Patents Examined by William C. Choi
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Patent number: 7619807Abstract: A Micromirror Array Lens comprises a plurality of micromirrors arranged on a flat or a curved surface to reflect incident light. Each micromirror in the Micromirror Array Lens is configured to have at least one motion. The Micromirror Array Lens forms at least one optical surface profile reproducing free surfaces by using the motions of the micromirrors. The free surface can be any two or three-dimensional continuous or discrete reflective surface. The Micromirror Array Lens having the corresponding optical surface profile provides optical focusing properties substantially identical to those of the free surface. The Micromirror Array Lens can forms various optical elements such as a variable focal length lens, a fixed focal length lens, an array of optical switches, a beam steerer, a zone plate, a shutter, an iris, a multiple focal length lens, other multi-function optical elements, and so on.Type: GrantFiled: October 31, 2007Date of Patent: November 17, 2009Assignees: Angstrom, Inc., Stereo Display, Inc.Inventors: Sang Hyune Baek, Jin Young Sohn, Gyoung Il Cho, Cheong Soo Seo
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Patent number: 7616376Abstract: A method of wavelength tuning a composite material. The method includes the steps of: producing an ordered array of first constituents having a first refractive index embedded within a cross-linked metallopolymer network having a second refractive index different than the first refractive index, the ordered array of first constituents having a lattice spacing giving rise to Bragg diffraction when the composite material is illuminated; and switching the electronic configuration of the cross-linked metallopolymer network so that the cross-linked polymer network changes dimensions and modulates the lattice spacing of the ordered array of first constituents, which shifts the Bragg diffraction wavelength to a pre-selected wavelength.Type: GrantFiled: March 11, 2008Date of Patent: November 10, 2009Assignee: The Governing Council of the University of TorontoInventors: Andre Arsenault, Ian Manners, Hernan Miguez, Geoffrey Alan Ozin
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Patent number: 7616375Abstract: A display device of active matrix driving type has a plurality of pixel regions arranged in a plane, each of the pixel regions including a selection switching element that controllably switches a supply of a signal to the each of the pixel regions, a pressure sensitive switching element that controllably switches a supply of a signal to the each of the pixel regions in response to an input of an external pressure, and a retention capacitance that retains a signal supplied to the each of the pixel regions, wherein the pressure sensitive switching element includes a semiconductor layer having a channel region, and a piezoelectric film laminated on the channel region, and the retention capacitance includes a pair of capacitance electrodes and a ferroelectric film sandwiched between the pair of capacitance electrodes.Type: GrantFiled: January 21, 2008Date of Patent: November 10, 2009Assignee: Seiko Epson CorporationInventors: Eiju Hirai, Masayoshi Todorokihara, Yuko Komatsu
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Patent number: 7612932Abstract: A microelectromechanical (MEMS) device includes a first reflective layer, a movable element, and an actuation electrode. The movable element is over the first reflective layer. The movable element includes a deformable layer and a reflective element. The actuation electrode is between the deformable layer and the reflective element.Type: GrantFiled: July 2, 2007Date of Patent: November 3, 2009Assignee: IDC, LLCInventors: Clarence Chui, Denis Endisch, Lior Kogut, Ming-Hau Tung, Yeh-Jiun Tung, Chih-Wei Chiang
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Patent number: 7612929Abstract: A mirror includes an electro-optic mirror subassembly, and a thin-profiled bezel attached around a perimeter of the electrochromic mirror subassembly. The electro-optic mirror subassembly is supported on a carrier by an adheringly bonded heater and foam tape in a laminar arrangement. The bezel may be bonded to an edge of the front surface of the front element of the electro-optic mirror subassembly, and/or may be bonded and/or interlockingly mechanically attached to an edge of the carrier. Alternatively, the bezel can be a strip of paint or thin coating material. The bezel can be molded in place, or can be pre-molded and elastically stretched to permit assembly. In one form, the bezel includes a laterally-extending fin that prevents seeing past the bezel into the inside of a mirror housing. In at least one embodiment, the assembly has no bezel or only a bezel on one edge.Type: GrantFiled: October 30, 2007Date of Patent: November 3, 2009Assignee: Gentex CorporationInventors: William L. Tonar, Frederick T. Bauer, John W. Arnold, David J. Cammenga, John W. Carter, Bradley L. Busscher, Jeremy A. Fogg
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Patent number: 7609435Abstract: A display medium including a light-modulating layer containing charged mobile particles assuming a color at a lightness corresponding to the dispersion state of the charged mobile particles and first particles with lower mobility than the charged mobile particles. The first particles assume a color at a lightness that is outside a lightness range that the charged mobile particles can exhibit.Type: GrantFiled: June 7, 2006Date of Patent: October 27, 2009Assignee: Fuji Xerox Co., Ltd.Inventors: Hiroaki Moriyama, Yasuo Yamamoto, Jun Kawahara, Masaaki Abe
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Patent number: 7605987Abstract: The invention relates to a zoom optical system that, albeit having high zoom capabilities, has its total length reduced in consideration of size reductions upon received at a lens mount, and an imaging apparatus using the same. The zoom optical system comprises, in order from its object side, a positive first lens group, a negative second lens group, a positive third lens group and a positive fourth lens group. Upon zooming from the wide-angle end to the telephoto end, the second lens group moves in such a way as to lie more on the imaging plane side at the telephoto end than at the wide-angle end, and the third lens group moves. A lens component L21 having negative refracting power is located in, and nearest to the object side of, the second lens group, and satisfies both condition (1) with respect to its shaping factor and condition (2) with respect to its focal length.Type: GrantFiled: November 16, 2007Date of Patent: October 20, 2009Assignee: Olympus Imaging Corp.Inventor: Kazuya Nishimura
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Patent number: 7604353Abstract: It is made possible to improve the variations in the “generated force (load)—deflection characteristics”. A deformable mirror device includes: a substrate; a plurality of electrodes provided on the substrate; a spacer disposed on the substrate; a support member disposed above the spacer and having an opening passing through from a first face of the support member facing to the substrate to a second face of the support member facing opposite from the first face; a first insulation film provided on the first face of the support member; a second insulation film provided on the second face of the support member; and a deformable electrode film disposed so as to be opposed to the electrodes at a spacing, formed so as to cover the opening, and supported by the support member with sandwiching the first insulation film.Type: GrantFiled: December 18, 2007Date of Patent: October 20, 2009Assignees: Kabushiki Kaisha Toshiba, Kabushiki Kaisha TopconInventors: Akihiro Koga, Masayuki Sekimura, Kei Masunishi, Akio Kobayashi, Hiroyuki Kawashima, Hirotake Maruyama
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Patent number: 7605962Abstract: A clamping spring (70) formed of a sheet of resilient material having an interconnected plurality of alternating first and second tabs disposed around the periphery thereof is disclosed. The first tabs (72) being angled upwardly and having mounting slots (73) therein. The second tabs (74) being angled downwardly. A force applied to the first tabs provides a consistent controlled clamping force at the second tabs.Type: GrantFiled: March 11, 2005Date of Patent: October 20, 2009Assignee: ThomsonInventors: Mark Alan Yoder, Scott Allen Bottler
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Patent number: 7605967Abstract: An electro-optical modulator includes a substrate, a first electrode over the substrate, a second electrode over the first electrode, the first electrode and second electrode being capable of providing an electric field between the first electrode and the second electrode, and a modulating structure between the first electrode and the second electrode, the modulating structure containing at least one liquid crystal cell capable of operating in one of a reflective mode and a transmissive mode under the control of the electrical field.Type: GrantFiled: August 3, 2006Date of Patent: October 20, 2009Assignee: Industrial Technology Research InstituteInventors: Hsing-Lung Wang, Wei-Ting Hsu, Chu-Chun Yen, Chi-Lun Ting, Wei-Hsin Hou, Chi-Chang Liao, Shie-Chang Jeng
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Patent number: 7602557Abstract: The invention relates to a variable-focus lens comprising two opposing walls (21, 22) which are orthogonal to the axis of the lens and which define a space containing an isolating liquid (31) on the first wall (22) and a conductive liquid (32) which covers the isolating liquid and which comes into contact with the second wall (21). The surface (24) of the first wall (22) has high wettability for the isolating liquid and low wettability for the conductive liquid, while the surface (23) of the second wall (21) has high wettability for the conductive liquid and low wettability for the isolating liquid.Type: GrantFiled: August 26, 2005Date of Patent: October 13, 2009Assignee: Varioptic S.A.Inventors: Bruno Berge, Jérôme Peseux
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Patent number: 7599127Abstract: Providing a zoom lens system having excellently correcting various aberrations with accomplishing to be compact, lightweight, and slim upon being retracted. The system is composed of, in order from an object, a first group having negative refractive power, and a second group having positive refractive power. Upon zooming from a wide-angle end state to a telephoto end state, a distance between the first group and the second group varies. The first group is composed of two lens elements which are, in order from the object, a negative lens having a concave surface facing an image, and a positive lens. The second group consists of three lens elements or less and includes, in order from the object, a positive lens, an aperture stop for defining an f-number, and a negative lens component including a negative lens and disposed to the image side of the aperture stop. Given conditions are satisfied.Type: GrantFiled: September 26, 2006Date of Patent: October 6, 2009Assignee: Nikon CorporationInventors: Mami Muratani, Sayako Yamamoto
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Patent number: 7595928Abstract: In an apparatus for manufacturing an electrophoretic display, the electrophoretic display includes a backside plate having a cover area and a display structure. The display structure is arranged on the backside plate and a rear surface thereof facing toward the backside plate has an area less than the cover area. The apparatus includes a main body and a pressure-supplying member. The main body includes a receiving cavity, a supporting surface and a plurality of absorption holes. The receiving cavity is configured to receive the display structure therein. The supporting surface is located at the bottom of the receiving cavity. The absorption holes are arranged at the bottom of the receiving cavity and each penetrates through the supporting surface. The absorption holes are configured to vacuum absorb the display structure on the supporting surface via vacuum absorption means.Type: GrantFiled: April 11, 2008Date of Patent: September 29, 2009Assignee: Prime View International Co., Ltd.Inventors: Ted-Hong Shinn, Hsiang-Tang Wang, Yi-Ching Wang, Wen-Shin Liu
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Patent number: 7595936Abstract: A zoom lens system, in that order from an object side to an image side, includes first to fourth lens units respectively having positive, negative, positive, and positive optical powers. The second and fourth lens units move along an optical axis during zooming. In the zoom lens system, the third lens unit includes a first lens subunit having a negative optical power, and a second lens subunit having a positive optical power, in that order from the object side to the image side. The first lens subunit has no more than a positive lens element and a negative lens element. The second lens subunit has no more than a positive lens element and a negative lens element. Accordingly, the arrangements of the third lens unit and other lens units are properly set.Type: GrantFiled: April 24, 2008Date of Patent: September 29, 2009Assignee: Canon Kabushiki KaishaInventor: Koji Hoshi
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Patent number: 7589902Abstract: A wearable display system, such as a Head Mounted Display, having a display engine producing light, preferably linearly polarized light, which defines a synthetic image that is relayed to a wire grid polarizing combiner which overlays the synthetic image onto a real image of an object of the outside world, and wherein the real image is contemporaneously viewed through the wire grid polarizing combiner by the wearer of the system. The wire grid polarizing combiner can be curved in at least one axis, and preferably two axis such that optical power is added to the wire grid polarizing combiner.Type: GrantFiled: September 19, 2007Date of Patent: September 15, 2009Assignee: Concurrent Technologies CorporationInventors: John Garoutte, David Bajorins, Chris Gnehm
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Patent number: 7589916Abstract: The present invention provides a micromirror array with iris function that comprises a plurality of micromirrors and is configured to provide an adjustable aperture having a plurality of aperture sizes by controlling motions of the micromirrors. The adjustable aperture controls the amount of incident light admitted to an image sensor by changing the aperture size. Also, the micromirrors comprised in the aperture forms a Micromirror Array Lens having variable focusing function.Type: GrantFiled: August 10, 2007Date of Patent: September 15, 2009Assignees: Angstrom, Inc., Stereo Display, Inc.Inventors: Hye Young Kim, Jin Young Sohn, Gyoung Il Cho, Cheong Soo Seo
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Patent number: 7589917Abstract: A Fresnel lens having a curved surface and a large number of Fresnel lens steps with rectangular cross sections for enhancing the aesthetics while providing a diffuser appearance. The cylindrical Fresnel lens can be uniformly divided into rectangular sections across the lens axis. The rectangular sections are alternative and are offset from the curved surface by a distance, which produces a very parallel output beam. The front face of the cylindrical Fresnel lens provides a square like pattern, which results in an aesthetic appearance with the effective usage of light and reduced production costs.Type: GrantFiled: October 25, 2007Date of Patent: September 15, 2009Assignee: Honeywell International Inc.Inventors: Anita Sure, Venkataraman Krishnasamy
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Patent number: 7589910Abstract: The zoom lens includes a first lens group G1 having a negative refracting power, an aperture stop FA, a second lens group G2 having a positive refracting power, and a third lens group G3 having a positive refracting power, which are disposed in order from an object side. In this configuration, at least the first lens group G1 and the second lens group G2 move along with changing magnification from the wide-angle end toward the telephoto end, in a manner that a spacing between the first lens group G1 and the second lens group G2 decreases gradually and a spacing between the second lens group G2 and the third lens group G3 increases gradually. Here, the second lens group G2 includes a first cemented lens C1 having at least three pieces of lenses united, and a second cemented lens C2 having at least two pieces of lenses united.Type: GrantFiled: June 29, 2007Date of Patent: September 15, 2009Assignee: Ricoh Company, Ltd.Inventor: Kazuyasu Ohashi
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Patent number: 7589909Abstract: A rear-focusing type zoom lens includes, in order from an object side, a positive first group being fixed, a negative second group moving toward an image plane along an optical axis during zooming from a wide-angle end to a telephoto end; a negative third group being fixed in an optical axis direction, and a positive fourth group moving along the optical axis direction to correct image plane variation being caused by zooming. The first group includes a first subgroup having a negative power as a whole and a second subgroup having a positive power as a whole. The first subgroup includes a negative meniscus lens having a convex surface directed toward the object side and a negative lens. The second subgroup includes a positive lens group having at least one positive lens, a negative lens, a positive lens, and another positive lens group having at least one positive lens.Type: GrantFiled: October 6, 2008Date of Patent: September 15, 2009Assignee: Fujinon CorporationInventor: Shinkichi Ikeda
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Patent number: 7589918Abstract: A single focus imaging lens comprises: a front lens group including one or two lenses and having a positive refractive power as a whole; a rear lens group including two or three lenses and having a negative refractive power as a whole; and a focusing lens, disposed between the front lens group and the rear lens group, that has a positive refractive power and moves on an optical axis for adjusting focus, wherein the following conditional expression is satisfied: 1.0<FL/f<5.0??(X) where f: focal length of the single focus imaging lens; FL: focal length of the focusing lens.Type: GrantFiled: September 24, 2007Date of Patent: September 15, 2009Assignee: Fujinon CorporationInventor: Kenichi Sato
