HEAD MOUNTED DISPLAY WITH REDUCED THICKNESS USING A SINGLE AXIS OPTICAL SYSTEM
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United States of America Patent
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Sep 6, 2017
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Sep 6, 2016
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Systems and apparatuses are provided for reducing the focal length of a head mounted display (HMD) while maintaining image quality and providing diopter adjustment for a user of the HMD. A lens stack comprising a plurality of lenses provides negative and positive focal length to achieve a traditional eye box. The lens stack is positioned along the same optical axis as the user's line of sight, while still achieving a small form factor with a reduced total track length,
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