Display device with image depth simulation
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United States of America Patent
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Apr 28, 2015
Grant Date -
May 2, 2013
app pub date -
Oct 26, 2011
filing date -
Oct 26, 2011
priority date (Note) -
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Abstract
An optical system is provided with a transparent element having a proximal surface on one side and a distal surface on an opposite side. A plurality of light-scattering structures is formed in the distal surface. A positionally-corresponding plurality of surface lenses is provided on the proximal surface. The light-scattering structures and the surface lenses may be arranged in a slightly angled or offset square array relative to a side surface of the transparent element. A rastering, collimated light source, directs a beam of light roughly in the plane of the transparent element towards individual light-scattering structures. The light-scattering structures scatter at least a portion of the light towards the corresponding surface lenses, which may collect and collimate the light towards a viewing location. The optical system may be incorporated into a head-mounted display (HMD).
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