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'''OST-HMD''' (Optical see-through head mounted display) is a type of head mounted display that uses optical see-through panels and projects light off of them or from them.

'''OST-HMD''' stands for optical see-through head mounted display.<ref>Design of a Pupil-Matched Occlusion-Capable Optical See-Through Wearable Display https://ieeexplore.ieee.org/abstract/document/9416829</ref> It is a type of head mounted display that uses optical see-through panels and projects light off of them or from them.

Most head mounted units made with [[waveguide]]s are OST-HMDs.

Most head mounted units made with [[waveguide]]s are OST-HMDs.