Virtual image display apparatus
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United States of America Patent
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Nov 8, 2016
Grant Date -
Mar 5, 2015
app pub date -
Aug 27, 2014
filing date -
Sep 3, 2013
priority date (Note) -
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status (Latency Note)
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Abstract
An optical system of a virtual image display apparatus is configured such that, in regard to a width in a first direction and a width in a second direction at a first surface position, and a width in a first direction and a width in a second direction at a second surface position corresponding to the width in the first direction and the width in the second direction at the first surface position, predetermined conditional expressions are established. With this, in an optical system for an HMD which includes a light guide member having a free-form surface, it is possible to allow video light to be emitted toward eyes in an appropriate state while controlling the light guide of video light accurately and maintaining high performance.
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