Patents by Inventor Joung Wook PARK

Joung Wook PARK 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).

  • Asymmetric type lens and street lamp including the same
    Patent number: 8820979
    Abstract: A lens is provided in an asymmetric shape including at least two curved surfaces with different light distribution angles. Therefore, uniformity ratio of illuminance and coefficient of utilization (CU) may be increased while reducing dazzle. When a lighting apparatus including the lens is used as a street light, light directly incident to a driver is minimized, thereby reducing dazzle to the driver. During a night drive, brightness at a far forward position of the driver may be increased. In addition, light emitted toward a street may be increased while reducing light emitted toward a sidewalk. As a result, uniformity ratio of illuminance and coefficient of utilization (CU) may be increased. Also, light pollution may be reduced.
    Type: Grant
    Filed: March 19, 2012
    Date of Patent: September 2, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Chang Mo Lee, Ki Un Lee, Sang Ho Yoon, Dae Il Seok, Seung Gyun Jung, Joung Wook Park, Jin Pyo Hong, Jae Yeong Joo, Gi Hoon Kim, Sang Bin Song, Bo Hyun Jo
  • ASYMMETRIC TYPE LENS AND STREET LAMP INCLUDING THE SAME
    Publication number: 20130051030
    Abstract: A lens is provided in an asymmetric shape including at least two curved surfaces with different light distribution angles. Therefore, uniformity ratio of illuminance and coefficient of utilization (CU) may be increased while reducing dazzle. When a lighting apparatus including the lens is used as a street light, light directly incident to a driver is minimized, thereby reducing dazzle to the driver. During a night drive, brightness at a far forward position of the driver may be increased. In addition, light emitted toward a street may be increased while reducing light emitted toward a sidewalk. As a result, uniformity ratio of illuminance and coefficient of utilization (CU) may be increased. Also, light pollution may be reduced.
    Type: Application
    Filed: March 19, 2012
    Publication date: February 28, 2013
    Inventors: Chang Mo LEE, Ki Un LEE, Sang Ho YOON, Dae II SEOK, Seung Gyun JUNG, Joung Wook PARK, Jin Pyo HONG, Jae Yeong JOO, Gi Hoon KIM, Sang Bin SONG, Bo Hyun JO