With Temperature Compensation Or Control Patents (Class 359/820)
  • Patent number: 10527756
    Abstract: A plastic lens element includes an optical effective portion and a lens peripheral portion in order from a central axis to an edge of the plastic lens element. The lens peripheral portion surrounds the optical effective portion and includes a plurality of curve-shaped strip structures. Each of the curve-shaped strip structures is located and extended along a radial direction of the central axis. Each of the curve-shaped strip structures is curved in a concave form. The curve-shaped strip structures are prearranged in a circumferential direction of the central axis and around the optical effective portion. The curve-shaped strip structures are not directly connected to the optical effective portion.
    Type: Grant
    Filed: March 20, 2018
    Date of Patent: January 7, 2020
    Assignee: LARGAN PRECISION CO., LTD.
    Inventor: Ming-Ta Chou
  • Patent number: 10372025
    Abstract: An optical device includes a light modulation device disposed on an optical axis of incident light, and a holding section configured to hold the light modulation device. The holding section includes an inflow part to which a liquid supplied from an outside of the holding section inflows, a flow channel forming part disposed along a circumferential edge of the light modulation device so as to have an annular shape, and having a flow channel through which the liquid flowed from the inflow part circulates, and an outflow part from which the liquid having flowed through the flow channel outflows to the outside of the holding section. At least one of an inside of the inflow part and an inside of the flow channel is provided with at least one projection.
    Type: Grant
    Filed: November 16, 2017
    Date of Patent: August 6, 2019
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Kensaku Matsumoto, Kaname Nagatani
  • Patent number: 10371923
    Abstract: A lens control apparatus for moving a lens in an optical axis direction, including: a stepping motor for driving the lens; a controller for obtaining a drive amount on the basis of an input target position, instructing a rotational position of the stepping motor to perform drive control, wherein the controller obtains, in accordance with a first drive amount when the stepping motor is driven to a current position, a second drive amount from the current position to a target position, a third drive amount obtained by correcting the second drive amount, and instructs a rotational position on the basis of the third drive amount.
    Type: Grant
    Filed: May 16, 2017
    Date of Patent: August 6, 2019
    Assignee: Olympus Corporation
    Inventor: Yohei Komiyama
  • Patent number: 10367981
    Abstract: The present invention provides a portable electronic device, and an image-capturing module thereof and a carrier assembly thereof. The image-capturing module includes a circuit substrate, an image-sensing chip, at least one electronic component, a package structure, and a lens assembly. The circuit substrate has a top surface and a bottom surface. The image-sensing chip is electrically connected to the circuit substrate, and the image-sensing chip has an image-sensing area. The at least one electronic component is disposed on the bottom surface of the circuit substrate and electrically connected to the circuit substrate. The package structure is disposed on the bottom surface of the circuit substrate to cover the at least one electronic component. The lens assembly includes a holder structure disposed on the top surface of the circuit substrate and a lens structure held by the holder structure and corresponding to the image-sensing area.
    Type: Grant
    Filed: August 10, 2017
    Date of Patent: July 30, 2019
    Assignee: AZUREWAVE TECHNOLOGIES, INC.
    Inventors: Tseng-Chieh Lee, Kung-An Lin
  • Patent number: 10345146
    Abstract: An optical component group for use in a spectrometer module of a system for measuring whole-blood hemoglobin parameters or whole-blood bilirubin parameters. The optical component group includes a light dispersing element and an achromatic lens assembly disposed between the light dispersing element and a light entrance port of the spectrometer module where the achromatic lens assembly is thermo-compensating permitting thermal expansion and contraction of the achromatic lens assembly in a linear direction where the linear directions is also transverse to a light beam from the light entrance port through the achromatic lens assembly and to the light dispersing element and back through the achromatic lens assembly.
    Type: Grant
    Filed: September 17, 2018
    Date of Patent: July 9, 2019
    Inventors: Michael S. Cafferty, Scott P. Cionek
  • Patent number: 10312998
    Abstract: A hybrid communications assembly for a spacecraft is provided. The hybrid communications assembly may include an assembly base, one or more laser communications terminals mounted on the assembly base, and a radio frequency antenna system mounted on the assembly base. The assembly may be mounted on an earth deck of the spacecraft, and the laser communications terminals may be mounted at an angle between 20 and 70 degrees with respect to the earth deck. A thermal radiator may be mounted on the assembly base and thermally coupled to the laser communications terminal. The radio frequency antenna system may be disposed between the laser communications terminals. The radio frequency antenna system may include one or more antenna reflectors mounted on the assembly base and one or more antenna feeds mounted on a tower.
    Type: Grant
    Filed: September 24, 2015
    Date of Patent: June 4, 2019
    Assignee: LOCKHEED MARTIN CORPORATION
    Inventors: Neil E. Goodzeit, Craig Edward Jones
  • Patent number: 10261400
    Abstract: An optical device includes a light modulation device disposed on an optical axis of incident light, and a holding section configured to hold the light modulation device. The holding section includes an inflow part to which a liquid supplied from an outside of the holding section inflows, a flow channel forming part disposed along a circumferential edge of the light modulation device so as to have an annular shape, and having a flow channel through which the liquid flowed from the inflow part circulates, and an outflow part from which the liquid having flowed through the flow channel outflows to the outside of the holding section. At least one of an inside of the inflow part and an inside of the flow channel is provided with at least one projection.
    Type: Grant
    Filed: November 16, 2017
    Date of Patent: April 16, 2019
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Kensaku Matsumoto, Kaname Nagatani
  • Patent number: 10234652
    Abstract: Provided are a zoom lens device and a method for controlling the device, capable of reducing astigmatism regardless of the position of the zoom lens. In accordance with a zoom command, a lens constituting a zoom optical system is moved in the direction of the optical axis (step 81). The position of the moved lens is detected (step 82), and an amount of rotation corresponding to the detected position of the moved lens is read from a table that is stored (step 83). The lens is rotated by the read amount of rotation (step 84). As a result of the rotation of the lens, astigmatism in the zoom optical system is reduced.
    Type: Grant
    Filed: August 12, 2016
    Date of Patent: March 19, 2019
    Assignee: FUJIFILM Corporation
    Inventor: Nobuaki Toyama
  • Patent number: 10230471
    Abstract: A coaxial transmitter optical subassembly (TOSA) including a cuboid type TO laser package may be used in an optical transceiver for transmitting an optical signal at a channel wavelength. The cuboid type TO laser package is made of a thermally conductive material and has substantially flat outer surfaces that may be thermally coupled to substantially flat outer surfaces on a transceiver housing and/or on other cuboid type TO laser packages. An optical transceiver may include multiple coaxial TOSAs with the cuboid type TO laser packages stacked in the transceiver housing. The cuboid type TO laser package may thus provide improved thermal characteristics and a reduced size within the optical transceiver.
    Type: Grant
    Filed: May 23, 2016
    Date of Patent: March 12, 2019
    Assignee: Applied Optoelectronics, Inc.
    Inventors: I-Lung Ho, Chong Wang, Justin Lii, Zhengyu Miao
  • Patent number: 10222576
    Abstract: In order to provide a projection lens barrel and a projection display device that are capable of correcting the optical characteristics of a plurality of lens groups, a projection lens barrel, comprising a lens optical system causing light from an image display element to be formed as a projected image on a screen, also comprises correction mechanisms that move each of at least two lens groups along an optical axis and correct the optical characteristics to be corrected, said lens groups each having different optical characteristics for correction in order to suppress reduction in image quality of a projected image caused by changes in optical characteristics caused by temperature changes in the projection lens barrel.
    Type: Grant
    Filed: August 27, 2015
    Date of Patent: March 5, 2019
    Assignee: Nittoh Inc.
    Inventors: Takafumi Hanaoka, Takahiko Matsuo, Takuya Fujimatsu
  • Patent number: 10209480
    Abstract: A camera arrangement for or in a motor vehicle includes at least one objective with each objective including at least one lens. A temperature measurement device is configured to measure the temperature of the objective and/or of the environment of the objective. A temperature adjustment device is thermally coupled to the at least one objective and configured to adjust the temperature of the objective as a function of the measured temperature.
    Type: Grant
    Filed: November 20, 2017
    Date of Patent: February 19, 2019
    Assignee: CONTI TEMIC MICROELECTRONIC GMBH
    Inventors: Thomas Fechner, Dieter Krökel
  • Patent number: 10191241
    Abstract: The present invention provides an imaging device in which focus movement due to a temperature variation is suppressed and the infiltration of foreign matter such as liquid or dust is prevented. An imaging device 10 is provided with an imaging lens 11, an imaging element 12, and an intermediate member 15. The imaging lens 11 is held by a lens-barrel 13 and forms an image of a photographic subject. The imaging element 12 captures the image of the photographic subject which is formed by the imaging lens 11. The intermediate member 15 has, on the inner-peripheral-surface of one end thereof, a flange portion 15a which comes into contact with the lens-barrel 13, and holds the lens-barrel 13 by joining the front surface 26 of a flange portion 13b of the lens-barrel 13 and the surface 27 on the imaging element 12 side of the flange portion 15a to each other.
    Type: Grant
    Filed: October 7, 2015
    Date of Patent: January 29, 2019
    Assignee: FUJIFILM Corporation
    Inventors: Makoto Kobori, Yoshiaki Ishii, Naoki Sasaki
  • Patent number: 10126530
    Abstract: Fabricating a wafer-scale spacer/optics structure includes replicating optical replication elements and spacer replication sections directly onto an optics wafer (or other wafer) using a single replication tool. The replicated optical elements and spacer elements can be composed of the same or different materials.
    Type: Grant
    Filed: September 21, 2016
    Date of Patent: November 13, 2018
    Assignee: Heptagon Micro Optics Pte. Ltd.
    Inventors: Simon Gubser, Hakan Karpuz
  • Patent number: 10104347
    Abstract: An optical device includes a light modulation device disposed on an optical axis of incident light, and a holding section configured to hold the light modulation device. The holding section includes an inflow part to which a liquid supplied from an outside of the holding section inflows, a flow channel forming part disposed along a circumferential edge of the light modulation device so as to have an annular shape, and having a flow channel through which the liquid flowed from the inflow part circulates, and an outflow part from which the liquid having flowed through the flow channel outflows to the outside of the holding section.
    Type: Grant
    Filed: November 16, 2017
    Date of Patent: October 16, 2018
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Kensaku Matsumoto, Kaname Nagatani
  • Patent number: 10088654
    Abstract: This invention provides a lens device and a correction method therefor whereby the focal position of the lens device can be corrected with high accuracy even if a lens surface shape or the like is not uniform. A ring-shaped lens fixing frame 52 is mounted on the outer periphery of a lens 51. A gear 53 is formed on the lens fixing frame 52 in the circumferential direction. A gear 54, which engages with the gear 53, is rotated by a motor 20A. Then, the lens 51 rotates about the optical axis L thereof. Further, a rack 57, which extends in the direction of the optical axis L, is formed on a part of the lens fixing frame 52. A pinion 58 engages with the teeth 57A of the rack 57, and the pinion 58 is rotated by another motor 20B. Then, the rack 57 moves in the direction of the optical axis L, and thus the lens 51 moves in the direction of the optical axis L.
    Type: Grant
    Filed: August 4, 2016
    Date of Patent: October 2, 2018
    Assignee: FUJIFILM Corporation
    Inventor: Shinichi Shimotsu
  • Patent number: 10061100
    Abstract: A zoom lens device includes a focusing lens group arranged on an object side, and a variator lens group next thereto, and a temperature sensor. The focusing lens group includes a focusing lens, and a temperature-based correction lens for correcting changes in focal point caused by temperature changes around the focusing lens group. The temperature-based correction lens is moved by a temperature-based correction lens driving mechanism along an optical axis to a position determined by a temperature detected by the temperature sensor, independently of the positions of the focusing lens or variator lens group. Thereby, the zoom lens device is capable of favorably correcting defocus of the lens group caused by an ambient temperature change with a simple correcting mechanism.
    Type: Grant
    Filed: July 22, 2014
    Date of Patent: August 28, 2018
    Assignee: YAMANO OPTICAL CO., LTD.
    Inventor: Shiro Yamano
  • Patent number: 10043128
    Abstract: The present invention relates to a data carrier, especially a security document, such as an identification card, e.g. a passport or a driving license, a credit card and a bank card, the data carrier comprising authentication data comprising personalized data, and as a security feature, an array of lenticular elements being arranged to provide only from predetermined angles of view an image of at least a piece of authentication data of said authentication data. In or to make the data carrier impossible or at least very difficult to copy and forge, the array of lenticular elements is provided with a complex structure providing a further security feature.
    Type: Grant
    Filed: March 13, 2015
    Date of Patent: August 7, 2018
    Assignee: GEMALTO SA
    Inventors: Mikko Lankinen, Kristian Lappalainen, Teemu Pohjola, Jukka Mösky
  • Patent number: 9964720
    Abstract: The temperature at different locations along a multiplexed laser array may be monitored by sensing temperature at two locations within a transmitter optical subassembly (TOSA) package housing the laser array. The temperature at the two locations is used to determine a temperature tilt across the laser array. Estimated temperatures may then be determined at one or more other locations along the laser array from the temperature tilt. The estimated temperature(s) may then be used to adjust the temperature proximate the other locations, for example, for purposes of tuning lasers at those locations along the laser array to emit a desired channel wavelength. The TOSA package may be used in an optical transceiver in a wavelength division multiplexed (WDM) optical system, for example, in an optical line terminal (OLT) in a WDM passive optical network (PON).
    Type: Grant
    Filed: June 4, 2014
    Date of Patent: May 8, 2018
    Assignee: Applied Optoelectronics, Inc.
    Inventors: Jun Zheng, Yi Wang, I-Lung Ho, Chong Wang
  • Patent number: 9897773
    Abstract: An auto-focus actuator unit including a lens carrier slidably received within a stationary housing frame for a reciprocating motion provided by an actuator is described. The housing frame being carried by a bottom plate provided with an opening, in correspondence with one or more lenses carried by the lens carrier, and with a dust barrier projecting towards the lens carrier and having such a height as to maintain a vertical overlap with the lens carrier over the whole travel of the latter.
    Type: Grant
    Filed: September 3, 2015
    Date of Patent: February 20, 2018
    Assignee: ACTUATOR SOLUTIONS GMBH
    Inventors: Yusuke Suzuki, Ray Hu, Alex Chen
  • Patent number: 9798098
    Abstract: An optical module includes: a butterfly-type optical device including a body that contains a heating element in an interior space, a lid body that puts a lid on the interior space, and a plurality of pins; a substrate including a connecting surface to which the plurality of pins are connected; and a heat-dissipating component arranged to the connecting surface side, wherein the optical device is connected to the connecting surface with a heat-dissipating surface, of a part that has been arranged with the heating element, oriented to the heat-dissipating component side, and with a gap provided to a side of the lid body opposite to a side of the interior space.
    Type: Grant
    Filed: August 22, 2016
    Date of Patent: October 24, 2017
    Assignee: FUJIKURA LTD.
    Inventors: Hiroyuki Tanabe, Yoshiharu Fujisaku, Masaaki Umezawa
  • Patent number: 9753245
    Abstract: An optical lens device forms a condenser lens having a first lens of a positive focal length and a second lens of a negative focal length. The first and second lenses are stacked with their optical axis aligned. The first lens has a lens section, edge section and glass member having a linear expansion coefficient smaller than that of the lens section and the edge section to suppress shape change of the first lens due to temperature change of the first lens. The second lens, which is stacked with the first lens, is used for offsetting a change of the positive focal length generated in the first lens when the temperature varies. The glass member having a small linear expansion coefficient suppresses that shape change of the first lens which is not compensated by the second lens.
    Type: Grant
    Filed: June 26, 2014
    Date of Patent: September 5, 2017
    Assignee: DENSO CORPORATION
    Inventors: Yasuki Furutake, Toshihiko Takahata
  • Patent number: 9465187
    Abstract: Techniques are disclosed for systems and methods to provide thermal despace compensation for optics assemblies, such as devices including one or more lenses and/or optical devices. A thermal despace compensation system may include one or more interfaces substantially situated between optical devices that expand and contract with changing temperature according to their coefficients of thermal expansion (CTEs). Each interface may be implemented with one or more shapes and/or interfaces adapted to provide a compensation despace to compensate for thermal expansion and contraction and/or reduce optical defects caused by changes in temperature of the various optical devices.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: October 11, 2016
    Assignee: DIGITALOPTICS CORPORATION MEMS
    Inventor: Robert J. Calvet
  • Patent number: 9436101
    Abstract: An optical arrangement includes at least one optical element and a support element for the optical element. The optical element and the support element are connected together by way of at least three decoupling elements. The decoupling elements are formed monolithically with the optical element and with the support element.
    Type: Grant
    Filed: February 28, 2012
    Date of Patent: September 6, 2016
    Assignee: Carl Zeiss SMT GmbH
    Inventors: Armin Schoeppach, Hans-Juergen Mann, Frank Eisert, Yim-Bun Patrick Kwan
  • Patent number: 9429733
    Abstract: An optical instrument for measuring has an a stabilization component for stably connecting an optical assembly and holder to at least one stabilization element that can be compressed in the gap. The stabilization element has, in an unmounted state, a thickness which is greater than the width of the gap, and the optical assembly, the holder and the stabilization component are configured and cooperate such that the stabilization element, which is positioned between optical assembly and holder, in a roughly positioned state, is compressed, by way of inserting the optical assembly into the holder, into the gap and is plastically deformed in the gap such that elastic forces act radially with respect to the optical axis between assembly and holder and the assembly and the holder are disposed in the radial direction in a stabilized state with respect to one another.
    Type: Grant
    Filed: September 20, 2011
    Date of Patent: August 30, 2016
    Assignee: HEXAGON TECHNOLOGY CENTER GMBH
    Inventors: Claudio Iseli, Jochen Scheja
  • Patent number: 9417422
    Abstract: A rigid adaptor ring for coefficient of thermal expansion (CTE) mismatched optical device components is disclosed. In one embodiment, either side of the rigid adaptor ring includes one or more mounting pads that are configured to interface between the CTE mismatched optical device components.
    Type: Grant
    Filed: August 23, 2012
    Date of Patent: August 16, 2016
    Assignee: BAE Systems Information and Electronic Systems Integration Inc.
    Inventor: Adam G. Butland
  • Patent number: 9413998
    Abstract: An image capturing module includes an image sensing unit, a housing frame, an actuator structure and a reflecting material. The image sensing unit includes an image sensing chip having a first horizontal top surface. The reflecting material is temporarily placed on the movable lens assembly of the actuator structure. The reflecting material has a second horizontal top surface. The distance from the laser light source to the first horizontal top surface is defined as a first horizontal distance, the distance from the laser light source to the second horizontal top surface is defined as a second horizontal distance, and a predetermined fixed focusing distance from the second horizontal top surface to the first horizontal top surface is obtained by subtracting the second horizontal distance from the first horizontal distance, for shortening the focusing time of the movable lens assembly relative to the image sensing chip.
    Type: Grant
    Filed: July 7, 2014
    Date of Patent: August 9, 2016
    Assignees: LITE-ON ELECTRONICS (GUANGZHOU) LIMITED, LITE-ON TECHNOLOGY CORPORATION
    Inventors: Ching Lung Jao, Chiang Yuan Chuang, Yu Te Chou
  • Patent number: 9400383
    Abstract: A light blocking plate is adapted for being installed on a lens wherein the lens has an optical portion and a positioning portion surrounding the optical portion. The light blocking plate includes an annular body which is formed with a through hole at a central portion thereof. The annular body has a first face and a second face. The annular body has an inner rim and an outer rim. The through hole is defined by the inner rim. One of the first face and the second face is adapted for being disposed on the positioning portion of the lens. The inner rim is formed with a plurality of notches so that the inner rim has a contour which is not smooth circular. Thus, halo disturbance can be reduced.
    Type: Grant
    Filed: December 10, 2014
    Date of Patent: July 26, 2016
    Assignee: Newmax Technology Co., Ltd.
    Inventor: Yung-Fu Liang
  • Patent number: 9341321
    Abstract: A lighting assembly includes a light source and a lens. The lens includes a light transmissive portion and an optic shield portion for blocking or redirecting at least a portion of light generated by the light source. The light source can include one or more light emitting diodes (LEDs). The optic shield can be painted on or otherwise applied to a portion of the lens. Alternatively, it can be integrally formed with the lens. The optic shield can be an opaque material for blocking light generated by the light source or can be a reflective material for reflecting light generated by the light source through the light transmissive portion of the lens. Methods for making an optic shield are also described.
    Type: Grant
    Filed: January 13, 2014
    Date of Patent: May 17, 2016
    Assignee: ABL IP Holding LLC
    Inventor: Mark Anthony Hand
  • Patent number: 9201209
    Abstract: An imaging device includes: a movable lens unit including at least one lens for converging light from a subject and a lens holder supporting the at least one lens; a body base supporting the movable lens unit so as to be capable of moving along a first direction and a second direction which are orthogonal to each other on a plane perpendicular to an optical axis of the at least one lens and along a third direction which is parallel to the optical axis of the at least one lens; an imager being supported by the body base for converting light transmitted through the movable lens unit to an electrical signal; a driving mechanism being provided on the movable unit and/or body base for driving the movable lens unit along the first, second, and third directions; and a plurality of strain detectors provided between the movable unit and the body base.
    Type: Grant
    Filed: June 14, 2012
    Date of Patent: December 1, 2015
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Kozo Ezawa, Takeshi Shimamoto, Teruyuki Takizawa
  • Patent number: 9176298
    Abstract: Embodiments of the invention are directed to a springless athermal lens assembly. In one embodiment, a spacer of a springless athermal lens assembly may compensate for defocus of the camera system due to thermal expansion of the lens assembly through micro wedge mechanisms coupling the spacer to an inner and outer barrel. The inner barrel comprises a lens cell assembly and a body having a micro wedge slot. The outer barrel comprises a body having a micro wedge slot. The spacer comprises an inner barrel micro wedge and an outer barrel micro wedge. The spacer is configured to be physically coupled to the inner barrel through engagement of the inner barrel micro wedge and the inner barrel micro wedge slot. Further, the spacer is configured to be physically coupled to the outer barrel through the engagement of the outer barrel micro wedge and the outer barrel micro wedge slot.
    Type: Grant
    Filed: October 9, 2013
    Date of Patent: November 3, 2015
    Assignee: DRS Network & Imaging Systems, LLC
    Inventors: Eric J. Gustafson, Jeff R. Emmett, Rachel L. Cooper, Samuel E. Ivey, Rohan G. Rodney, Brian R. Pekarek, Patrick J. Cronkite, Mark E. Durham
  • Patent number: 9134501
    Abstract: There is provided an optical element unit comprising an optical element, a connector element, and an optical element holder. The optical element has a plane of main extension as well as an outer circumference and defines a radial direction. The connector element connects the optical element and the optical element holder, the connector element having a first connector part connected to the optical element at the outer circumference and a second connector part connected to the optical element holder. The first connector part and the second connector part are connected via at least one coupling part, the coupling part being compliant in the radial direction and substantially preventing rotation between the first connector part and the second connector part in a plane substantially parallel to the plane of main extension.
    Type: Grant
    Filed: September 14, 2007
    Date of Patent: September 15, 2015
    Assignee: Carl Zeiss SMT GmbH
    Inventors: Dirk Schaffer, Willi Heintel, Hagen Federau, Joachim Hartjes, Harald Kirchner
  • Patent number: 9116345
    Abstract: A lens unit may include at least four lens groups and a tube-shaped holder holding the lens groups. The tube-shaped holder is provided with a second lens group holding part provided with a protruded part surrounding an outer peripheral end part of the second lens group through a gap space and the protruded part is provided with a caulked part which is deformed so as to cover the outer peripheral end part from the object side. The protruded part may be provided with a thick portion and a thin portion extended to the front side from the thick portion and the thin portion is caulked by being plastically deformed to be the caulked part. After the second lens group is mounted on an inner side to the protruded part, the position of the second lens group is adjusted and then a caulked part is formed.
    Type: Grant
    Filed: October 30, 2013
    Date of Patent: August 25, 2015
    Assignee: NIDEC SANKYO CORPORATION
    Inventors: Tadashi Komiyama, Toshio Shirotori
  • Patent number: 9063265
    Abstract: A lens cap for an optical module includes: a barrel of a metal material; and a press lens of glass and held in the barrel. The coefficient of linear expansion of the glass is 6 to 8 ppm/K, and the coefficient of linear expansion of the metal material is at least 10 ppm/K at 150° C. to 800° C. and no more than 8 ppm/K at up to 100° C. or below.
    Type: Grant
    Filed: June 6, 2014
    Date of Patent: June 23, 2015
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Akihiro Matsusue, Koichi Nakamura
  • Patent number: 9036158
    Abstract: A pattern projector, comprising a light source, configured to emit a beam of light. A transparent substrate, which has a pair of mutually-opposed planar surfaces is configured to receive and propagate the beam within the substrate by total internal reflection between the planar surfaces. The transparent substrate comprises a diffractive structure that is formed on one of the planar surfaces and is configured to direct at least a part of the beam to propagate out of the substrate in a direction that is angled away from the surface and to create a pattern comprising multiple interleaved light and dark areas.
    Type: Grant
    Filed: August 8, 2011
    Date of Patent: May 19, 2015
    Assignee: Apple Inc.
    Inventor: Benny Pesach
  • Patent number: 8995066
    Abstract: Disclosed herein is an apparatus for providing passive correction for thermal effects on a mounted mechanical component. Further disclosed is a wafer inspection system employing the passive thermal effect correction apparatus.
    Type: Grant
    Filed: September 6, 2011
    Date of Patent: March 31, 2015
    Assignee: KLA-Tencor Corporation
    Inventors: Paul Doyle, Alexander Belyaev
  • Publication number: 20150085388
    Abstract: An optical module and a manufacturing method thereof are provided which can improve positioning accuracy between parts. A barrel and a lens holder are prepared, the lens holder is fitted into a cylindrical portion from a collar portion side of the barrel, and the barrel and the lens holder are assembled. In this case, the barrel and the lens holder are assembled with a brazing material inserted therebetween. The assembled barrel and lens holder are heated, and the brazing material is melted to thereby perform brazing. Lens glass is sandwiched between metal dies and a lens is press-molded using a pressing apparatus. In this case, positioning of press molding is performed using the barrel for which a small linear expansion coefficient is set as a reference.
    Type: Application
    Filed: June 2, 2014
    Publication date: March 26, 2015
    Applicant: Mitsubishi Electric Corporation
    Inventors: Akihiro Matsusue, Koichi Nakamura, Hidekazu Kodera
  • Publication number: 20150077871
    Abstract: A lens cap for an optical module includes: a barrel of a metal material; and a press lens of glass and held in the barrel. The coefficient of linear expansion of the glass is 6 to 8 ppm/K, and the coefficient of linear expansion of the metal material is at least 10 ppm/K at 150° C. to 800° C. and no more than 8 ppm/K at up to 100° C. or below.
    Type: Application
    Filed: June 6, 2014
    Publication date: March 19, 2015
    Inventors: Akihiro Matsusue, Koichi Nakamura
  • Publication number: 20150063764
    Abstract: Lens assemblies including a substrate and a plurality of mechanically isolated lenses coupled to the substrate are disclosed. The substrate may have a low coefficient of thermal expansion. Optical connectors including the lens assemblies described herein, as well as methods of fabricating a lens assembly, are also disclosed. In one embodiment, a lens assembly includes a substrate having a first surface, and a lens layer including a plurality of lenses. A coefficient of thermal expansion of the substrate is different from a coefficient of thermal expansion of the plurality of lenses. The lens layer is coupled to the first surface of the substrate, and each lens of the plurality of lenses is mechanically isolated from adjacent lenses of the plurality of lenses by gap regions within the lens layer.
    Type: Application
    Filed: September 5, 2013
    Publication date: March 5, 2015
    Applicant: Corning Cable Systems LLC
    Inventors: Micah Colen Isenhour, Dennis Michael Knecht, James Phillip Luther
  • Publication number: 20150055233
    Abstract: A thermally compensated optical subassembly having a rotationally symmetrical optical element and a monolithic mount with a rotationally symmetrical mounting ring, having an axis of symmetry, and at least three connection units. The optical element communicates with the mounting ring via the connection units, so as to be secured against tilting and fixed with respect to torsion. The connection units, in each instance, have three couplers which have a determined length ratio with respect to one another and are connected to one another and to the mounting ring and optical element such that defined conditions are met.
    Type: Application
    Filed: August 20, 2014
    Publication date: February 26, 2015
    Inventors: Torsten ERBE, Lutz REICHMANN
  • Publication number: 20150042970
    Abstract: A mirror assembly (32) for directing a beam (28) includes a base (450), and an optical element (454) that includes (i) a mirror (460), (ii) a stage (462) that retains the mirror (460), (iii) a mover assembly (464) that moves the stage (462) and the mirror (460) relative to the base (450), and (v) a thermally conductive medium (466) that is positioned between the stage (462) and the base (450) to transfer heat between the stage (462) and the base (450). The thermally conductive medium (466) has a thermal conductivity that is greater than the thermal conductivity of air. The thermally conductive medium (466) can include an ionic fluid or a liquid metal.
    Type: Application
    Filed: March 7, 2013
    Publication date: February 12, 2015
    Applicant: NIKON CORPORATION
    Inventors: Christopher Margeson, Travis Bow
  • Patent number: 8919724
    Abstract: A mount for a mountable element includes a frame, and a plurality of flexures supported by the frame. The plurality of flexures are configured to be outwardly extended against a restorative bias, so that the element can be inserted therebetween. The mount further includes a plurality of intermediate bonds that may be inserted between the plurality of flexures and the element while the plurality of flexures are outwardly extended. Among other things, a system and method mounting the element are also disclosed.
    Type: Grant
    Filed: August 24, 2010
    Date of Patent: December 30, 2014
    Assignee: Raytheon Company
    Inventors: Anjali Rangaswamy, Geoffrey A. Long, Kelly L. Jung, Gregory L. Klotz
  • Patent number: 8917440
    Abstract: An active optical device is provided. The active optical device includes an optically variable layer having a refractive index which changes according to temperature; and a temperature control unit that controls a temperature of one or more regions of the optically variable layer.
    Type: Grant
    Filed: April 21, 2011
    Date of Patent: December 23, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sun-il Kim, Jun-hee Choi, Jong-min Kim
  • Patent number: 8917462
    Abstract: An optical transmission module includes a light source element for emitting a predetermined light signal transmitted through an optical fiber, the light source element having lower characteristics in a low-temperature state than those in a high-temperature state, a driver circuit for driving the light source element, and a heat transfer member connected to each of the light source element and the driver circuit to transfer heat between the light source element and the driver circuit. The optical transmission module with such configuration can stably operate in a wide temperature range while achieving power saving and cost reduction.
    Type: Grant
    Filed: August 9, 2011
    Date of Patent: December 23, 2014
    Assignee: SAE Magnetics (H.K.) Ltd.
    Inventor: Takemasa Tamanuki
  • Publication number: 20140340771
    Abstract: The present invention provides a lens barrel applicable to digital cameras, image pickup devices and cell phones. The lens barrel is small, low-cost and high-performance, and can suppress, by means of a simple mechanism provided in the lens barrel, a variation in the focal position of the lens barrel caused by the change in temperature. The lens barrel comprises a lens group consisting of a plurality of lenses and a lens chamber for holding the lens group. An elastic member is provided between a set of adjacent lenses of the lens group, for urging the set of adjacent lenses in an optical axis direction of the lenses.
    Type: Application
    Filed: May 14, 2013
    Publication date: November 20, 2014
    Applicant: JCD (Guang Zhou) Optical Corporation Limited
    Inventors: Hiroshi Wakabayashi, Takehiro Kano, Bo Chen
  • Patent number: 8891184
    Abstract: The illustrative embodiment of the present invention is an apparatus and method that is capable of non-contact cooling of a hot body by optically-enhanced radiation. An apparatus in accordance with the illustrative embodiment includes a cold body and an optical system. The optical system couples the cold body to a hot body for the transmission of infrared radiation. Once optically coupled, heat will flow, at an enhanced rate, from the hot body to the cold body, as dictated by thermodynamics, thereby cooling the hot body. In some embodiment, the temperature of the cold body is held substantially constant.
    Type: Grant
    Filed: May 21, 2003
    Date of Patent: November 18, 2014
    Assignee: TechElan, LLC
    Inventor: Ilya Feygin
  • Patent number: 8861101
    Abstract: A lens-mounting structure according to the present invention is a lens mounting structure that glues a lens and a mounting surface of a support portion that supports the lens using an adhesive agent applied there between, to mount the lens to the support portion, characterized by setting a gluing surface area of the mounting surface of the support portion and the adhesive agent to be smaller than a gluing surface area of the lens and the adhesive agent.
    Type: Grant
    Filed: April 20, 2011
    Date of Patent: October 14, 2014
    Assignee: Kyocera Document Solutions Inc.
    Inventors: Issei Nakano, Chika Sawamoto
  • Patent number: 8861102
    Abstract: A control method is provided for controlling a heating of a thermal optical element, the thermal optical element having a matrix of heater elements. The method includes stabilizing a nominal temperature of the thermal optical element with a feedback loop to control the heating of heater elements; providing a desired temperature profile of the thermal optical element by a set point signal; determining a feedforward control of the heater elements from the set point signal; and forwardly feeding an output of the feedforward control into the feedback loop.
    Type: Grant
    Filed: July 21, 2011
    Date of Patent: October 14, 2014
    Assignee: ASML Netherlands B.V.
    Inventors: Bastiaan Stephanus Hendricus Jansen, Ulrich Schönhoff, Markus Hauf
  • Patent number: 8830601
    Abstract: An optical instrument with temperature-related focal length variations compensation mechanism is provided herein. The optical instrument includes: a housing within a bore of the optical instrument, wherein the bore and the housing have each a distal end and a proximal end; a set of lenses located on a common optical axis and affixed within the housing, wherein the set of lenses is associated with a specified focal length for each specified temperature; and a temperature compensation member connecting the distal end of the housing to the distal end of the bore of the optical instrument, wherein the temperature compensation member comprises one or more sections whose thermal expansion coefficient and length along the optical axis are selected such that for a specified range of temperatures, the expansion of the temperature compensation member along the optical axis compensates for a change of the focal length of the lenses.
    Type: Grant
    Filed: December 21, 2012
    Date of Patent: September 9, 2014
    Assignee: Opgal Optronic Industries Ltd.
    Inventor: Shimon Aburmad
  • Patent number: 8829416
    Abstract: The invention relates to a passive mechanical athermalization device, comprising: a barrel (1) that is made of a first material having a first thermal expansion coefficient (11) and that has a longitudinal axis (AA), said barrel comprising at least one first portion (11) and at least one second portion (12), the device being characterized in that it comprises: at least three beams (7) made of the first material, each of the beams (7) circumferentially connecting the first portion (11) and the second portion (12) relative to the longitudinal axis (AA); at least three bars (8) made of a second material having a second thermal expansion coefficient (12) that is different from the first thermal expansion coefficient, circumferentially distributed around the barrel (1) relative to the longitudinal axis (AA), each bar (8) axially connecting the first portion (11) and the second portion (12) relative to the longitudinal axis (AA) such that the thermal expansion of the barrel (1) results in a deformation of the beams
    Type: Grant
    Filed: July 12, 2011
    Date of Patent: September 9, 2014
    Assignee: Sagem Defense Securite
    Inventor: Lucien Donce
  • Patent number: 8792191
    Abstract: A two-axis, optical mount provides two flexural elements monolithically and homogeneously formed of a single material with, and interconnecting, three rigid segments. Between each pair of rigid segments, beginning with the first and second, a set of extensions is formed to have a cross section that permits simple, easy, independent adjustment therebetween. Likewise, a flexural element exists between the second and third rigid elements. Meanwhile, the rigid elements have section moduli sufficiently great as to be orders of magnitude larger than the flexural stiffness or section modulus of the flexural elements, thus providing flexures that operate in the elastic mode and introduce no joint type accuracy errors in adjustment.
    Type: Grant
    Filed: May 10, 2013
    Date of Patent: July 29, 2014
    Assignee: Utah State University Research Foundation
    Inventors: Gregory Hopkins, Blake Crowther, Kendall Johnson, Vaughn A. Griffiths