TA的每日心情 | 衰 2024-11-22 10:09 |
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文章的摘要:Virtual reality head-mounted displays (VR-HMDs) are crucial to Metaverse whichappears to be one of the most popular terms to have been adopted over the internet recently. It
provides basic infrastructure and entrance to cater for the next evolution of social interaction, and
it has already been widely used in many fields. The VR-HMDs with traditional aspherical or
Fresnel optics are not suitable for long-term usage because of the image quality, system size, and
weight. In this study, we designed and developed a large exit pupil diameter (EPD), compact,
and lightweight VR-HMD with catadioptric optics. The mathematical formula for designing
the catadioptric VR optics is derived. The reason why this kind of immersive VR optics could
achieve a compact size and large EPD simultaneously is answered. Various catadioptric forms
are systematically proposed and compared. The design can achieve a diagonal field of view
(FOV) of 96° at -1 diopter, with an EPD of 10mm at 11mm eye relief (ERF). The overall length
(OAL) of the system was less than 20 mm. A prototype of a compact catadioptric VR-HMD
system was successfully developed.
文章的链接:https://opg.optica.org/oe/fulltext.cfm?uri=oe-30-5-6584&id=469446#articleFigures
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