Patents by Inventor Jung Won CHA

Jung Won CHA 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: 9417061
    Abstract: Disclosed is a rangefinder comprising: a housing shaped like a cylinder and opened frontward and backward; an object lens comprising one or more lenses arranged in a front end portion of the housing and facing an object targeted for distance measurement; a display providing a user with an image from the object lens; an image split prism arranged in between the object lens and the display, making the image from the object lens be split and focused, and installed movably along an optical axis within the housing so that a space between split images can be adjusted; and a distance indicator indicating distance from the targeted object in accordance with positions of the image split prism, in a state that the position of the image split prism is adjusted to set up the space between the split images to a reference position.
    Type: Grant
    Filed: February 5, 2013
    Date of Patent: August 16, 2016
    Inventor: Jung Won Cha
  • Publication number: 20160018221
    Abstract: Disclosed is a rangefinder comprising: a housing shaped like a cylinder and opened frontward and backward; an object lens comprising one or more lenses arranged in a front end portion of the housing and facing an object targeted for distance measurement; a display providing a user with an image from the object lens; an image split prism arranged in between the object lens and the display, making the image from the object lens be split and focused, and installed movably along an optical axis within the housing so that a space between split images can be adjusted; and a distance indicator indicating distance from the targeted object in accordance with positions of the image split prism, in a state that the position of the image split prism is adjusted to set up the space between the split images to a reference position.
    Type: Application
    Filed: February 5, 2013
    Publication date: January 21, 2016
    Inventor: Jung Won CHA