×

DEVICE AND METHOD FOR OPTICALLY MEASURING THE TRANSMISSION AND DIFFUSION OF OCULAR MEDIA

  • US 20110157551A1
  • Filed: 09/08/2009
  • Published: 06/30/2011
  • Est. Priority Date: 09/08/2008
  • Status: Active Grant
First Claim
Patent Images

1. An optical device for measuring the transmission and diffusion of a tissue (7) of the front segment of an eye, said device comprising:

  • at least one light source (1) capable of emitting a light beam,an optical collimation system (2, 4) capable of directing the collimated light beam towards a tissue (7) of the front segment of an eye to be characterized,an optical mire (6) placed on the optical path between the optical collimation system (4) and the tissue (7) of the front segment,an optical imaging system (9) capable of receiving a light beam transmitted by the mire (6) and by the front segment tissue (7) and capable of forming an image of the mire (6) on an image detector (10), andan image processing system (11) capable of calculating a modulation transfer function for the tissue (7) from an image (22) of the mire through the tissue (7),characterized in that;

    said optical mire (6) comprises a set of alternately light (13.1, 13.2 . . . ) and dark (14.1, 14.2 . . . ) angular sectors (13, 14) radially distributed from a central point (O).

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×