Method and apparatus for adjusting optical device to correspond to eye positions
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United States of America Patent
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-
Apr 29, 2003
Grant Date -
Apr 25, 2002
app pub date -
Sep 7, 2001
filing date -
Sep 7, 2000
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A head-mounted display or other optical device which provides at least a first image to at least one eye of a user can be adjusted for changing the alignment of an image path with respect to a user's eye position. An alignment beam generator is mounted so as to move with the image path device so a user can use characteristics of the alignment beam to achieve a desired alignment of the image path. Preferably, the alignment beam is configured, such as by making it substantially narrow-beam, linear and/or non-dispersive, such that beam is substantially invisible to the user until it is within a preferred alignment range, so as to provide a binary or visible/invisible, indicator of alignment.
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