Failsafe operation of eye-mountable device
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United States of America Patent
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Nov 30, 2021
Grant Date -
Aug 29, 2019
app pub date -
May 9, 2019
filing date -
Jun 13, 2014
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Abstract
An embodiment of an eye-mountable device includes an optical lens; an accommodation actuator to provide vision accommodation for the optical lens; a controller including an accommodation logic to select one of a plurality of vision accommodation states for the device, the plurality of vision accommodation states including at least a failsafe focal distance; and a failsafe subsystem including a system health detector, the system health detector to monitor for one or more operational indicators for the device, wherein the failsafe subsystem is to cause the device to transition to a failsafe mode upon the failsafe subsystem identifying a failure condition for the device, the failsafe mode includes setting the vision accommodation state to be the failsafe focal distance.
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