Objective For Laser (e.g., Optical Disc, Etc.) Patents (Class 359/719)
  • Patent number: 10180583
    Abstract: An optical coupling module reduces a number of optical elements, and includes a collimate lens 2a that collimates a light from the first semiconductor laser 1a and then outputs the first collimate light, a collimate lens 2b that collimates a light from the semiconductor laser 1b in a location at which an emission plane is approximately orthogonal to an emission plane of the semiconductor laser 1a and outputs the second collimate light. The collimate lens 2c collimates light from semiconductor laser 1c in-place in the location at which the emission plane faces the emission plane of the semiconductor laser 1b and outputs a third collimate light. A prism mirror 3 has a rectangular prism with a first reflection plane that reflects the second collimate light to a parallel direction to the first collimate light and a second reflection plane orthogonal to the first reflection plane and reflects the third collimate light to the parallel direction to the first collimate light.
    Type: Grant
    Filed: June 27, 2018
    Date of Patent: January 15, 2019
    Assignee: SHIMADZU CORPORATION
    Inventors: Naoya Ishigaki, Koji Tojo
  • Patent number: 10018812
    Abstract: An imaging lens is provided with: a first lens with negative power; a second lens with negative power; a third lens with positive power; and a fourth lens with positive power. The cemented fourth lens is formed from an object side lens with negative power and an image side lens with positive power. The thickness of a resin adhesive layer that bonds the object side lens and the image side lens is 20 ?m or greater on the optical axis, and when Sg1H is the amount of sag in the image side lens surface of the object side lens and Sg2H is the amount of sag in the object side lens surface of the image side lens. The bonding operation is easy without damage occurring to the cemented surfaces, with a design that takes into account thickness of the resin adhesive layer; therefore various forms of aberration can be corrected.
    Type: Grant
    Filed: March 15, 2017
    Date of Patent: July 10, 2018
    Assignee: MAXELL, LTD.
    Inventors: Masaki Yamazaki, Takashi Sugiyama
  • Patent number: 9821522
    Abstract: A method of making an axicon includes providing a structure having an axicon-shape cavity, the cavity having a first end and a second end, the first end of the cavity having a cross sectional dimension that is smaller than the second end, placing a polymeric substance into the axicon-shape cavity, and forming an axicon using the polymeric substance.
    Type: Grant
    Filed: April 16, 2012
    Date of Patent: November 21, 2017
    Assignee: POINCARE SYSTEMS, INC.
    Inventors: Anthony Van Le, Nicholas John Richardi
  • Patent number: 9341647
    Abstract: Disclosed is a testing apparatus, including: a base having opposite upper and lower surfaces, and a plurality of electrical circuits formed in the base, each of the electrical circuits extending from the upper surface to the lower surface and bending backwards to the upper surface such that two terminal ends of the electrical circuit are located on the upper surface. While in a testing, an element is disposed on the upper surface of the base such that testing probes are placed on the electrical contact spots of both the element and the upper surface of the base, thus without resorting to double sided testing that testing probes are placed on the upper and lower surfaces of the element as mentioned in the prior art. Hence, the testing apparatus and testing method can simplify the testing process and prevent the element from damage caused by mechanical stresses of the testing probes.
    Type: Grant
    Filed: August 17, 2012
    Date of Patent: May 17, 2016
    Assignee: Siliconware Precision Industries Co., Ltd.
    Inventors: Chun-Hsun Lin, Hsuan-Hao Yang, Tzu-Yuan Huang, Kuang-Ching Fan, Hsin-Hung Lee
  • Patent number: 9328896
    Abstract: A lens for controlling an illuminance distribution to realize high luminous flux efficiency by maintaining a required beam angle and uniformity on an illumination surface having a particular shape, such as a square shape, and a light-emitting diode (LED) package including the lens are provided. The lens includes an incidence surface onto which light emitted from a light-emitting device is incident, and an emission surface through which the light incident onto the incidence surface is emitted. An illuminance controller, which includes at least two optical devices, is disposed on the emission surface to control an illuminance distribution of the emission surface.
    Type: Grant
    Filed: December 30, 2013
    Date of Patent: May 3, 2016
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Yong-ju Kim, Sang-woo Ha, Chin-woo Kim, Jin-ha Kim
  • Patent number: 9285091
    Abstract: The invention relates to a vehicle headlamp (1) for producing a main light distribution and an auxiliary light distribution, wherein the vehicle headlamp (1) comprises two or more LED light modules (10), wherein each of the LED light modules (10) comprises one or more primary LED light sources (11), wherein a primary LED light source (11?) comprises at least one light-emitting diode, comprises two or more secondary LED light sources (12, 12a), wherein a secondary LED light source (12, 12a) comprises at least one light-emitting diode (12?), and comprises a lens (13), wherein the light emitted by the at least one primary LED light source (11) is radiated directly onto the lens (13) and projected by the lens into the exterior space, wherein the light emitted by the primary LED light sources (11) of a all LED modules (10) forms the main light distribution, and wherein the light emitted by the secondary LED light sources (12, 12a) of an LED modules (10) is radiated onto the lens (13) of the LED module (10) by mean
    Type: Grant
    Filed: November 17, 2011
    Date of Patent: March 15, 2016
    Assignee: ZIZALA LIGHTSYSTEME GMBH
    Inventors: Markus Danner, Andreas Moser, Johannes Jungwirth, Gunther Krenn, Martin Stein
  • Patent number: 9255687
    Abstract: An LED optical light engine spotlight which can accommodate a variable number of light-emitting diodes (LEDs) is disclosed. An optical projection lens mounted in front of the LEDs merges the separate LED beams into a single beam, similar to the single beam provided by a halogen light and reflector. A heat sink provides convection cooling up to approximately 100 F. An optional fan provides additional heat dissipation for more extreme conditions. The depicted device can include a vertical tilt of over 200. Optimally, the depicted device is designed to have a full vertical tilt range between zenith (0 degrees) to horizontal (90 degrees) to full depression (135 degrees). An optional accessory lens provides additional capabilities, including flood lenses, colored lenses and rock guards, for example. The depicted device can be hard wired or wireless. The depicted device can be adapted to many base units and/or pan and tilt platforms.
    Type: Grant
    Filed: July 11, 2012
    Date of Patent: February 9, 2016
    Assignee: GOLIGHT, INC
    Inventors: Albert W. Gebhard, Colton D. Hosick
  • Patent number: 9097826
    Abstract: An illumination system employing an elongated waveguide having a non-round transversal cross-section and having at least a portion of its surface shaped in the form of a linear collimating element. The waveguide further employs at least one array of light extracting features distributed along a longitudinal axis of the waveguide and disposed in the focal area of the respective linear collimating element. Each light extracting feature has an active aperture which is substantially less than the light receiving aperture of the linear collimating element and is configured to redirect light propagating in the waveguide generally towards a normal direction with respect to the longitudinal axis of the waveguide. Light rays redirected by the light extracting features are further collimated by the linear collimating element and exit from the waveguide in the form of a directional beam.
    Type: Grant
    Filed: October 8, 2012
    Date of Patent: August 4, 2015
    Assignee: SVV TECHNOLOGY INNOVATIONS, INC.
    Inventor: Sergiy Vasylyev
  • Publication number: 20150009790
    Abstract: [PROBLEM] To provide an object lens such that the degradation of the optical properties of the object lens due to temperature change can be minimized, and a light pickup device using the same. [SOLUTION] An object lens R has lens surfaces R1, R2 which converges BD light, DVD light and CD light with prescribed numerical apertures into spots, and an antireflective film R1a formed on the lens surface R1. The lens surface R1 includes a BD exclusive region A1, a two-wavelength common region A2, and a three-wavelength common region A3. Diffractive structures P1, P2 and P3 are formed respectively for the BD exclusive region A1, the two-wavelength common region A2 and the three-wavelength common region A3. The antireflective film R1a is designed such that the transmittance for BD light is largest in the range of the two-wavelength common region A2.
    Type: Application
    Filed: December 18, 2012
    Publication date: January 8, 2015
    Inventors: Mitsuru Ito, Yuki Koshimizu, Yoshitoshi Oyamada, Hiroyuki Ichikawa
  • Patent number: 8922911
    Abstract: Disclosed are an image pickup lens which provides a sufficient back focus and can be subjected to a reflow process while offering a capability to be used with either a 1/10-inch-sized or a 1/12-inch-sized solid-state image pickup device, as well as an image pickup apparatus and a portable terminal employing such an image pickup lens. An image pickup lens for focusing an image of a subject on a photoelectric converting portion of a solid-state image pickup device, the image pickup lens comprising an aperture stop and a single lens arranged in this order from an object side, wherein the image pickup lens satisfies the following conditional formulae: 0.70 mm<f<1.60 mm??(1) 0.70<(r1+r2)/(r1?r2)<1.60??(2) where f: focal length of the image pickup lens (mm); r1: paraxial radius of curvature of an object-side surface of the single lens (mm); and r2: paraxial radius of curvature of an image-side surface of the single lens (mm).
    Type: Grant
    Filed: April 5, 2011
    Date of Patent: December 30, 2014
    Assignee: Konica Minolta Business Technologies, Inc.
    Inventors: Yuichi Ozaki, Kazuki Matsui
  • Publication number: 20140325536
    Abstract: Provided is an objective lens driving unit in which a wire holder is coupled to a circuit board. In a conventional objective lens driving unit, a connection between a wire holder and a circuit board may deteriorate over time due to a deterioration of the connection. According to various aspects, a wire holder may be directly coupled to a circuit board by insert molding, thus improving the connection between the wire holder and the circuit board over time.
    Type: Application
    Filed: April 28, 2014
    Publication date: October 30, 2014
    Applicant: Toshiba Samsung Storage Technology Korea Corporation
    Inventors: Young-bin LEE, Soo-hyun BAEK
  • Patent number: 8873166
    Abstract: An objective lens for an optical pickup device is characterized in that compatibility of three types of optical discs, which are a BD, a DVD, and a CD, may be realized by a common objective lens, and a flare can be created by providing an over-spherical aberration when a third optical disc is used from a size relationship between a pitch on a central region side and a pitch on an intermediate region side across a boundary and a relationship of a direction of a step in the base structures superimposed in a central region and an intermediate region of the objective lens.
    Type: Grant
    Filed: September 27, 2011
    Date of Patent: October 28, 2014
    Assignee: Konica Minolta Advanced Layers, Inc.
    Inventor: Kiyono Tateyama
  • Patent number: 8848501
    Abstract: The present application discloses detection lens provided with lens portion and flange portion including first surface connected to lens portion and second surface opposite to first surface. Flange portion includes base along optical axis of lens portion, and first to fourth projections projecting from base. First and second projections are point-symmetric around optical axis. Third and fourth projections are point-symmetric around optical axis. Flange portion excludes projection extending beyond second surface. First projection includes first intersecting surface which intersects with first axis. Second projection includes second intersecting surface which intersects with first axis. Third projection includes third intersecting surface which intersects with second axis. Fourth projection includes fourth intersecting surface which intersects with second axis. First distance between first and second intersecting surfaces is longer than second distance between third and fourth intersecting surfaces.
    Type: Grant
    Filed: December 20, 2012
    Date of Patent: September 30, 2014
    Assignee: Panasonic Corporation
    Inventors: Toshiyasu Tanaka, Noriaki Terahara, Takeshi Ohta, Shinsuke Hatanaka, Fumitomo Yamasaki
  • Publication number: 20140254345
    Abstract: Assuming that third-order coma aberration per unit angle generated by tilt of BD (60) in recording or reproducing information on or from BD (60) is CMDbd, third-order coma aberration per unit angle generated by tilt of CD (80) in recording or reproducing information on or from CD (80) is CMDcd, third-order coma aberration per unit angle generated by tilt of a compatible objective lens (8) in recording or reproducing information on or from BD (60) is CMLbd, and third-order coma aberration per unit angle generated by tilt of the compatible objective lens (8) in recording or reproducing information on or from CD (80) is CMLcd, a sine condition deviation amount (SCbd) in recording or reproducing information on or from BD (60) is expressed by CMDbd+CMLbd, a sine condition deviation amount (SCcd) in recording or reproducing information on or from CD (80) is expressed by CMDcd+CMLcd, and the sine condition deviation amount (SCbd) and the sine condition deviation amount (SCcd) satisfy SCbd>0 and SCcd<0.
    Type: Application
    Filed: October 17, 2012
    Publication date: September 11, 2014
    Inventors: Fumitomo Yamasaki, Kazuhiro Minami, Yoshiaki Komma
  • Publication number: 20140247493
    Abstract: An objective lens element which has excellent compatibility with optical discs having different base material thicknesses is provided. An objective lens element 141 has optically functional surfaces on an incident side and an exit side. Either one of the optically functional surfaces is divided into an inner part 131B including a rotational symmetry axis and an outer part 131F which is a ring-shaped region surrounding the inner part 131B. On the inner part 131B, a plurality of discontinuous steps are provided. The plurality of steps change in height in the same direction from the optical axis toward the outer part, and each of the steps causes a constant optical path difference longer than the wavelength ?1 to the first incident light beam 61 and causes a constant optical path difference shorter than the wavelength ?2 to the second incident light beam 62.
    Type: Application
    Filed: May 9, 2014
    Publication date: September 4, 2014
    Applicant: Panasonic Corporation
    Inventors: Katsuhiko HAYASHI, Yasuhiro TANAKA, Michihiro YAMAGATA, Yoshiaki KOMMA, Kazuhiko ISHIMARU
  • Patent number: 8786965
    Abstract: A method for processing a material for a die for molding an objective lens which is formed with a multilevel structure on the curved surface thereof, wherein the transfer surface of the objective lens is cut by a tool having a cutting face, the outline of which includes a linear first edge portion, a linear second edge portion extending in a direction which intersects the first edge portion at an acute angle thereto, and a third edge portion which joins the ends of the first and second edge portions, while the die material is rotated around the axis thereof, in a state in which at least the first edge portion and the second edge portion of the tool is inclined with respect to the axis and while the tool is moved only in the axial direction and in the direction which intersects the axis.
    Type: Grant
    Filed: August 17, 2010
    Date of Patent: July 22, 2014
    Assignee: Konica Minolta Opto, Inc.
    Inventors: Kenichi Ishii, Kyu Takada
  • Patent number: 8681828
    Abstract: A laser light projector includes a laser beam generated by a laser light source, a scanner associated with the laser light source and having one or more moving mirrors capable of scanning the laser beam along X-Y coordinates, a scan-fail monitor and a safety-lens. The safety-lens includes a plurality of powers arranged for increasing the safety of the projected light within audience areas by increasing beam divergence in the audience, while keeping beam divergence low above the heads of the audience, thus allowing mirror targeting to occur.
    Type: Grant
    Filed: June 1, 2010
    Date of Patent: March 25, 2014
    Inventor: William R. Benner, Jr.
  • Publication number: 20140078877
    Abstract: The present application discloses detection lens provided with lens portion and flange portion including first surface connected to lens portion and second surface opposite to first surface. Flange portion includes base along optical axis of lens portion, and first to fourth projections projecting from base. First and second projections are point-symmetric around optical axis. Third and fourth projections are point-symmetric around optical axis. Flange portion excludes projection extending beyond second surface. First projection includes first intersecting surface which intersects with first axis. Second projection includes second intersecting surface which intersects with first axis. Third projection includes third intersecting surface which intersects with second axis. Fourth projection includes fourth intersecting surface which intersects with second axis. First distance between first and second intersecting surfaces is longer than second distance between third and fourth intersecting surfaces.
    Type: Application
    Filed: December 20, 2012
    Publication date: March 20, 2014
    Applicant: PANASONIC CORPORATION
    Inventors: Toshiyasu Tanaka, Noriaki Terahara, Takeshi Ohta, Shinsuke Hatanaka, Fumitomo Yamasaki
  • Publication number: 20130278916
    Abstract: A condenser lens suitable for a laser rangefinder includes a lens body wherein the lens body is formed with or has attached thereto a deviation correction area that is located on the light emitting side thereof for correcting focus deviation upon reception of light scattered by a close range object. A center of the body is located inside the deviation correction area of the lens. The deviation correction area may include one or more deviation correction zones.
    Type: Application
    Filed: April 19, 2013
    Publication date: October 24, 2013
    Applicant: Chervon (HK) Limited
    Inventors: Ming Chen, Wu Chen
  • Patent number: 8506122
    Abstract: Provided is a light emitting apparatus. The light emitting apparatus comprises a substrate; a light emitting device package on the substrate; and a lens supported by the substrate, the lens being disposed on the light emitting device package, wherein the lens comprises a lens body having a first recess at a central portion of a top surface thereof, a second recess at a central portion of a bottom surface thereof, and a lens support disposed on the bottom surface of the lens body to support the lens body such that the bottom surface of the lens body is spaced apart from the substrate.
    Type: Grant
    Filed: June 25, 2012
    Date of Patent: August 13, 2013
    Assignee: LG Innotek Co., Ltd.
    Inventors: Gyu Hyeong Bak, Sang Won Lee
  • Publication number: 20130182337
    Abstract: An objective lens for an optical pickup device is characterized in that compatibility of three types of optical discs, which are a BD, a DVD, and a CD, may be realized by a common objective lens, and a flare can be created by providing an over-spherical aberration when a third optical disc is used from a size relationship between a pitch on a central region side and a pitch on an intermediate region side across a boundary and a relationship of a direction of a step in the base structures superimposed in a central region and an intermediate region of the objective lens.
    Type: Application
    Filed: September 27, 2011
    Publication date: July 18, 2013
    Applicant: KONICA MINOLTA ADVANCED LAYERS, INC.
    Inventor: Kiyono Tateyama
  • Patent number: 8406111
    Abstract: Provided are an objective lens with enhanced transmittance and an optical pickup apparatus which can record and/or reproduce information properly for three kinds of discs with different recording densities, even if a single lens is used as the objective lens. When all the expressions (1) to (3) are satisfied, excellent aberration characteristics can be obtained for the three kinds of discs: ?0.02?m1?0.02 (1); 0?(WD1?WD2)?1.57 m2+0.123 or 1.57 m2+0.24?(WD1?WD2)?0.7 (2); and 0?(WD1?WD3)?1.79 m3+0.333 or 1.66 m3+0.508?(WD1?WD3)?0.7 (3).
    Type: Grant
    Filed: July 21, 2009
    Date of Patent: March 26, 2013
    Assignee: Konica Minolta Optp, Inc.
    Inventors: Kiyono Tateyama, Kentarou Nakamura
  • Patent number: 8351125
    Abstract: A directional light distributing optical element includes a light incident surface and a light emission curved surface. The light incident surface receives a light emitted by a light source. The light emission curved surface and a first plane are intersected to form a first curve. The first curve has a plurality of first curve segments, and each first curve segment includes at least three first tangent points. After passing each first tangent point along a connecting line of the light source and each first tangent point, the light exits along a first axis, and an included angle formed between the first axis and an optic axis is greater than ?15° and smaller than 15°. Thus, the light after passing the directional light distributing optical element forms a one-dimensional directional light.
    Type: Grant
    Filed: February 2, 2011
    Date of Patent: January 8, 2013
    Assignee: Industrial Technology Research Institute
    Inventors: Hui-Hsiung Lin, Wen-Hsun Yang, Chin-Ju Hsu, Yu-Nan Pao
  • Patent number: 8345356
    Abstract: An objective lens for converging light emitted from a light source onto an optical recording medium to record and reproduce information consists of a single lens that has at least one aspheric surface. The following conditional expressions (1) and (2) are satisfied: ?0.90<R1/R2<?0.45??(1) 0.70<d/f<1.40??(2) where R1 denotes a radius of curvature (mm) of a light source side surface near an optical axis, R2 denotes a radius of curvature (mm) of an optical recording medium side surface near the optical axis, d denotes a thickness (mm) on an optical axis, and f denotes a focal length (mm).
    Type: Grant
    Filed: May 15, 2009
    Date of Patent: January 1, 2013
    Assignee: Fujinon Corporation
    Inventors: Toshiaki Katsuma, Masao Mori, Tetsuya Ori, Yu Kitahara
  • Publication number: 20120320728
    Abstract: A lens surface (22) of an objective lens (20) includes an optical surface (221) formed of a plurality of annular optical surfaces (22a, 22b, 22c, and 22d) which include an approximately stair-shaped cross section and which are annularly partitioned centered around an optical axis (OA) of the objective lens (20), and a plurality of connecting surfaces (251) that connect the plurality of mutually adjacent annular optical surfaces to each other. The plurality of connecting surfaces (251) include cylindrical connecting surfaces (25b and 25c) formed of a cylindrical surface centered around the optical axis (OA) and a conical connecting surface (26a) formed of a conical surface centered around the optical axis (OA), and the conical connecting surface (26a) connects the annular optical surface (22c) and the annular optical surface (22d).
    Type: Application
    Filed: March 17, 2011
    Publication date: December 20, 2012
    Applicant: PANASONIC CORPORATION
    Inventors: Fumitomo Yamasaki, Yoshiaki Komma, Katsuhiko Hayashi, Yoshifumi Takasu
  • Publication number: 20120307620
    Abstract: A light source device configured as a master oscillator power amplifier includes a mode locked laser unit having an external resonator and a semiconductor optical amplifier that amplifies and modulates laser light emitted from the mode locked laser unit. The width in a lateral direction of a waveguide on an incident side of the semiconductor optical amplifier is set so that a horizontal lateral mode of the waveguide on the incident side of the semiconductor optical amplifier becomes multiple modes, and a magnification conversion unit that converts a magnification of incident light from the mode locked laser unit to the semiconductor optical amplifier is disposed so that a basic mode is selectively excited in optical coupling on the incident side of the semiconductor optical amplifier.
    Type: Application
    Filed: May 4, 2012
    Publication date: December 6, 2012
    Applicant: SONY CORPORATION
    Inventors: Michio Oka, Hiroshi Yoshida, Kenji Tanaka
  • Patent number: 8305698
    Abstract: An imaging lens good in mass-productivity, compact, low in manufacturing cost, good in aberration performance is provided by effectively correcting aberrations without greatly varying the variation of the thickness of a curing resin. An imaging device having such an imaging lens and a portable terminal are also provided. A third lens (L3) has a flat surface on the object side, a convex surface near the optical axis on the image side, and a concave aspheric surface around the peripheral portion within the region where a light beam passes. Therefore, it is possible to reduce the other optical aberrations such as distortion and simultaneously to design the imaging lens so that the astigmatism takes on a maximum value at the outermost portion. Hence, the resolutions at low to middle image heights are high. In addition, such a shape does not cause a large variation of the thickness of the third lens (L3) from the region along the axis to the periphery.
    Type: Grant
    Filed: November 12, 2008
    Date of Patent: November 6, 2012
    Assignee: Konica Minolta Opto, Inc.
    Inventor: Yuichi Ozaki
  • Patent number: 8284500
    Abstract: An object of the invention is to provide a laser line-generator that generates a straight line with the both end portions as bright as the central portion, and a laser line-generator module that integrates the laser line-generator with a laser light source. A columnar transparent medium has an entrance boundary surface 10 for taking in laser light and an exit surface 20 for emitting the taken laser light linearly. At least one of the entrance boundary surface 10 and the exit surface 20 is composed of a curved surface, and a curve forming the curved surface includes two or more inflection points F.
    Type: Grant
    Filed: June 8, 2009
    Date of Patent: October 9, 2012
    Assignee: Ayase Co., Ltd.
    Inventors: Chiaki Kojima, Ja Koo, Hiroyuki Imai
  • Publication number: 20120207008
    Abstract: An objective lens element having improved diffraction efficiency at least one of used wavelengths is provided. The objective lens element includes one surface including: a first region including an optical axis; and a second region surrounding the first region. A periodic first diffraction structure is formed on the first region, and a periodic second diffraction structure different from the first diffraction structure is formed on the second region. The objective lens element satisfies the following conditions. |A1?B1|<|A2?B2|??(1) |B1|?|B2|??(2) Here, A1 and B1 are diffraction orders at the first region to converge light of a first wavelength and light of a second wavelength on a recording surface, respectively, and A2 and B2 are diffraction orders at the second region to converge the light of the first wavelength and the light of the second wavelength on a recording surface, respectively.
    Type: Application
    Filed: February 15, 2012
    Publication date: August 16, 2012
    Applicant: PANASONIC CORPORATION
    Inventors: Kazuhiro Minami, Yoshiaki Komma, Fumitomo Yamasaki, Katsuhiko Hayashi
  • Publication number: 20120182628
    Abstract: A method for processing a material for a die for molding an objective lens which is formed with a multilevel structure on the curved surface thereof, wherein the transfer surface of the objective lens is cut by a tool having a cutting face, the outline of which includes a linear first edge portion, a linear second edge portion extending in a direction which intersects the first edge portion at an acute angle thereto, and a third edge portion which joins the ends of the first and second edge portions, while the die material is rotated around the axis thereof, in a state in which at least the first edge portion and the second edge portion of the tool is inclined with respect to the axis and while the tool is moved only in the axial direction and in the direction which intersects the axis.
    Type: Application
    Filed: August 17, 2010
    Publication date: July 19, 2012
    Inventors: Kenichi Ishii, Kyu Takada
  • Patent number: 8223442
    Abstract: There is provided an objective lens for an optical pick-up. The objective lens is formed to be a single-element plastic lens having a first surface and a second surface. The first surface is configured to have, within an effective diameter, an inflection point at which a second derivative of a sag of the first surface takes a value of 0. Further, the objective lens having a numerical aperture larger than or equal to 0.75.
    Type: Grant
    Filed: January 29, 2008
    Date of Patent: July 17, 2012
    Assignee: Hoya Corporation
    Inventors: Naoki Yamagata, Shuichi Takeuchi
  • Patent number: 8213093
    Abstract: Provided is a lens. The lens may include a lens body having a convex top surface having a first recessed part at a central portion thereof and a flat surface at a circumference thereof and a flat bottom surface having a second recessed part at a central portion thereof, and a plurality of lens supports on the bottom surface of the lens body.
    Type: Grant
    Filed: September 23, 2011
    Date of Patent: July 3, 2012
    Assignee: LG Innotek Co., Ltd.
    Inventors: Gyu Hyeong Bak, Sang Won Lee
  • Patent number: 8194248
    Abstract: Methods of optimizing optical alignment in an optical package are provided. In one embodiment, the optical package includes a laser diode, a wavelength conversion device, coupling optics positioned along an optical path extending from the laser diode to the wavelength conversion device, and one or more adaptive actuators. The method involves adjusting the optical alignment of the wavelength conversion device in a non-adaptive degree of freedom by referring to a thermally-dependent output intensity profile of the laser diode and a thermally-dependent coupling efficiency profile of the optical package.
    Type: Grant
    Filed: November 10, 2008
    Date of Patent: June 5, 2012
    Assignees: Corning Incorporated, Konica-Minolta
    Inventors: Vikram Bhatia, Steven Joseph Gregorski, Fumio Nagai, Yukihiro Ozeki
  • Patent number: 8187772
    Abstract: Lithography using solid immersion lenses is disclosed. In one aspect, an apparatus is provided that includes a resist film that has a first side and a second and opposite side. One or more solid immersion lenses are positioned over the first side of the resist film. In another aspect, a method of manufacturing is provided that includes forming a resist film and exposing the resist film with radiation transmitted through one or more solid immersion lenses.
    Type: Grant
    Filed: October 8, 2004
    Date of Patent: May 29, 2012
    Assignee: GLOBALFOUNDRIES Inc.
    Inventors: Rama R. Goruganthu, Michael R. Bruce
  • Patent number: 8116188
    Abstract: A plastic objective lens is configured to collect a light beam with at least a wavelength ? on a recording layer of an optical disk and is used in an optical pickup for recording and/or reproducing an information signal by illuminating a light beam on the optical disk having one or a plurality of recording layers in an incident direction of the light beam.
    Type: Grant
    Filed: January 25, 2010
    Date of Patent: February 14, 2012
    Assignee: Sony Corporation
    Inventor: Toshifumi Yasui
  • Patent number: 8107172
    Abstract: A single-lens optical system including a stop and a lens sequentially arranged from an object side, and reducing distortion by controlling a distance between the stop and the lens.
    Type: Grant
    Filed: March 31, 2010
    Date of Patent: January 31, 2012
    Assignee: Samsung Techwin Co., Ltd.
    Inventor: Ju-hwa Son
  • Patent number: 8089705
    Abstract: There is provided an objective lens for an optical pick-up. The objective lens includes a first surface on a light source side, and a second surface on an optical disc side. The first surface has a convex shape. The objective lens is formed to be a single-element lens having a numerical aperture of 0.75 or more. In this configuration, the objective lens satisfies a condition: 0.95<(n?1)·tan ?max<1.50??(1) where ?max represents a maximum angle of a normal to the first surface with respect to an optical axis in an effective diameter of the first surface, and n represents a refractive index of the objective lens.
    Type: Grant
    Filed: April 16, 2008
    Date of Patent: January 3, 2012
    Assignee: Hoya Corporation
    Inventors: Naoki Yamagata, Shuichi Takeuchi
  • Publication number: 20110317539
    Abstract: Provided is an objective optical element which can appropriately correct degradation from spherical aberration upon fluctuation of a light source wavelength while maintaining light use efficiency, just by changing the magnification of the objective optical element, and which can record/reproduce information to/from different optical discs. Also provided is an optical pickup device using the objective optical element. When a light flux having two different wavelengths ?11, ?12 (wherein ?11<?12 and ?12??11=5 nm) within a range of wavelength ?1 is introduced to the objective optical element to measure the wavefront aberration, the following third order and fifth order spherical aberrations in unit of ?rms are obtained: SA3(?11), SA5(?11), SA3(?12), SA5(?12). If ?SA3=|SA3(?12)?SA3(?11)|, ?SA5=|SA5(?12)?SA5(?11)|, the following expression is satisfied: 0.18>?SA3>?SA5>0 (1).
    Type: Application
    Filed: December 15, 2009
    Publication date: December 29, 2011
    Inventor: Kentarou Nakamura
  • Patent number: 8081558
    Abstract: An optical system of an optical pick-up including a resin coupling lens and a resin objective lens with NA larger than 0.8, wherein, magnification ? satisfies a condition: ?0.13<?<?0.08, a focal length f of the objective lens satisfies a condition: 1.15<f<1.50, the objective lens has an annular zone structure on at least one surface of the objective lens, and the annular zone structure has a plurality of annular zones and has steps each of which extends in a direction of an optical axis of the objective lens and is formed at a boundary between adjacent ones of the plurality of annular zones to cause a predetermined optical path length difference between a light beam passing inside the boundary and a light beam passing outside the boundary, and the optical system of an optical pick-up satisfies a condition: 0.065 < ( ( ? ? 0.95 - 1.00 ) ( ? ? 0.00 - 1.00 ) × d 0 × n f 2 × ( NA 0.85 ) 4 ) P ave + 1 L < 0.
    Type: Grant
    Filed: October 28, 2010
    Date of Patent: December 20, 2011
    Assignee: Hoya Corporation
    Inventors: Naoki Yamagata, Satoshi Inoue, Shuichi Takeuchi
  • Patent number: 8072692
    Abstract: An aspherical planoconvex lens (20), containing a material with a refractive index of at least 3.0, in which the height (h) of the convex region (21) is a maximum of one fifth of the thickness (1) of the lens (20). Also disclosed is a laser assembly incorporating such a lens and a method for the manufacture of such a laser assembly.
    Type: Grant
    Filed: December 12, 2005
    Date of Patent: December 6, 2011
    Assignee: OSRAM Opto Semiconductors GmbH
    Inventors: Ulrich Steegmüller, Frank Singer, Guido Weiss
  • Patent number: 8045279
    Abstract: A lens is manufactured by hardening soft material filled inside a molding tool by cooling. The lens includes a convex lens portion having an optical axis, and a marking portion located outside of an effective diameter of the lens portion. The shape or the position of the marking portion is set to prevent deformation of the marking portion by contact with the molding tool due to shrinkage of the material during cooling.
    Type: Grant
    Filed: February 22, 2008
    Date of Patent: October 25, 2011
    Assignee: Hitachi Maxell, Ltd.
    Inventors: Tadahiro Kuwa, Hideki Komiya, Masashi Yoshimura
  • Publication number: 20110255178
    Abstract: A lens for an optical pick-up formed by injection molding, the lens including a lens body having a first surface on an optical disc side and a second surface on a light source side, and a flange part formed to protrude from a periphery of the lens body outward in a radial direction of the lens body, and wherein a part of the flange part has been cut off along a cylindrical outer circumferential surface of the flange part to remove a gate part of the lens, and when D denotes a cutting depth of the flange part, R denotes a radius of the lens and WG denotes a width of the gate part, the lens satisfies a condition: D < R - R 2 - ( W G 2 ) 2 .
    Type: Application
    Filed: April 7, 2011
    Publication date: October 20, 2011
    Applicant: HOYA CORPORATION
    Inventors: Shungo HANASHIRO, Akira IWABUCHI
  • Patent number: 8035901
    Abstract: Disclosed are systems and methods for scoring and separating a glass sheet along a curved trajectory using a laser and optics. The system includes a laser that generates a laser beam, a focusing lens, and a conical optical component, such as a conical lens or a reflective conical mirror. The laser directs the laser beam through the focusing lens and conical lens to create a curved score line that is projected onto a glass sheet to create a curved score line, along which the glass sheet can be separated. Optionally, the laser directs the laser beam through the focusing lens towards a conical mirror, off of which the laser beam is reflected toward the glass sheet to create a curved score line.
    Type: Grant
    Filed: November 26, 2008
    Date of Patent: October 11, 2011
    Assignee: Corning Incorporated
    Inventors: Anatoli Anatolyevich Abramov, Yawei Sun, Qi Wu
  • Patent number: 8027094
    Abstract: A lens may operate in the mid-IR spectral region and couple highly divergent beams into highly collimated beams. In combination with a light source having a characteristic output beam, the lens may provide highly stable, miniaturized mid-IR sources that deliver optical beams. An advanced mounting system may provide long term sturdy mechanical coupling and alignment to reduce operator maintenance. In addition, devices may also support electrical and thermal subsystems that are delivered via these mounting systems. A mid-IR singlet lens having a numerical aperture greater than about 0.7 and a focal length less than 10 mm may be combined with a quantum well stack semiconductor based light source such that the emission facet of the semiconductor lies in the focus of the lens less than 2 mm away from the lens surface. Together, these systems may provide a package that is highly portable and robust, and easily integrated with external optical systems.
    Type: Grant
    Filed: September 9, 2010
    Date of Patent: September 27, 2011
    Assignee: Daylight Solutions, Inc.
    Inventors: Timothy Day, David F. Arnone
  • Patent number: 7995290
    Abstract: An objective lens for converging light emitted from a light source on an optical recording medium to record and reproduce information consists of a single lens having at least one aspheric surface. The following conditional expressions (1) to (3) are satisfied: N?1.75??(1) 0.5<f/f1<0.6??(2) 0.8<d/(NA·De)<1.0??(3) where N denotes a refractive index, f denotes a focal length (mm), f1 denotes a focal length (mm) of a light source side surface, d denotes a thickness (mm) on an optical axis, NA denotes a numerical aperture on an optical recording medium side, and De denotes an effective aperture (mm) of the light source side surface.
    Type: Grant
    Filed: May 15, 2009
    Date of Patent: August 9, 2011
    Assignee: Fujinon Corporation
    Inventors: Toshiaki Katsuma, Masao Mori, Tetsuya Ori, Yu Kitahara
  • Patent number: 7986605
    Abstract: An optical pickup includes a light source emitting a light beam, an objective lens condensing the light beam emitted from the light source onto an optical disc, at least one divergent angle conversion lens (collimator lens) disposed between the light source and the objective lens and changing a divergent angle of the incident light beam, a driving unit (collimator lens driving mechanism) configured to drive the divergent angle conversion lens in a direction of an optical axis, an optical detection device (optical detector) detecting a return light beam reflected at the optical disc, and an environmental change detecting unit (temperature sensor) configured to detect change in environmental temperature, wherein the objective lens is made of a refractive element having, on one surface thereof, a diffraction structure in a stepped shape or a blazed sectional shape, which generates diffraction light providing a spot adapted to perform satisfactory recording and/or reproducing, the objective lens satisfying certai
    Type: Grant
    Filed: June 30, 2009
    Date of Patent: July 26, 2011
    Assignee: Sony Corporation
    Inventor: Kazumasa Kaneda
  • Publication number: 20110122755
    Abstract: Provided are an objective lens with enhanced transmittance and an optical pickup apparatus which can record and/or reproduce information properly for three kinds of discs with different recording densities, even if a single lens is used as the objective lens. When all the expressions (1) to (3) are satisfied, excellent aberration characteristics can be obtained for the three kinds of discs: ?0.02?m1?0.02 (1); 0?(WD1?WD2)?1.57 m2+0.123 or 1.57 m2+0.24?(WD1?WD2)?0.7 (2); and 0?(WD1?WD3)?1.79 m3+0.333 or 1.66 m3+0.508?(WD1?WD3)?0.7 (3).
    Type: Application
    Filed: July 21, 2009
    Publication date: May 26, 2011
    Inventors: Kiyono Tateyama, Kentarou Nakamura
  • Publication number: 20110102914
    Abstract: An aspherical planoconvex lens (20), containing a material with a refractive index of at least 3.0, in which the height (h) of the convex region (21) is a maximum of one fifth of the thickness (l) of the lens (20). Also disclosed is a laser assembly incorporating such a lens and a method for the manufacture of such a laser assembly.
    Type: Application
    Filed: December 12, 2005
    Publication date: May 5, 2011
    Applicant: Osram Opto Semiconductors GmbH
    Inventors: Ulrich Steegmüller, Frank Singer, Guido Weiss
  • Patent number: 7920339
    Abstract: Methods and apparatus to correct a curved Petzval focusing surface to a plane using a convex lens, a concave lens, and a space arranged between the curved side of the convex lens and the curved side of the concave lens. The method and apparatus may also include a Fresnel lens arranged between the concave lens and a pixel array.
    Type: Grant
    Filed: July 2, 2008
    Date of Patent: April 5, 2011
    Assignee: Aptina Imaging Corporation
    Inventors: Jacques Duparre, Steven D. Oliver
  • Publication number: 20110075546
    Abstract: Provided are an optical pickup apparatus and an objective lens which can appropriately record and/or reproduce information on three types of discs with different recording densities and improve the light-utilization efficiency using a simple structure. A first optical path difference providing structure is formed on an optical surface of the objective lens. The first optical path difference providing structure is a step structure in which plural ring-shaped step units each including the same number of steps are arranged concentrically about the optical axis as the center. The width w1 in the direction perpendicular to the optical axis of the highest step or the lowest step in at least one step unit in the step structure is approximately half of the average value w2 of two steps at both sides of the highest step or the lowest step in the direction perpendicular to the optical axis.
    Type: Application
    Filed: May 21, 2009
    Publication date: March 31, 2011
    Inventor: Mitsuru Mimori