Illuminating Or Display Apparatus Patents (Class 385/901)
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Patent number: 8248560Abstract: Improved apparatus and method for collecting and directing light from a source via a light guide and modulated display assembly in an efficient manner through the design and use of prismatic optical structures, diffusers and/or light redirectors.Type: GrantFiled: October 24, 2008Date of Patent: August 21, 2012Assignee: Pixtronix, Inc.Inventors: Je Hong Kim, Jignesh Gandhi
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Patent number: 8189973Abstract: Embodiments of optical collimators are disclosed. For example, one disclosed embodiment comprises an optical waveguide having a first end, a second end opposing the first end, a viewing surface extending at least partially between the first end and the second end, and a back surface opposing the viewing surface. The viewing surface comprises a first critical angle of internal reflection, and the back surface is configured to be reflective at the first critical angle of internal reflection. Further, a collimating end reflector comprising a faceted lens structure having a plurality of facets is disposed at the second end of the optical waveguide.Type: GrantFiled: May 31, 2011Date of Patent: May 29, 2012Assignee: Microsoft CorporationInventors: Adrian Travis, Timothy Large, Neil Emerton, Steven Bathiche
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Patent number: 8186889Abstract: Disclosed is an information processing device with lighting function that realizes reduced power consumption and cost reductions. The optical connecting member 17 flexibly connects between a light guide plate 14 of a displaying part side and a light guide plate 21 of a key operating part side, thereby guiding light emitted from a white light LED 13 of a displaying part side to key operating part side.Type: GrantFiled: March 27, 2008Date of Patent: May 29, 2012Assignee: Hitachi Chemical Co., Ltd.Inventors: Hiroshi Masuda, Atsushi Takahashi, Yasushi Sugimoto, Tomoaki Shibata
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Patent number: 8177381Abstract: The present invention provides an integrated backlight illumination assembly for an LCD display comprising, a plurality of solid state light sources for providing a point light source and a plurality of light guide films having light redirecting areas provided between the plurality of solid state light sources for redirecting and spreading the point light sources to a uniform plane of light. The invention further provides at least one polymer diffusion bar covering said solid state light sources and spacer collar rings comprising an optical spacer, collar section and an anchoring feature, wherein the spacer collar rings are located around a perimeter of the diffusion bar.Type: GrantFiled: March 30, 2010Date of Patent: May 15, 2012Assignee: SKC Haas Display Films Co., Ltd.Inventors: Qi Hong, Herong Lei, Robert P. Bourdelais
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Patent number: 8155497Abstract: A method of manufacturing a fiber-based electric apparatus includes providing an elongate, flexible fiber core and layering an electric device on the fiber core.Type: GrantFiled: June 6, 2011Date of Patent: April 10, 2012Assignee: The Regents of The University of MichiganInventors: Max Shtein, Kevin P. Pipe
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Patent number: 8144271Abstract: High-resolution, scalable multi-touch sensing display systems and processes based on frustrated total internal reflection employ an optical waveguide that receives light, such as infrared light, that undergoes total internal reflection and an imaging sensor that detects light that escapes the optical waveguide caused by frustration of the total internal reflection due to contact by a user. The optical waveguide when fitted with a compliant surface overlay provides superior sensing performance, as well as other benefits and features. The systems and processes described provide true multi-touch (multi-input) and high-spatial and temporal resolution capability due to the continuous imaging of the frustrated total internal reflection that escapes the entire optical waveguide. Among other features and benefits, the systems and processes are scalable to large installations.Type: GrantFiled: August 4, 2008Date of Patent: March 27, 2012Assignee: Perceptive Pixel Inc.Inventor: Jefferson Y. Han
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Patent number: 8113661Abstract: A projection-type display apparatus includes an optical engine that forms an image with a laser beam from a laser light source; and an optical fiber that connects the laser light source and the optical engine. The optical engine includes a rod integrator that equalizes an optical-intensity distribution of the light beam output from the laser light source, and a rod fiber-fastening unit that fastens the rod integrator and the optical fiber to face each other such that a gap between an input facet of the rod integrator and an output facet of the optical fiber is large relatively to a wavelength of the light beam propagating through the optical fiber.Type: GrantFiled: June 19, 2009Date of Patent: February 14, 2012Assignee: Mitsubishi Electric CorporationInventor: Shinji Yagyu
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Patent number: 8111969Abstract: A light guide member capable of guiding light received from at least a first light source and second light source, wherein the first light source is spaced a distance D3 from the second light source. The light guide member may include a first side including a plurality of first grooves extending along a first direction and a plurality of second grooves extending along the first direction, wherein the first grooves may have a first pitch and the second grooves have a second pitch, the first pitch being different from the second pitch.Type: GrantFiled: April 7, 2010Date of Patent: February 7, 2012Assignee: Samsung Mobile Display Co., Ltd.Inventors: Dong Ho Lee, Won Ki Cho, Min Ho Lee
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Patent number: 8107780Abstract: The present invention is directed to a display which presents an image along a line of sight of an observer, such that the image is overlaid on a real world scene has a first waveguide and an image source device to inject the image into the first waveguide. The first waveguide has a first grating to direct the image internally and to output the image from the first waveguide. A second waveguide has a coupling grating to receive the image from the first waveguide and to direct the image along the second waveguide. The second waveguide has an exit grating to diffract the received image out of the second waveguide towards the observer. The exit grating diffracts the image out of the second waveguide off axis to a normal axis of the second waveguide.Type: GrantFiled: November 11, 2008Date of Patent: January 31, 2012Assignee: BAE Systems PLCInventor: Michael David Simmonds
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Patent number: 8107023Abstract: A projection display which includes first and second waveguide elements, wherein the first waveguide element has a two input regions for injecting image bearing light into the first waveguide element. In this manner, the total field of view of the image to be displayed at the second waveguide element is divided into two sub-images prior to injection of one sub-image into one input region and the other sub-image into the other input region of the first waveguide element. This results in a smaller first waveguide element, thereby reducing obscuration of an observers view of a forward scene over which to the image to be displayed is overlaid.Type: GrantFiled: November 11, 2008Date of Patent: January 31, 2012Assignee: BAE Systems PLCInventors: Michael D Simmonds, Louahab Noui
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Patent number: 8094981Abstract: A system of digitally controlling light output by producing separate control signals for different colors of light. The light is contained in an optical waveguide, either prior to shaping or after shaping. Each of the control signals is coupled to a digitally controlled device which controls the shape of the light output. The digital controlling device can be digital mirror devices, for example.Type: GrantFiled: April 6, 2010Date of Patent: January 10, 2012Assignee: Production Resource Group, L.C.CInventor: Jeremiah J Harris
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Patent number: 8094259Abstract: Provided is a liquid crystal display (LCD) without a color filter, the LCD including: a liquid crystal panel comprising front and rear glass substrates and a plurality of red, green, and blue liquid crystal subpixels disposed between the front and rear glass substrates corresponding to red, green, and blue lights, respectively; a backlight unit disposed in rear of the liquid crystal panel and comprising a plurality of three-color light supply units supplying the red, green, and blue lights, respectively, and separated from one another so that the plurality of three-color light supply units are compartmentalized; and a lenticular lens array disposed between the liquid crystal panel and the backlight unit, inducing the red, green, and blue lights irradiated by the three-color light supply units into the red, green, and blue liquid crystal subpixels included in the liquid crystal panel and comprising a plurality of lenticular lens groups comprising a plurality of lenticular lenses, wherein the plurality of lentiType: GrantFiled: March 19, 2009Date of Patent: January 10, 2012Assignee: Industry-Academic Cooperation Foundation, Yeungnam UniversityInventor: Jin-Hyuk Kwon
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Patent number: 8092066Abstract: A surface light source device improves the quality of illumination without producing dark lines between neighboring light guide plates even when a plurality of light guide plates are used in combination. This surface light source device is formed by combining a plurality of LED/light guide plate units, and light guide plate (4) has: light emitting area (8) of a square shape from a plan view; extended area (10) which is positioned extending outward from a pair of neighboring sides (8a) and (8b) in four sides (8a) to (8d) defining the outer rim of this light emitting area (8); and incidence surface area (11) on which light from LED (6) is incident. Each light guide plate (4) has a symmetrical shape with respect to one of the diagonal lines of light emitting area (8), and is combined by making its orientation uniform in the same direction.Type: GrantFiled: November 17, 2009Date of Patent: January 10, 2012Assignee: Enplas CorporationInventor: Yasutaka Higuchi
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Patent number: 8035771Abstract: A stereoscopic 3D liquid crystal display apparatus includes a liquid crystal display panel, a backlight positioned to provide light to the liquid crystal display panel, and a double sided prism film disposed between the liquid crystal display panel and the backlight. The backlight includes a light guide having a first side and a second side opposite the first side, and having a first surface extending between the first and second sides and a second surface opposite the first surface. The first surface substantially re-directs light and the second surface substantially transmits light. A plurality of first light sources is arranged along the first side of the light guide for transmitting light into the light guide from the first side. A plurality of second light sources is arranged along the second side of the light guide for transmitting light into the light guide from the second side. The second surface includes a regular array of linear prism or lenticular features.Type: GrantFiled: October 2, 2007Date of Patent: October 11, 2011Assignee: 3M Innovative Properties CompanyInventors: Robert L. Brott, John C. Schultz, John C. Nelson
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Patent number: 8007157Abstract: An exemplary light pipe includes a main pipe and branch pipes. The main pipe includes a light inputting segment, an end portion, and a light outputting segment between the light inputting segment and the end portion. The light inputting segment includes connecting openings defined therein. A distance between each connecting opening and the end portion of the main pipe is different from a distance between each other connecting opening and the end portion of the main pipe. The branch pipes connect with the light inputting segment at the respective connecting openings.Type: GrantFiled: August 17, 2009Date of Patent: August 30, 2011Assignee: Hon Hai Precision Industry Co., Ltd.Inventor: I-Thun Lin
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Patent number: 8003379Abstract: A bioreactor and bioreactor system are suitable for the growth of materials from algae. More specifically, the system preferred embodiments use concentrated sunlight in a solo- or co-generation system to produce algae and products therefrom as well as solar thermal energy.Type: GrantFiled: August 1, 2007Date of Patent: August 23, 2011Assignee: Brightsource Energy, Inc.Inventors: Arnold J. Goldman, Michael Kagan, Yuri Kokotov
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Patent number: 7980741Abstract: The invention relates to a light-conductor structure (13) for an automobile lighting device (11), with a coupling section (17) to couple light into the light-conductor structure, a curved reflecting surface (25) to reflect light beams (59) of the light coupled into the light-conductor structure via the coupling section, and at least one decoupling section (30, 45, 51) to decouple the light from the light-conductor structure (13). In order to achieve a light-conductor structure (13) in which fewer limitations to the determination of its geometric shape exist, or whose appearance may be more freely configured, it is proposed that the reflecting surface (25) of the light-conductor structure (13) is curved such that light reflected from the reflecting surface (25) strikes directly with no additional reflection either again onto the reflecting surface (25) or passes into the minimum of one decoupling section (30, 45, 51).Type: GrantFiled: March 19, 2009Date of Patent: July 19, 2011Assignee: Automotive Lighting Reutlingen GmbHInventor: Hubert Zwick
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Patent number: 7978942Abstract: A system and method for compensating for non-uniform illumination from a light guide for a display in an electronics device is provided. The system comprises: a memory device storing a data representing a first compensation pattern for generation on the display to block light from a first portion of the light guide relative to light from a second portion of the light guide; a first module to incorporate the stored representation into an image to be displayed on the display; and a second module to generate the image with the stored representation for display on the display. In the system, when the first module generates the first compensation pattern on the display, the first compensation pattern aligns with the first and second portions to reduce an intensity of light from a light source passing through the first compensation pattern from the first portion relative to an intensity of light passing through the first compensation pattern from the second portion from the light source.Type: GrantFiled: December 9, 2009Date of Patent: July 12, 2011Assignee: Research in Motion LimitedInventors: James Robinson, Marc Drader, Michael Purdy
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Patent number: 7976208Abstract: A light guide with input and output faces 2, 3a is polar-symmetric about the first face 2 and has optical properties such that the angle at which a ray is injected into the first face determines the position at which it leaves the second face 3a, or, if operated in the reverse direction, the position at which the ray enters the second face determines the angle at which the ray leaves the second face. The light guide includes a tapered transparent sheet 3, light from the first face entering at the thick end of this sheet, and the second face forming one face of the tapered sheet. An input/output slab 4 adjoins the tapered sheet 3 for fan-out of light from the first face 2 to the tapered sheet, and a transition region 8 is located between flat and tapered sheets. The polar symmetry means that light rays always travel in line with the taper direction, which suppresses banding.Type: GrantFiled: February 6, 2006Date of Patent: July 12, 2011Assignee: Microsoft CorporationInventor: Adrian R. L. Travis
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Patent number: 7970246Abstract: Embodiments of optical collimators are disclosed. For example, one disclosed embodiment comprises an optical waveguide having a first end, a second end opposing the first end, a viewing surface extending at least partially between the first end and the second end, and a back surface opposing the viewing surface. The viewing surface comprises a first critical angle of internal reflection, and the back surface is configured to be reflective at the first critical angle of internal reflection. Further, a collimating end reflector comprising a faceted lens structure having a plurality of facets is disposed at the second end of the optical waveguide.Type: GrantFiled: September 15, 2010Date of Patent: June 28, 2011Assignee: Microsoft CorporationInventors: Adrian Travis, Timothy Large, Neil Emerton, Steven Bathiche
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Patent number: 7970242Abstract: A fiber-based electric apparatus includes an elongate, flexible fiber core. The apparatus also includes an electric device layered on the fiber core.Type: GrantFiled: October 17, 2008Date of Patent: June 28, 2011Assignee: The Regents Of The University Of MichiganInventors: Max Shtein, Kevin P. Pipe
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Patent number: 7885498Abstract: A sample slide, launch system, and method for microscopy having two optical fibers positioned proximate a sample slide with optical fiber mounting elements to deliver EMR to a surface of the sample slide at a critical angle for total internal reflection microscopy. In one exemplary embodiment, the EMR from the first optical fiber and the EMR from the second optical fiber may have different polarization states and/or wavelengths.Type: GrantFiled: May 3, 2010Date of Patent: February 8, 2011Assignee: University of Vermont and State Agricultural CollegeInventors: Guy G. Kennedy, David M. Warshaw
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Patent number: 7873256Abstract: A backlight includes a lightguide, a light source disposed with respect to the lightguide to introduce light into the lightguide and a turning film. Optical structures are formed in one of an output surface and a back surface of the lightguide. The optical structures are arranged to extract light from the lightguide. A back reflector is disposed adjacent the back surface. The optical structures are formed to include a varying pattern arranged to mask non-uniformities in the output of the lightguide.Type: GrantFiled: September 14, 2005Date of Patent: January 18, 2011Assignee: 3M Innovative Properties CompanyInventors: Mark E. Gardiner, Sanford Cobb, Jr., Kenneth A. Epstein, Wade D. Kretman
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Patent number: 7869675Abstract: A light emitting device, in which an encapsulation resin is disposed at a space confined between an optical member and a mounting substrate. This encapsulation resin is possibly made free from a void-generation therein. In this light emitting device, the optical member can be precisely positioned. An electrode disposed outside a color conversion member is possibly free from an improper solder connection. A ring gate is formed on the top surface of the mounting substrate outside of the optical member, and acts to position the color conversion member. The ring gate acts to prevent an overflowing liquid encapsulation resin from flowing to the electrode provided. The ring gate is provided with a plurality of centering projections which are spaced circumferentially along its inner circumference to position the color conversion member.Type: GrantFiled: August 28, 2008Date of Patent: January 11, 2011Assignee: Panasonic Electric Works Co., Ltd.Inventor: Youji Urano
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Patent number: 7848605Abstract: An optical probe for non-invasively measuring an analyte property in a biological sample of a subject, comprises a plurality of illumination fibers that deliver source light from an optical probe input to a sample interface, a plurality of collection fibers that deliver light returned from the sample interface to an optical probe output, and wherein the illumination and collection fibers are oriented substantially perpendicular to the sample interface and the illumination and collection fibers are stacked in a plurality of linear rows to provide a stack of fibers arranged in a rectangular pattern. The optical probe is amenable to manufacturing on a scale consistent with a commercial product. Methods of making such probes are described.Type: GrantFiled: August 4, 2008Date of Patent: December 7, 2010Assignee: TruTouch Technologies, Inc.Inventors: Trent Ridder, Ben ver Steeg, Mike Mills
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Patent number: 7832878Abstract: The present invention generally relates to video and/or television projection systems, and more particularly, to LED based light source systems utilizing generally non-rotationally symmetric, preferably oblong or rectangular, non-imaging collection optics for providing improved projection systems relative to arc lamp and other LED based light source systems. The non-rotationally symmetric non-imaging collection optics are configured to operate with LEDs to provide preferred, generally, uniform light distributions whose étendues match those of downstream applications such as those encountered in projection systems. Also provided are various arrangements for coupling LED output to the entrance aperture of collection optics and for coupling the outputs from a plurality of collection optic outputs to form single beams of illumination of preferred patterns, intensities, and color.Type: GrantFiled: January 19, 2007Date of Patent: November 16, 2010Assignee: Innovations In Optics, Inc.Inventors: Thomas J. Brukilacchio, Charles A. Demilo
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Patent number: 7826703Abstract: Provided is a planar lighting device having a thin shape and capable of emitting uniform illumination light with less brightness unevenness. The planar lighting device includes a first and a second light sources arranged at a given distance apart from each other and a light guide plate arranged between the first and second light sources. The light guide plate includes a light exit plane, a first light entrance plane facing the first light source and containing one side of the light exit plane, and a second light entrance plane facing the second light source and containing the opposite side to the one side, and has a shape growing thicker from the first and second light entrance planes toward the center. The light guide plate contains scattering particles for scattering light entering through the first and second light entrance planes and propagating inside by a ratio satisfying 1.1??·Np·LG·KC?8.2.Type: GrantFiled: August 17, 2006Date of Patent: November 2, 2010Assignee: FUJIFILM CorporationInventor: Osamu Iwasaki
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Patent number: 7809221Abstract: An optical based input touch display device with high resolution shadow detection using the linear splitting of waveguides among transmit and receive lenses and grey-scale calculations for shadow edge and center detection is disclosed. The apparatus includes a light source and a transmit waveguide optically coupled to the light source. The transmit waveguide includes a plurality of transmit waveguide grooves coupled to a plurality of groups of shared transmit lenses respectively. The plurality of groups of transit lenses, which are configured to generate a plurality of collimated light beams from the light source. A receive waveguide is also provided having a plurality of receive waveguide grooves coupled to a plurality of groups of shared receive lenses. The plurality of groups of receive lenses are configured to receive the plurality of collimated light beams. A photodiode array including a plurality of photodiodes are optically coupled to the plurality of receive waveguide grooves respectively.Type: GrantFiled: May 2, 2007Date of Patent: October 5, 2010Assignee: Poa Sana Liquidating TrustInventor: Peter Deane
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Patent number: 7798692Abstract: Illumination devices include a light source including a substantially planar light-emitting surface and an optical rod or optical taper disposed proximate to the substantially planar light-emitting surface to optically couple the optical rod and the substantially planar light-emitting surface.Type: GrantFiled: December 30, 2005Date of Patent: September 21, 2010Assignee: Optim, Inc.Inventors: Robert J. Krupa, Thomas V. Root
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Patent number: 7796209Abstract: A backlight (2; illumination device) includes multiple light guide units (11) each including: a light source (5); and a light guide plate (7) for diffusing, for surface emission, light from the light source (5). Each light guide plate (7, 7 . . . ) includes: a light-emitting section (7b) having a light-emitting surface (7a); and a light guide section (7c) for guiding, to the light-emitting section, light from the light source (5), a light-emitting section (7b) of one of any adjacent two of the light guide plates (7) being provided above a light guide section (7c) of the other light guide plate (7).Type: GrantFiled: July 2, 2008Date of Patent: September 14, 2010Assignee: Sharp Kabushiki KaishaInventors: Yuhsaku Ajichi, Takeshi Masuda
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Patent number: 7794093Abstract: A projection display apparatus includes a light source, a light intensity equalizing element, a reflective light valve, a relay optical system, and a projecting optical system; the light intensity equalizing element being an optical device in which a cross-sectional shape in a direction orthogonal to a central axis of the light has four corners; the cross-sectional shape of the light intensity equalizing element being determined in accordance with a rectangular ideal illumination area determined so as to include the image forming area on the reflective light valve, an illumination area on the reflective light valve when a reference light intensity equalizing element is assumed to be used, the reference light intensity equalizing element being rectangular in a cross-sectional shape in a direction orthogonal to the central light ray, and the cross-sectional shape of the reference light intensity equalizing element.Type: GrantFiled: July 16, 2007Date of Patent: September 14, 2010Assignee: Mitsubishi Electric CorporationInventors: Kuniko Kojima, Tomohiro Sasagawa
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Patent number: 7778508Abstract: Image display optical systems are disclosed that extend the angle of view longitudinally and transversely while saving space. The image display optical system includes a prism-shaped substrate transparent to an image-carrying light flux to be projected to a viewing eye, an introduction unit that guides the image-carrying light flux to a propagation path through which the image-carrying light flux propagates in a direction in which the image-carrying light flux from the outside enables internal reflection at least at three surfaces including at least one side of the substrate, and an output unit that guides the image-carrying light flux propagating through the substrate from the substrate to the viewing eye. By internally reflecting the image-carrying light flux at all the sides, i.e.Type: GrantFiled: August 29, 2005Date of Patent: August 17, 2010Assignee: Nikon CorporationInventor: Yoshikazu Hirayama
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Patent number: 7756385Abstract: An antisqueezed light generator system is built with only the components for optical communications with long-term reliability. A cw-LD light is made pulses by an intensity modulator and amplified by an optical amplifier. The amplified optical pulses are made short by high-order soliton pulse compression effect at a first optical fiber and peak power is increased. A fluctuation is expanded in a phase direction through propagation in a second optical fiber. Because an initial fluctuation is amplified by the optical amplifier, the fluctuation expanded in the phase direction is increased to the extent of the amplification and sufficient antisqueezing strength can be obtained.Type: GrantFiled: May 10, 2007Date of Patent: July 13, 2010Assignee: Hitachi, Ltd.Inventor: Tatsuya Tomaru
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Patent number: 7751679Abstract: The present invention relates to a brightness enhancement film and a backlight module having the brightness enhancement film. The brightness enhancement film includes first micro-reflectors and second micro-reflectors. The cross-section of each of the first and second micro-reflectors is a triangle having two same or different base angles and a wavy crest line. The widths of the first and second micro-reflectors vary along with the valleys and peaks to broaden or to narrow with respect to two sides thereof such that the neighboring lines between the first and second micro-reflectors are wavy. The backlight module is coupled with the brightness enhancement film. This enhances brightness, illuminates evenly, and avoids a moire effect.Type: GrantFiled: December 12, 2008Date of Patent: July 6, 2010Assignees: Univacco Technology Inc., National Applied Research LaboratoriesInventors: Chi-Feng Lin, Yi-Fan Chen
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Patent number: 7751667Abstract: A microfabricated light collimating screen is provided. A microfabricated screen, in one form, is made from a photopolymer such as SU-8 material. It is able to collimate light in two dimensions and for improved degrees of collimation. It may also be directly patterned onto image sensors or light sources in order to achieve direct collimation. The fabrication method is large-area compatible and inexpensive. The proposed screens may be useful for position detection of objects, such as in the paper mover, in printers and copy machines.Type: GrantFiled: December 21, 2005Date of Patent: July 6, 2010Assignee: Xerox CorporationInventors: Jurgen H. Daniel, David K. Biegelsen
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Patent number: 7748882Abstract: A thin-profile, optically efficient lighting device for use with, among other things, flat information displays, includes a combination of three optically coupled light propagating structures, fabricated of electromagnetic flux transmitting materials. The first structure may be a generally elongated optical pipe adapted to receive light from at least one light source such as a light emitting diode. Radiation from additional sources is coupled into the first structure by a second structure which injects the radiation thereinto. Light injected into the first structure is directed into the third structure where it is redirected so that it propagates out of the third structure uniformly and efficiently and in a direction that is substantially perpendicular to the surface of the third structure. A device can include multiple bodies of any or all three structures.Type: GrantFiled: June 14, 2007Date of Patent: July 6, 2010Inventor: Ben-Zion Inditsky
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Patent number: 7751670Abstract: A laser display device, which eliminates speckles generated in the transmission of laser beams and uniformly mixes laser beams of various colors, and an optical coupler therefor. The laser display device includes light sources emitting laser beams; an image display unit displaying an image by the laser beams; and a speckle elimination unit located on a path of the laser beams, and including at least one panel having an uneven part and disposed on an optical axis of the light sources.Type: GrantFiled: February 28, 2007Date of Patent: July 6, 2010Assignee: LG Electronics Inc.Inventor: Sung Chul Shin
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Patent number: 7751671Abstract: A mounting assembly for mounting an optical member to a panel can comprise a mounting portion configured to contact a top surface of the panel when mounted to the panel and a receiving portion to receive optical hardware such as an optical detector so that a field of view of the optical detector substantially encompasses the top surface of the panel when the mounting assembly is mounted thereto. The assembly can include an attachment member to attach the mounting portion to the panel and to limit axial movement along or about an axis parallel to an edge of the panel when the mounting assembly is mounted to the panel. The body of the mounting portion may also be shaped to limit axial movement, such as by including a lip in contact with edges of the panel and/or a base portion that contacts the top surface of the panel when mounted.Type: GrantFiled: December 21, 2009Date of Patent: July 6, 2010Assignee: Next Holdings LimitedInventors: John David Newton, Simon James Bridger
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Patent number: 7738754Abstract: An optical component having an incident surface and a light exiting surface wherein where a collimated light is incident on the incident surface, the light intensity of the outgoing light from the light exiting surface is anisotropic along an azimuth angle of 30° to the normal and a ratio of the maximum intensity value and the minimum intensity value is 1.2 or more and a plurality of irregular lens rows are aligned on one of the incident surface and the light exiting surface to form an angle within a range of ?30° to +30° on the incident surface or light exiting surface.Type: GrantFiled: July 16, 2004Date of Patent: June 15, 2010Assignees: Sakari Co., Ltd., LTec Trading Co., Ltd.Inventors: Seiichi Ishihara, Takashi Okada
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Patent number: 7729589Abstract: A mold frame contains a lamp shade and a light source, a light guide being erected at the open end and secured in place on one side of the lamp shade; streams of light from the light source entering into from one side of the light guide plate to project in the direction as expected; and a mask device being disposed on the mold frame at where close to the joint edge of the light guide plate so to weaken the reflection rate of the light that leaves the light guide plate, to reduce the interference of the light in the light guide plate, and to diminish the phenomenon of ripples.Type: GrantFiled: August 2, 2006Date of Patent: June 1, 2010Assignee: K-Bridge Electronics Co., Ltd.Inventors: Fang-I Chou, Chia-Chun Hsu
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Patent number: 7726819Abstract: A structure for protecting a rod integrator that is used for a projection display apparatus is provided. The structure has: a protecting tube for the rod integrator, the protecting tube accommodating the rod integrator therein, wherein the protecting tube has openings which are defined at positions that face a light incident surface and a light exiting surface of the rod integrator, respectively; and a light shield plate that is provided between the opening and a light source for emitting light to the rod integrator, the opening facing the light incident surface of the rod integrator, wherein the light shield plate has an opening for allowing light to pass therethrough so that the light is incident on the rod integrator.Type: GrantFiled: October 13, 2006Date of Patent: June 1, 2010Assignee: NEC ViewTechnology, Ltd.Inventor: Eisaku Shouji
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Patent number: 7729577Abstract: A waveguide version of a Kohler integrator is disclosed, utilizing geodesic lenses with a surface that can be mapped to a gradient-index Luneburg lens or to a nonfull-aperture Luneburg lens in such a way that the light paths in the gradient index lenses map into the geodesics of the surface, with the outer region of the gradient index lenses mapped into a flat surface. Arrays of these can be applied to lines of LEDs, as in CHMSLs, to mix light in intensity and in illumination as well as to avoid the deleterious effects of binning and burnout, or in multicolor arrays, to ensure complete chromatic mixing.Type: GrantFiled: June 4, 2007Date of Patent: June 1, 2010Assignee: Light Prescriptions Innovators, LLCInventors: Juan Carlos Miñano, Pablo Benitez, Dejan Grabovickic, José Blen, Maikel Hernandez, Rubén Mohedano, Oliver Dross
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Patent number: 7719636Abstract: An embodiment of this document relates to an optical sheet and a liquid crystal display using the same. An optical sheet in accordance with an aspect of this document may comprise a base film, and a plurality of projections including at least one of lenticular lens or micro lens, positioned on one surface of the base film. The projection may comprise a first resin and a plurality of first beads, and about 1 to 10 parts by weight of the first bead based on 100 parts by weight of the first resin.Type: GrantFiled: March 14, 2008Date of Patent: May 18, 2010Assignee: LG Electronics Inc.Inventors: Changjong Kim, Kabjin Hwang, Seoungho Lee, Cheol Yoon, Seungwook Kown, Yongsu Kim, Byeongheui Han
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Patent number: 7720347Abstract: Provided is an all-in-one type light guide plate including a plurality of prism-shaped structures that are integrally formed on the all-in-one light guide plate and which totally internally reflect light incident from a light source and emit the totally internally reflected light.Type: GrantFiled: January 25, 2007Date of Patent: May 18, 2010Assignee: Samsung Electronics Co., Ltd.Inventors: Hong-seok Lee, Eung-yeoul Yoon
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Patent number: 7717572Abstract: An adjusting device for positioning an integration rod within an optical engine module is provided. The optical engine module includes a casing having four sidewalls defining an optical path. The integration rod is disposed in the optical path. Each sidewall has a screw hole. The adjusting device includes two adjusting screws extending through the screw holes in two adjacent sidewalls of the casing in order to abut against the integration rod, thereby adjusting the position of the integration rod in the optical path and two positioning screws extending through the screw holes in remaining two adjacent sidewalls of the casing to abut against the integration rod for immobilizing the integration rod within the casing.Type: GrantFiled: October 12, 2006Date of Patent: May 18, 2010Assignee: Coretronic CorporationInventors: Wei-Po Hsu, Tai-Li Chang, Chin-Ku Liu, Chia-Lun Liu
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Patent number: 7711225Abstract: A sample slide, launch system, and method for microscopy having a fiber insertion portal terminating within the sample slide and having a fiber insertion axis such that when an optical fiber is inserted within the fiber insertion portal the optical fiber is positioned so to deliver an EMR to a surface of the sample slide at a desired angle.Type: GrantFiled: June 8, 2009Date of Patent: May 4, 2010Assignee: University of Vermont and State Agricultural CollegeInventors: Guy G. Kennedy, David M. Warshaw
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Patent number: 7702192Abstract: Systems and methods for driving a display of MEMS devices are disclosed. In one embodiment, a display device comprises an array of MEMS display elements, at least one test deflecting element, and a deflection sensing circuit connected to the test deflecting element, the deflection sensing circuit being configured to monitor deflection of the test deflecting element without actuating the test deflection element and to provide a signal indicative of one or more parameters affecting operation of the array of MEMS display elements based on the deflection.Type: GrantFiled: June 21, 2006Date of Patent: April 20, 2010Assignee: QUALCOMM MEMS Technologies, Inc.Inventor: Jeffrey B. Sampsell
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Patent number: 7697813Abstract: A light guide member capable of guiding light received from at least a first light source and second light source, wherein the first light source is spaced a distance D3 from the second light source. The light guide member may include a first side including a plurality of first grooves extending along a first direction and a plurality of second grooves extending along the first direction, wherein the first grooves may have a first pitch and the second grooves have a second pitch, the first pitch being different from the second pitch.Type: GrantFiled: March 23, 2007Date of Patent: April 13, 2010Assignee: Samsung Mobile Display Co., Ltd.Inventors: Dong Ho Lee, Won Ki Cho, Min Ho Lee
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Patent number: RE41645Abstract: A light switch is disclosed to turn on or off the light signal in a light channel by means of the response of piezoelectric material to the electric field of light in the light channel. The LIGHT TRIGGERED LIGHT SWITCH is a light switch that is actuated by light of sufficient power. Light of different frequencies may travel in a light channel together without hindering each other, as long as the channel is the right size for both frequencies of light. The light that actuates the switch may be a different frequency than the light signal that is switched on or off. Fiber optic communication channels are among the channels that these switches may be used for.Type: GrantFiled: July 3, 2008Date of Patent: September 7, 2010Inventor: Gary Neal Poovey
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Patent number: RE41995Abstract: There is provided a very thin light guide plate for a surface light source device and a method of manufacturing it without the use of high-precision molding machine. A surface light source device using this light guide plate generates outgoing light having high uniformity. According to the manufacturing method, a light guide plate free from a weld line or warp can be manufactured with good transferring characteristics. The light guide plate is thick on an incident surface 1 side and thin on a lower surface 4 side. At the central portion of an incident surface 1 in a longitudinal direction, a projecting portion obtained by cutting an overhang portion 7 at a position a distance D apart from the incident surface 1 is formed. The cut surface of the projecting portion is not made specular and is kept rough. In molding of the light guide plate, a molten material is supplied from the position of a gate mark 9.Type: GrantFiled: June 24, 2005Date of Patent: December 14, 2010Assignee: Enplas CorporationInventors: Tsuyoshi Ishikawa, Hiroshi Yamazaki