By Reflection Patents (Class 359/263)
  • Publication number: 20120120475
    Abstract: Light from an optical fiber is incident on a frequency dispersion element. The frequency dispersion element disperses the incident light into light beams in different directions according to their frequencies and directs the dispersed light beams to a lens. The lens develops the incident light beams over an xy plane according to their frequencies in a strip-like form. A frequency selective element has pixels arranged in a frequency dispersion direction and brings pixels located at positions corresponding to the frequency to be selected into a reflective state. A light beam selected by the frequency selective element is emitted from an optical fiber through the same path. By changing reflection characteristics of the frequency selective element according to each pixel, optical filter characteristics can be desirably changed so as to achieve change of passband width and frequency shift.
    Type: Application
    Filed: December 29, 2010
    Publication date: May 17, 2012
    Inventor: Yasuki SAKURAI
  • Publication number: 20120105932
    Abstract: A device representing a reflector, for example an evanescent reflector or a multilayer interference reflector, with at least one reflectivity stopband is disclosed. A medium with means of generating optical gain is introduced into the layer or several layers of the reflector. The optical gain spectrum preferably overlaps with the spectral range of the reflectivity stopband. This reflector is attached to multilayer passive cavity structure made of semiconducting, and/or dielectric, and/or metallic materials with the inserted tools of achieving wavelength selection of the optical modes. For example, volume Bragg gratings, distributed feedback gratings or patterns, using of vertical optical cavities surrounded by multilayer Bragg reflectors can be applied. The optical modes of the passive optical cavity partially penetrate into the gain region of the reflector.
    Type: Application
    Filed: October 28, 2010
    Publication date: May 3, 2012
    Inventor: Nikolay Ledentsov
  • Patent number: 8164239
    Abstract: To avoid a decline in the reflectivity of an ultraviolet reflection film caused by lighting for an extended period of time and providing a uniform illuminance an excimer lamp has a silica glass discharge vessel with electrodes on opposite sides of the discharge vessel, wherein excimer discharge is generated in the discharge space of the discharge vessel, wherein an ultraviolet reflection film made of silica particles and alumina particles is formed on a surface exposed to the discharge space and wherein the mean particle diameter of silica particles is at least 0.67 times as large as the mean particle diameter of the alumina particles. The alumina particles in the ultraviolet reflection film preferably constitute at least 5 wt % and more preferably at least 10 wt % of the sum of silica particles and alumina particles.
    Type: Grant
    Filed: October 9, 2008
    Date of Patent: April 24, 2012
    Assignee: Ushiodenki Kabushiki Kaisha
    Inventors: Shigeki Fujisawa, Yukihiro Morimoto
  • Patent number: 8102584
    Abstract: An apparatus includes a reconfigurable spatial light modulator capable of spatially modulating an incident wavefront responsive to an image formed on the modulator. A light source is configured to direct a coherent illumination light beam towards the modulator such that the modulator produces a modulated outgoing light beam therefrom. A filter is configured to spatially filter a light pattern formed by the outgoing light beam on a plane to selectively transmit light from a plurality of diffraction peaks therein.
    Type: Grant
    Filed: August 20, 2008
    Date of Patent: January 24, 2012
    Assignee: Alcatel Lucent
    Inventors: Cristian A. Bolle, Christopher D. W. Jones, Roland Ryf, Maria E. Simon
  • Patent number: 8054421
    Abstract: The invention relates to a reflective display panel (9), comprising a plurality of pixels (10, 11a b), each having a modulative portion (15, 16a-b) which is controllable between light-modulation states, and a non-modulative portion (17, 18). The reflective display panel (9) comprises a redirection sheet (14) having a plurality of redirecting structures (19, 20) each being configured to redirect ambient light incident thereon towards an adjacent modulative portion (15, 16a-b). Through the invention, the portion of the light which would otherwise have hit the non-modulative portion of the pixel and would not have contributed constructively to the image forming of the display panel is instead directed towards the modulative portion of the pixel and can thereby contribute to the brightness as well as to the contrast of the reflective display panel.
    Type: Grant
    Filed: April 1, 2008
    Date of Patent: November 8, 2011
    Assignee: Adrea, LLC
    Inventors: Sander Jurgen Roosendaal, Martinus Hermanus Wilhelmus Maria Van Delden
  • Patent number: 8040588
    Abstract: An interferometric modulator array device with backlighting is disclosed. The interferometric modulator array device comprises a plurality of interferometric modulator elements, wherein each of the interferometric modulator elements comprises an optical cavity. The interferometric modulator array includes an optical aperture region, and at least one reflecting element is positioned so as to receive light passing through the optical aperture region and reflect at least a portion of the received light to the cavities of the interferometric modulator elements. In some embodiments, the interferometric modulator elements may be separated from each other such that an optical aperture region is formed between adjacent interferometric modulator elements.
    Type: Grant
    Filed: February 25, 2008
    Date of Patent: October 18, 2011
    Assignee: QUALCOMM MEMS Technologies, Inc.
    Inventors: Clarence Chui, Ming-Hau Tung
  • Publication number: 20110235149
    Abstract: A total internal reflection (TIR) modulator includes a member comprising an electro-optic material; a plurality of first electrode sets; a plurality of second electrode sets; and a first set of electrical conductors, each electrical conductor in the first set of electrical conductors being coupled to one of the second electrode sets wherein the electrodes in each second electrode set are arranged in an interdigitated relationship with the electrodes in one of the first electrode sets; and each of the first electrode sets comprises a first electrode, the first electrodes being arranged in an interdigitated relationship with the electrical conductors in the first set of electrical conductors.
    Type: Application
    Filed: March 24, 2010
    Publication date: September 29, 2011
    Inventors: James G. Ko, Reynolds W. Meritt
  • Patent number: 8023170
    Abstract: A total internal reflection (TIR) modulator includes a member comprising an electro-optic material; a plurality of first electrode sets; a plurality of second electrode sets; and a first set of electrical conductors, each electrical conductor in the first set of electrical conductors being coupled to one of the second electrode sets wherein the electrodes in each second electrode set are arranged in an interdigitated relationship with the electrodes in one of the first electrode sets; and each of the first electrode sets comprises a first electrode, the first electrodes being arranged in an interdigitated relationship with the electrical conductors in the first set of electrical conductors.
    Type: Grant
    Filed: March 24, 2010
    Date of Patent: September 20, 2011
    Assignee: Eastman Kodak Company
    Inventors: James G. Ko, Meritt W. Reynolds
  • Publication number: 20110181937
    Abstract: An electro-optic device including: an electro-optical panel having an electro-optic substance held between an element substrate and an opposed substrate; and a dust-proof substrate bonded to a surface of the opposed substrate opposite from a surface thereof opposing the element substrate; wherein one of the opposed substrate and the dust-proof substrate is formed of a first material having a coefficient of linear expansion of a positive pole, and the other one of the opposed substrate and the dust-proof substrate is formed of a second material having a coefficient of linear expansion of a negative pole.
    Type: Application
    Filed: January 20, 2011
    Publication date: July 28, 2011
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Tomoaki MIYASHITA
  • Patent number: 7967445
    Abstract: An image projecting apparatus enables the formation of a projected image faithful to original image information by reducing degradation in the projected image due to decrease in imaging performance of a projection optical system. Image information is processed by an image processing device, which includes a first and a second image processor. A light modulating device modulates a flux of light emitted by an illumination optical system based on the processed image information. The modulated flux of light is projected on a screen by a projection optical system. If the image information processed by the first image processor in a pixel region is not within a representable modulation range of the light modulating device, the image information is processed by the second image processor.
    Type: Grant
    Filed: November 13, 2007
    Date of Patent: June 28, 2011
    Assignee: Ricoh Company, Ltd.
    Inventors: Yukiko Hamano, Ryosuke Kasahara, Toshiyuki Kawasaki
  • Publication number: 20110075241
    Abstract: Interferometric modulators and methods of making the same are disclosed. In one embodiment, an interferometric modulator includes an interferometric reflector having a first reflective surface, a second reflective surface, and an optical resonant layer defined by the first reflective surface and the second reflective surface. The interferometric reflector can be configured to transmit a certain spectrum of light at a transmission peak wavelength such that the interferometric modulator has a diminished reflectance of light at the transmission peak wavelength.
    Type: Application
    Filed: September 28, 2009
    Publication date: March 31, 2011
    Applicant: QUALCOMM MEMS Technologies, Inc.
    Inventors: Marek Mienko, Jonathan Charles Griffiths
  • Publication number: 20110074659
    Abstract: A high speed optical shutter, a method of operating the high speed optical shutter, and an optical apparatus including the high speed optical shutter. The optical shutter includes a transparent electro-optical medium in an active solid state having a total internal reflection surface on which an angle of total internal reflection is changed by an external action. The transparent electro-optical medium may be a prism or a prism array whose angle of total internal reflection is changed by the external action. An incident light path changing unit may be further arranged in front of the transparent electro-optical medium. Also, a light path changing unit may be further arranged so as to allow light passing through the electro-optical medium to be perpendicularly incident on an incidence target object.
    Type: Application
    Filed: March 17, 2010
    Publication date: March 31, 2011
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Yong-hwa PARK, Alexander GORELOV, Stanislav SHTYKOV, Alexander SHIRANKOV
  • Publication number: 20110051217
    Abstract: An electro-optic device with a doped semiconductor base and a plurality of pixels on the semiconductor base. Pixels include oppositely doped semiconductor layer and a top electrode formed on the oppositely doped semiconductor layer. The top electrode has a grid pattern with at least one busbar and a plurality of fingers extending from the busbar, and spacing between the fingers decreases with distance from the bondpad along the busbar. Each pixel can also include a multiple quantum well formed on the semiconductor base. The top electrode shape produces an approximately uniform lateral resistance in the pixel. An embodiment is a large area modulator for modulating retro-reflector systems, which typically use large area surface-normal modulators with large lateral current flow. Uniform resistance to each part of the modulator decreases location dependence of frequency response. A chirped grid electrode balances semiconductor sheet resistance and metal line resistance components of the series resistance.
    Type: Application
    Filed: November 9, 2010
    Publication date: March 3, 2011
    Applicant: The Government of the US, as represented by the Secretary of the Navy
    Inventors: Peter G. Goetz, William S. Rabinovich
  • Publication number: 20110026090
    Abstract: A collimated periscope that is switchable between a normal optical view of the outside, a display view, and an overlay view in which the outside view and display view are combined. The switching element is an electronically switchable mirror with primarily reflective, primarily transparent, and intermediate states, depending on the application of electrical potentials.
    Type: Application
    Filed: May 15, 2010
    Publication date: February 3, 2011
    Inventors: Jeffrey Wayne Minor, Henry Clarence Davies, Edward Charles Schwartz, Michael James Klingensmith, Thomas Patrick Ryan
  • Patent number: 7878656
    Abstract: A stereo projection optical system includes a first polarizing beam splitter, a transmission-type light modulator positioned to receive the first polarized light component from the first polarizing light splitter and an image assimilator positioned to receive an emergent light of the transmission-type light modulator. The image assimilator includes a second polarized light splitter and first, second reflective spatial light modulators. The stereo projection optical systems provide viewers three-dimensional images formed by two alternative polarization light beams whose polarizations are perpendicular to each other utilizing the transmission-type light modulators to form ā€œ3-Dā€ images.
    Type: Grant
    Filed: December 7, 2007
    Date of Patent: February 1, 2011
    Assignee: Hon Hai Precision Industry Co., Ltd.
    Inventors: Chien-Wen Hsu, Chia-Hung Kao
  • Patent number: 7878664
    Abstract: A projector includes a projecting module for projecting a projecting image on a screen panel, an image sensor for capturing an image of an object which is located outside of the projecting module and faces toward the lens module, a light director, and a controlling unit. The projecting module has a lens module and a light source for emitting light transmitting through the lens module. The light director is movable between a first position where the light director is located outside of a light path associated with the lens module, and a second position where the light director is configured for directing light of the object through the lens module to be incident on the image sensor. The controlling unit controls the light director to move between the first and second positions.
    Type: Grant
    Filed: December 10, 2007
    Date of Patent: February 1, 2011
    Assignee: Hon Hai Precision Industry Co., Ltd.
    Inventors: Ming-Shan Chan, Sheng-An Wang
  • Patent number: 7844079
    Abstract: A technique, associated system and program code, for retrieving depth information about at least one surface of an object, such as an anatomical feature. Core features include: projecting a composite image comprising a plurality of modulated structured light patterns, at the anatomical feature; capturing an image reflected from the surface; and recovering pattern information from the reflected image, for each of the modulated structured light patterns. Pattern information is preferably recovered for each modulated structured light pattern used to create the composite, by performing a demodulation of the reflected image. Reconstruction of the surface can be accomplished by using depth information from the recovered patterns to produce a depth map/mapping thereof.
    Type: Grant
    Filed: September 15, 2008
    Date of Patent: November 30, 2010
    Assignee: University of Kentucky Research Foundation (UKRF)
    Inventors: Laurence G. Hassebrook, Daniel L. Lau, Chun Guan
  • Patent number: 7839554
    Abstract: In one aspect, the invention provides a defect multiple-quantum-well structure for manipulation of reflection and transmission of light by way of optical control of spatial distribution of electric field across the defect multiple-quantum-well structure. The defect multiple-quantum-well structure includes a pair of terminal multiple-quantum-well structures and a central multiple-quantum-well structure. The central multiple-quantum-well structure is sandwiched between the pair of terminal multiple-quantum-well structures. Each of the pair of terminal multiple-quantum-well structures has a band gap profile, and the central multiple-quantum-well structure has a band gap profile. The band gap profile of the central multiple-quantum-well structure is greater than the band gap profile of each of the pair of terminal multiple-quantum-well structures.
    Type: Grant
    Filed: October 22, 2007
    Date of Patent: November 23, 2010
    Assignee: Research Foundation of the City University of New York
    Inventors: Lev Deych, Alexander Lisyansky
  • Patent number: 7813023
    Abstract: A reflective element assembly for an interior rearview mirror of a vehicle includes front and rear substrates with a perimeter seal that spaces said front substrate from said rear substrate and establishes an interpane cavity therebetween for an electro-optic medium. The front substrate has a first connecting tab that extends outboard from a perimeter edge of the rear substrate and the rear substrate has a second connecting tab that extends outboard from a perimeter edge of the front substrate. The first and second connecting tabs may extend partially along the same perimeter edge region of the reflective element assembly or along adjacent perimeter edge regions of the reflective element assembly. The first and second connecting tab facilitate electrical connection to the transparent conductive coating of the second surface of the front substrate and the conductive coating of the third surface of the rear substrate, respectively.
    Type: Grant
    Filed: June 8, 2009
    Date of Patent: October 12, 2010
    Assignee: Magna Mirrors of America, Inc.
    Inventor: Michael J. Baur
  • Patent number: 7800190
    Abstract: A microelectromechanical system (MEMS) hermetically sealed package device that is less labor intensive to construct and thus less expensive to manufacture. An example package device includes a package having a bottom section and a lid. A MEMS die includes upper and lower plates made in accordance with upper sense plate design. The MEMS die is mounted to the bottom section. The upper and lower plates form a cavity that receives a MEMS device. The upper and lower plates are bonded by one or more bond pads and a seal ring that surrounds the cavity. The seal ring includes grooves that allow exposure of the cavity to the space within the package. A getter material applied to a top surface of the MEMS die on the upper plate. The getter material is activated during or after the lid is mounted to the bottom section.
    Type: Grant
    Filed: June 16, 2008
    Date of Patent: September 21, 2010
    Assignee: Honeywell International Inc.
    Inventors: Bryan Seppala, Jon DCamp, Max Glenn
  • Patent number: 7782517
    Abstract: One inventive aspect relates to a display comprising a display element configured to selectively reflect light of a first wavelength in the infrared range and light of a second wavelength in the visible spectrum. Another inventive aspect relates to a color display comprising at least three reflective display elements. Each display element is configured to selectively reflect light of a different wavelength in the visible range. At least one of the three reflective display element is further configured to selectively reflect light of a wavelength in the infrared range.
    Type: Grant
    Filed: June 21, 2007
    Date of Patent: August 24, 2010
    Assignee: QUALCOMM MEMS Technologies, Inc.
    Inventors: Jonathan Charles Griffiths, Jeffrey B. Sampsell
  • Publication number: 20100201676
    Abstract: A periscope that is switchable between the normal optical view of the outside, a display view, and an overlay view in which the outside view and display view are combined. The switching element is an electronically switchable mirror with primarily reflective, primarily transparent, and intermediate states, depending on the application of electrical potentials.
    Type: Application
    Filed: April 17, 2010
    Publication date: August 12, 2010
    Inventors: Jeffrey Wayne Minor, Henry Clarence Davies, Edward Charles Schwartz, Michael James Klingensmith
  • Publication number: 20100182672
    Abstract: An optical switch for switching between transmission and total reflection of incident light 101 applied to electro-optical crystal 104 by applying an electric field to electro-optical crystal 104 to thereby change the refractive index of electro-optical crystal 104 includes a plurality of electrodes 105 disposed in electro-optical crystal 104 to provide electrode assembly 106 for applying the electric field to electro-optical crystal 104. Electro-optical crystal 104 has a refractive index changing portion (not shown) whose refractive index is changed by the electric field applied by electrode assembly 106, the refractive index changing portion enclosing electrode assembly 106 in its entirety. The refractive index changing portion has a flat refractive index boundary.
    Type: Application
    Filed: June 18, 2008
    Publication date: July 22, 2010
    Applicant: NEC Corporation
    Inventors: Eiji Akiyama, Fujio Okumura, Osamu Ishibashi
  • Publication number: 20100177372
    Abstract: Disclosed are an optical image modulator, an optical apparatus including the same, and methods of manufacturing and operating the optical image modulator. The optical image modulator includes a light amount increasing unit increasing the amount of forward light emission of an electric-optical unit. The light amount increasing unit includes a first reflector reflecting light, which travels from the inside of the electric-optical unit toward the optical-electric unit, to the electric-optical unit. The light amount increasing unit may further include a second light reflector reflecting light, which passes through the optical-electric unit without optical-electric conversion, to the optical-electric unit.
    Type: Application
    Filed: November 10, 2009
    Publication date: July 15, 2010
    Applicants: Samsung Electronics Co., Ltd., Gwangju Institute of Science and Technology
    Inventors: Yong-hwa PARK, Jae-hyung JANG, Yong-chul CHO, Chang-soo PARK, Byeong-ha LEE
  • Publication number: 20100172008
    Abstract: A reflective mirror assembly includes an electro-optic reflective element providing a rearward field of view to a driver of a vehicle equipped with the reflective mirror assembly. The electro-optic reflective element includes an electro-optic medium disposed between a front substrate and a rear substrate in a cavity established by a seal that connects the front substrate to the rear substrate and that spaces them apart. An overhang region at a first edge region of the front substrate extends beyond a corresponding first edge region of the rear substrate. A transparent electrical conductor is disposed at the front substrate and a mirror reflector is disposed at the rear substrate. An electrically conducting tab extends outward from said seal at least partially to the edge of the rear substrate while making electrical contact with the mirror reflector. At least one hiding layer is disposed around a perimeter region of the front substrate.
    Type: Application
    Filed: March 19, 2010
    Publication date: July 8, 2010
    Applicant: DONNELLY CORPORATION
    Inventors: Ian A. McCabe, Desaraju Varaprasad, Hamid Habibi, Niall R. Lynam
  • Publication number: 20100165437
    Abstract: Various structures for variable reflectance rearview mirrors and variable transmittance windows are disclosed. One embodiment pertains to the provision of a polarized reflector in a rearview mirror. Another embodiment pertains to the provision of a switchable cholesteric liquid crystal element in a window. Yet another embodiment pertains to the provision of a plurality of apertures in a reflector layer of a rearview mirror where the apertures are sized and positioned in alignment with light emitting areas of a display positioned behind the reflector layer. In another embodiment, a moveable display or mirror element is attached to a rearview mirror housing.
    Type: Application
    Filed: January 22, 2010
    Publication date: July 1, 2010
    Applicant: Gentex Corporation
    Inventors: William L. Tonar, Frederick T. Bauer, Alan R. Watson
  • Publication number: 20100157408
    Abstract: A display device may include a substrate, a thin film layer formed on the substrate and/or having a light absorptance that varies according to an electric field applied to the thin film layer, and/or electrodes disposed to apply the electric field to the thin film layer and/or configured to change the electric field applied to the thin film layer.
    Type: Application
    Filed: December 8, 2009
    Publication date: June 24, 2010
    Inventor: Hyun-jong Chung
  • Patent number: 7733553
    Abstract: An electronic light modulator device for at least partially displaying a pixel of an image, the device comprising first and second reflectors defining an optical cavity therebetween, the optical cavity being selective of an electromagnetic wavelength at an intensity by optical interference, the device having at least first and second optical states, at least one of the optical states being tunable and the other not tunable.
    Type: Grant
    Filed: September 21, 2005
    Date of Patent: June 8, 2010
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Kenneth Faase, Adel Jilani, James C. McKinnell, Eric L. Nikkel, Arthur Piehl, James R. Przybyla, Bao-Sung Bruce Yeh
  • Publication number: 20100118377
    Abstract: An array of two or more tunable electro-optical reflecting elements where the phase response of one or more elements may be adjusted by a variety of approaches including, but not limited to: a liquid crystal superstrate, schottky contact(s), ultra-violet radiation pulses, and illumination of photoconductive substrates. Methods and apparatus for direct and/or adaptive control of phase response via the above approaches are also discussed.
    Type: Application
    Filed: August 28, 2009
    Publication date: May 13, 2010
    Inventors: Thomas E. HABERFELDE, Edit L. Braunstein, Glenn Boreman, James Ginn, David Shelton, Gene D. Tener, Andrew H. Hawkins
  • Publication number: 20100118239
    Abstract: The invention relates to a reflective display panel (9), comprising a plurality of pixels (10, 11a b), each having a modulative portion (15, 16a-b) which is controllable between light-modulation states, and a non-modulative portion (17, 18). The reflective display panel (9) comprises a redirection sheet (14) having a plurality of redirecting structures (19, 20) each being configured to redirect ambient light incident thereon towards an adjacent modulative portion (15, 16a-b). Through the invention, the portion of the light which would otherwise have hit the non-modulative portion of the pixel and would not have contributed constructively to the image forming of the display panel is instead directed towards the modulative portion of the pixel and can thereby contribute to the brightness as well as to the contrast of the reflective display panel.
    Type: Application
    Filed: April 1, 2008
    Publication date: May 13, 2010
    Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.
    Inventors: Sander Jurgen Roosendaal, Martinus Hermanus Wilhelmus Maria Van Delden
  • Publication number: 20100103495
    Abstract: A high-speed optical modulator based on Surface Plasmon-Polariton (SPP) at the hetero-junction of a metal-insulator-semiconductor (MIS) tunneling diode and including a phase-matching optical element, such as a prism or gold-lattice structure, is described. An investigation using the coupled mode theory shows that the applied bias across the hetero-junction changes the optical reflectance of an optically coupled MIS tunneling diode, such as a prism-coupled MIS tunneling diode or a gold lattice-coupled MIS tunneling diode, while the modulation efficiency achievable of the device depends on the thickness of the metal film used to construct the tunneling diode.
    Type: Application
    Filed: October 28, 2009
    Publication date: April 29, 2010
    Applicant: BOISE STATE UNIVERSITY
    Inventor: WAN KUANG
  • Patent number: 7697188
    Abstract: The present invention provides a projection display system, comprising: plural laser light sources; an illumination optical system for illuminating, in different beam axes, light beams emitted from the individual laser light sources; a deflection mirror device, constituted by plural mirror elements, for modulating the light beams illuminated by the illumination optical system; and a projection optical system for projecting a reflection light from the deflection mirror device illuminated by the light beams.
    Type: Grant
    Filed: December 19, 2007
    Date of Patent: April 13, 2010
    Assignees: Silicon Quest Kabushiki-Kaisha, Olympus Corporation
    Inventors: Yoshihiro Maeda, Fusao Ishii, Hirotoshi Ichikawa, Kazuma Arai
  • Publication number: 20100079843
    Abstract: The present invention provides an apparatus that includes a waveguide and one or more pixels deployed adjacent the top surface of the waveguide which contains TIR light therein. Each pixel includes a deformable active layer having a first conductor and a driver electronics layer having a second conductor. The driver electronics layer is deployed in spaced-apart relation to the active layer and opposite the waveguide. In a quiescent state of a pixel, the active layer is in contact or near contact with the top surface of the waveguide so as to optically couple light out via FTIR (i.e., pixel's ON state). To actuate the pixel, the electronics layer is configured to selectively apply an electrical potential difference to the second conductor thereby causing the active layer to move away from the top surface so as to prevent the optical coupling of light out of the waveguide (i.e., pixel's OFF state).
    Type: Application
    Filed: August 24, 2009
    Publication date: April 1, 2010
    Inventors: Kevin J. Derichs, Carey King, Daniel K. Van Ostrand, Berry Tod Cox, Reed J. Killion
  • Publication number: 20100079881
    Abstract: A mirror reflective element assembly for an exterior rearview mirror assembly of a vehicle includes a reflective element and an auxiliary wide angle element. The reflective element has a front surface and a rear surface and a first reflector portion and a second reflector portion, with the first reflector portion having a first reflective coating disposed thereat. The auxiliary wide angle element is disposed at a rear surface of the glass mirror substrate of the reflective element and at the second reflector portion. The auxiliary wide angle element has a glass element having a curved rear surface with a second reflective coating disposed at the curved rear surface. An optical coupling element may be disposed between a front surface of the auxiliary wide angle element and the rear surface of the reflective element, the optical coupling element may be a substantially optically clear and flexible elastomer.
    Type: Application
    Filed: September 17, 2009
    Publication date: April 1, 2010
    Applicant: MAGNA MIRRORS OF AMERICA, INC.
    Inventors: Niall R. Lynam, Mitchell D. Burkhert, Tyson P. DeJonge, Hamid Habibi, Keith D. Foote, Donald S. Rawlings, Michael J. Baur
  • Publication number: 20100046059
    Abstract: An interior rearview mirror system includes an interior rearview mirror assembly including a reflective element having a transparent substrate and a multi-zone mirror reflector established at a surface thereof. The mirror reflector includes at least a first zone and a second zone, and wherein at least one metallic reflective layer is commonly established at the surface and across the first and second zones of the mirror reflector. A display device is disposed behind the second zone of the mirror reflector and, when the display device is operating to emit display information, emitted display information passes through the second zone of the mirror reflector for viewing by a driver operating the equipped vehicle. The second zone has a degree of transmissivity of light therethrough that is greater than a degree of transmissivity of light through the first zone of the mirror reflector.
    Type: Application
    Filed: September 8, 2009
    Publication date: February 25, 2010
    Applicant: Donnelly Corporation
    Inventors: Ian A. McCabe, Hamid Habibi, Desaraju V. Varaprasad, Niall R. Lynam
  • Publication number: 20100027097
    Abstract: In one aspect, the invention provides a defect multiple-quantum-well structure for manipulation of reflection and transmission of light by way of optical control of spatial distribution of electric field across the defect multiple-quantum-well structure. The defect multiple-quantum-well structure includes a pair of terminal multiple-quantum-well structures and a central multiple-quantum-well structure. The central multiple-quantum-well structure is sandwiched between the pair of terminal multiple-quantum-well structures. Each of the pair of terminal multiple-quantum-well structures has a band gap profile, and the central multiple-quantum-well structure has a band gap profile. The band gap profile of the central multiple-quantum-well structure is greater than the band gap profile of each of the pair of terminal multiple-quantum-well structures.
    Type: Application
    Filed: October 22, 2007
    Publication date: February 4, 2010
    Applicant: Research Foundation of the City University of New York
    Inventors: Lev Deych, Alexander Lisyansky
  • Publication number: 20090303564
    Abstract: A reflective element assembly for an interior rearview mirror of a vehicle includes front and rear substrates with a perimeter seal that spaces said front substrate from said rear substrate and establishes an interpane cavity therebetween for an electro-optic medium. The front substrate has a first connecting tab that extends outboard from a perimeter edge of the rear substrate and the rear substrate has a second connecting tab that extends outboard from a perimeter edge of the front substrate. The first and second connecting tabs may extend partially along the same perimeter edge region of the reflective element assembly or along adjacent perimeter edge regions of the reflective element assembly. The first and second connecting tab facilitate electrical connection to the transparent conductive coating of the second surface of the front substrate and the conductive coating of the third surface of the rear substrate, respectively.
    Type: Application
    Filed: June 8, 2009
    Publication date: December 10, 2009
    Applicant: MAGNA MIRRORS OF AMERICA, INC.
    Inventor: Michael J. Baur
  • Publication number: 20090302239
    Abstract: The present invention relates to a dielectric lens able to be used in both the radio wave band and the light wave band, and a device using this dielectric lens. The device comprises a dielectric lens formed of a transparent dielectric member being small in dielectric loss and having an omni-directional feature with regard to an electromagnetic wave, a transparent dielectric shell being hollow inside and having the radius of any one surface of this hollow shape that is equal to the focal distance of the dielectric lens, and a holding mechanism for positioning and holding the dielectric shell and the dielectric lens so as to locate the dielectric shell at a position along the focal distance with the dielectric lens included at the inner center of this dielectric shell. The device is provided, at the focal point of the dielectric lens, with a reflector for reflecting an electromagnetic wave or a generator for generating an electromagnetic wave.
    Type: Application
    Filed: July 27, 2005
    Publication date: December 10, 2009
    Applicant: LENSTAR CO., LTD.
    Inventors: Naruto Yonemoto, Motoharu Matsuzaki
  • Patent number: 7612939
    Abstract: A transmissive phase plate with a function of correcting direction of polarization of light rays in an incident divergent or convergent light flux in addition to functions as a wave plate. Conditions of polarization of incident light rays are corrected by a polarization-correcting optical multi-layer coating which is formed by alternately depositing a high refractivity layer and a low refractivity layer on curved substrative surface of a predetermined radius of curvature. The transmissive phase plate can be applied to correct conditions of polarization of incident light rays of a polarized beam splitter for the purpose of improving contrast ratio of a projection display.
    Type: Grant
    Filed: November 3, 2006
    Date of Patent: November 3, 2009
    Assignee: Fujinon Corporation
    Inventors: Shigeru Kato, Takuya Komatsu, Yoshiji Kawamura
  • Publication number: 20090268271
    Abstract: An apparatus for shifting the frequency of light comprises a modulator comprising one or more light-reflective elements. The elements are arranged in N groups that are interleaved along the surface of the modulator. The elements are deflected in time in a periodic sawtooth or sinusoidal N-phase manner. The frequency shift can be varied continuously and quickly. Such a modulator may be operated at zero frequency shift, to produce an optical phase shift.
    Type: Application
    Filed: February 9, 2009
    Publication date: October 29, 2009
    Inventor: Meritt Reynolds
  • Patent number: 7604984
    Abstract: An optical reader system is described herein that uses a scanned optical beam to interrogate a biosensor to determine if a biomolecular binding event occurred on a surface of the biosensor. In one embodiment, the optical reader system includes a light source, a detector and a processor (e.g., computer, DSP). The light source outputs an optical beam which is scanned across a moving biosensor and while this is happening the detector collects the optical beam which is reflected from the biosensor. The computer processes the collected optical beam and records the resulting raw spectral or angle data which is a function of a position (and possibly time) on the biosensor. The processor can then analyze the raw data to create a spatial map of resonant wavelength (peak position) or resonant angle which indicates whether or not a biomolecular binding event occurred on the biosensor. Several other uses of the raw data are also described herein.
    Type: Grant
    Filed: December 29, 2004
    Date of Patent: October 20, 2009
    Assignee: Corning Incorporated
    Inventors: Anthony G. Frutos, Jacques Gollier, Jinlin Peng, Garrett A. Piech, Michael B. Webb
  • Publication number: 20090244683
    Abstract: One embodiment includes display comprising a light modulator configured to display a portion of an image such as a reflective light modulator, a light emitter configured to display the portion of the image and a circuit configured to selectively provide signals to at least one of the light modulator and the light emitter indicative of the portion of the image. In one such embodiment, an active matrix provides a simple, efficient drive for such devices. Other embodiments methods of making and driving such devices.
    Type: Application
    Filed: March 28, 2008
    Publication date: October 1, 2009
    Applicant: QUALCOMM MEMS Technologies, Inc.
    Inventor: Je-Hsiung Lan
  • Publication number: 20090243824
    Abstract: A mirror system of a vehicle includes an interior rearview mirror assembly having a reflective element and an information input display providing a display representative of a plurality of input characters. The information input display is disposed behind the reflective element and viewable through the reflective element and a transflective mirror reflector of the reflective element when the information input display is backlit by a backlighting device. A control is operable to determine a location of a touch or proximity of an object at the reflective element and correlate the determined location to an input character of the information input display. The mirror system may include a video display for displaying video images and the information input display may be disposed at a main viewing region of the reflective element so as to provide an information input display that is larger than the video display.
    Type: Application
    Filed: March 30, 2009
    Publication date: October 1, 2009
    Applicant: Magna Mirrors of America, Inc.
    Inventors: Kenneth C. Peterson, Keith D. Foote, Richard R. Hook, Eric S. Deuel, Niall R. Lynam
  • Publication number: 20090231512
    Abstract: A display is provided that comprises a reflection board and a display element. The reflection board includes a plurality of first inclinations and a plurality of second inclinations which are alternately arranged to form an uneven reflective surface to reflect and diffuse incident light. The display element has controllable transparency at each pixel and is disposed in front of the reflective surface. The mean inclination angle of the first inclination occurs within a range of 10 to 25 degrees.
    Type: Application
    Filed: March 13, 2009
    Publication date: September 17, 2009
    Applicants: TOHOKU UNIVERSITY, HOYA CORPORATION
    Inventors: Tatsuo UCHIDA, Takahiro ISHINABE, Yoshito SUZUKI, Keiji SAWANOBORI
  • Patent number: 7589882
    Abstract: A modulator for an optical transceiver is disclosed. The modulator has two quarter-wave stack mirrors composed of alternating dielectric layers with an optically absorbing layer sandwiched in between to form the vertical resonant cavity. The optically absorbing layer is made of semiconductor nanocrystals embedded in a dialectic material. The device is configured to operate near the saturation point of the absorption layer. By adjusting the biasing voltage across the absorption layer, the saturation threshold of the semiconductor nanocrystals is altered, resulting in the overall reflectivity of the resonant cavity to vary. The modulator is configured to be fabricated as the extension of the backend process of Si CMOS.
    Type: Grant
    Filed: October 11, 2007
    Date of Patent: September 15, 2009
    Inventors: Ya-Hong Xie, Bin Shi
  • Patent number: 7580173
    Abstract: There is provided an optical information detecting method comprising: detecting an image of a source data page containing a frame mask by the use of an optical detection region within respective 1:N (where N is greater than 1) excessive detection pixels; monitoring a light intensity of the detected image and determining a matching state of the frame mask; determining an arrangement pattern of valid detection pixels of the detection pixels in accordance with the determined matching state of the frame mask and detecting sampling detection pixels; and sampling an image of the sampling detection pixels from the detected image and reproducing the image of the source data page. There is also an optical information detector used to put the optical information detecting method into practice. Accordingly, it is possible to detect optical information with high reliability without performing complex calculation by the use of a 1:N over-sampling method.
    Type: Grant
    Filed: July 13, 2006
    Date of Patent: August 25, 2009
    Assignee: Daewoo Electronics Corporation
    Inventor: Pil-Sang Yoon
  • Patent number: 7557980
    Abstract: An optical path switching device is provided. The optical path switching device utilizes the electro-optic effect to apply an electric field on different reflective elements without moving an input/output end of optical signal or reflective elements. Thus, the reflective elements reflect optical beams to control travel paths of the optical beams, so as to switch the optical paths in the absence of mechanical motion.
    Type: Grant
    Filed: September 17, 2007
    Date of Patent: July 7, 2009
    Assignee: Inventec Multimedia & Telecom (Tianjin) Co., Ltd.
    Inventor: Kevin Lu
  • Publication number: 20090161193
    Abstract: The present invention provides a projection display system, comprising: plural laser light sources; an illumination optical system for illuminating, in different beam axes, light beams emitted from the individual laser light sources; a deflection mirror device, constituted by plural mirror elements, for modulating the light beams illuminated by the illumination optical system; and a projection optical system for projecting a reflection light from the deflection mirror device illuminated by the light beams.
    Type: Application
    Filed: December 19, 2007
    Publication date: June 25, 2009
    Inventors: Yoshihiro Maeda, Fusao Ishii, Hirotoshi Ichikawa, Kazuma Arai
  • Patent number: 7551342
    Abstract: A resonance system (14, 15) is formed by a light incident side reflection mirror and a light exiting side reflecting mirror, arranged parallel to each other. The light incident on an incident side reflective mirror (14) is propagated in the outward path direction or in the backward path direction so that the light is set in a resonant state. The light in the resonant state in the resonance system (14, 15) is phase-modulated, responsive to a modulating signal supplied from an oscillating device (16) by a light modulation device (2) arranged between the light incident side reflective mirror (14) and the light exiting side reflective mirror (15). The oscillating device oscillates the modulating signal of a frequency fm.
    Type: Grant
    Filed: November 4, 2004
    Date of Patent: June 23, 2009
    Assignee: Optical Comb Institute, Inc.
    Inventors: Motonobu Kourogi, Kazuhiro Imai, Widiyatmoko Bambang
  • Publication number: 20090141331
    Abstract: An interior rearview mirror assembly for vehicles includes a mirror case having a reflective element and a carrier positioned in the mirror case. The mirror case is adapted to mount to a vehicle. The reflective element includes a substrate, with a reflective coating on one side of the substrate, and a window therethrough. The carrier has a display element for displaying one or more indicia through the window to define a display area on the reflective element. The carrier comprises a plate member, with a first portion and a second portion offset rearwardly from the reflective element and from the first portion. The second portion includes the display element. Preferably, the interior rearview mirror assembly further includes at least one light assembly for displaying the indicia through said window so that it is visible to an occupant of the vehicle.
    Type: Application
    Filed: February 9, 2009
    Publication date: June 4, 2009
    Applicant: Donnelly Corporation
    Inventors: Timothy G. Skiver, Joseph P. McCaw, John T. Uken, Jonathan E. DeLine, Niall R. Lynam