Patents by Inventor Susan L. Kent

Susan L. Kent 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).

  • Publication number: 20200284963
    Abstract: An optical element includes an optical surface configured to receive light at a predetermined wavelength in a range from about 400 nm to about 1000 nm. The optical surface is defined by a vertical axis and a horizontal axis defining four Cartesian quadrants sequentially numbered in a counter-clockwise direction. A first longitudinal section of the optical surface is centered on the vertical axis and a second longitudinal section of the optical surface is centered on the horizontal axis. The first and second longitudinal section each extend across opposite edges of the optical surface and have a same substantially uniform retardance for substantially normally incident light. The optical element includes four discrete retarder sections. Each retarder section is disposed on a respective Cartesian quadrant of the optical surface and has a retardance difference from the substantially uniform retardance of the optical surface that is greater than zero.
    Type: Application
    Filed: October 19, 2018
    Publication date: September 10, 2020
    Inventors: Zhisheng Yun, Michael L. Steiner, Jo A. Etter, Timothy L. Wong, Gilles J. Benoit, John D. Le, Erin A. McDowell, Susan L. Kent
  • Publication number: 20200192126
    Abstract: An optical lens including first and second polarizers, a partial reflector disposed between the first and second polarizers, a first phase retarder disposed between the first polarizer and the partial reflector, and a second phase retarder disposed between the partial reflector and the second polarizer is described. The optical lens is a single piece configured for use in an eyewear. Eyewear including at least one of the optical lenses is also described.
    Type: Application
    Filed: November 8, 2017
    Publication date: June 18, 2020
    Inventors: Zhisheng Yun, Andrew J. Ouderkirk, Susan L. Kent, Erin A. McDowell, Timothy L. Wong, John D. Le, Michael L. Steiner
  • Publication number: 20080128927
    Abstract: Methods of making optical films having continuous phase/disperse phase morphology are disclosed which can control the nature of the disperse phase in such films to yield enhanced optical properties. When used in liquid crystal displays and the like, the films can increase the screen luminance beyond that achievable with known continuous phase/disperse phase optical films.
    Type: Application
    Filed: October 16, 2007
    Publication date: June 5, 2008
    Inventors: Ronald J. Tabar, Susan L. Kent, Richard C. Allen
  • Patent number: 6934082
    Abstract: Optical devices using reflective polarizers and, in particular, diffusely reflective polarizers are provided. Many of the optical devices utilize the diffusely reflecting and specularly transmitting properties of diffusely reflecting polarizers to enhance their optical characteristics. The optical devices include a lighting system which uses a reflector formed from a diffusely reflecting polarizer attached to a specular reflector. Another optical device is a display apparatus which uses a diffusely reflecting polarizer layer in combination with a turning lens which folds shallow angle light toward a light modulating layer. Other optical devices exploit the depolarizing characteristics of a diffusely reflecting polarizer when reflecting light. Still other optical devices use diffusely reflecting polarizers to recycle light and improve display illumination.
    Type: Grant
    Filed: June 28, 2004
    Date of Patent: August 23, 2005
    Assignee: 3M Innovative Properties Company
    Inventors: Richard C. Allen, Sanford Cobb, Jr., Elisa M. Cross, Susan L. Kent, Timothy J. Nevitt, Andrew J. Ouderkirk, Ronald J. Tabar, David L. Wortman
  • Publication number: 20040164434
    Abstract: Methods of making optical films having continuous phase/disperse phase morphology are disclosed which can control the nature of the disperse phase in such films to yield enhanced optical properties. When used in liquid crystal displays and the like, the films can increase the screen luminance beyond that achievable with known continuous phase/disperse phase optical films.
    Type: Application
    Filed: October 23, 2003
    Publication date: August 26, 2004
    Inventors: Ronald J. Tabar, Susan L. Kent, Richard C. Allen
  • Patent number: 6673275
    Abstract: An improved optical film having a continuous/disperse phase morphology and a method for making the same is provided. At least one of the continuous and disperse phases comprises a blend of homopolymers which are inter-reacted, as by transesterification. The resulting films exhibit a higher degree of birefringence for a given level of strain than analogous films in which the blend is replaced by a random copolymer.
    Type: Grant
    Filed: October 11, 2000
    Date of Patent: January 6, 2004
    Assignee: 3M Innovative Properties Company
    Inventors: Richard C. Allen, Susan L. Kent, Ronald J. Tabar, Elisa M. Cross, William Ward Merrill, Stephen A. Johnson, Peter D. Condo, Timothy J. Hebrink, Joseph A. Gangi
  • Patent number: 6654170
    Abstract: An improved optical film having a continuous/disperse phase morphology and a method for making the same is provided. At least one of the continuous and disperse phases comprises a blend of homopolymers which are inter-reacted, as by transesterification. The resulting films exhibit a higher degree of birefringence for a given level of strain than analogous films in which the blend is replaced by a random copolymer.
    Type: Grant
    Filed: October 11, 2000
    Date of Patent: November 25, 2003
    Assignee: 3M Innovative Properties Company
    Inventors: William Ward Merrill, Susan L. Kent, Ronald J. Tabar, Richard C. Allen, Elisa M. Cross, Stephen A. Johnson, Peter D. Condo, Timothy J. Hebrink, Joseph A. Gangi
  • Patent number: 6627300
    Abstract: An improved optical film having a continuous/disperse phase morphology and a method for making the same is provided. At least one of the continuous and disperse phases comprises a blend of homopolymers which are inter-reacted, as by transesterification. The resulting films exhibit a higher degree of birefringence for a given level of strain than analogous films in which the blend is replaced by a random copolymer.
    Type: Grant
    Filed: October 11, 2000
    Date of Patent: September 30, 2003
    Assignee: 3M Innovative Properties Company
    Inventors: Susan L. Kent, Ronald J. Tabar, Richard C. Allen, Elisa M. Cross, William Ward Merrill, Stephen A. Johnson, Peter D. Condo, Timothy J. Hebrink, Joseph A. Gangi
  • Publication number: 20010036013
    Abstract: Optical devices using reflective polarizers and, in particular, diffusely reflective polarizers are provided. Many of the optical devices utilize the diffusely reflecting and specularly transmitting properties of diffusely reflecting polarizers to enhance their optical characteristics. The optical devices include a lighting system which uses a reflector formed from a diffusely reflecting polarizer attached to a specular reflector. Another optical device is a display apparatus which uses a diffusely reflecting polarizer layer in combination with a turning lens which folds shallow angle light toward a light modulating layer. Other optical devices exploit the depolarizing characteristics of a diffusely reflecting polarizer when reflecting light. Still other optical devices use diffusely reflecting polarizers to recycle light and improve display illumination.
    Type: Application
    Filed: May 31, 2001
    Publication date: November 1, 2001
    Applicant: 3M Innovative Properties Company
    Inventors: Richard C. Allen, Sanford Cobb, Elisa M. Cross, Susan L. Kent, Timothy J. Nevitt, Andrew J. Ouderkirk, Ronald J. Tabar, David L. Wortman
  • Patent number: 6268961
    Abstract: An optical film includes a reflective polarizing element and a particle-containing layer. The reflective polarizing element substantially reflects light having a first polarization state and substantially transmits a second polarization state. The particle-containing layer is disposed on the reflective polarizing element and in a same optical path as the reflective polarizing element. The particle-containing layer is configured and arranged to transmit light and includes a plurality of particles that roughen an exterior surface of the optical film. Preferably, using the optical film in an optical device does not substantially reduce the gain advantage of the optical device when compared with an optical device utilizing the same optical film without particles in the surface layer. Also described are optical devices using the optical film and methods of making and using the optical films.
    Type: Grant
    Filed: February 4, 2000
    Date of Patent: July 31, 2001
    Assignee: 3M Innovative Properties Company
    Inventors: Timothy J. Nevitt, Carl A. Stover, William L. Kausch, Guy M. Kallman, Robert W. Horn, Timothy J. Hebrink, James A. Olson, Mark B. O'Neill, Elisa M. Cross, Susan L. Kent
  • Patent number: 5811493
    Abstract: Extrudable compositions comprising a thermoplastic polyester continuous phase, a thermoplastic polyolefin discrete phase, and a polyester-polyether, diblock, compatibilizer are disclosed. Voided films made from the composition are also disclosed. The voided films have paper-like texture and appearance.
    Type: Grant
    Filed: October 21, 1994
    Date of Patent: September 22, 1998
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: Susan L. Kent