公开(公告)号：US11932844B2

公开(公告)日：2024-03-19

申请号：US17256333

申请日：2018-10-09

申请人： Hewlett-Packard Development Company, L.P.

发明人： Fausto D'Apuzzo ,  Anita Rogacs

IPC分类号： C12M1/34 ,  G02B1/00 ,  G02B1/06 ,  G02B21/00 ,  G02B21/06 ,  G02B21/36 ,  G06V20/69

CPC分类号： C12M41/36 ,  G02B1/002 ,  G02B1/06 ,  G02B21/0004 ,  G02B21/06 ,  G02B21/364 ,  G02B21/365 ,  G06V20/693 ,  G02B2207/101

摘要： An example apparatus includes a sampling layer to position microscopic objects thereon, a light encoding layer to encode light from passing through the microscopic objects of the sampling layer, the light encoding layer having a substantially flat form, and an imaging layer to capture an image of the sampling layer, the image being encoded by the light encoding layer.

公开(公告)号：US11719960B1

公开(公告)日：2023-08-08

申请号：US16869222

申请日：2020-05-07

申请人： META PLATFORMS TECHNOLOGIES, LLC

发明人： Andrew Alexander Herbert ,  Thomas Norman Llyn Jacoby ,  Hayden Erik Hernández ,  Andrew John Ouderkirk

IPC分类号： G02C7/08 ,  G02B1/06 ,  G02B27/01

CPC分类号： G02C7/088 ,  G02B1/06 ,  G02B27/0172 ,  G02B2027/0178

摘要： Examples include a device including a fluid lens having a membrane, a substrate, and a fluid at least partially enclosed between the membrane and the substrate. The membrane may have a spatial variation in at least one membrane parameter along a particular direction, that may compensate for gravity sag in the membrane of the fluid lens when the device is worn by a user. Examples also include related methods and systems.

公开(公告)号：US11630242B1

公开(公告)日：2023-04-18

申请号：US17082059

申请日：2020-10-28

申请人： META PLATFORMS TECHNOLOGIES, LLC

发明人： Sheng Ye ,  Lafe Purvis ,  Andrew John Ouderkirk ,  Manuel Caraballo-Sánchez ,  Hayden Erik Hernández

IPC分类号： G02B1/06 ,  G02B3/14 ,  C07C319/12

摘要： A liquid lens fluid composition includes a polyphenyl ether molecule having from 2 to 7 aromatic rings, where the rings include ortho substitutions, meta substitutions, or a combination of ortho, meta, and para substitutions. Inter-ring linkages may include sulfur or oxygen. The liquid lens fluid composition may be characterized by a refractive index over the visible spectrum of at least 1.4, a viscosity at room temperature of less than approximately 1000 cP, and a freezing point of less than approximately −10° C.

公开(公告)号：US11347079B2

公开(公告)日：2022-05-31

申请号：US16797979

申请日：2020-02-21

申请人： Johnnie E. Floyd

发明人： Johnnie E. Floyd

IPC分类号： G02C7/08 ,  G02B3/14 ,  G02C7/02 ,  G02B1/06

摘要： A control system for an optical assembly having a fluid optical cell coupled to a hydraulic drive system includes a detector system that detects a line-of-sight of a user based on electromagnetic energy reflected from an eye of a user. The control system additionally includes a controller configured to determine a distance to an observed object based on the detected line-of-sight. The control system is also configured to control the hydraulic drive system to modify hydraulic pressure applied to the fluid optical cell such that the fluid optical cell is focused on the observed object.

公开(公告)号：US11346984B2

公开(公告)日：2022-05-31

申请号：US16484353

申请日：2018-02-07

申请人： CORNING INCORPORATED

发明人： Raymond Miller Karam ,  Ming Ying

IPC分类号： G02B1/06 ,  G02F1/03 ,  G02B7/02 ,  G02C7/02 ,  G02C3/00 ,  G02B3/14 ,  G02B7/28 ,  G02B26/00

摘要： A liquid lens can include a chamber and a first fluid and a second fluid contained in the chamber. The first fluid and the second fluid may be immiscible, forming a fluid interface between the two fluids. The liquid lens may also include a first electrode insulated from the two fluids. The liquid lens may include a second electrode in electrical communication with the first fluid. The liquid lens may be configured such that a position of the fluid interface is based at least in part on voltages applied to the electrodes. The lens may further include a window configured to transmit light therethrough along an optical axis. Further, a flexible member may be configured to cause the window to displace axially along the optical axis to change the volume of the chamber.

公开(公告)号：US11307330B2

公开(公告)日：2022-04-19

申请号：US17148998

申请日：2021-01-14

申请人： MITUTOYO CORPORATION

发明人： Koji Kubo ,  Yuko Shishido

IPC分类号： G02B1/06 ,  G02B3/14 ,  G02B13/00

摘要： A variable focal length optical system includes: an imaging lens configured to condense a parallel beam of light from an objective lens to form an intermediate image; a relay system including, in sequence from an object side, a first relay lens and a second relay lens and configured to relay the intermediate image to infinity; and a lens system of a liquid resonant type which is located between the first relay lens and the second relay lens. A front principal point of the lens system is located to be conjugated with an exit pupil of the objective lens and an expression, 1.90≤fTube/fR1≤2.15, is satisfied. In the expression, fTube denotes a focal length of the imaging lens and fR1 denote a focal length of the first relay lens.

公开(公告)号：US11262487B1

公开(公告)日：2022-03-01

申请号：US16789394

申请日：2020-02-12

申请人： Facebook Technologies, LLC

发明人： Kirk Erik Burgess

IPC分类号： G02B1/06 ,  G02B3/14 ,  G06F1/16 ,  G02F1/166 ,  G02B27/01 ,  G02B3/00

摘要： The disclosed liquid lens array may include a plurality of independently operable array sections, each of which may include (1) a transparent base layer, (2) an aperture plate overlapping the transparent base layer, the aperture plate defining a plurality of apertures extending through the aperture plate between an inner surface of the aperture plate facing the transparent base layer and an outer surface of the aperture plate, and (3) a liquid reservoir disposed between the base layer and the aperture plate. The liquid lens array may also include driving circuit for operating at least one array section of the plurality of array sections to change liquid volumes extending from the liquid reservoir at least partially through the apertures defined in the aperture plate of the at least one array section. Various other methods, systems, and devices are also disclosed.

公开(公告)号：US11221500B2

公开(公告)日：2022-01-11

申请号：US16081927

申请日：2017-04-05

申请人： Optica Amuka (A.A.) Ltd.

发明人： Yoav Yadin ,  Yariv Haddad ,  Shamir Rosen ,  Itamar Haim Grutman ,  Yuval Vardy

IPC分类号： G02B1/06 ,  G03H1/02 ,  G02F1/03 ,  G02F1/153 ,  G02F1/00 ,  G02C5/00 ,  G02C7/02 ,  G02C7/00 ,  G02C3/00 ,  G02F1/1335 ,  G02C7/08 ,  G02B3/14 ,  G02F1/13

摘要： An optical device (40) includes an electro-optical layer (46), having an effective local index of refraction at any given location within an active area of the electro-optical layer that is determined by a voltage waveform applied across the electro-optical layer at the location. Conductive electrodes (50, 52) are disposed over opposing first and second side of the electro-optical layer. Control circuitry (26) is configured to apply control voltage waveforms between the conductive electrodes so as to generate a phase modulation profile in the electro-optical layer that causes rays of optical radiation that are incident on the device to converge or diverge with a given focal power, while varying an amplitude of the control voltage waveforms for the given focal power responsively to an angle of incidence of the rays that impinge on the device from a direction of interest.

公开(公告)号：US11209576B2

公开(公告)日：2021-12-28

申请号：US15737287

申请日：2016-06-17

申请人： OPTOTUNE CONSUMER AG

发明人： Roman Patscheider ,  David Niederer ,  Pit Gebbers ,  Daniel Borer ,  Christopher Laning ,  Stephan Smolka

IPC分类号： G02B3/12 ,  G02B1/06 ,  G02B3/14 ,  G02B26/00 ,  G02B7/02

摘要： The invention relates to a lens, comprising a container (100) defining a volume (V) which is filled with a transparent liquid (2), wherein the container (10) comprises a transparent and elastically deformable membrane (20) and a rigid member (30), wherein the membrane (20) and the rigid member (30) delimit said volume (V), and a lens shaping element (200) that contacts the membrane (20) and defines an area (21) of said membrane (20), which area (21) has an adjustable curvature for adjusting the focal length of the lens (1). According to the invention, the lens (1) is configured to compensate a thermal expansion of the liquid (2) and/or a change of the refractive index of the liquid (2) due to an increased temperature of the liquid (2) in order to reduce an unwanted thermally induced change of the focal length of the lens (1).

公开(公告)号：US11002854B2

公开(公告)日：2021-05-11

申请号：US15857733

申请日：2017-12-29

申请人： Cognex Corporation

发明人： Andreas Weber ,  Laurens Nunnink ,  Rene Delasauce ,  William Equitz

IPC分类号： G02B1/06 ,  G01S17/10 ,  H04N5/225 ,  G01S7/486 ,  G02B7/04 ,  H04N5/232 ,  G01S17/36 ,  G02B7/08 ,  G02B7/40 ,  G01S17/86

摘要： This invention provides an integrated time-of-flight sensor that delivers distance information to a processor associated with the camera assembly and vision system. The distance is processed with the above-described feedback control, to auto-focus the camera assembly's variable lens during runtime operation based on the particular size/shape object(s) within the field of view. The shortest measured distance is used to set the focus distance of the lens. To correct for calibration or drift errors, a further image-based focus optimization can occur around the measured distance and/or based on the measured temperature. The distance information generated by the time-of-flight sensor can be employed to perform other functions. Other functions include self-triggering of image acquisition, object size dimensioning, detection and analysis of object defects and/or gap detection between objects in the field of view and software-controlled range detection to prevent unintentional reading of (e.g.) IDs on objects outside a defined range (presentation mode).