Patents by Inventor Kenneth Blauvelt

Kenneth Blauvelt 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: 4800404
    Abstract: Glare testing apparatus enclosed in a housing includes multiple discrete light sources for creating a glare condition in the field of view from an individual being tested to a target, and provision is made for selecting the location or locations of active glare sources, which includes a centrally located source of headlight glare, and a plurality of peripheral sources which can be energized selectively or collectively. Provision is also made for adjusting target luminance, glare intensity and the apparent distance between the target and the eye position in order to test near and far visual acuity under varied conditions of luminance and glare.
    Type: Grant
    Filed: September 22, 1986
    Date of Patent: January 24, 1989
    Assignee: Vistech Consultants, Inc.
    Inventors: Arthur P. Ginsburg, David W. Evans, Kenneth Blauvelt