Heads-up vision analyzer
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United States of America Patent
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Feb 20, 2018
Issued Date -
N/A
app pub date -
Mar 26, 2012
filing date -
Mar 25, 2011
priority date (Note) -
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Abstract
A binocular vision analyzer apparatus is used for determining a prescription of visual aids for the eyes of an individual. The apparatus includes first and second targets respectively corresponding to the first and second eyes of the individual and at least one illuminator unit for illuminating the targets. An optical system is configured to present respective virtual images of the first and second targets so as to be viewable by the respective first and second eyes. At least one beam splitter disposed in front of the first and second eyes directs the virtual images toward the respective eyes. The apparatus also includes first and second spherical correction devices and first and second cylindrical correction devices that respectively correspond to the first and second eyes.
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