The 6-foot-6 Lane appeared in two games with Detroit last season after playing for Jacksonville from 2010 to 2012. He will be reunited with defensive coordinator Mel Tucker, who was in charge of the Jaguars defense when Lane played there.
A fifth-round pick by Jacksonville, he has 64 tackles and three sacks in his career.
The Bears announced the move on Monday.
Lane played his high school football at Iola-Scandanavia.
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