By Transmissive Coating On Lens Patents (Class 359/581)
  • Patent number: 10620344
    Abstract: Embodiments of articles including a low-contrast anti-reflection coating are disclosed. The coated surface of such articles exhibits a reduced difference in reflectance between a pristine state and when a surface defect is present. In one or more embodiments, the coated surface of such articles exhibits a first average reflectance in the range from about 0.6% to about 6.0% in a pristine condition and a second average reflectance of about 8% or less after removal of a surface thickness of the anti-reflection coating. In other embodiments, the coated substrate exhibits a second average reflectance of about 10% or less, when the coated surface comprises a contaminant. In some embodiments, the coated substrate exhibits a first color coordinate (a*1, b*1) in a pristine condition and a second color coordinate (a*2, b*2) after the presence of a surface defect such that ?a*b* is about 6 or less.
    Type: Grant
    Filed: May 22, 2015
    Date of Patent: April 14, 2020
    Assignee: Corning Incorporated
    Inventors: Shandon Dee Hart, Karl William Koch, Charles Andrew Paulson
  • Patent number: 10369832
    Abstract: Products, such as branding labels and currency, fabricated to include an optical security element. The optical security assembly may include a carrier film or substrate. An image element, e.g., a printed ink layer, is provided on a first surface of the carrier film/substrate, and the optical security assembly further includes an array or plurality of micro lenses on a second surface of the carrier film/substrate opposite the image element. In order to make the registration and print requirements easier, a mask is provided between the printed ink layer to define color pixels, and the printed ink layer is provided in the form of color blocks in a checkboard pattern with each block aligned with a portion of the mask and a subset of the holes or openings that define the viewable color pixels.
    Type: Grant
    Filed: May 15, 2018
    Date of Patent: August 6, 2019
    Assignee: LUMENCO, LLC
    Inventors: Mark A. Raymond, Hector Andres Porras Soto
  • Patent number: 10317701
    Abstract: An anti-reflective coating system configured to resist crazing resulting from applied compressive forces, and an optical article employing the anti-reflective coating system; and methods of forming the same.
    Type: Grant
    Filed: March 18, 2016
    Date of Patent: June 11, 2019
    Assignee: Vision Ease, LP
    Inventors: Jeff Brown, Michael Marshall, John T. Moxon
  • Patent number: 10279617
    Abstract: Products, such as branding labels, credit cards, and currency, that are fabricated so as to include an optical security element, which is designed to provide enhanced optical focusing onto each color used in the printed image (or in the ink layer). The optical security assembly may include a carrier film or substrate. An image element, e.g., a printed ink layer, is provided on a first surface of the carrier film/substrate, and the optical security assembly further includes an array or plurality of micro lenses on a second surface of the carrier film/substrate opposite the image element (when the substrate/carrier film is transparent). In order to make the registration and print requirements easier, pixels are isolated into sections of the printed ink layer, which can then be arranged to align with sets of lenses (i.e., each set/group of lenses may be dedicated to focusing upon a particular color of ink).
    Type: Grant
    Filed: October 12, 2017
    Date of Patent: May 7, 2019
    Assignee: LUMENCO, LLC
    Inventors: Mark A. Raymond, Hector Andres Porras Soto
  • Patent number: 10066081
    Abstract: There is provided a polymerizable composition for optical materials including (A) at least one kind of polythiols selected from 5,7-dimercaptomethyl-1,11-dimercapto-3,6,9-trithiaundecane, 4,7-dimercaptomethyl-1,11-dimercapto-3,6,9-trithiaundecane, and 4,8-dimercaptomethyl-1,11-dimercapto-3,6,9-trithiaundecane, (B) polyisocyanate, and (C) at least one kind of ultraviolet absorbers having a maximum absorption peak in a range of 350 nm to 370 nm.
    Type: Grant
    Filed: December 12, 2014
    Date of Patent: September 4, 2018
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Naoyuki Kakinuma, Toshiya Hashimoto, Kouya Kojima
  • Patent number: 9971131
    Abstract: A zoom lens includes, in order from an object side to an image side, a first lens unit having positive refractive power, a second lens unit having negative refractive power, a third lens unit having positive refractive power, a fourth lens unit having negative refractive power, and a rear group that includes one or more lenses and has positive refractive power. In the zoom lens, a distance between lens units arranged next to each other changes during zooming. At least one of the lens units provided on the image side of the third lens unit includes a resin lens having positive refractive power and a resin lens having negative refractive power. A material of the resin lens having positive refractive power and a material of the resin lens having negative refractive power are set appropriately.
    Type: Grant
    Filed: November 19, 2015
    Date of Patent: May 15, 2018
    Assignee: Canon Kabushiki Kaisha
    Inventor: Toyokatsu Fujisaki
  • Patent number: 9841597
    Abstract: Provided is an anti-reflection film, which is formed on substrate, the anti-reflection film having a laminated layer structure including, in order from the substrate: a first layer to a sixth layer each formed of a dielectric thin film; and a seventh layer formed by a wet process, in which the first to the sixth layers are formed of three kinds of mediums having different refractive indices from one another, and in which, when refractive indices of the three kinds of mediums at wavelength of 550 nm are defined as nL, nM, and nH, the first layer is formed of a medium having nM, the sixth layer is formed of a medium having nH, a layer formed of a medium having nL and a layer formed of a medium having off are spaced away from each other, and nL, nM, and nH are appropriately set.
    Type: Grant
    Filed: April 2, 2015
    Date of Patent: December 12, 2017
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Kazuhiko Momoki
  • Patent number: 9625879
    Abstract: A method of fabricating a component for use in a watch includes a step of depositing a first thin film on a wafer wherein the first thin film is adapted to allow light reflected away from the wafer to be indicative of a first color characteristic. The step of depositing the first thin film is performed by using a plasma-enhanced chemical vapor deposition process or a low pressure chemical vapor deposition process. The method may further include a step of fabricating a second color characteristic, including defining a pattern on the first thin film using photolithography, and, processing a region within a boundary of the pattern so that the region is adapted to allow light reflected away from the wafer to be indicative of the second color characteristic. The step of processing the region within the boundary of the pattern includes depositing a metal or a ceramic material within the boundary of the pattern which is indicative of the second color characteristic.
    Type: Grant
    Filed: May 21, 2014
    Date of Patent: April 18, 2017
    Assignee: Master Dynamic Limited
    Inventors: Ying Nan Wang, Ching Tom Kong
  • Patent number: 9599314
    Abstract: Disclosed are an optical member and a display device including the same. The optical member includes a wavelength conversion layer to convert a wavelength of an incident light, and an impact absorbing layer on the wavelength conversion layer.
    Type: Grant
    Filed: August 19, 2015
    Date of Patent: March 21, 2017
    Assignee: LG INNOTEK CO., LTD.
    Inventor: Jeong Taek Oh
  • Patent number: 9523843
    Abstract: A zoom lens includes, in order from an object side along an optical axis, a first lens group G1 having positive refractive power, a second lens group G2 having negative refractive power, and a third lens group G3 having positive refractive power. Upon zooming from a wide-angle end state W to a telephoto end state T, a distance between the first lens group G1 and the second lens group G2 increases, and a distance between the second lens group G2 and the third lens group G3 decreases. Given conditions are satisfied. Accordingly, a zoom lens having high optical performance with suppressing variations in aberrations, an optical apparatus equipped therewith, and a method for manufacturing the zoom lens are provided.
    Type: Grant
    Filed: July 29, 2011
    Date of Patent: December 20, 2016
    Assignee: Nikon Corporation
    Inventors: Akihiko Obama, Norikazu Yokoi, Issei Tanaka
  • Patent number: 9335443
    Abstract: The present invention relates to a method of applying an anti-reflective coating to an optical surface of a mold. In one embodiment, the method includes the steps of providing a lens mold having an optical surface; forming a layer of a super hydrophobic material over the optical surface, wherein the super hydrophobic material contains an amount of dipodal silane that is a relative percentage of the super hydrophobic material; forming an anti-reflective coating layered structure over the layer of the super hydrophobic material; and forming a layer of a coupling agent deposited with a monolayer thickness to the anti-reflective coating layered structure using vapor deposition under aprotic conditions or by dip coating or spin coating using a solution of a coupling agent in an aprotic solvent.
    Type: Grant
    Filed: July 16, 2013
    Date of Patent: May 10, 2016
    Assignee: QSPEX TECHNOLOGIES, INC.
    Inventors: Kai C. Su, Leslie F. Stebbins, Bill Mantch, Eugene C. Letter
  • Patent number: 9291747
    Abstract: An optical article having anti-fogging properties is disclosed. The optical article includes an anti-reflecting coating having anti-fogging properties even when the optical articles are provided with an anti-soiling top coat layer. The optical article may particularly find use in ophthalmic lenses, including eyeglass lenses.
    Type: Grant
    Filed: February 7, 2011
    Date of Patent: March 22, 2016
    Assignee: Essilor International (Compagnie Generale D'Optique)
    Inventors: Gerald Fournand, Agnes Jallouli
  • Patent number: 9188768
    Abstract: Disclosed is an optical element for use in an optical apparatus having a light source which emits a light flux with a wavelength ? (350 nm???450 nm), the optical element containing: a molded portion formed by molding a resin; and one or a plurality of anti-reflection layers formed on the molded portion, wherein at least one of the anti-reflection layers is made of SixOy; and an elemental ratio r (r=y/x) designating an ratio of O to Si in the molecule of SixOy satisfies a requirement represented by Formula (1): 1.40?r?1.80.
    Type: Grant
    Filed: November 20, 2012
    Date of Patent: November 17, 2015
    Assignee: KONICA MINOLTA, INC.
    Inventors: Hironori Takahashi, Hiroshi Hirayama
  • Patent number: 9122002
    Abstract: Disclosed is a tabular member that has an excellent low reflectivity and that can reduce coloring due to reflected light. In at least one example embodiment, specifically disclosed is a tabular member which comprises a base, a first antireflective film disposed on a surface of the base, and a second antireflective film disposed on the other surface of the base. The first and second antireflective films each have a plurality of projections on the surface thereof, and the distances between the apexes of two adjacent projections are shorter than or equal to the wavelength of visible light. The light obtained by combining the light reflected from the surface of the first antireflective film and the light reflected from the surface of the second antireflective film together has flat wavelength dispersion within the range of visible light.
    Type: Grant
    Filed: March 24, 2010
    Date of Patent: September 1, 2015
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Takao Imaoku, Akinobu Isurugi
  • Patent number: 9116289
    Abstract: A transparent conductive element is provided and includes a conductive layer having a first surface and a second surface and a medium layer formed on at least one of the first surface and the second surface. In the transparent conductive element, at least one of the first surface and the second surface is a wave surface with a wavelength shorter than or equal to that of visible light; the ratio (Am/?m) of a mean peak-to-peak amplitude Am to a mean wavelength ?m of the wave surface is 1.8 or less. The mean thickness Dm of the conductive layer is larger than the mean peak-to-peak amplitude Am of the wave surface.
    Type: Grant
    Filed: April 21, 2011
    Date of Patent: August 25, 2015
    Assignee: Sony Corporation
    Inventors: Hiroshi Tazawa, Shunichi Kajiya, Kazuya Hayashibe, Sohmei Endoh
  • Patent number: 9042019
    Abstract: The present invention relates to a method of applying an anti-reflective coating to an optical surface of a mold. In one embodiment, the method includes the steps of: providing a lens mold having an optical surface; forming a layer of a super hydrophobic material with a thickness of about 30 to 40 nm over the optical surface, wherein the super hydrophobic material contains dipodal silane; forming an anti-reflective coating layered structure over the layer of the super hydrophobic material; and forming a layer of a cyclic azasilane coupling agent that is deposited with a monolayer thickness to the anti-reflective coating layered structure using vapor deposition or by dip coating using a solution of cyclic azasilane coupling agent in an aprotic solvent.
    Type: Grant
    Filed: October 10, 2012
    Date of Patent: May 26, 2015
    Assignee: QSPEX TECHNOLOGIES, INC.
    Inventors: Kai C. Su, Leslie F. Stebbins, Bill Mantch, Eugene C. Letter
  • Publication number: 20150138638
    Abstract: An optical element includes an optical member made of a material that transmits light; a high refractive index layer and a low refractive index layer that are stacked on a front surface of the optical member; and a surface protection layer that is formed on an upper most layer among the high refractive index layer and the low refractive index layer, the surface protection layer being made of a material including one of a mixed oxide of Si and Sn, a mixed oxide of Si and Zr, and a mixed oxide of Si and Al, and the refraction index of the surface protection layer being less than or equal to the refraction index of the high refractive index layer and greater than or equal to the refraction index of the low refractive index layer.
    Type: Application
    Filed: December 5, 2014
    Publication date: May 21, 2015
    Applicant: ASAHI GLASS COMPANY, LIMITED
    Inventors: Takahiro Mashimo, Susumu Suzuki, Mitsuo Osawa, Koji Miyasaka, Takaaki Murakami
  • Patent number: 8982466
    Abstract: The present invention relates to an optical lens having a lens element produced of plastic, more particularly of plastic which is transparent in a visible spectral range, and having a coating comprising a plurality of layers, the plurality of layers comprising at least one high-refractive-index layer. Furthermore, a hardcoat layer is formed adjacent to the lens element, and a superhydrophobic layer concludes the coating in opposition to the lens element. The at least one high-refractive-index layer has a thickness of less than 40 nm, and the coating overall has a thickness of more than about 380 nm.
    Type: Grant
    Filed: September 30, 2011
    Date of Patent: March 17, 2015
    Assignee: Carl Zeiss Vision International GmbH
    Inventor: Andreas Neuffer
  • Patent number: 8971164
    Abstract: An optical component for an optical pick-up for converging a laser beam having a particular wavelength onto a recording layer of an optical disc. The optical component comprises a base material formed of a resin composition, an undercoating which is formed of three layers of thin films having a same main constituent and is formed on a top surface of the base material, and a functional thin film formed on a top surface of the undercoating. In this configuration, each of a first layer and a third layer of the undercoating is a thin film formed without introducing oxygen, and a second layer is a thin film formed while introducing oxygen. A film thickness of the undercoating falls within a range of 160 nm to 270 nm, and film thicknesses of the thin films constituting the undercoating are substantially equal to each other.
    Type: Grant
    Filed: August 27, 2012
    Date of Patent: March 3, 2015
    Assignee: Hoya Corporation
    Inventors: Kenichi Shinde, Akira Komori, Kazuya Arakawa
  • Publication number: 20150055222
    Abstract: An anti-reflection coating having an three-layer structure comprising first to third layers formed in this order on a substrate, the substrate having a refractive index of 1.6-1.9, the first layer having a refractive index of 1.37-1.57, the second layer having a refractive index of 1.75-2.5, and the third layer having a refractive index of 1.18-1.32, to light in a wavelength range of 550 nm; the third layer being formed by silica aerogel; and the first and second layers containing no Al2O3.
    Type: Application
    Filed: August 6, 2014
    Publication date: February 26, 2015
    Inventors: Takaaki TAMADA, Naohito SASAKI, Hiroyuki NAKAYAMA
  • Patent number: 8958160
    Abstract: The invention discloses a lens, which comprises an outer surface and an inner surface, wherein a pattern outline is printed on the outer surface; and an argon gas layer, a high refractive index layer, a lower refractive index layer and a waterproof layer are evaporated at an area, outside the pattern outline, of the outer surface from inside to outside in turn. By adoption of clear patterns formed on the outer surface by the manufacturing processes and a four-layer vacuum electroplating film evaporated at an area, outside the pattern outline, of the outer surface, the coating does not block the sight and the lens is more beautiful and has the functions of radiation resistance and ultraviolet resistance. The invention also discloses a pattern printing and vacuum electroplating method which has simple and efficient processes and realizes the functions of the coated lens.
    Type: Grant
    Filed: July 16, 2012
    Date of Patent: February 17, 2015
    Assignee: Dongguan Koda Optical Lens Co., Ltd.
    Inventor: Chih-Ming Wu
  • Patent number: 8908275
    Abstract: An optical product includes an optical multilayer film on an optical product base. A color of reflected light of the optical multilayer film satisfies both of the following conditions in a chromaticity diagram (x,y,Y) of a CIE color system: [1] 0.27?x?0.30 and [2] 0.30?y?0.36. The optical product base is a spectacle plastic lens base.
    Type: Grant
    Filed: January 23, 2013
    Date of Patent: December 9, 2014
    Assignee: Tokai Optical Co., Ltd.
    Inventors: Tsuyoshi Fukagawa, Hirotoshi Takahashi, Koji Yamamoto
  • Patent number: 8860869
    Abstract: A lens includes a substrate and an infrared-cut (IR-cut) filtering film. The substrate is made of sapphire, is configured for converging or diffusing light rays and includes an object-side surface and an image-side surface opposite to the object-side surface. The IR-cut filtering film increases the reflectivity of the substrate in relation to infrared light, and is coated on the image-side surface of the substrate.
    Type: Grant
    Filed: October 29, 2012
    Date of Patent: October 14, 2014
    Assignee: Hon Hai Precision Industry Co., Ltd.
    Inventor: Shao-Kai Pei
  • Patent number: 8854733
    Abstract: An optical lens made of resin, which includes a molded body made of a molding material containing a transparent polyamide such as polyamide 12 and a stabilizer, which has total light transmittance of at least 60% when the molded body has a thickness of 2 mm, and has total light transmittance of at least 50% after the molded body maintained at 80° C. was irradiated with light in an amount of 1000 W/m2 for 500 hours by using a xenon lamp, which is lightweight, highly transparent, and resistant to discoloration, deformation, aging, and the like due to irradiation with light emitted from a xenon lamp, a blue-violet laser or the like serving as a light source, and which is suitable for use in a light emitting device of a flash lamp and the like, is provided.
    Type: Grant
    Filed: December 26, 2008
    Date of Patent: October 7, 2014
    Assignee: Sumitomo Electric Fine Polymer, Inc.
    Inventor: Makoto Nakabayashi
  • Patent number: 8810910
    Abstract: An optical device is provided including plural structures formed of a convex portion or a concave portion are arranged on the surface of a base member with a fine pitch equal to or less than the wavelength of visible light. The structures are arranged on the surface of the base member to form plural lines of tracks and form a hexagonal lattice pattern or a quasi-hexagonal lattice pattern. Each structure has an elliptical cone shape or a truncated elliptical cone shape of which the long-axis direction is parallel to the track extending direction.
    Type: Grant
    Filed: February 27, 2009
    Date of Patent: August 19, 2014
    Assignee: Sony Corporation
    Inventors: Sohmei Endoh, Kazuya Hayashibe
  • Patent number: 8746878
    Abstract: An optical member includes a substoichiometric titanium oxide film formed by depositing substoichiometric titanium oxides in a vacuum chamber into which an oxygen gas for adjusting a vacuum is introduced. In the optical member, the film forming pressure p (Pa) in the vacuum chamber and the optical film thickness (a refractive index of 2.50, a wavelength of 500 nm) of the substoichiometric titanium oxide film have relations of (1) p?0.005, (2) optical film thickness ?0.500?, and (3) optical film thickness ?(0.001exp(905.73p)?0.050)? where exp is an exponential function with e as the base of the natural logarithm.
    Type: Grant
    Filed: September 22, 2011
    Date of Patent: June 10, 2014
    Assignee: Tokai Optical Co., Ltd.
    Inventors: Tsuyoshi Fukagawa, Hirotoshi Takahashi, Kazuyoshi Umemura
  • Patent number: 8613520
    Abstract: An optical mirror element includes an optically transmissive element having a first surface and a second surface, and a reflective coating layer on the first surface that defines a mirror surface. A first portion of the first surface does not include the reflective coating layer such that the first portion defines an optically transmissive window in the mirror surface. Q method of forming an optical mirror element having a window portion includes providing an optical element, masking a first portion of a first surface of the optical element, and thereafter applying a reflective coating to the first surface so as to define a reflective surface, wherein the masked portion defines a transmissive region in the reflective surface. The exposed portion of the first surface may be coated with an anti-reflective coating, either before or after the reflective coating is applied.
    Type: Grant
    Filed: July 11, 2008
    Date of Patent: December 24, 2013
    Assignee: LI-COR, Inc.
    Inventors: Tyler Anderson, Ahmed Bouzid
  • Publication number: 20130308192
    Abstract: An optical laminated body includes: a dielectric layer having a surface exposed to air; a metallic layer that has an interface with the dielectric layer, and contains at least Ag; and a laminated body that has an interface with the metallic layer and includes one or more low-refractive-index layers and one or more high-refractive-index layers, wherein a reflectance in a wavelength region of 460 to 650 nm is 0.1% or less.
    Type: Application
    Filed: April 12, 2013
    Publication date: November 21, 2013
    Applicant: SONY CORPORATION
    Inventor: KAZUHITO SHIMODA
  • Publication number: 20130301133
    Abstract: The present invention relates to a method of applying an anti-reflective coating to an optical surface of a mold. In one embodiment, the method includes the steps of providing a lens mold having an optical surface; forming a layer of a super hydrophobic material over the optical surface, wherein the super hydrophobic material contains an amount of dipodal silane that is a relative percentage of the super hydrophobic material; forming an anti-reflective coating layered structure over the layer of the super hydrophobic material; and forming a layer of a coupling agent deposited with a monolayer thickness to the anti-reflective coating layered structure using vapor deposition under aprotic conditions or by dip coating or spin coating using a solution of a coupling agent in an aprotic solvent.
    Type: Application
    Filed: July 16, 2013
    Publication date: November 14, 2013
    Inventors: Kai C. Su, Leslie F. Stebbins, Bill Mantch, Eugene C. Letter
  • Patent number: 8576486
    Abstract: An optical element includes a base and a large number of structures arranged on the surface of the base, the structures being projections or depressions. The structures are arranged at a pitch shorter than or equal to a wavelength of light in a use environment. An effective refractive index in the depth direction of the structures gradually increases toward the base and has two or more inflection points.
    Type: Grant
    Filed: September 18, 2009
    Date of Patent: November 5, 2013
    Assignee: Sony Corporation
    Inventors: Kazuya Hayashibe, Sohmei Endoh, Makiko Oikawa, Shunichi Kajiya
  • Patent number: 8559112
    Abstract: An optical element includes an optical surface formed by a press molding method, wherein a ray effective portion of the optical surface has formed thereon an antireflection structure including a minute uneven structure, which contains a component different from that of a base of the optical element and has an average pitch of 400 nm or less.
    Type: Grant
    Filed: February 12, 2010
    Date of Patent: October 15, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventor: Takeharu Okuno
  • Patent number: 8508874
    Abstract: An optical mirror element includes an optically transmissive element having a first surface and a second surface, and a reflective coating layer on the first surface that defines a mirror surface. A first portion of the first surface does not include the reflective coating layer such that the first portion defines an optically transmissive window in the mirror surface. Q method of forming an optical mirror element having a window portion includes providing an optical element, masking a first portion of a first surface of the optical element, and thereafter applying a reflective coating to the first surface so as to define a reflective surface, wherein the masked portion defines a transmissive region in the reflective surface. The exposed portion of the first surface may be coated with an anti-reflective coating, either before or after the reflective coating is applied.
    Type: Grant
    Filed: July 1, 2011
    Date of Patent: August 13, 2013
    Assignee: LI-COR, Inc.
    Inventors: Tyler Anderson, Ahmed Bouzid
  • Patent number: 8496340
    Abstract: Retroreflective elements and articles that include such elements. The retroreflective elements (100) include a solid spherical core (110) having an outer surface. A first complete concentric optical interference layer (112) overlays the outer surface of the core providing a first interface between the core and the first optical interference layer, and a second complete concentric optical interference layer (122) overlays the first optical interference layer to provide a second interface between the first optical interference layer and the second optical interference layer. In some embodiments, a third complete concentric optical interference layer overlays the second optical interference layer to provide a third interface between the second optical interference layer and the third optical interference layer.
    Type: Grant
    Filed: December 16, 2008
    Date of Patent: July 30, 2013
    Assignee: 3M Innovative Properties Company
    Inventors: Kenton D. Budd, Matthew H. Frey, Christopher K. Haas, Vivek Krishnan
  • Patent number: 8445097
    Abstract: The present invention discloses a multi-layer fluoropolymeric film that is useful as a light capture front sheet in solar modules, and more broadly as an antireflection layer. The present invention further discloses a glass shaped article having a multi-layer fluoropolymeric film disposed upon the surface thereof. The shaped article is useful in applications where it is desirable to reduce reflection of incident light.
    Type: Grant
    Filed: December 17, 2009
    Date of Patent: May 21, 2013
    Assignee: E I du Pont de Nemours and Company
    Inventors: Kostantinos Kourtakis, Mark E. Lewittes, Jose Manuel Rodriguez-Parada
  • Patent number: 8437083
    Abstract: An optical element includes a substrate, and an antireflection film provided on a surface of the substrate. The antireflection film is a graded layer having a refractive index that is progressively decreased from the substrate side towards an outer surface of the antireflection film. The graded layer has a reflectivity characteristic occupying ? of a usable wavelength range around the center of the usable wavelength range. Reflectivity of the graded layer at a maximum value of the reflectivity characteristic is a peak value equal to or less than 0.4% The graded layer does not have a maximal value not corresponding to the peak value. At least one of reflectivities at both ends of the usable wavelength range is equal to or less than half the reflectivity at the peak value.
    Type: Grant
    Filed: May 19, 2010
    Date of Patent: May 7, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventor: Daisuke Sano
  • Publication number: 20130064057
    Abstract: A disclosed objective lens includes: a lens having an entrance surface and an emission surface; and an anti-reflection coat formed on the emission surface, wherein a transmittance T1—0 [%] of the anti-reflection coat when an incident angle of a first laser beam having a first wavelength ?1 (390 nm??1?430 nm) is 0°, and the transmittance T1—40 [%] of the anti-reflection coat when the incident angle of the first laser beam is 40° satisfy 0.95?T1—0/T1—40?1.05, and a transmittance T2—0 [%] of the anti-reflection coat when an incident angle of a second laser beam having a second wavelength ?2 (630 nm??2?680 nm) is 0° and a transmittance T2—40 [%] of the anti-reflection coat when the incident angle of the second laser beam is 40° satisfy 0.85?T2—0/T2—40?0.97.
    Type: Application
    Filed: May 31, 2011
    Publication date: March 14, 2013
    Inventors: Fumitomo Yamasaki, Hiroshi Shiroiwa, Yoshiaki Komma, Junichi Asada, Osamu Kajino, Noriaki Terahara, Toshiyasu Tanaka
  • Publication number: 20130057950
    Abstract: An optical lens includes a lens body and an anti-reflection film. The lens body includes an optically effective portion and a peripheral portion surrounding the optically effective portion. The optically effective portion is configured for transmitting light therethrough. The optically effective portion has a first surface and an opposite second surface. The first and second surfaces each have a curvature of greater than zero. The anti-reflection film is formed on the first surface of the optically effective portion. A reflectivity of the anti-reflection film to light rays has wavelengths in a range from about 400 nm to about 850 nm being lower than 2%.
    Type: Application
    Filed: August 14, 2012
    Publication date: March 7, 2013
    Applicant: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: JUIN-HONG LIN, TAI-SHENG TSAI, SHIH-CHE CHIEN
  • Patent number: 8384998
    Abstract: An antireflection film is provided in which a light scattering property is suppressed. In at least one example embodiment, the antireflection film includes, on a surface thereof, a moth-eye structure including a plurality of convex portions such that a width between vertices of adjacent convex portions is no greater than a wavelength of visible light. In at least one example embodiment of this antireflection film, the moth-eye structure does not include a sticking structure formed when tip end portions of the convex portions are joined to each other.
    Type: Grant
    Filed: December 9, 2011
    Date of Patent: February 26, 2013
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Tokio Taguchi, Takao Imaoku
  • Publication number: 20130038938
    Abstract: An optical component emits or transmits laser light of a wavelength of 460 nm or less, and a first coating formed from a dielectric film is applied upon at least a part of the surface thereof, and a second coating B formed from a dielectric film containing a noble metal or platinum group element is applied upon the first coating.
    Type: Application
    Filed: July 13, 2012
    Publication date: February 14, 2013
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Toshiyuki Kawakami, Takeshi Kamikawa
  • Patent number: 8373929
    Abstract: A very low energy-absorption coating and related methods for use with high power CO2 lasers includes at least a thin layer of ThF4 (16) used as a water/moisture barrier, in combination with BaF2 (14), for various optical elements. When used in connection with a ZnSe substrate (12) or any other suitable material (such as for a focusing lens), the coating (10) extends the useful life by helping prevent moisture adsorption that otherwise may occur within 2-3 days of contact with air. The coating (10) may comprise (1) a BaF2 layer (14) of approximately optical quarter wave thickness, (2) a thin 200-300 Angstrom layer of ThF4 (16) used as a water barrier (3) a thin 1000-2000 Angstrom layer of ZnSe (18), and (4) an optional ZnSe layer (20) of optical half wave thickness. Among other applications, the coating (10) provides very low energy absorption for a 10.6 um CO2 laser at a value<0.15%, and provides longer lifetimes as compared to conventional coated lenses without the combination of BaF2 (14) and ThF4 (16).
    Type: Grant
    Filed: June 18, 2007
    Date of Patent: February 12, 2013
    Inventors: Mark W. Youn, Peter Muys, Yingwu Lian, Kurt Kanzler
  • Publication number: 20130033753
    Abstract: The present invention relates to a method of applying an anti-reflective coating to an optical surface of a mold. In one embodiment, the method includes the steps of: providing a lens mold having an optical surface; forming a layer of a super hydrophobic material with a thickness of about 30 to 40 nm over the optical surface, wherein the super hydrophobic material contains dipodal silane; forming an anti-reflective coating layered structure over the layer of the super hydrophobic material; and forming a layer of a cyclic azasilane coupling agent that is deposited with a monolayer thickness to the anti-reflective coating layered structure using vapor deposition or by dip coating using a solution of cyclic azasilane coupling agent in an aprotic solvent.
    Type: Application
    Filed: October 10, 2012
    Publication date: February 7, 2013
    Applicant: QSpex Technologies, Inc.
    Inventor: QSpex Technologies, Inc.
  • Patent number: 8358467
    Abstract: An article comprising a substrate and an anti-reflection coating, and methods for depositing the coating, are disclosed. The coating comprises (a) a first coating layer having a high refractive index deposited on the substrate; (b) an epoxide-silica coating layer deposited onto the high refractive index coating layer, comprising an inorganic silica component and an organic organo-silicate component, and (c) a silica coating layer consisting essentially of silica, deposited directly onto the epoxide-silica coating layer. The anti-reflection coating optionally comprises a stack of coating layers, between the first high refractive index coating layer and the epoxide-silica coating layer, having alternating a low refractive index and a high refractive index. Individual coating layer compositions, refractive indexes, and thicknesses are carefully controlled such that reflectance is minimized through destructive interference in the visible light wavelength range of 400 to 700 nm.
    Type: Grant
    Filed: September 28, 2011
    Date of Patent: January 22, 2013
    Assignee: Yazaki Corporation
    Inventors: Yongan Yan, Anand Kaygee, Satyabrata Raychaudhuri
  • Patent number: 8339925
    Abstract: An optical information recording/reproducing optical system, comprising a light source; an optical element converting a laser beam into a substantially collimated beam; and an objective lens, wherein a wavelength ? (unit: nm) of the laser beam falls within a range of 400<?<410, the optical element and the objective lens are made of same resin materials or different resin materials having a glass transition temperature of Tg>115° C., each of optical surfaces is configured not to have an optical thin film which contains at least one of or elements of titanium, tantalum, hafnium, zirconium, niobium, molybdenum and chromium, each of optical surfaces of the optical element is provided with an antireflection film made of one of or a mixture of at least two of silicon oxide, aluminum oxide, aluminum fluoride and magnesium fluoride, and a following condition is satisfied ? i = 1 n - 1 ? ( 1 - R ( BL ) ? i 100 ) - ? i = 1 n - 1 ? ( 1 - R ( UV ) ? i 100 ) > 0.
    Type: Grant
    Filed: September 29, 2010
    Date of Patent: December 25, 2012
    Assignee: Hoya Corporation
    Inventors: Satoshi Inoue, Yuta Yoshida, Naoto Hashimoto, Suguru Takishima
  • Patent number: 8325409
    Abstract: Methods and devices are provided for selectively allowing light to pass through a substantially transparent substrate or blocking the light, at least to some degree. Some embodiments provide a plurality of reflective vanes that can be positioned in at least two positions. According to some such implementations, when the vanes are in an open position, incident light is allowed to pass through the window. The light may reflect from two or more vanes before passing through the window. When a sufficient voltage is applied between vane electrodes and other electrodes, the vanes are pulled down, reflecting back at least some of the incident light. The voltage may be controlled according to detected temperature, ambient light intensity, etc.
    Type: Grant
    Filed: June 15, 2009
    Date of Patent: December 4, 2012
    Assignee: Qualcomm MEMS Technologies, Inc.
    Inventors: Srinivasan Sethuraman, Clayton Ka Tsun Chan
  • Patent number: 8320044
    Abstract: Disclosed is an optical element for use in an optical apparatus having a light source which emits a light flux with a wavelength ? (350 nm???450 nm), the optical element containing: a molded portion formed by molding a resin; and one or a plurality of anti-reflection layers formed on the molded portion, wherein at least one of the anti-reflection layers is made of SixOy; and an elemental ratio r (r=y/x) designating an ratio of O to Si in the molecule of SixOy satisfies a requirement represented by Formula (1): 1.40?r?1.80.
    Type: Grant
    Filed: September 29, 2009
    Date of Patent: November 27, 2012
    Assignee: Konica Minolta Opto, Inc.
    Inventors: Hironori Takahashi, Hiroshi Hirayama
  • Patent number: 8305865
    Abstract: An objective lens for an optical information recording/reproducing optical system for an optical disc letting a laser beam impinge on a recording layer of the optical disc, and wherein a center wavelength ? (unit: nm) of the laser beam is in a range defined by a condition: 390???420, a base material of the objective lens is made of resin, the resin has a glass transition temperature Tg and light transmissivity T (unit: %) per a path length of 3 mm at a wavelength of 406 nm defined by conditions: Tg?115° C., 85?T?90, same antireflection films or different types of antireflection films are respectively formed on optical surfaces of the objective lens, and each of the antireflection films formed on the objective lens has a thickness of 100 nm or more in a vicinity of an optical axis of the objective lens.
    Type: Grant
    Filed: September 29, 2010
    Date of Patent: November 6, 2012
    Assignee: Hoya Corporation
    Inventors: Satoshi Inoue, Yuta Yoshida, Naoto Hashimoto, Suguru Takishima
  • Publication number: 20120262790
    Abstract: The present invention relates to a method of making an anti-reflective coating to an optical surface of a mold. In one embodiment, the method includes the steps of: providing a lens mold having an optical surface; forming a layer of a first hydrophobic material with a monolayer thickness over the optical surface; forming a layer of a second hydrophobic material with a thickness of about 10 to 50 nm over the layer of a first hydrophobic material, wherein the first and second hydrophobic materials are different; forming an anti-reflective coating layered structure over the layer of a second hydrophobic material; and forming a layer of a coupling agent that is deposited using vapor deposition and with a thickness of about 1 to 10 nm over the anti-reflective coating layered structure.
    Type: Application
    Filed: April 15, 2011
    Publication date: October 18, 2012
    Applicant: QSPEX TECHNOLOGIES, INC.
    Inventors: Kai C. Su, Leslie F. Stebbins, Bill Mantch, Eugene C. Letter
  • Patent number: 8248699
    Abstract: A reflection reducing film is provided on a surface of an optical substrate, and is sequentially provided with a buffer layer and a reflection reducing layer. The reflection reducing layer includes first to eighth layers sequentially laminated from the side of the buffer layer. The first and sixth layers are made of a low-refractive index material having a refractive index in the range of 1.35 to 1.50 at the d-line, the third, fifth and seventh layers are made of an intermediate-refractive index material having a refractive index in the range of 1.55 to 1.85 at the d-line, and the second, fourth and eighth layers are made of a high-refractive index material having a refractive index in the range of 1.70 to 2.50 at the d-line.
    Type: Grant
    Filed: May 21, 2009
    Date of Patent: August 21, 2012
    Assignee: Fujifilm Corporation
    Inventor: Etsuo Terayama
  • Patent number: 8199404
    Abstract: An anti-reflection coating comprising first to seventh layers formed on a substrate in this order, the first layer being an alumina-based layer, the seventh layer being a porous, silica-based layer, and each of the first to seventh layers having predetermined refractive index and optical thickness in a wavelength range of 400-700 nm.
    Type: Grant
    Filed: December 23, 2008
    Date of Patent: June 12, 2012
    Assignee: Pentax Ricoh Imaging Company, Ltd.
    Inventors: Kazuhiro Yamada, Hiroyuki Nakayama, Mineta Suzuki
  • Patent number: 8154979
    Abstract: Disclosed is an objective lens used for an optical pickup apparatus to perform writing and/or reading of an optical information recording medium, comprising an antireflective film on a surface of a light source side, wherein a light flux of wavelengths including a wavelength ?1 of 380 nm??1?420 nm and a wavelength ?2 of 630 nm??2?810 nm, is condensed on the medium, a numerical aperture on the light source side with respect to the wavelength ?1 is within a range of 0.8-0.9, and that with respect to the wavelength ?2 is 0.7 or less, and a band of the antireflective film is within a range of 700 nm-800 nm in a state where a reflectance of a light flux perpendicularly entering a central portion of the surface in a wavelength region from 400 nm to 1200 nm is 3.0% or less.
    Type: Grant
    Filed: August 26, 2008
    Date of Patent: April 10, 2012
    Assignee: Konica Minolta Opto, Inc.
    Inventor: Kunihiko Taka