Patent ID: 9699433
Date: 2017-07-04
CPC Classifications: G02B,G06F,H04N

Claim:
1. A method to produce re-focusable vision for a viewer by detecting a desired focus depth of an eye of said viewer comprising the steps of: providing an image display, an image generator, a vision re-focus sensor comprising at least one optical emitter and at least one optical detector, and a processor; displaying a first image to said viewer by said image display; a scanning probing light being emitted towards said eye by said at least one optical emitter with varying incident angles; said probing light being reflected by cornea of said eye into at least one reflection light that is received by said at least one optical detector; said at least one optical detector detecting eye information including shape change of said cornea with intensity and angle of said reflection light; said eye information being utilized by said processor to calculate a desired focus depth of said eye; said desired focus depth being used to produce one second image by said image generator; and said image display displaying said second image to said viewer.