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Phototherapy method and device

  • US 9,044,567 B2
  • Filed: 03/30/2005
  • Issued: 06/02/2015
  • Est. Priority Date: 03/31/2004
  • Status: Active Grant
First Claim
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1. Phototherapy method, acting on a set of eyes of an individual with a head, each eye comprising a pupil, a retina and a fovea, through light rays of at least one specific wavelength, emitted by at least one light source which is stationary relative to the head of the individual, wherein the method comprises the steps of:

  • arranging the light source at the periphery of the field of vision so as to allow the usual activities of the individual; and

    using an off-axis diffractive optical element to deflect said light rays by diffraction onto a specific zone of the retina so as to maintain vision.

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