Lens Or Prism Patents (Class 451/390)
  • Patent number: 9688033
    Abstract: An apparatus and a method for processing an optical lens, whereby a block piece for the lens is first processed by cutting and then is provided with markings for positioning the lens on the block piece.
    Type: Grant
    Filed: November 21, 2011
    Date of Patent: June 27, 2017
    Assignee: Schneider GmbH & Co. KG
    Inventors: Gunter Schneider, Helwig Buchenauer
  • Patent number: 9533725
    Abstract: A plant including: an assembly line along which a plurality of pallets are circulated in a closed loop, divided into a first section, where the pallets are loaded in a plurality of first stations with mechanical parts to be assembled, and into a second section, where the pallets advance along a plurality of second stations; a conveyor arranged at least partially parallel to and above the second section, along which a plurality of balance supports provided with bodies run; a coupling station, arranged immediately upstream of the second section, where the pallets are integrally coupled to the balance supports; and a decoupling station, where the pallets are separated from the balance supports; each pallet having selectively engageable and releasable fastening means for a balance support and elastic means able to receive the balance support resting thereon.
    Type: Grant
    Filed: March 19, 2013
    Date of Patent: January 3, 2017
    Assignee: CPM S.p.A.
    Inventor: Massimo Bellezza
  • Patent number: 9254615
    Abstract: A method of manufacturing an optical lens, the method comprising the steps of blocking a lens member at a first position on a blocker; determining the first position of the lens member with respect to the blocker; comparing the first position of the lens member with a predetermined position in order to determine a positioning error between the first position and the predetermined position; determining a surface position of the surface to be manufactured with respect to the blocker according to the positioning error; and configuring operational parameters of a lens manufacturing tool in order to manufacture a surface according to the determined surface position such that the desired optical properties of the optical lens are respected. The invention further relates to an apparatus for manufacturing an optical lens.
    Type: Grant
    Filed: December 22, 2009
    Date of Patent: February 9, 2016
    Assignee: ESSILOR INTERNATIONAL (COMPAGNIE GENERALE D'OPTIQUE)
    Inventor: Alexandre Gourraud
  • Patent number: 9030671
    Abstract: A measuring assembly for measuring an inside of a lens frame of a spectacle frame, said lens frame at least partially delimiting an inscribed surface area F that corresponds to a lens shape, comprising a holding device for mounting the spectacle frame, at least one light source for generating a light beam to be projected on a region of the lens frame to be evaluated, and at least one sensor that can be coupled to an evaluation unit for detecting the reflected light beam, wherein the holding device can be rotated about a rotational axis r and moved in the direction of a movement axis x, and the movement axis x comprises at least one movement component in a direction perpendicular to the rotational axis r. The holding device is used to fix the spectacle frame by spectacle frame bows, wherein at least one free space is provided in the region of the holding device, said free space being used to receive the spectacle frame bows of a spectacle frame to be held which are not folded in or cannot be folded in.
    Type: Grant
    Filed: March 3, 2011
    Date of Patent: May 12, 2015
    Assignee: Schneider GmbH & Co. KG
    Inventors: Gunter Schneider, Torsten Gerrath, Ulf Boerner
  • Publication number: 20150087206
    Abstract: A lens processing system used for removing a lens blank (98, 110) from an edging block (40). The system includes an elongated collet (22) that engages the mating edging block (40). The block (40) includes an enlarged groove (41) that receives a pair of blades (65, 66) extended upwardly from the floor (75) of the collet (22). Each lens blank (98,110) is formed to include a series of surface markings (191,192) to verify proper functioning of the edging machine that forms a finished lens. Each lens blank also includes a series of circular markings (117,133) arranged in diagonal rows to verify the accurate drilling of bores with the lens blank (98,110).
    Type: Application
    Filed: September 26, 2013
    Publication date: March 26, 2015
    Inventor: JAMES GREGORY GOERGES
  • Patent number: 8951097
    Abstract: Method for mounting an optical lens (10) to be polished on a spindle (20) of a polishing device, the optical lens (10) comprising a first and a second main surface (101, 102), the method comprising: an optical lens (10) providing step (S1), in which an optical lens (10) whose first main surface (101) is to be polished is provided, a mounting step (S2), in which the optical lens (10) is mounted on the spindle (20), wherein, the mounting step (S2) further comprises a support device positioning step (S3), in which a support device (30) is positioned between the spindle (20) and the second surface (102) of the optical lens (10) so as to be rotated by the spindle (20) and to have a contact surface (31) partly in contact with the second main surface (102) of the optical lens (10) that partly extends beyond the second main surface (102) of the optical lens (10).
    Type: Grant
    Filed: December 22, 2010
    Date of Patent: February 10, 2015
    Assignee: Essilor International (Compagnie Generale d'Optique)
    Inventor: Eric Gacoin
  • Publication number: 20150024664
    Abstract: A system includes a positioning and centering pin (4) configured to be attached to an ophthalmic lens, an attachment member (5) configured to be positioned on and attached to the pin and to be attached to the lens, a tool (20) for positioning the attachment member on the pin, and which includes a body (42) provided with at least one receiving recess configured to at least partially receive at least one of the attachment members and the pin, at least one centering member (48, 56) and at least one guide member (48, 57), which are configured such that, when the attachment member and the pin are mounted on the tool, the attachment member is centered relative to the body and the pin is guided relative to the body, whereby the attachment member is positioned in a predetermined position on the pin.
    Type: Application
    Filed: February 19, 2013
    Publication date: January 22, 2015
    Applicant: ESSILOR INTERNATIONAL (COMPAGNIE GENERALE D'OPTIQUE)
    Inventor: Bernard Brechemier
  • Publication number: 20140329442
    Abstract: The invention provides for a blocking piece comprised of at least two materials having different rigidity/stiffness/hardness, wherein at least one among the two materials is translucent and defines an annular junction surface with respect to the other material. The invention also provides for a process using such a block piece.
    Type: Application
    Filed: May 2, 2014
    Publication date: November 6, 2014
    Inventor: Marc Savoie
  • Publication number: 20140329443
    Abstract: The invention refers to a blocking piece, comprising at least two parts, at least one part being designed for multiple use and at least one part being designed for single use, wherein a surface for supporting one face of an optical article to be blocked is constituted at least in part by the reusable part and at least in part by the single use part.
    Type: Application
    Filed: May 2, 2014
    Publication date: November 6, 2014
    Inventor: Marc Savoie
  • Patent number: 8870628
    Abstract: The invention discloses a device (10) for clamping particularly an eye glass lens blocked on a block piece for processing and/or coating said eye glass lens, comprising a receiving space (34) having a center line (M) for a clamping section of the block piece, and a plurality of clamping surfaces (36) provided in a boundary region of the receiving space, which may optionally be engaged in the clamping section of the block piece in order to clamp the block piece. In order to avoid excessive deformation of the clamped block piece, the clamping surfaces are positioned opposite of each other in pairs at a radial distance to the center line and can be displaced optionally toward or away from each other by a clamping piece (38) in order to clamp the clamping section of the block piece by way of clamping forces (F), which are substantially oriented in a tangential direction at a radial distance to the center line, or in order to release the block piece.
    Type: Grant
    Filed: October 13, 2009
    Date of Patent: October 28, 2014
    Assignee: Satisloh AG
    Inventors: Holger Schäfer, Herbert Wagner, Edward McPherson, Marc Savoie
  • Publication number: 20140315472
    Abstract: A blocking device and a method for blocking of eyeglass lenses on blocking pieces with a base body, with a blocking piece receiver which is located on the base body for the blocking piece which is to be attached to the eyeglass lens and with a positioning unit which is located on the base body for aligning and holding the eyeglass lens which is to be blocked, the blocking piece receiver and the positioning unit can be fixed on the eyeglass lens by activation being movable relative to one another via a lifting axis, the approach motion between the positioning unit and the blocking piece receiver being limited in the direction of the lifting axis by an adjustable stop means in at least two positions.
    Type: Application
    Filed: November 23, 2012
    Publication date: October 23, 2014
    Inventors: Gunter Schneider, Ulf Börner
  • Patent number: 8758096
    Abstract: A glass setting plate for a glass polishing system supports a lower surface of a glass in a glass polishing system for polishing a glass used for liquid crystal displays. The glass setting plate is made of a composite material obtained by molding and curing a mixture of granite particles and thermosetting resin.
    Type: Grant
    Filed: October 7, 2010
    Date of Patent: June 24, 2014
    Assignee: LG Chem, Ltd.
    Inventors: Won-Jae Moon, Sang-Oeb Na, Hyung-Young Oh
  • Patent number: 8708776
    Abstract: Polishing machines, fixtures and methods for polishing one or more optical fibers upon distinct wear paths are provided. For example, in some embodiments a polishing fixture is provided with a number of ports for fixing optical fibers. The ports may be positioned within the fixture to follow a number of distinct wear paths when the fixture is moved relative to a platen retaining an abrasive film. In some embodiments, the ports may have an angular separation or be positioned at one or more radial distances in order to provide distinct wear paths on the abrasive film.
    Type: Grant
    Filed: December 3, 2009
    Date of Patent: April 29, 2014
    Assignee: Domaille Engineering, LLC
    Inventor: James T. Frazer
  • Patent number: 8690639
    Abstract: An aspect of the present invention relates to a method of manufacturing an eyeglass lens, which comprises a step of conducting polishing processing of a non-optical surface of a semifinished lens, one surface of which is an optical surface and the other surface of which is the non-optical surface, to create an optical surface. The semifinished lens comprises an acrylic coating on an optical surface of a lens substrate, a surface of the acrylic coating having a contact angle relative to water of equal to or less than 90°, prior to the polishing processing, a protective film is adhered through an adhesive layer of the film to the surface of the acrylic coating, and the polishing processing is conducted by polishing a non-optical surface of the lens substrate in a state where the protective film surface is secured in a block jig.
    Type: Grant
    Filed: February 21, 2012
    Date of Patent: April 8, 2014
    Assignee: Hoya Corporation
    Inventor: Eiichi Yajima
  • Publication number: 20140038500
    Abstract: An ophthalmic-lens holder (200) includes a plate (210) and three pads (250) which are mounted on the plate and rise up above the latter to offer free ends (271) via which they can bear the ophthalmic lens. At least one of the three pads is movably mounted on the plate.
    Type: Application
    Filed: March 8, 2012
    Publication date: February 6, 2014
    Applicant: ESSILOR INTERNATIONAL (COMPAGNIE GENERALE D'OPTIQUE)
    Inventors: Bernard Brechemier, Stephane Boutinon, David Tang
  • Patent number: 8616150
    Abstract: A device for blocking workpieces for the processing and/or coating thereof, has a support surface for positioning the workpiece to be blocked, a blocking station in which the workpiece can be blocked on a blocking piece by a temporarily deformable blocking material, and a transport device which has a retaining head for the workpiece and by which a relative movement can be created between the workpiece being retained at the retaining head, and the support surface and the blocking station. The transport device has at least four position-controlled movement axes, by which to position the workpiece in a defined manner in consideration of the orientation and geometric information relative to a blocking piece located in the blocking station, and can be retained in the defined relative position to the blocking piece during blocking while leaving a blocking material accommodation gap between the workpiece and the blocking piece.
    Type: Grant
    Filed: May 11, 2009
    Date of Patent: December 31, 2013
    Assignee: Satisloh AG
    Inventors: Marc Savoie, Holger Schäfer, Steffen Wallendorf, Peter Jost, Jochen Wagner
  • Publication number: 20130303060
    Abstract: A block piece for holding an optical lens to be worked in a machine tool, the block piece having a rotational axis 1.1, a holding surface that can be made to face the lens and a bearing surface that is directed radially outwards and can be brought to bear in a workpiece spindle, wherein the holding surface has at least one recess 1.2a or a number of recesses 2.1-2.6, which are distributed around the rotational axis 1.1, have a diameter DA and serve for receiving bonding compound for adhesive bonding to the lens.
    Type: Application
    Filed: November 28, 2011
    Publication date: November 14, 2013
    Applicant: SCHNEIDER GMBH & CO. KG
    Inventors: Gunter Schneider, Ferdinand Achenbach
  • Patent number: 8460069
    Abstract: A lens holder (8) includes a metal holder main body (12) and an elastic member (14) which holds the processing center portion (13) of a processing target lens (7). The holder main body (12) has a fitting hole (20) formed at a front surface center. The elastic member (14) includes a fitting shaft portion (14A) to be slidably fitted in the fitting hole (20), and a lens holding portion (14B) integrally provided to the fitting shaft portion (14A). The front surface of the lens holding portion (14B) forms a lens holding surface (24) which holds the processing target lens (7). Before holding the processing target lens (7), a suitable gap (g) is formed between the front surface (18) of the holder main body (12) and the lens holding surface (24). When the lens holding surface (24) is urged against the processing target lens (7), the lens holding portion (14B) elastically deforms toward the rear surface and is urged against the front surface (18) of the holder main body (12).
    Type: Grant
    Filed: March 24, 2008
    Date of Patent: June 11, 2013
    Assignee: Hoya Corporation
    Inventor: Satoshi Annaka
  • Patent number: 8449351
    Abstract: A lower unit for a glass polishing system includes a support installed to a rotatable turntable, and a carrier having a supporting part for supporting a glass to be polished, and a placing part formed in a surface opposite to the supporting part and fixed and placed to the support.
    Type: Grant
    Filed: March 5, 2010
    Date of Patent: May 28, 2013
    Assignee: LG Chem, Ltd.
    Inventors: Won-Jae Moon, Sang-Oeb Na, Hyung-Young Oh, Yang-Han Kim, Young-Sik Kim, Kil-Ho Kim, Heui-Joon Park, Chang-Hee Lee, Dae-Yeon Lee, Jae-Ik Song, Wook Jeong, Young-Kuk Kim, Kyu-Chul Chung, Hyun-Chul Chung
  • Publication number: 20120329372
    Abstract: The invention relates to a system (1) for machining a bevel (32, 34) on a disk shaped part (31) including a grinding device (3) having abrasive means (4), a device (5) for securing the part (31) including a support (13) to which said part is fitted and which is integral with an axis of rotation (16). According to the invention, the securing device (5) further includes a means (15) of orienting the axis (16) of rotation (B) to define the angle of said one bevel (32, 34) and a means (17) of moving the support (13) closer to the abrasive means (4) in order to machining the part (13) under stress. The invention concerns the field of crystals for timepieces.
    Type: Application
    Filed: June 21, 2012
    Publication date: December 27, 2012
    Applicant: Comadur S.A.
    Inventors: Jean-Paul Tassetti, Christophe Vuillemin, Fabien Bez
  • Patent number: 8246419
    Abstract: A rolling machine includes a first clipping component, a second clipping component, a lifting component, and a holding assembly. The first clipping component has a first surface and a second surface opposite to the first surface. The second clipping component has a third surface configured to contact the first surface and a fourth surface opposite to the third surface. The lifting component is connected to the first clipping component and configured to drive the first clipping component to move back and forth. The holding assembly has a first and second holders configured to be symmetrically positioned on both sides of the first clipping component.
    Type: Grant
    Filed: November 18, 2008
    Date of Patent: August 21, 2012
    Assignee: Hon Hai Precision Industry Co., Ltd.
    Inventors: Chia-Ying Wu, Ching-Chou Chang
  • Patent number: 8177607
    Abstract: A locking device includes a rigid base (2) and a deformable pocket (3) containing a granular material (13). Discharging elements (4) are provided for gas exchange between the inside and the outside of the deformable pocket (3).
    Type: Grant
    Filed: December 26, 2006
    Date of Patent: May 15, 2012
    Assignee: Essilor International (Compagnie Generale d'Optique)
    Inventors: Patrick Herbin, Jean-Marie Keller
  • Patent number: 8157615
    Abstract: The invention relates to a device for applying and/or detaching a wafer to/from a carrier with a deformable membrane which can be aligned parallel to the contact surface of the wafer, with one contact side for at least partial contact-making with the contact surface, deformation means which are located backward to the contact side for deformation of the membrane which can be controlled in a defined manner and adhesion means for adhesion of the wafer to the membrane and process for detaching and/or applying a wafer to/from a carrier with a corresponding device.
    Type: Grant
    Filed: March 12, 2009
    Date of Patent: April 17, 2012
    Inventor: Erich Thallner
  • Publication number: 20120084967
    Abstract: This invention discloses a polishing jig air injection apparatus including a polishing jig installation base including a surface on which a spectacle lens polishing jig is placed, an injection member which is inserted into an air injection port of the spectacle lens polishing jig, and an air supply device which supplies the air into a balloon member of the spectacle lens polishing jig via the injection member and the air injection port. The injection member includes a main body formed in a pillar shape, and a seal member. The main body includes an air passage, and an annular groove formed in the outer circumferential portion of the main body. The seal member is inserted into the annular groove, is formed in an annular shape, and uses an elastic body. The seal member has an outer diameter larger than the inner diameter of the air injection port.
    Type: Application
    Filed: September 12, 2011
    Publication date: April 12, 2012
    Applicant: HOYA CORPORATION
    Inventors: Hideo Toriumi, Makoto Tajima, Kazuhiko Katagiri
  • Patent number: 8141220
    Abstract: The invention relates to a method for uncoupling the support and removing a protective film from lenses during production. The method consists of: a phase comprising the weakening of the layer (5) of fluxing material, specific to a matching support (4), with the application of a hot fluid in order to soften same; the lateral projection of a jet (7) of pressurized liquid onto the support (4) in order to detach said support; the lateral projection of an orientable pressurized jet (8) onto the edge of the lens (1) in order to raise the protective sheet (3) to be found on the front face of the lens and to detach same fully from the lens; and the draining of the lens (1) in order for same to be delivered to an outlet tray.
    Type: Grant
    Filed: June 28, 2007
    Date of Patent: March 27, 2012
    Assignee: Insomec Integra Soluciones, S.L.L.
    Inventor: Jose Guardia Aura
  • Patent number: 8128459
    Abstract: A holder for workpieces with end surfaces thereof being polished comprises a main body and a framework in which the main body is provided with a plurality of fixtures for holding the workpieces and the ring-shaped first supporting portion, and the framework is provided with the second supporting portion surrounding the outer side of the first supporting portion. The second supporting portion limits the angular movement of the first supporting portion to enable the main body to keep parallel to the polishing surface during the end surface of the respective workpiece is brought into contact with the polishing surface. The structure of the holder is capable of reducing the fabrication time and cost of the first supporting portion tremendously.
    Type: Grant
    Filed: May 5, 2008
    Date of Patent: March 6, 2012
    Inventor: Kow-Je Ling
  • Patent number: 8082756
    Abstract: Methods for edging optical articles comprising two main faces, at least one of which being coated with an outermost layer comprising fixing the optical article to a chuck with a holding pad that adheres to both the optical article and the chuck, wherein the surface of the holding pad contacting the optical comprises an adhesive material; and edging the optical article with an edging device; wherein prior to fixing the optical article to the chuck, at least one temporary layer of an organic material is formed onto said outermost layer of the optical article, the organic material of the temporary layer comprising at least one organic compound having a fluorinated functional moiety and at least one linking functional moiety capable of establishing at least one intermolecular bond or interaction with the adhesive material of the holding pad. Optical articles obtained via these methods.
    Type: Grant
    Filed: December 19, 2006
    Date of Patent: December 27, 2011
    Assignee: Essilor International Compagnie Generale d'Optique
    Inventors: Dominique Conte, Gérald Fournand, Agnès Jallouli, Laurianne Vagharchakian
  • Publication number: 20110217910
    Abstract: A chemical mechanical polishing apparatus includes a platen having a first region configured to support a wafer, and a second region disposed outside the first region. The chemical mechanical polishing apparatus further includes a polishing pad disposed on the platen, a pad head to which the polishing pad is attached, a slurry supply configured to supply a slurry onto the wafer, and an injection port disposing on the second region of the platen. The injection port is configured to inject a predetermined gas to an edge of a bottom surface of the wafer and toward the outside of the wafer.
    Type: Application
    Filed: February 24, 2011
    Publication date: September 8, 2011
    Inventors: One-Moon CHANG, Jae-Phil Boo, Jong-Bok Kim, Soo-Young Tak, Jong-Sun Ahn, Shin Kim
  • Patent number: 8002609
    Abstract: A method of manufacturing a ferrule assembly. The method including first and second polishing operations. The first polishing operation including polishing only the end face of a ferrule of an assembly. The second polishing operation including polishing only the optical fiber of the assembly.
    Type: Grant
    Filed: October 6, 2010
    Date of Patent: August 23, 2011
    Assignee: ADC Telecommunications, Inc.
    Inventor: Yu Lu
  • Patent number: 7997957
    Abstract: A process for edging an optical lens for conforming the optical lens to the size and shape of a lens frame into which the optical lens is to be accommodated, said process comprising: a) providing an optical lens having a convex surface, the convex surface being provided with an anti-smudge topcoat rendering the optical lens inappropriate for edging; b) fixing a mounting element on the convex surface of the optical lens, preferably on its center, by means of an adhesive pad adhering both to the mounting element and the convex surface of the optical lens to form a mounting element/optical lens assembly; c) placing the mounting element/optical lens assembly in a grinding machine so that the optical lens is firmly maintained; and d) edging the optical lens to the intended size and shape, wherein, prior to step (b) of fixing the mounting element, the anti-smudge topcoat on the convex surface of the optical lens is pre-treated with a solvent selected from the group consisting of alkanols and dialkylketones under a
    Type: Grant
    Filed: February 14, 2007
    Date of Patent: August 16, 2011
    Assignee: Essilor International Compagnie Generale d'Optique
    Inventors: Gerald Fournand, Agnes De Leuze-Jallouli, Bruce Keegan
  • Patent number: 7946325
    Abstract: A centering device (13) is arranged to surround a loading table (11) on which a lens blank (1) is to be set, to set the geometric center of the lens blank (1) to coincide with the center of the loading table (11). The centering device (13) includes three clamp pins (31) which press the peripheral surface of the lens blank (1). When centering is ended, the loading table (11) on which the lens blank (1) is set is pushed up by a moving device (12) from a centering position (H1) to a block position (H2), and a peripheral portion of the lens blank (1) on a concave surface side is urged against the lower surfaces of locking portions (31A) of clamp pins (31). After a predetermined amount of wax (4) is dripped onto the lens blank (1), a lens holding unit (2) is moved downward by a predetermined amount and urged against the wax on the lens blank (1) to spread the wax thin and let the wax to solidify. Thus, the lens blank (1) and lens holding unit (2) are bonded to each other.
    Type: Grant
    Filed: February 18, 2005
    Date of Patent: May 24, 2011
    Assignee: Hoya Corporation
    Inventors: Jun Kawakubo, Satoshi Annaka
  • Patent number: 7942726
    Abstract: A holder for supporting an end surface of a workpiece during polishing comprises a main body and a framework which are respectively provided with fixing portions corresponding to each other; at least one of the two fixing portions has at least one set of upper and lower contact portions, and the upper and the lower contact portions on each set are respectively disposed above and below a contact plane formed between the end surface of the workpiece and a polishing surface; when the upper and lower contact portions and another one of the fixing portions one another, the main body is capable of keeping parallel to the polishing surface, and the pressure acting on the end surface of each workpiece is capable of being approximately uniform. Hence, the number of end surfaces of the optical fibers can be increased tremendously during polishing so as to enhance the polishing speed and quality.
    Type: Grant
    Filed: June 22, 2007
    Date of Patent: May 17, 2011
    Inventor: Kow-Je Ling
  • Patent number: 7935402
    Abstract: An ophthalmic blocking pad includes a foam layer, a film layer disposed over and directly contacting the foam layer, and an adhesive layer disposed over the film layer. The film layer has a tensile strength of at least about 25 ksi (172 MPa).
    Type: Grant
    Filed: May 3, 2007
    Date of Patent: May 3, 2011
    Assignee: Saint-Gobain Performance Plastics Corporation
    Inventors: Todd W. Cole, Donald J. Therriault
  • Patent number: 7869147
    Abstract: A device or the operation of a device for the holding, especially sealing support of an optical element, especially an optical lens with at least one holding element for mounting the optical element and preferably at least one sealing element for sealing contact at at least a part of the optical element and/or the holding element, wherein the sealing element or at least a part thereof is displaceable between a first position, in which the sealing element rests against the optical element and a second position, in which the sealing element is spaced apart from the optical element, or wherein the sealing element is switchable such that it rests against the optical element under different contact pressure or adjustable contact force. The holding element can either take on the holding function alone and independently of the sealing element or work together with the sealing element in this regard.
    Type: Grant
    Filed: April 6, 2007
    Date of Patent: January 11, 2011
    Assignee: Carl Zeiss SMT GmbH
    Inventors: Tilman Schwertner, Stefan Hembacher
  • Patent number: 7833090
    Abstract: A method of manufacturing a ferrule assembly. The method including first and second polishing operations. The first polishing operation including polishing only the end face of a ferrule of an assembly. The second polishing operation including polishing only the optical fiber of the assembly.
    Type: Grant
    Filed: July 9, 2009
    Date of Patent: November 16, 2010
    Assignee: ADC Telecommunications, Inc.
    Inventor: Yu Lu
  • Patent number: 7789738
    Abstract: The present invention relates to a sheet for mounting a polishing workpiece. The sheet comprises a substrate, a surface layer and a slightly rough layer. The substrate has a surface. The surface layer is located on the surface of the substrate, with no hole structure existing in the interior thereof, and has a surface. The slightly rough layer is located on the surface of the surface layer to carry and mount the polishing workpiece, with no hole structure existing in the interior thereof. Accordingly, when the polishing workpiece contacts the slightly rough layer, the air therebetween is easily vented out via the slightly rough layer, without the phenomenon of air wrapping, which increases the adsorption force between the polishing workpiece and the sheet.
    Type: Grant
    Filed: July 3, 2006
    Date of Patent: September 7, 2010
    Assignee: San Fang Chemical Industry Co., Ltd.
    Inventors: Chung-Chih Feng, I-Peng Yao, Chen-Hsiang Chao
  • Publication number: 20100115752
    Abstract: A lens deblocking system (1) used for removing a lens (51) from an edging block (22). The system (1) includes opposed movable arms (4, 5) that are constrained to travel longitudinally within an aperture (3) so as to grip a lens (51) that is adhesively secured to an edging block by a pad (52). The edging block (22) is held within a clamp (11) that resides on a collet closer (63) which may be rotated by activating an air cylinder (82). A cam push block (91) is linked to file cylinder (82) as well as a cam arm (98) that is attached to a spindle (96) extending from the collet closer (63). In response to the movement of the push block (91) a rotational motion is imparted to the damp (11) via the cam arm (98). The rotation of the clamp (11) occurs while the tens (51) is still constrained against rotational movement between the movable arms (4, 5) thereby physically breaking the bond between the pad (52) arid the clamp (11) and permitting subsequent manual removal of the pad (52) from the lens (51).
    Type: Application
    Filed: November 8, 2008
    Publication date: May 13, 2010
    Inventor: James Gregory Goerges
  • Publication number: 20100112915
    Abstract: A lens holder (8) includes a metal holder main body (12) and an elastic member (14) which holds the processing center portion (13) of a processing target lens (7). The holder main body (12) has a fitting hole (20) formed at a front surface center. The elastic member (14) includes a fitting shaft portion (14A) to be slidably fitted in the fitting hole (20), and a lens holding portion (14B) integrally provided to the fitting shaft portion (14A). The front surface of the lens holding portion (14B) forms a lens holding surface (24) which holds the processing target lens (7). Before holding the processing target lens (7), a suitable gap (g) is formed between the front surface (18) of the holder main body (12) and the lens holding surface (24). When the lens holding surface (24) is urged against the processing target lens (7), the lens holding portion (14B) elastically deforms toward the rear surface and is urged against the front surface (18) of the holder main body (12).
    Type: Application
    Filed: March 24, 2008
    Publication date: May 6, 2010
    Inventor: Satoshi Annaka
  • Patent number: 7706032
    Abstract: A scanner device and an image forming apparatus, each having a shading correction unit are disclosed. The shading correction unit is implemented by a lens block, including a fixer and a wall. The fixer fixes a position of the lens block. The wall, connected to the fixer at a connecting point, has an opening. The minimum distance between the circumference line of the opening and the connecting point is larger than a thickness of the wall.
    Type: Grant
    Filed: May 9, 2005
    Date of Patent: April 27, 2010
    Assignee: Ricoh Company, Ltd.
    Inventor: Tetsuya Fujioka
  • Publication number: 20100033696
    Abstract: A method for producing an element having at least one arbitrarily freely formed surface (freeform surface) having a high accuracy of form and a low surface roughness. The freeform surface is obtained by at least one first processing step with a shaping material processing method in which at least an approximation to the desired freeform surface (target form) is effected, and at least one second step with a material processing method that smooths the surface, wherein at least during the second processing step of the smoothing material processing, the element (1) to be processed is elastically stressed by force introduction such that the freeform surface to be smoothed is processed by smoothing processes for spherical, plane or aspherical surfaces.
    Type: Application
    Filed: September 21, 2009
    Publication date: February 11, 2010
    Applicant: Carl Zeiss SMT AG
    Inventors: Thure BOEHM, Stefan Burkart, Hans-Juergen Mann, Danny Chan, Holger Maltor
  • Patent number: 7578725
    Abstract: This apparatus includes a unit for adhering an elastic seal to a lens holder, a unit for causing the lens holder, to which the elastic seal is adhered, to hold a lens, a pivotal arm, an arm driving unit for pivoting the pivotal arm, a clamp unit attached to the pivotal arm to be vertically movable to hold the lens holder, and a clamp driving unit for vertically moving the clamp unit. The pivotal arm is pivoted to sequentially adhere the elastic seal to the lens holder and hold the lens by the lens holder.
    Type: Grant
    Filed: March 13, 2007
    Date of Patent: August 25, 2009
    Assignee: Hoya Corporation
    Inventors: Takashi Igarashi, Shinichi Yokoyama, Michio Arai, Masahiko Samukawa, Shuichi Sato
  • Patent number: 7563153
    Abstract: The method comprises the following steps: a centering step during which the optical frame of reference of the lens is acquired and a blocking accessory is fastened thereto; and a step of shaping the lens to have a desired outline. The blocking accessory is fitted with an electronic identification element bearing an identification code, and said identification code of the electronic element is read initially during a first read during the centering step to associate the code in memory with the mounting parameters of the lens that is receiving the blocking accessory, and then during a second read during the shaping step in order to recover the mounting parameters associated with the identification code as read and thus with the lens attached to the blocking accessory.
    Type: Grant
    Filed: August 24, 2007
    Date of Patent: July 21, 2009
    Assignee: Essilor International
    Inventor: Ahmed Haddadi
  • Patent number: 7500908
    Abstract: The pneumatic blocking support which is used to block an optical lens (200) on a machine or device has means (3) for fixing it on a corresponding element of the machine or device. The blocking means comprise a central cavity (8) and a joint (9) having at least one annular part (9) against which the lens rests in order to define a depression chamber (11) with said cavity and joint. The blocking elements include stop members (10) which are created in order to provide the optical lens with a rigid seat after the elastic compression of the joint.
    Type: Grant
    Filed: November 4, 2004
    Date of Patent: March 10, 2009
    Assignee: Essilor International
    Inventors: Armand Achy, Alain Chansavoir, Jean-François Belly
  • Patent number: 7494402
    Abstract: A ferrule holder assembly for an optical-fiber-end-face grinding apparatus comprises a ferrule holder board supported to be moved upward and downward in parallel with a grinding board of the optical-fiber-end-face grinding apparatus, a ferrule sleeve provided at the ferrule holder board for receiving and supporting an optical fiber ferrule while putting the tip at the grinding board, an adapter for retaining the optical fiber ferrule or a connector for supporting the optical fiber ferrule in a state where the optical fiber ferrule is inserted into the ferrule sleeve, and an urging unit for urging the adapter in a direction opposite to the grinding board from the ferrule holder board.
    Type: Grant
    Filed: December 2, 2005
    Date of Patent: February 24, 2009
    Assignee: Seiko Giken Co., Ltd.
    Inventors: Kunio Yamada, Takehiko Narita
  • Publication number: 20080299881
    Abstract: The invention concerns a locking device comprising a rigid base (2) and a deformable pocket (3) containing a granular material (13). Discharging means (4) are provided for gas exchange between the inside and the outside the deformable pocket (3).
    Type: Application
    Filed: December 26, 2006
    Publication date: December 4, 2008
    Applicant: Essilor International (Compangnie Generale D'Optique)
    Inventors: Patrick Herbin, Jean-Marie Keller
  • Patent number: 7438775
    Abstract: A lens layout block device comprising a seal feeding device that supplies an elastic seal to a seal sticking position (A5). The elastic seal is loaded in a tape loading part in the form of a seal tape covered by a mount and a protective sheet and wound in a roll shape and fed by driving a motor. The protective sheet is separated by a protective sheet separating mechanism. At the seal sticking position (A5), a sensor detects the leading edge of a positioning hole in the mount and stops the conveyance of the seal tape after the seal tape is fed from the detection position for a specified time. The stop position is determined as the reference sticking position of the elastic seal and a lens holder is pressed against the elastic seal from above. The mount is pulled down by the seal separating mechanism to separate the mount from the elastic seal.
    Type: Grant
    Filed: March 11, 2005
    Date of Patent: October 21, 2008
    Assignee: Hoya Corporation
    Inventors: Michio Arai, Shuichi Sato
  • Patent number: 7413502
    Abstract: The invention concerns a method for producing ophthalmic lenses that uses plastic blanks in the form of flat, round discs. The outer edge of said plastic blanks is clamped and the desired final surface geometry and surface quality of the front faces of the lens are subsequently produced by a machining process using grinders and/or lathes and by smoothing and polishing processes. During machining, a thicker annular region is retained on the outer circumference of the workpiece. The annular region clamps or arranges the workpiece during machining and transport operations and stabilizes the lens for additional machining. Shaped pieces for identifying the machining axes are attached to the annular region. The lens is provided with fine markings to characterize the lens that has been produced, with the lens then being separated from the region.
    Type: Grant
    Filed: September 12, 2005
    Date of Patent: August 19, 2008
    Assignees: Optotech Optikmaschinen GmbH, Carl Zeiss Vision GmbH
    Inventors: Roland Mandler, Reinhold Weis
  • Publication number: 20080160889
    Abstract: An automatic lens blocking apparatus having a tracer and a lensmeter therein, for adhering a block to a lens by using a robot arm, is disclosed. The automatic lens blocking apparatus comprises: a tracer for obtaining data on a shape of a glass frame and data on a center of the glass frame; a lensmeter for obtaining data on an optical center of a blank lens by measuring physical property of the blank lens; an image camera part for obtaining an image of a shape and a position of the blank lens; and a blocker (a) for determining a blocking position to which a block is adhered on the basis of (i) the data on the shape of the glass frame and the data on the center of the glass frame obtained from the tracer, (ii) the data on the optical center of the blank lens and physical property of the blank lens obtained from the lensmeter and (iii) the image of the shape and the position of the blank lens obtained from the image camera part, (b) for moving the block and (c) for adhering the block to the blank lens.
    Type: Application
    Filed: December 5, 2007
    Publication date: July 3, 2008
    Inventor: Joon-Seok Song
  • Publication number: 20080132157
    Abstract: The invention relates to a block piece for holding an optical lens to be machined, with a coupling part for holding in a workpiece chuck and with a holding part for fastening the lens. The holding part has a convex or concave holding surface corresponding to a first side of the lens. The holding surface is, according to the shape of the lens to be held, provided in the form of a negative free-forming surface, and the block piece is made from a plastic that can be machined.
    Type: Application
    Filed: July 26, 2006
    Publication date: June 5, 2008
    Inventors: Gunter Schneider, Helwig Buchenauer, Ulf Borner, Klaus Kramer
  • Patent number: 7381119
    Abstract: A fixture for grinding machines includes a first base (10) and a second base (20). The first base has a first surface (12) which defines a first holding groove (11). The first base defines a plurality of first suction holes (13) on the first surface. The second base has a second surface (22) which defines a second holding groove (21) corresponding to the first holding groove. The second base defines a plurality of second suction holes (23) on the second surface.
    Type: Grant
    Filed: September 8, 2006
    Date of Patent: June 3, 2008
    Assignee: Hon Hai Precision Industry Co., Ltd.
    Inventor: Chun-Yi Chang