26 June 2017 Folded optics with birefringent reflective polarizers
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Proceedings Volume 10335, Digital Optical Technologies 2017; 103350E (2017) https://doi.org/10.1117/12.2270266
Event: SPIE Digital Optical Technologies, 2017, Munich, Germany
Polymeric, birefringent reflective polarizers have been used to produce compact, mid-field-of-view eyepieces and wide field-of-view optics for virtual reality (VR) head-mounted displays using the “pancake” lens configuration. Multiple configurations for pancake lens systems are discussed as are their advantages and disadvantages relative to refractive systems. Polarization control is an important consideration and the polarizing effects of different components are discussed. Designs for mid-FOV and wide FOV are presented and additional benefits of using folded optics for virtual reality systems are explored.
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Timothy L. Wong, Zhisheng Yun, Gregg Ambur, Jo Etter, "Folded optics with birefringent reflective polarizers", Proc. SPIE 10335, Digital Optical Technologies 2017, 103350E (26 June 2017); doi: 10.1117/12.2270266; https://doi.org/10.1117/12.2270266

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