Patents Assigned to Reflexite Corporation
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Publication number: 20130250418Abstract: Methods for producing retroreflector tooling and retroreflective sheeting using laser writing techniques, and corresponding products thereof, are presented. In one embodiment, a seamless retroreflective sheet having a plurality of retroreflectors formed in a continuous retroreflective microstructured pattern is provided. In the methods described herein, a substrate having a photosensitive coating on a surface thereof is provided. A surface-relief microstructured pattern is produced in the photosensitive coating by selectively exposing the photosensitive coating to a beam of electromagnetic radiation. The exposed portions of the photosensitive coating are developed to form a retroreflective microstructured pattern on the surface of the substrate. The retroreflective microstructured pattern is then transferred into retroreflector tooling comprising the retroreflective microstructured pattern on a surface thereof.Type: ApplicationFiled: March 23, 2012Publication date: September 26, 2013Applicant: REFLEXITE CORPORATIONInventor: Steven SCOTT
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Publication number: 20130193597Abstract: A reflector molding apparatus includes two pressure rollers with pressure surfaces of the rollers comprising convex teeth and concave teeth in mesh. The reflection film is put on the aluminum sheet as the unmolded material. The unmolded material goes to the pressure surfaces in mesh and is molded to be a reflector. The surface of the resulting reflector is corrugated shaped because of the pressure of the rollers. The shape of the reflector changes with the pressure surface of the rollers.Type: ApplicationFiled: February 1, 2012Publication date: August 1, 2013Applicant: REFLEXITE CORPORATIONInventors: Zhu Qing Jin, James X. Jing, Chang Kuo-An, Chai Wan Min
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Publication number: 20130083407Abstract: This technology relates generally to a method of making an optical device. The method involves providing a glass carrier having a first surface, forming an optic structure in an at least partially transmissive layer, wherein the at least partially transmissive layer is adjacent the first surface of the glass carrier, and curing the at least partially transmissive layer using a thermal ramp up to a cure temperature at or within about 10° C. of an operating temperature of the optical device. This technology also relates to the resulting optical device and a system including an array of optical devices described herein and an array of photovoltaic cells configured with respect to the array of optical devices to convert light energy passing through the array of optical devices into electricity.Type: ApplicationFiled: September 27, 2012Publication date: April 4, 2013Applicant: REFLEXITE CORPORATIONInventor: Reflexite Corporation
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Patent number: 8277058Abstract: Optical structures and sheeting that include polyurea and method for forming same are proposed in accordance with aspects of the present invention. One and two-component layers can be used to form the optical structures. The optical structures can include microstructures formed from polyurea. The sheeting can include at least one of cube-corner prisms, open-faced cube-corner prisms, linear prisms, lenticular lenses, moth-eye structures, lenses, Fresnel lens arrays, lenses, and fish-eye lens arrays.Type: GrantFiled: April 8, 2011Date of Patent: October 2, 2012Assignee: Reflexite CorporationInventors: Dzu D. Luong, Patrick W. Mullen
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Patent number: 8235556Abstract: A condensing element, array, and methods thereof include a bowl-shaped outer section and a lens-shaped inner section. The outer section provides substantially total internal reflection of light entering at an input surface of the outer section. The inner section is recessed within the outer section at a distance from the entering light that is within the focal position of the inner section. The outer and inner sections are configured in a preferred embodiment so that substantially all the light exiting the condensing element is substantially parallel to the optical axis of the entering light. In an alternate embodiment, the configuration of the condensing element can be modified to selectively adjust the desired degree of collimation of the exiting light.Type: GrantFiled: October 20, 2008Date of Patent: August 7, 2012Assignee: Reflexite CorporationInventors: James F. Munro, Penny J. Munro
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Patent number: 8226262Abstract: A TIRing condensing element and methods thereof includes a first section and a second section. The first section provides substantially total internal reflection of light entering at a base of the first section. The second section tapers from a first section towards an optical axis of the element extending through the second section to output light from the first section. The first and second sections are configured so a half-power angle of the light output from the second section is less than the half-power angle of the light entering the first section.Type: GrantFiled: September 30, 2008Date of Patent: July 24, 2012Assignee: Reflexite CorporationInventors: James F. Munro, Penny J. Munro
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Publication number: 20120160300Abstract: A solar conversion apparatus and method includes two or more conversion cells and a reflector assembly. Each of the two or more solar conversion cells is responsive to a different one of at least a first band of wavelengths from solar radiation and a second band of wavelengths from the solar radiation. The reflector assembly comprises at least two integrated reflective sections. One of the at least two reflective sections is positioned to reflect and direct the first band of wavelengths towards one of the two or more solar conversion cells and another one of the at least two reflective sections is positioned to reflect and direct the second band of wavelengths towards another one of the two or more solar conversion cells. At least one of the two integrated reflective structures further comprises a Fresnel microstructure.Type: ApplicationFiled: March 31, 2010Publication date: June 28, 2012Applicant: REFLEXITE CORPORATIONInventor: James F. Munro
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Patent number: 8205995Abstract: The present invention relates to an optical device for privacy or contrast enhancement of a viewing display. Also disclosed are a system including the optical device and methods of improving privacy or contrast of a viewing display, such as a plasma display panel, a liquid crystal display panel, an inorganic light emitting diode display panel, or an organic light emitting diode display panel.Type: GrantFiled: August 7, 2008Date of Patent: June 26, 2012Assignee: Reflexite CorporationInventors: Michael F. Foley, James F. Munro
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Publication number: 20120008207Abstract: A polarizer is provided comprising a subwavelength optical microstructure wherein the microstructure is partially covered with a light-transmissive inhibiting surface for polarizing light. The inhibiting surface can include a reflective surface, such as a metalized coating. The subwavelength optical microstructure can include moth-eye structures, linear prisms, or modified structures thereof A polarizing structure is further provided comprising a plurality of moth-eye structures stacked on one another for polarizing light.Type: ApplicationFiled: September 19, 2011Publication date: January 12, 2012Applicant: Reflexite CorporationInventors: Robert B. Nilsen, Patrick W. Mullen, Michael J. Hanrahan, Edward D. Phillips
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Patent number: 8070303Abstract: Optical structures and sheeting that include polyurea and method for forming same are proposed in accordance with aspects of the present invention. One and two-component layers can be used to form the optical structures. The optical structures can include microstructures formed from polyurea. The sheeting can include at least one of cube-corner prisms, open-faced cube-corner prisms, linear prisms, lenticular lenses, moth-eye structures, lenses, Fresnel lens arrays, lenses, and fish-eye lens arrays.Type: GrantFiled: September 29, 2006Date of Patent: December 6, 2011Assignee: Reflexite CorporationInventors: Dzu D. Luong, Patrick W. Mullen
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Patent number: 8057715Abstract: The present invention relates to a method of making an optical device for contrast enhancement of a viewing display, such as a plasma display panel, a liquid crystal display panel, an inorganic light emitting diode display panel, or an organic light emitting diode display panel.Type: GrantFiled: August 28, 2008Date of Patent: November 15, 2011Assignee: Reflexite CorporationInventors: Michael F. Foley, James F. Munro
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Patent number: 8054416Abstract: A polarizer is provided comprising a subwavelength optical microstructure wherein the microstructure is partially covered with a light-transmissive inhibiting surface for polarizing light. The inhibiting surface can include a reflective surface, such as a metalized coating. The subwavelength optical microstructure can include moth-eye structures, linear prisms, or modified structures thereof. A polarizing structure is further provided comprising a plurality of moth-eye structures stacked on one another for polarizing light.Type: GrantFiled: December 4, 2003Date of Patent: November 8, 2011Assignee: Reflexite CorporationInventors: Robert B. Nilsen, Patrick W. Mullen, Michael J. Hanrahan, Edward D. Phillips
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Publication number: 20110181954Abstract: Optical structures and sheeting that include polyurea and method for forming same are proposed in accordance with aspects of the present invention. One and two-component layers can be used to form the optical structures. The optical structures can include microstructures formed from polyurea. The sheeting can include at least one of cube-corner prisms, open-faced cube-corner prisms, linear prisms, lenticular lenses, moth-eye structures, lenses, Fresnel lens arrays, lenses, and fish-eye lens arrays.Type: ApplicationFiled: April 8, 2011Publication date: July 28, 2011Applicant: REFLEXITE CORPORATIONInventors: Dzu D. LUONG, Patrick W. MULLEN
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Patent number: 7980727Abstract: A TIRing condensing array includes a plurality of condensing elements with at least one of the condensing elements having a first section and a second section. The first section provides substantially total internal reflection of light entering at a base of the first section. The second section tapers from the first section towards an optical axis extending through the first and second sections. The first and second sections are configured so a half-power angle of the light output from the second section is less than the half-power angle of the light entering the first section. At least one of the condensing elements is optically and mechanically connected to at least one other of the condensing elements at an attachment area between the condensing elements.Type: GrantFiled: October 7, 2008Date of Patent: July 19, 2011Assignees: Reflexite CorporationInventors: James F. Munro, Penny J. Munro
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Publication number: 20110080637Abstract: A waveband selective retroreflective article, comprising a body layer having a plurality of concave retroreflective elements, each said concave retroreflective element forming a cavity having open-face surfaces and an additional layer that includes particles of a wave-band selective material.Type: ApplicationFiled: June 1, 2009Publication date: April 7, 2011Applicant: REFLEXITE CORPORATIONInventor: Patrick W. Mullen
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Publication number: 20110075258Abstract: A light control film including a polymer carrier film and a coating disposed on the carrier film and including dark colored or reflective particles dispersed within a cured resin matrix, the particles being aligned either perpendicular or parallel to a major surface of the carrier film, and method for making the same.Type: ApplicationFiled: May 22, 2009Publication date: March 31, 2011Applicant: REFLEXITE CORPORATIONInventor: Patrick W. Mullen
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Patent number: 7847886Abstract: A parabolic lenticular collimating film system includes at least one film which is at least partially transmissive and one or more parabolic structures on a surface of the film.Type: GrantFiled: October 2, 2008Date of Patent: December 7, 2010Assignee: Reflexite CorporationInventor: James F. Munro
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Publication number: 20100284080Abstract: A fabric-backed retroreflective article has improved visual appearance by combining the fabric and retroreflective layers. An article, comprises a retroreflective layer formed of a resin that partially interpenetrates a fabric layer. Manufacturing a retroreflective article includes a retroreflective layer partially interpenetrating a fabric layer. The method includes disposing a layer of curable resin on a fabric layer; causing the layer of curable resin to partially penetrate the fabric layer; and curing the layer of curable resin, thereby forming the retroreflective layer partially interpenetrating the fabric layer.Type: ApplicationFiled: September 23, 2008Publication date: November 11, 2010Applicant: REFLEXITE CORPORATIONInventor: Patrick W. Mullen
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Patent number: 7790266Abstract: A reboundable optical structure includes a base layer; and an optical element layer formed with a reboundable polymeric material and attached to the base layer. The optical structure can include a diffuser, fresnel lens, linear prism film, collimating film, lenticular elements, and retroreflective structures. A method for forming a reboundable optical structure includes providing a base layer; and attaching an optical element layer formed with a reboundable polymeric material and attached to the base layer, thereby forming an optical structure.Type: GrantFiled: May 14, 2008Date of Patent: September 7, 2010Assignee: Reflexite CorporationInventor: Edward D. Phillips
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Patent number: 7771059Abstract: The present invention includes conformable retroreflective structures. In some embodiments, the conformable retroreflective structures are also shrink resistant. The conformable retroreflective structures include a transparent plasticized polyvinyl chloride film having a first side and a second side; a first transparent polymer layer overlying the first side of the plasticized polyvinyl chloride film; a second transparent polymer layer overlying the second side of the plasticized polyvinyl chloride film; an array of retroreflective cube-corner elements underlying the second transparent polymer layer; and a plasticizer resistant adhesive underlying the array of retroreflective cube-corner elements. In some embodiments, the first and second transparent polymer layers are transparent, radiation-cured polymer layers.Type: GrantFiled: December 5, 2008Date of Patent: August 10, 2010Assignee: Reflexite CorporationInventor: Leo Moreau