×

Flicker and frequency doubling in virtual reality

  • US 20020047987A1
  • Filed: 07/02/2001
  • Published: 04/25/2002
  • Est. Priority Date: 07/31/1996
  • Status: Active Grant
First Claim
Patent Images

1. A visual function testing apparatus, comprising:

  • a light source, said light source being modulated to create a flickering image;

    a scanning system, said scanning system being adapted to scan said flickering image from said light source for display to an eye of a patient;

    a gaze sensing device adapted to sense the orientation of an eye of a patient and to generate a gaze orientation signal;

    a response sensing device adapted to sense a patient'"'"'s response to said flickering image and to generate a response signal; and

    a computer, said computer being connected to said light source to modulate said light source to create said flickering image, said computer being connected to said gaze sensing device to receive said gaze orientation signal, said computer being connected to said response sensing device to receive said response signal, and said computer being programmed to interpret said gaze orientation signal and said response signal to evaluate at least one visual function of the patient.

View all claims
  • 3 Assignments
Timeline View
Assignment View
    ×
    ×