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Research Area

Author

  • Jun Nishikawa, Mariko Nishiyama

Company

  • Sony Group Corporation

Venue

  • IODC

Date

  • 2021

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Wide-Angle Stereoscopic Optical System Using Ultrashort Throw Lenses with a Catadioptric Relay

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Abstract

To conform to the widening of head-mounted displays, stereoscopic optical systems require a high resolution of at least 4 K, and a field of view of at least 120°. However, the dimensions of the large-format cameras used to record high- quality content mean an appropriate stereo base cannot be achieved. Moreover, the wide angle of view prevents the use of a half-mirror rig to reduce the stereo base. Therefore, this study presents a solution where the stereo base is reduced using ultrashort throw lenses with a catadioptric relay in which the pupil is formed on the object side. Hence, a basic design for a wide-angle stereoscopic system with a half-field angle of ~126° and a stereo base of 62 mm is proposed.

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