Patents by Inventor Sverre Lefsaker
Sverre Lefsaker has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 8998447Abstract: Embodiments of the present invention provide apparatuses and systems for providing illumination for projectors. Two or more sets of reflectors are used to combine light beams emitted by two or more two-dimensional arrays of light sources to provide a combined light beam with high brightness toward a pupil of a projection system. Solid state light sources, such as diode lasers and LEDs, may be used as light sources at relatively low cost and low powers, and with long lifetime.Type: GrantFiled: September 26, 2012Date of Patent: April 7, 2015Assignee: Projectdesign ASInventors: Oyvind Svensen, Kjell Einar Olsen, Sverre Lefsaker, Tobby Simonsen, Ronny Bjomsen
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Patent number: 8905578Abstract: Embodiments of the present invention provide apparatuses and systems for providing illumination for projectors. One or more beam combiners are used to combine multiple light beams to provide a combined light beam toward to a pupil of an imaging device in a projector. Solid state light sources, such as diode lasers and light-emitting diodes (LEDs), may be used as light sources at relatively low cost and low power, and with long lifetime. In one embodiment, an optical beam combiner comprises a first reflective surface, a second reflective surface, and a transparent region disposed between the first reflector surface and the second reflective surface. In another embodiment, an optical device comprising an array of optical beam combiners is provided. In a further embodiment, light sources comprising a plurality of light-emitting devices mounted on curved surfaces are utilized in conjunction with an optical beam combiner to provide illumination for a projector.Type: GrantFiled: September 21, 2012Date of Patent: December 9, 2014Assignee: Projectdesign AGInventors: Oyvind Svensen, Kjell Einar Olsen, Sverre Lefsaker, Tobby Simonsen, Ronny Bjornsen
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Patent number: 8702239Abstract: Projection systems and apparatuses for providing high contrast projected images with an aspect ratio different from the aspect ratio of the imager or micro-display used are provided. Light integrators having an aspect ratio equal to the aspect ratio to the desired projected image or video can be inserted into the optical train of the projection system or apparatus to illuminate only an active area equal to having an aspect ratio equal to the aspect ratio of the desired projected image or be. By reducing the illuminated area of the imager, light scattered or otherwise diverted from pixels held in the “off state” in the non-active area of imager can be greatly reduced to provide darker dark levels in the frame surrounding the project image or video.Type: GrantFiled: February 14, 2011Date of Patent: April 22, 2014Assignee: Projectdesign ASInventors: Kjell Einar Olsen, Tobby Simonsen, Sverre Lefsaker, Jørn Eriksen
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Publication number: 20140085888Abstract: Embodiments of the present invention provide apparatuses and systems for providing illumination for projectors. Two or more sets of reflectors are used to combine light beams emitted by two or more two-dimensional arrays of light sources to provide a combined light beam with high brightness toward a pupil of a projection system. Solid state light sources, such as diode lasers and LEDs, may be used as light sources at relatively low cost and low powers, and with long lifetime.Type: ApplicationFiled: September 26, 2012Publication date: March 27, 2014Applicant: PROJECTIONDESIGN ASInventors: Øyvind Svensen, Kjell Einar Olsen, Sverre Lefsaker, Tobby Simonsen, Ronny Bjømsen
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Patent number: 8622551Abstract: Image projectors with increased light intensity and methods for providing brighter images are provided. Image projectors, described herein, can provide the brightness while still providing any or all of compactness, low power consumption, and long lifetime. To increase brightness, sectional mirrors are used to respectively compress the light from two light sources into a single pupil (e.g. an aperture) of an imaging device. The compression can be accomplished by regions (e.g. sections) of the mirror having different angles with respect to the pupil. Relatively little light may be lost in the compression since minima for a light intensity pattern from a light source may occur between the regions that reflect the light.Type: GrantFiled: July 20, 2012Date of Patent: January 7, 2014Assignee: Projectiondesign asInventors: Odd Ragnar Andersen, Kjell Einar Olsen, Sverre Lefsaker
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Publication number: 20130010266Abstract: Systems methods and apparatus for projection system including a control/illumination module and a separate projector head are disclosed. The control/illumination module can be disposed in the location separate from location in which the projector head is disposed and/or used. The projector head can be coupled to the control/illumination module via a control signal connection, and illumination transmission connection and an optional coolant connection. By separating the control/illumination module from the projector head module, many, if not all, noise and heat producing elements can be implemented in the control/illumination module, thus providing a smaller sized, quieter, efficient and lower maintenance projector head that can be installed in implementations in which extraneous noise, heat, and leaked light can be detrimental to the viewing experience.Type: ApplicationFiled: July 5, 2011Publication date: January 10, 2013Applicant: projectiondesign asInventors: Kjell Einar Olsen, Per-Kristian Thogersen, Hans Erik Davidsen, Sverre Lefsaker, Jorn Eriksen
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Publication number: 20120281187Abstract: Image projectors with increased light intensity and methods for providing brighter images are provided. Image projectors, described herein, can provide the brightness while still providing any or all of compactness, low power consumption, and long lifetime. To increase brightness, sectional mirrors are used to respectively compress the light from two light sources into a single pupil (e.g. an aperture) of an imaging device. The compression can be accomplished by regions (e.g. sections) of the mirror having different angles with respect to the pupil. Relatively little light may be lost in the compression since minima for a light intensity pattern from a light source may occur between the regions that reflect the light.Type: ApplicationFiled: July 20, 2012Publication date: November 8, 2012Applicant: Projectiondesign asInventors: Odd Ragnar Andersen, Kjell Einar Olsen, Sverre Lefsaker
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Publication number: 20120206695Abstract: Projection systems and apparatuses for providing high contrast projected images with an aspect ratio different from the aspect ratio of the imager or micro-display used are provided. Light integrators having an aspect ratio equal to the aspect ratio to the desired projected image or video can be inserted into the optical train of the projection system or apparatus to illuminate only an active area equal to having an aspect ratio equal to the aspect ratio of the desired projected image or be. By reducing the illuminated area of the imager, light scattered or otherwise diverted from pixels held in the “off state” in the non-active area of imager can be greatly reduced to provide darker dark levels in the frame surrounding the project image or video.Type: ApplicationFiled: February 14, 2011Publication date: August 16, 2012Applicant: projectiondesign asInventors: Kjell Einar Olsen, Tobby Simonsen, Sverre Lefsaker, Jørn Eriksen
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Patent number: 8235536Abstract: Image projectors with increased light intensity and methods for providing brighter images are provided. Image projectors, described herein, can provide the brightness while still providing any or all of compactness, low power consumption, and long lifetime. To increase brightness, sectional mirrors are used to respectively compress the light from two light sources into a single pupil (e.g. an aperture) of an imaging device. The compression can be accomplished by regions (e.g. sections) of the mirror having different angles with respect to the pupil. Relatively little light may be lost in the compression since minima for a light intensity pattern from a light source may occur between the regions that reflect the light.Type: GrantFiled: November 6, 2008Date of Patent: August 7, 2012Assignee: projectiondesign asInventors: Odd Ragnar Andersen, Kjell Einar Olsen, Sverre Lefsaker
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Publication number: 20100110390Abstract: Image projectors with increased light intensity and methods for providing brighter images are provided. Image projectors, described herein, can provide the brightness while still providing any or all of compactness, low power consumption, and long lifetime. To increase brightness, sectional mirrors are used to respectively compress the light from two light sources into a single pupil (e.g. an aperture) of an imaging device. The compression can be accomplished by regions (e.g. sections) of the mirror having different angles with respect to the pupil. Relatively little light may be lost in the compression since minima for a light intensity pattern from a light source may occur between the regions that reflect the light.Type: ApplicationFiled: November 6, 2008Publication date: May 6, 2010Applicant: projectiondesign asInventors: Odd Ragnar Andersen, Kjell Einar Olsen, Sverre Lefsaker