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Fig. 9 | PhotoniX

Fig. 9

From: Multifocal displays: review and prospect

Fig. 9

Optical elements with polarization-dependent focal length. Multifocal displays can be enabled by polarization-sensitive lenses, including (a) birefringent crystal lens, (b) LC Fresnel lens, (c) Pancharatnam-Berry phase lens, and (d) CLC lens. (a) and (c) work for linear polarization, while (b) and (d) function with circular polarization

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