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).

  • Patent number: 8998447
    Abstract: 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: Grant
    Filed: September 26, 2012
    Date of Patent: April 7, 2015
    Assignee: Projectdesign AS
    Inventors: Oyvind Svensen, Kjell Einar Olsen, Sverre Lefsaker, Tobby Simonsen, Ronny Bjomsen
  • Patent number: 8905578
    Abstract: 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: Grant
    Filed: September 21, 2012
    Date of Patent: December 9, 2014
    Assignee: Projectdesign AG
    Inventors: Oyvind Svensen, Kjell Einar Olsen, Sverre Lefsaker, Tobby Simonsen, Ronny Bjornsen
  • Patent number: 8702239
    Abstract: 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: Grant
    Filed: February 14, 2011
    Date of Patent: April 22, 2014
    Assignee: Projectdesign AS
    Inventors: Kjell Einar Olsen, Tobby Simonsen, Sverre Lefsaker, Jørn Eriksen
  • Publication number: 20140085888
    Abstract: 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: Application
    Filed: September 26, 2012
    Publication date: March 27, 2014
    Applicant: PROJECTIONDESIGN AS
    Inventors: Øyvind Svensen, Kjell Einar Olsen, Sverre Lefsaker, Tobby Simonsen, Ronny Bjømsen
  • Patent number: 8622551
    Abstract: 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: Grant
    Filed: July 20, 2012
    Date of Patent: January 7, 2014
    Assignee: Projectiondesign as
    Inventors: Odd Ragnar Andersen, Kjell Einar Olsen, Sverre Lefsaker
  • Publication number: 20130010266
    Abstract: 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: Application
    Filed: July 5, 2011
    Publication date: January 10, 2013
    Applicant: projectiondesign as
    Inventors: Kjell Einar Olsen, Per-Kristian Thogersen, Hans Erik Davidsen, Sverre Lefsaker, Jorn Eriksen
  • Publication number: 20120281187
    Abstract: 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: Application
    Filed: July 20, 2012
    Publication date: November 8, 2012
    Applicant: Projectiondesign as
    Inventors: Odd Ragnar Andersen, Kjell Einar Olsen, Sverre Lefsaker
  • Publication number: 20120206695
    Abstract: 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: Application
    Filed: February 14, 2011
    Publication date: August 16, 2012
    Applicant: projectiondesign as
    Inventors: Kjell Einar Olsen, Tobby Simonsen, Sverre Lefsaker, Jørn Eriksen
  • Patent number: 8235536
    Abstract: 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: Grant
    Filed: November 6, 2008
    Date of Patent: August 7, 2012
    Assignee: projectiondesign as
    Inventors: Odd Ragnar Andersen, Kjell Einar Olsen, Sverre Lefsaker
  • Publication number: 20100110390
    Abstract: 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: Application
    Filed: November 6, 2008
    Publication date: May 6, 2010
    Applicant: projectiondesign as
    Inventors: Odd Ragnar Andersen, Kjell Einar Olsen, Sverre Lefsaker