Zhu , Fanglu Lyu , Bo Wang
CPC classification number: G02B13/22 , G02B13/0065 , G02B9/34
Abstract: An internal-reflective telecentric lens system includes a first lens assembly, a reflector, and a second lens assembly. The first lens assembly includes a first lens. The second lens assembly includes a second lens, a third lens, and a fourth lens, that are disposed in sequence along a light path. The first lens assembly is configured to receive and output one or more light beams towards the reflector. The reflector is configured to reflect the light beams towards the second lens assembly. The second lens assembly is configured to receive and converge the light beams reflected by the reflector at a diaphragm between the second lens and the third lens, and transmit the light beams past the diaphragm through the third and the fourth lenses for imaging.
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Patent Agency Ranking
公开(公告)号：US20190086650A1
公开(公告)日：2019-03-21
申请号：US16130123
申请日：2018-09-13
Applicant: FUJIFILM Corporation
Inventor： Takashi KUNUGISE , Kazuyoshi OKADA
CPC classification number: G02B13/22 , G02B13/0045 , G02B13/04 , G02B15/14 , G02B27/0025
Abstract: The imaging lens consists of, in order from the object side, a first lens group, an aperture stop, a second lens group having a positive refractive power. During focusing from a distant object to a close-range object, the first lens group remains stationary, and the aperture stop and the second lens group integrally move to the object side. The imaging lens satisfies predetermined conditional expressions relating to a focal length of the whole system, a focal length of the first lens group, a principal point position of the second lens group, a focal length of the second lens group, a back focal length, and the like.
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公开(公告)号：US20180321475A1
公开(公告)日：2018-11-08
申请号：US16031228
申请日：2018-07-10
Applicant: FUJIFILM Corporation
Inventor： Masaru AMANO
CPC classification number: G02B17/008 , G02B13/06 , G02B13/16 , G02B13/22 , G03B21/28
Abstract: A projection optical system is constituted by, in order from the reduction side, a first optical system for forming an image displayed by image display elements as an intermediate image, a first optical path bending means that bends an optical path with a reflective surface, and a second optical system for forming the intermediate image on a magnification side conjugate plane. The second optical system is constituted by, in order from the reduction side, a first lens group having a positive refractive power, a second optical path bending means that bends an optical path with a reflective surface, and a second lens group having a positive refractive power. Conditional Formulae (1) and (2) below are satisfied. 10.0
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公开(公告)号：US20180314044A1
公开(公告)日：2018-11-01
申请号：US15771261
申请日：2016-10-28
Applicant: EOS GmbH Electro Optical Systems
Inventor： Hans Perret , Stephan Gronenborn
IPC: G02B19/00 , B29C64/268 , B29C64/153 , B33Y30/00 , B22F3/105
CPC classification number: G02B13/22 , B41J2/451 , G03F7/2053 , G03F7/2055 , G03F7/70416
Abstract: An exposure optics serves as an equipping and/or retrofitting optics for a device for producing a three-dimensional object by selectively solidifying building material, layer by layer. The exposure optics includes at least a first object-sided lens system having a first focal length f1 and a second image-sided lens system having a second focal length f2, which lens systems can be arranged in the beam path of the radiation emitted by the radiation source. The focal plane of the first lens system and the focal plane of the second lens system coincide in a plane between the two lens systems. The focal length f1 of the first lens system is equal to or greater than the focal length f2 of the second lens system. The exposure optics is designed and can be arranged such that the electromagnetic radiation is incident substantially perpendicular on the working surface.
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公开(公告)号：US10036877B2
公开(公告)日：2018-07-31
申请号：US14764688
申请日：2014-02-05
Applicant: Vanderbilt University
Inventor： Charles David Weaver , Roger Bryan Greenway, Jr.
IPC: H04N9/083 , H04N5/225 , G02B13/22 , G02B3/00 , G02B21/00 , G02B21/36 , G02B21/16 , G06T11/60 , G02B7/00 , G02B13/00 , G02B27/10 , G02B27/14 , G02B27/30 , B01L3/00 , G01N21/25 , G01N21/64
CPC classification number: G02B13/22 , B01L3/5085 , G01N21/253 , G01N21/6452 , G02B3/0068 , G02B7/006 , G02B13/006 , G02B21/008 , G02B21/16 , G02B21/367 , G02B27/106 , G02B27/141 , G02B27/30 , G06T11/60
Abstract: Systems and methods are provided for imaging a target as for example a multiwell plate. A plurality of regions of interest are selected on the target at a system control. The selected plurality of regions of interest are simultaneously imaged to provide an image with the plurality of regions of interest selectively magnified by a microlens array (30) and the regions that are not of interest are rejected by means of a mirrored aperture array, a mask, or selective illumination of the regions of interest of the target.
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公开(公告)号：US09995910B1
公开(公告)日：2018-06-12
申请号：US14932593
申请日：2015-11-04
Applicant: Navitar Industries, LLC
Inventor： Russell Hudyma , Michael Thomas , Ian Wallhead , Arash Ghorbani
CPC classification number: G02B13/0045 , G02B9/12 , G02B9/34 , G02B9/64 , G02B13/006 , G02B13/04 , G02B13/22 , G02B27/0018 , G02B27/0025 , H04N5/2254
Abstract: An optical assembly for a point action camera or other compact digital camera having a wide field of view, includes multiple lens elements, including at least one lens element that has an aspheric lens surface. The optical assembly is configured to provide a field of view in excess of 120 degrees. The optical assembly has a modulation transfer function (hereinafter “MTF”) at the Nyquist frequency that is above 0.3 and a MTF at half Nyquist frequency that is above 0.5 across the wide field of view.
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